Rule
Dark Skies
Dark Skies Forecast for Tromso, Norwegian Fjords
Tromsø, Troms, Norway
Tromsø occupies Tromsøya between broad sounds, with the Arctic Cathedral and bridge forming recognisable city-scale foregrounds across the water. West of the island, Kvaløya’s steeper peaks and fjords replace urban light with open coastal horizons.
0 matching opportunities in the 14-day forecast.
Upcoming Opportunities
When all conditions match, PhotoWeather marks an opportunity window.
Times shown in Europe/Oslo
No matching opportunities in this 14-day forecast
See which requirements block the most forecast hours below.
72-hour requirements breakdown
When available, this detailed table covers only the stated 72-hour horizon (typically 72–168 hours, depending on available hourly data). Opportunity records above span the full 14-day forecast period, so this table does not explain that entire period. Times shown in Europe/Oslo.
Most common blockers
Ranked across the 95-hour forecast horizon, not the full opportunity period.
- Total Cloud Coverage99% of hours
- Astronomical Night81% of hours
- Visibility71% of hours
0matching hours in the displayed 72-hour forecast
OR logic: one branch per group is enough
Meets requirement
Misses requirement
Time Europe/Oslo | Astronomical Night Any | Total Cloud Coverage ≤ 20.0% | Visibility ≥ 12000.0m | Precipitation Chance ≤ 10.0% | Moon Illumination OR1·B1≤ 35.0% | Moon Altitude OR1·B2≤ 10.0° |
|---|---|---|---|---|---|---|
| Sun, Sep 20 | ||||||
| Rule fails. 07:00 | Astronomical Night: No. Misses requirement | Total Cloud Coverage: 89%. Misses requirement | Visibility: 220m. Misses requirement | Precipitation Chance: 0%. Meets requirement | Moon Illumination: 66%. Misses requirement | Moon Altitude: -47°. Meets requirement |
| Rule fails. 08:00 | Astronomical Night: No. Misses requirement | Total Cloud Coverage: 63%. Misses requirement | Visibility: 300m. Misses requirement | Precipitation Chance: 0%. Meets requirement | Moon Illumination: 66%. Misses requirement | Moon Altitude: -47°. Meets requirement |
| Rule fails. 09:00 | Astronomical Night: No. Misses requirement | Total Cloud Coverage: 32%. Misses requirement | Visibility: 340m. Misses requirement | Precipitation Chance: 0%. Meets requirement | Moon Illumination: 66%. Misses requirement | Moon Altitude: -46°. Meets requirement |
| Rule fails. 10:00 | Astronomical Night: No. Misses requirement | Total Cloud Coverage: 39%. Misses requirement | Visibility: 49340m. Meets requirement | Precipitation Chance: 0%. Meets requirement | Moon Illumination: 66%. Misses requirement | Moon Altitude: -43°. Meets requirement |
| Rule fails. 11:00 | Astronomical Night: No. Misses requirement | Total Cloud Coverage: 40%. Misses requirement | Visibility: 5600m. Misses requirement | Precipitation Chance: 0%. Meets requirement | Moon Illumination: 66%. Misses requirement | Moon Altitude: -39°. Meets requirement |
| Rule fails. 12:00 | Astronomical Night: No. Misses requirement | Total Cloud Coverage: 28%. Misses requirement | Visibility: 2680m. Misses requirement | Precipitation Chance: 0%. Meets requirement | Moon Illumination: 66%. Misses requirement | Moon Altitude: -34°. Meets requirement |
| Rule fails. 13:00 | Astronomical Night: No. Misses requirement | Total Cloud Coverage: 28%. Misses requirement | Visibility: 3460m. Misses requirement | Precipitation Chance: 0%. Meets requirement | Moon Illumination: 66%. Misses requirement | Moon Altitude: -29°. Meets requirement |
| Rule fails. 14:00 | Astronomical Night: No. Misses requirement | Total Cloud Coverage: 33%. Misses requirement | Visibility: 3200m. Misses requirement | Precipitation Chance: 0%. Meets requirement | Moon Illumination: 66%. Misses requirement | Moon Altitude: -24°. Meets requirement |
