Rule
Cloudscapes
Cloudscapes Forecast for Isle of Lewis, Scotland
Stornoway, Scotland, United Kingdom
Lewis offers the Callanish standing stones, peat moorland, Atlantic beaches and rocky coast, with low cloud and winter darkness supporting moody studies.
20 matching opportunities in the 14-day forecast.
Hourly forecast scores
Forecast valid from Sep 20, 2026, 5:00 AM UTC (one hour; not an observation)Cloud Cover96%
Wind Gusts13.3m/s
Precipitation Chance54%
Air Pressure1009.1hPa
Upcoming Opportunities
When all conditions match, PhotoWeather marks an opportunity window.
Times shown in Europe/London
First upcoming window
Striking Cloud Drama at Sunrise
Isle of Lewis
Sun, Sep 20 · 06:00–07:00 · 1h window
Medium confidence
57%
☁️Cloud Drama Score80%
Cloud Cover: 67%
Wind Gusts: 12.0m/s
Precipitation Chance: 44%
Air Pressure: 1009.4hPa
Dramatic Cloud Drama
Isle of Lewis
Sun, Sep 20 · 17:00–18:00
☁️Cloud Drama Score:87%
Medium
Dramatic Cloud Drama at Sunrise
Isle of Lewis
Tue, Sep 22 · 08:00–09:00
☁️Cloud Drama Score:100%
Medium
Dramatic Cloud Drama
Isle of Lewis
Tue, Sep 22 · 09:00–10:00
☁️Cloud Drama Score:100%
Medium
Dramatic Cloud Drama at Sunrise
Isle of Lewis
Fri, Sep 25 · 06:00–07:00
☁️Cloud Drama Score:88.4%
Low
Striking Cloud Drama
Isle of Lewis
Fri, Sep 25 · 09:00–12:00
☁️Cloud Drama Score:78-80.6%
Low
Dramatic Cloud Drama
Isle of Lewis
Sat, Sep 26 · 11:00–18:00
☁️Cloud Drama Score:76.7-100%
Low
+13 more windows in the next 14 days
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/London.
Most common blockers
Ranked across the 72-hour forecast horizon, not the full opportunity period.
- Cloud Drama Score94% of hours
AND logic: all conditions required
Meets requirement
Misses requirement
Time Europe/London | Cloud Drama Score ≥ 75.0% |
|---|---|
| Sun, Sep 20 | |
| Rule passes. 06:00 | Cloud Drama Score: 80%. Meets requirement |
| Rule fails. 07:00 | Cloud Drama Score: 60%. Misses requirement |
| Rule fails. 08:00 | Cloud Drama Score: 51%. Misses requirement |
| Rule fails. 09:00 | Cloud Drama Score: 48%. Misses requirement |
| Rule fails. 10:00 | Cloud Drama Score: 23%. Misses requirement |
| Rule fails. 11:00 | Cloud Drama Score: 48%. Misses requirement |
| Rule fails. 12:00 | Cloud Drama Score: 28%. Misses requirement |
| Rule fails. 13:00 | Cloud Drama Score: 50%. Misses requirement |
| Rule fails. 14:00 | Cloud Drama Score: 56%. Misses requirement |
| Rule fails. 15:00 | Cloud Drama Score: 41%. Misses requirement |
| Rule fails. 16:00 | Cloud Drama Score: 55%. Misses requirement |
| Rule passes. 17:00 | Cloud Drama Score: 87%. Meets requirement |
| Rule fails. 18:00 | Cloud Drama Score: 67%. Misses requirement |
| Rule fails. 19:00 | Cloud Drama Score: 8.6%. Misses requirement |
| Rule fails. 20:00 | Cloud Drama Score: 9.6%. Misses requirement |
| Rule fails. 21:00 | Cloud Drama Score: 9.4%. Misses requirement |
| Rule fails. 22:00 | Cloud Drama Score: 2.5%. Misses requirement |
| Rule fails. 23:00 | Cloud Drama Score: 3%. Misses requirement |
| Mon, Sep 21 | |
| Rule fails. 24:00 | Cloud Drama Score: 2.7%. Misses requirement |
| Rule fails. 01:00 | Cloud Drama Score: 0.8%. Misses requirement |
| Rule fails. 02:00 | Cloud Drama Score: 0.2%. Misses requirement |
| Rule fails. 03:00 | Cloud Drama Score: 0%. Misses requirement |
| Rule fails. 04:00 | Cloud Drama Score: 0%. Misses requirement |
| Rule fails. 05:00 | Cloud Drama Score: 0%. Misses requirement |
| Rule fails. 06:00 | Cloud Drama Score: 59%. Misses requirement |
| Rule fails. 07:00 | Cloud Drama Score: 72%. Misses requirement |
| Rule fails. 08:00 | Cloud Drama Score: 39%. Misses requirement |
| Rule fails. 09:00 | Cloud Drama Score: 46%. Misses requirement |
| Rule fails. 10:00 | Cloud Drama Score: 16%. Misses requirement |
| Rule fails. 11:00 | Cloud Drama Score: 16%. Misses requirement |
| Rule fails. 12:00 | Cloud Drama Score: 16%. Misses requirement |
| Rule fails. 13:00 | Cloud Drama Score: 19%. Misses requirement |
| Rule fails. 14:00 | Cloud Drama Score: 15%. Misses requirement |