| Rule fails. 15:00 | Astronomical Night: No. Misses requirement | Total Cloud Coverage: 39%. Misses requirement | Visibility: 3540m. Misses requirement | Precipitation Chance: 0%. Meets requirement | Moon Illumination: 66%. Misses requirement | Moon Altitude: -19°. Meets requirement |
| Rule fails. 16:00 | Astronomical Night: No. Misses requirement | Total Cloud Coverage: 54%. Misses requirement | Visibility: 4960m. Misses requirement | Precipitation Chance: 0%. Meets requirement | Moon Illumination: 66%. Misses requirement | Moon Altitude: -15°. Meets requirement |
| Rule fails. 17:00 | Astronomical Night: No. Misses requirement | Total Cloud Coverage: 51%. Misses requirement | Visibility: 8140m. Misses requirement | Precipitation Chance: 0%. Meets requirement | Moon Illumination: 66%. Misses requirement | Moon Altitude: -11°. Meets requirement |
| Rule fails. 18:00 | Astronomical Night: No. Misses requirement | Total Cloud Coverage: 38%. Misses requirement | Visibility: 13000m. Meets requirement | Precipitation Chance: 0%. Meets requirement | Moon Illumination: 66%. Misses requirement | Moon Altitude: -8°. Meets requirement |
| Rule fails. 19:00 | Astronomical Night: No. Misses requirement | Total Cloud Coverage: 41%. Misses requirement | Visibility: 18700m. Meets requirement | Precipitation Chance: 0%. Meets requirement | Moon Illumination: 66%. Misses requirement | Moon Altitude: -6.1°. Meets requirement |
| Rule fails. 20:00 | Astronomical Night: No. Misses requirement | Total Cloud Coverage: 32%. Misses requirement | Visibility: 57480m. Meets requirement | Precipitation Chance: 0%. Meets requirement | Moon Illumination: 66%. Misses requirement | Moon Altitude: -5.3°. Meets requirement |
| Rule fails. 21:00 | Astronomical Night: No. Misses requirement | Total Cloud Coverage: 21%. Misses requirement | Visibility: 52520m. Meets requirement | Precipitation Chance: 0%. Meets requirement | Moon Illumination: 66%. Misses requirement | Moon Altitude: -5.6°. Meets requirement |
| Rule fails. 22:00 | Astronomical Night: No. Misses requirement | Total Cloud Coverage: 18%. Meets requirement | Visibility: 52700m. Meets requirement | Precipitation Chance: 1%. Meets requirement | Moon Illumination: 66%. Misses requirement | Moon Altitude: -7°. Meets requirement |
| Rule fails. 23:00 | Astronomical Night: Yes. Meets requirement | Total Cloud Coverage: 24%. Misses requirement | Visibility: 220m. Misses requirement | Precipitation Chance: 6%. Meets requirement | Moon Illumination: 66%. Misses requirement | Moon Altitude: -9.5°. Meets requirement |
| Mon, Sep 21 | ||||||
| Rule fails. 24:00 | Astronomical Night: Yes. Meets requirement | Total Cloud Coverage: 53%. Misses requirement | Visibility: 140m. Misses requirement | Precipitation Chance: 17%. Misses requirement | Moon Illumination: 66%. Misses requirement | Moon Altitude: -13°. Meets requirement |
| Rule fails. 01:00 | Astronomical Night: Yes. Meets requirement | Total Cloud Coverage: 93%. Misses requirement | Visibility: 180m. Misses requirement | Precipitation Chance: 32%. Misses requirement | Moon Illumination: 66%. Misses requirement | Moon Altitude: -17°. Meets requirement |
| Rule fails. 02:00 | Astronomical Night: Yes. Meets requirement | Total Cloud Coverage: 94%. Misses requirement | Visibility: 160m. Misses requirement | Precipitation Chance: 45%. Misses requirement | Moon Illumination: 75%. Misses requirement | Moon Altitude: -22°. Meets requirement |
| Rule fails. 03:00 | Astronomical Night: No. Misses requirement | Total Cloud Coverage: 93%. Misses requirement | Visibility: 180m. Misses requirement | Precipitation Chance: 56%. Misses requirement | Moon Illumination: 75%. Misses requirement | Moon Altitude: -27°. Meets requirement |
| Rule fails. 04:00 | Astronomical Night: No. Misses requirement | Total Cloud Coverage: 95%. Misses requirement | Visibility: 280m. Misses requirement | Precipitation Chance: 65%. Misses requirement | Moon Illumination: 75%. Misses requirement | Moon Altitude: -31°. Meets requirement |
| Rule fails. 05:00 | Astronomical Night: No. Misses requirement | Total Cloud Coverage: 99%. Misses requirement | Visibility: 340m. Misses requirement | Precipitation Chance: 73%. Misses requirement | Moon Illumination: 75%. Misses requirement | Moon Altitude: -36°. Meets requirement |
| Rule fails. 06:00 | Astronomical Night: No. Misses requirement | Total Cloud Coverage: 100%. Misses requirement | Visibility: 680m. Misses requirement | Precipitation Chance: 79%. Misses requirement | Moon Illumination: 75%. Misses requirement | Moon Altitude: -40°. Meets requirement |
| Rule fails. 07:00 | Astronomical Night: No. Misses requirement | Total Cloud Coverage: 100%. Misses requirement | Visibility: 2000m. Misses requirement | Precipitation Chance: 83%. Misses requirement | Moon Illumination: 75%. Misses requirement | Moon Altitude: -43°. Meets requirement |
| Rule fails. 08:00 | Astronomical Night: No. Misses requirement | Total Cloud Coverage: 100%. Misses requirement | Visibility: 3700m. Misses requirement | Precipitation Chance: 86%. Misses requirement | Moon Illumination: 75%. Misses requirement | Moon Altitude: -44°. Meets requirement |
| Rule fails. 09:00 | Astronomical Night: No. Misses requirement | Total Cloud Coverage: 100%. Misses requirement | Visibility: 6000m. Misses requirement | Precipitation Chance: 89%. Misses requirement | Moon Illumination: 75%. Misses requirement | Moon Altitude: -44°. Meets requirement |
| Rule fails. 10:00 | Astronomical Night: No. Misses requirement | Total Cloud Coverage: 95%. Misses requirement | Visibility: 5460m. Misses requirement | Precipitation Chance: 92%. Misses requirement | Moon Illumination: 75%. Misses requirement | Moon Altitude: -43°. Meets requirement |
| Rule fails. 11:00 | Astronomical Night: No. Misses requirement | Total Cloud Coverage: 96%. Misses requirement | Visibility: 5540m. Misses requirement | Precipitation Chance: 94%. Misses requirement | Moon Illumination: 75%. Misses requirement | Moon Altitude: -40°. Meets requirement |
| Rule fails. 12:00 | Astronomical Night: No. Misses requirement | Total Cloud Coverage: 97%. Misses requirement | Visibility: 5760m. Misses requirement | Precipitation Chance: 95%. Misses requirement | Moon Illumination: 75%. Misses requirement | Moon Altitude: -35°. Meets requirement |
| Rule fails. 13:00 | Astronomical Night: No. Misses requirement | Total Cloud Coverage: 97%. Misses requirement | Visibility: 6180m. Misses requirement | Precipitation Chance: 96%. Misses requirement | Moon Illumination: 75%. Misses requirement | Moon Altitude: -31°. Meets requirement |
| Rule fails. 14:00 | Astronomical Night: No. Misses requirement | Total Cloud Coverage: 95%. Misses requirement | Visibility: 8980m. Misses requirement | Precipitation Chance: 96%. Misses requirement | Moon Illumination: 75%. Misses requirement | Moon Altitude: -26°. Meets requirement |
| Rule fails. 15:00 | Astronomical Night: No. Misses requirement | Total Cloud Coverage: 93%. Misses requirement | Visibility: 5260m. Misses requirement | Precipitation Chance: 98%. Misses requirement | Moon Illumination: 75%. Misses requirement | Moon Altitude: -20°. Meets requirement |
| Rule fails. 16:00 | Astronomical Night: No. Misses requirement | Total Cloud Coverage: 97%. Misses requirement | Visibility: 14680m. Meets requirement | Precipitation Chance: 100%. Misses requirement | Moon Illumination: 75%. Misses requirement | Moon Altitude: -16°. Meets requirement |
| Rule fails. 17:00 | Astronomical Night: No. Misses requirement | Total Cloud Coverage: 81%. Misses requirement | Visibility: 6240m. Misses requirement | Precipitation Chance: 98%. Misses requirement | Moon Illumination: 75%. Misses requirement | Moon Altitude: -11°. Meets requirement |
| Rule fails. 18:00 | Astronomical Night: No. Misses requirement | Total Cloud Coverage: 79%. Misses requirement | Visibility: 15840m. Meets requirement | Precipitation Chance: 87%. Misses requirement | Moon Illumination: 75%. Misses requirement | Moon Altitude: -7.4°. Meets requirement |
| Rule fails. 19:00 | Astronomical Night: No. Misses requirement | Total Cloud Coverage: 97%. Misses requirement | Visibility: 30980m. Meets requirement | Precipitation Chance: 71%. Misses requirement | Moon Illumination: 75%. Misses requirement | Moon Altitude: -4.5°. Meets requirement |
| Rule fails. 20:00 | Astronomical Night: No. Misses requirement | Total Cloud Coverage: 97%. Misses requirement | Visibility: 3620m. Misses requirement | Precipitation Chance: 57%. Misses requirement | Moon Illumination: 75%. Misses requirement | Moon Altitude: -2.7°. Meets requirement |
| Rule fails. 21:00 | Astronomical Night: No. Misses requirement | Total Cloud Coverage: 97%. Misses requirement | Visibility: 1620m. Misses requirement | Precipitation Chance: 47%. Misses requirement | Moon Illumination: 75%. Misses requirement | Moon Altitude: -2.1°. Meets requirement |
| Rule fails. 22:00 | Astronomical Night: Yes. Meets requirement | Total Cloud Coverage: 84%. Misses requirement | Visibility: 1580m. Misses requirement | Precipitation Chance: 38%. Misses requirement | Moon Illumination: 75%. Misses requirement | Moon Altitude: -2.6°. Meets requirement |
| Rule fails. 23:00 | Astronomical Night: Yes. Meets requirement | Total Cloud Coverage: 91%. Misses requirement | Visibility: 2320m. Misses requirement | Precipitation Chance: 31%. Misses requirement | Moon Illumination: 75%. Misses requirement | Moon Altitude: -4.2°. Meets requirement |
| Tue, Sep 22 | ||||||
| Rule fails. 24:00 | Astronomical Night: Yes. Meets requirement | Total Cloud Coverage: 94%. Misses requirement | Visibility: 23320m. Meets requirement | Precipitation Chance: 26%. Misses requirement | Moon Illumination: 75%. Misses requirement | Moon Altitude: -6.9°. Meets requirement |
| Rule fails. 01:00 | Astronomical Night: Yes. Meets requirement | Total Cloud Coverage: 92%. Misses requirement | Visibility: 2280m. Misses requirement | Precipitation Chance: 22%. Misses requirement | Moon Illumination: 75%. Misses requirement | Moon Altitude: -10°. Meets requirement |
| Rule fails. 02:00 | Astronomical Night: Yes. Meets requirement | Total Cloud Coverage: 84%. Misses requirement | Visibility: 1120m. Misses requirement | Precipitation Chance: 20%. Misses requirement | Moon Illumination: 82%. Misses requirement | Moon Altitude: -15°. Meets requirement |
| Rule fails. 03:00 | Astronomical Night: No. Misses requirement | Total Cloud Coverage: 89%. Misses requirement | Visibility: 580m. Misses requirement | Precipitation Chance: 22%. Misses requirement | Moon Illumination: 82%. Misses requirement | Moon Altitude: -19°. Meets requirement |
| Rule fails. 04:00 | Astronomical Night: No. Misses requirement | Total Cloud Coverage: 70%. Misses requirement | Visibility: 560m. Misses requirement | Precipitation Chance: 25%. Misses requirement | Moon Illumination: 82%. Misses requirement | Moon Altitude: -24°. Meets requirement |
| Rule fails. 05:00 | Astronomical Night: No. Misses requirement | Total Cloud Coverage: 58%. Misses requirement | Visibility: 520m. Misses requirement | Precipitation Chance: 27%. Misses requirement | Moon Illumination: 82%. Misses requirement | Moon Altitude: -29°. Meets requirement |
| Rule fails. 06:00 | Astronomical Night: No. Misses requirement | Total Cloud Coverage: 52%. Misses requirement | Visibility: 500m. Misses requirement | Precipitation Chance: 25%. Misses requirement | Moon Illumination: 82%. Misses requirement | Moon Altitude: -33°. Meets requirement |
| Rule fails. 07:00 | Astronomical Night: No. Misses requirement | Total Cloud Coverage: 73%. Misses requirement | Visibility: 460m. Misses requirement | Precipitation Chance: 21%. Misses requirement | Moon Illumination: 82%. Misses requirement | Moon Altitude: -37°. Meets requirement |
| Rule fails. 08:00 | Astronomical Night: No. Misses requirement | Total Cloud Coverage: 85%. Misses requirement | Visibility: 2100m. Misses requirement | Precipitation Chance: 16%. Misses requirement | Moon Illumination: 82%. Misses requirement | Moon Altitude: -40°. Meets requirement |
| Rule fails. 09:00 | Astronomical Night: No. Misses requirement | Total Cloud Coverage: 84%. Misses requirement | Visibility: 4260m. Misses requirement | Precipitation Chance: 10%. Meets requirement | Moon Illumination: 82%. Misses requirement | Moon Altitude: -41°. Meets requirement |
| Rule fails. 10:00 | Astronomical Night: No. Misses requirement | Total Cloud Coverage: 57%. Misses requirement | Visibility: 46440m. Meets requirement | Precipitation Chance: 4%. Meets requirement | Moon Illumination: 82%. Misses requirement | Moon Altitude: -40°. Meets requirement |
| Rule fails. 11:00 | Astronomical Night: No. Misses requirement | Total Cloud Coverage: 44%. Misses requirement | Visibility: 58400m. Meets requirement | Precipitation Chance: 0%. Meets requirement | Moon Illumination: 82%. Misses requirement | Moon Altitude: -38°. Meets requirement |
| Rule fails. 12:00 | Astronomical Night: No. Misses requirement | Total Cloud Coverage: 87%. Misses requirement | Visibility: 59400m. Meets requirement | Precipitation Chance: 0%. Meets requirement | Moon Illumination: 82%. Misses requirement | Moon Altitude: -35°. Meets requirement |
| Rule fails. 13:00 | Astronomical Night: No. Misses requirement | Total Cloud Coverage: 93%. Misses requirement | Visibility: 65960m. Meets requirement | Precipitation Chance: 0%. Meets requirement | Moon Illumination: 82%. Misses requirement | Moon Altitude: -31°. Meets requirement |
| Rule fails. 14:00 | Astronomical Night: No. Misses requirement | Total Cloud Coverage: 98%. Misses requirement | Visibility: 65980m. Meets requirement | Precipitation Chance: 0%. Meets requirement | Moon Illumination: 82%. Misses requirement | Moon Altitude: -26°. Meets requirement |
| Rule fails. 15:00 | Astronomical Night: No. Misses requirement | Total Cloud Coverage: 100%. Misses requirement | Visibility: 69200m. Meets requirement | Precipitation Chance: 1%. Meets requirement | Moon Illumination: 82%. Misses requirement | Moon Altitude: -21°. Meets requirement |
| Rule fails. 16:00 | Astronomical Night: No. Misses requirement | Total Cloud Coverage: 100%. Misses requirement | Visibility: 65980m. Meets requirement | Precipitation Chance: 3%. Meets requirement | Moon Illumination: 82%. Misses requirement | Moon Altitude: -16°. Meets requirement |
| Rule fails. 17:00 | Astronomical Night: No. Misses requirement | Total Cloud Coverage: 100%. Misses requirement | Visibility: 10960m. Misses requirement | Precipitation Chance: 8%. Meets requirement | Moon Illumination: 82%. Misses requirement | Moon Altitude: -11°. Meets requirement |
| Rule fails. 18:00 | Astronomical Night: No. Misses requirement | Total Cloud Coverage: 100%. Misses requirement | Visibility: 6600m. Misses requirement | Precipitation Chance: 17%. Misses requirement | Moon Illumination: 82%. Misses requirement | Moon Altitude: -6.3°. Meets requirement |
| Rule fails. 19:00 | Astronomical Night: No. Misses requirement | Total Cloud Coverage: 100%. Misses requirement | Visibility: 60580m. Meets requirement | Precipitation Chance: 28%. Misses requirement | Moon Illumination: 82%. Misses requirement | Moon Altitude: -2.6°. Meets requirement |
| Rule fails. 20:00 | Astronomical Night: No. Misses requirement | Total Cloud Coverage: 100%. Misses requirement | Visibility: 66000m. Meets requirement | Precipitation Chance: 39%. Misses requirement | Moon Illumination: 82%. Misses requirement | Moon Altitude: 0.09°. Meets requirement |
| Rule fails. 21:00 | Astronomical Night: No. Misses requirement | Total Cloud Coverage: 100%. Misses requirement | Visibility: 8460m. Misses requirement | Precipitation Chance: 49%. Misses requirement | Moon Illumination: 82%. Misses requirement | Moon Altitude: 1.7°. Meets requirement |
| Rule fails. 22:00 | Astronomical Night: Yes. Meets requirement | Total Cloud Coverage: 100%. Misses requirement | Visibility: 62180m. Meets requirement | Precipitation Chance: 58%. Misses requirement | Moon Illumination: 82%. Misses requirement | Moon Altitude: 2.2°. Meets requirement |
| Rule fails. 23:00 | Astronomical Night: Yes. Meets requirement | Total Cloud Coverage: 100%. Misses requirement | Visibility: 8440m. Misses requirement | Precipitation Chance: 65%. Misses requirement | Moon Illumination: 82%. Misses requirement | Moon Altitude: 1.4°. Meets requirement |
| Wed, Sep 23 | ||||||
| Rule fails. 24:00 | Astronomical Night: Yes. Meets requirement | Total Cloud Coverage: 100%. Misses requirement | Visibility: 5120m. Misses requirement | Precipitation Chance: 70%. Misses requirement | Moon Illumination: 82%. Misses requirement | Moon Altitude: -0.48°. Meets requirement |
| Rule fails. 01:00 | Astronomical Night: Yes. Meets requirement | Total Cloud Coverage: 100%. Misses requirement | Visibility: 6540m. Misses requirement | Precipitation Chance: 74%. Misses requirement | Moon Illumination: 82%. Misses requirement | Moon Altitude: -3.4°. Meets requirement |
| Rule fails. 02:00 | Astronomical Night: Yes. Meets requirement | Total Cloud Coverage: 100%. Misses requirement | Visibility: 6080m. Misses requirement | Precipitation Chance: 76%. Misses requirement | Moon Illumination: 89%. Misses requirement | Moon Altitude: -7.2°. Meets requirement |
| Rule fails. 03:00 | Astronomical Night: No. Misses requirement | Total Cloud Coverage: 100%. Misses requirement | Visibility: 6440m. Misses requirement | Precipitation Chance: 78%. Misses requirement | Moon Illumination: 89%. Misses requirement | Moon Altitude: -12°. Meets requirement |
| Rule fails. 04:00 | Astronomical Night: No. Misses requirement | Total Cloud Coverage: 100%. Misses requirement | Visibility: 8700m. Misses requirement | Precipitation Chance: 79%. Misses requirement | Moon Illumination: 89%. Misses requirement | Moon Altitude: -16°. Meets requirement |
| Rule fails. 05:00 | Astronomical Night: No. Misses requirement | Total Cloud Coverage: 55%. Misses requirement | Visibility: 6400m. Misses requirement | Precipitation Chance: 78%. Misses requirement | Moon Illumination: 89%. Misses requirement | Moon Altitude: -21°. Meets requirement |
| Rule fails. 06:00 | Astronomical Night: No. Misses requirement | Total Cloud Coverage: 92%. Misses requirement | Visibility: 18540m. Meets requirement | Precipitation Chance: 75%. Misses requirement | Moon Illumination: 89%. Misses requirement | Moon Altitude: -26°. Meets requirement |
How to read: colored cells show whether each predicate requirement is met; highlighted rows mean the full rule matched (an opportunity). For OR groups, only one branch is required, so some OR-branch predicates can be ✕ even in a matching hour.
Supporting forecast inputs
Additional hourly values for interpreting the forecast and any derived scores. See the separate requirements breakdown for rule logic; missing values are unavailable.
| Forecast time (Europe/Oslo) | Astronomical Night | Moon Altitude | Moon Illumination |
|---|---|---|---|
| Sun, Sep 20, 2026Sunrise · Sunset | |||
| Unavailable | -47° | 66% | |
| Unavailable | -47° | 66% | |
| Unavailable | -46° | 66% | |
| Unavailable | -43° | 66% | |
| Unavailable | -39° | 66% | |
| Unavailable | -34° | 66% | |
| Unavailable | -29° | 66% | |
| Unavailable | -24° | 66% | |
| Unavailable | -19° | 66% | |
| Unavailable | -15° | 66% | |
| Unavailable | -11° | 66% | |
| Unavailable | -8° | 66% | |
| Night | Unavailable | -6.1° | 66% |
| Night | Unavailable | -5.3° | 66% |
| Night | Unavailable | -5.6° | 66% |
| Night | Unavailable | -7° | 66% |
| Night | Unavailable | -9.5° | 66% |
| Mon, Sep 21, 2026Sunrise · Sunset | |||
| Night | Unavailable | -13° | 75% |
| Night | Unavailable | -17° | 75% |
| Night | Unavailable | -22° | 75% |
| Night | Unavailable | -27° | 75% |
| Night | Unavailable | -31° | 75% |
| Night | Unavailable | -36° | 75% |
| Night | Unavailable | -40° | 75% |
| Unavailable | -43° | 75% | |
| Unavailable | -44° | 75% | |
| Unavailable | -44° | 75% | |
| Unavailable | -43° | 75% | |
| Unavailable | -40° | 75% | |
| Unavailable | -35° | 75% | |
| Unavailable | -31° | 75% | |
| Unavailable | -26° | 75% | |
| Unavailable | -20° | 75% | |
| Unavailable | -16° | 75% | |
| Unavailable | -11° | 75% | |
| Unavailable | -7.4° | 75% | |
| Night | Unavailable | -4.5° | 75% |
| Night | Unavailable | -2.7° | 75% |
| Night | Unavailable | -2.1° | 75% |
| Night | Unavailable | -2.6° | 75% |
| Night | Unavailable | -4.2° | 75% |
| Tue, Sep 22, 2026Sunrise · Sunset | |||
| Night | Unavailable | -6.9° | 82% |
| Night | Unavailable | -10° | 82% |
| Night | Unavailable | -15° | 82% |
| Night | Unavailable | -19° | 82% |
| Night | Unavailable | -24° | 82% |
| Night | Unavailable | -29° | 82% |
| Night | Unavailable | -33° | 82% |
| Unavailable | -37° | 82% | |
| Unavailable | -40° | 82% | |
| Unavailable | -41° | 82% | |
| Unavailable | -40° | 82% | |
| Unavailable | -38° | 82% | |
| Unavailable | -35° | 82% | |
| Unavailable | -31° | 82% | |
| Unavailable | -26° | 82% | |
| Unavailable | -21° | 82% | |
| Unavailable | -16° | 82% | |
| Unavailable | -11° | 82% | |
| Unavailable | -6.3° | 82% | |
| Night | Unavailable | -2.6° | 82% |
| Night | Unavailable | 0.09° | 82% |
| Night | Unavailable | 1.7° | 82% |
| Night | Unavailable | 2.2° | 82% |
| Night | Unavailable | 1.4° | 82% |
| Wed, Sep 23, 2026Sunrise · Sunset | |||
| Night | Unavailable | -0.48° | 89% |
| Night | Unavailable | -3.4° | 89% |
| Night | Unavailable | -7.2° | 89% |
| Night | Unavailable | -12° | 89% |
| Night | Unavailable | -16° | 89% |
| Night | Unavailable | -21° | 89% |
| Night | Unavailable | -26° | 89% |
How this forecast is evaluated
See which weather signals PhotoWeather uses to identify Dark Skies conditions across Norwegian Fjords. The requirements and hourly values above show how those signals apply at Tromso.
Explore Dark Skies conditions across Norwegian Fjords →Recorded match history
Completed PhotoWeather forecast matches recorded for this exact rule at Tromso during the last 365 days.
Last 30 days
0
recorded matching windows
Last 90 days
0
recorded matching windows
Last 365 days
5
recorded matching windows · 65% average confidence
Only 5 completed matches are recorded in the last 365 days—insufficient history to identify a reliable typical start time or month.
These figures use completed PhotoWeather MatchEvent records from the previous 365 days only. They describe recorded forecast matches, not observations, climatological probability, or a guarantee of future conditions.
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How this forecast is made
Opportunities are threshold-based signals: PhotoWeather checks whether forecast conditions match the rules for a photography scenario. They are planning guidance, not guarantees. Forecasts can change as new model runs arrive, and confidence generally decreases farther into the forecast horizon, so recheck conditions before travelling.
The weather forecast foundation comes through Open-Meteo , which aggregates models from weather agencies. PhotoWeather applies condition-specific thresholds and derived calculations; not every condition uses every model or data input.
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