| Rule fails. 15:00 | Cloud Drama Score: 17%. Misses requirement |
| Rule fails. 16:00 | Cloud Drama Score: 21%. Misses requirement |
| Rule fails. 17:00 | Cloud Drama Score: 50%. Misses requirement |
| Rule fails. 18:00 | Cloud Drama Score: 23%. Misses requirement |
| Rule fails. 19:00 | Cloud Drama Score: 30%. Misses requirement |
| Rule fails. 20:00 | Cloud Drama Score: 30%. Misses requirement |
| Rule fails. 21:00 | Cloud Drama Score: 13%. Misses requirement |
| Rule fails. 22:00 | Cloud Drama Score: 13%. Misses requirement |
| Rule fails. 23:00 | Cloud Drama Score: 12%. Misses requirement |
| Tue, Sep 22 | |
| Rule fails. 24:00 | Cloud Drama Score: 15%. Misses requirement |
| Rule fails. 01:00 | Cloud Drama Score: 15%. Misses requirement |
| Rule fails. 02:00 | Cloud Drama Score: 15%. Misses requirement |
| Rule fails. 03:00 | Cloud Drama Score: 12%. Misses requirement |
| Rule fails. 04:00 | Cloud Drama Score: 4.5%. Misses requirement |
| Rule fails. 05:00 | Cloud Drama Score: 2.7%. Misses requirement |
| Rule fails. 06:00 | Cloud Drama Score: 74%. Misses requirement |
| Rule fails. 07:00 | Cloud Drama Score: 67%. Misses requirement |
| Rule passes. 08:00 | Cloud Drama Score: 100%. Meets requirement |
| Rule passes. 09:00 | Cloud Drama Score: 100%. Meets requirement |
| Rule fails. 10:00 | Cloud Drama Score: 40%. Misses requirement |
| Rule fails. 11:00 | Cloud Drama Score: 35%. Misses requirement |
| Rule fails. 12:00 | Cloud Drama Score: 43%. Misses requirement |
| Rule fails. 13:00 | Cloud Drama Score: 51%. Misses requirement |
| Rule fails. 14:00 | Cloud Drama Score: 74%. Misses requirement |
| Rule fails. 15:00 | Cloud Drama Score: 64%. Misses requirement |
| Rule fails. 16:00 | Cloud Drama Score: 42%. Misses requirement |
| Rule fails. 17:00 | Cloud Drama Score: 51%. Misses requirement |
| Rule fails. 18:00 | Cloud Drama Score: 42%. Misses requirement |
| Rule fails. 19:00 | Cloud Drama Score: 39%. Misses requirement |
| Rule fails. 20:00 | Cloud Drama Score: 39%. Misses requirement |
| Rule fails. 21:00 | Cloud Drama Score: 0%. Misses requirement |
| Rule fails. 22:00 | Cloud Drama Score: 0%. Misses requirement |
| Rule fails. 23:00 | Cloud Drama Score: 0%. Misses requirement |
| Wed, Sep 23 | |
| Rule fails. 24:00 | Cloud Drama Score: 0%. Misses requirement |
| Rule fails. 01:00 | Cloud Drama Score: 0%. Misses requirement |
| Rule fails. 02:00 | Cloud Drama Score: 0%. Misses requirement |
| Rule fails. 03:00 | Cloud Drama Score: 0%. Misses requirement |
| Rule fails. 04:00 | Cloud Drama Score: 0%. Misses requirement |
| Rule fails. 05:00 | Cloud Drama Score: 0%. Misses requirement |
How to read: colored cells show whether each predicate requirement is met; highlighted rows mean the full rule matched (an opportunity).
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/London) | Air Pressure | High Clouds | Low Clouds | Mid-Level Clouds | Precipitation Chance | Relative Humidity | Solar Elevation | Total Cloud Coverage | Visibility | Wind Gusts | Wind Speed |
|---|---|---|---|---|---|---|---|---|---|---|---|
| Sun, Sep 20, 2026Sunrise · Sunset | |||||||||||
| Night | 1009hPa | 0% | 85% | 0% | 54% | 77% | -9.3° | 96% | 59060m | 13m/s | 7.3m/s |
| Night | 1011hPa | 0% | 97% | 76% | 35% | 75% | -1.4° | 98% | 58840m | 11m/s | 6.1m/s |
| 1013hPa | 0% | 59% | 5% | 20% | 89% | 6.4° | 64% | 54640m | 12m/s | 6.4m/s | |
| 1014hPa | 0% | 28% | 0% | 8% | 80% | 14° | 28% | 60780m | 11m/s | 6.1m/s | |
| 1015hPa | 0% | 10% | 0% | 4% | 77% | 21° | 13% | 58000m | 13m/s | 7.5m/s | |
| 1017hPa | 0% | 55% | 0% | 15% | 71% | 27° | 57% | 52440m | 14m/s | 8m/s | |
| 1018hPa | 0% | 92% | 0% | 33% | 67% | 31° | 97% | 59760m | 13m/s | 7.4m/s | |
| 1019hPa | 0% | 45% | 0% | 43% | 66% | 33° | 55% | 60480m | 13m/s | 7.3m/s | |
| 1020hPa | 0% | 63% | 0% | 36% | 64% | 32° | 69% | 60440m | 13m/s | 7.1m/s | |
| 1021hPa | 0% | 18% | 0% | 20% | 63% | 29° | 18% | 60340m | 13m/s | 6.9m/s | |
| 1022hPa | 0% | 24% | 0% | 8% | 64% | 25° | 24% | 59700m | 12m/s | 6.8m/s | |
| 1023hPa | 20% | 29% | 0% | 3% | 66% | 18° | 43% | 59100m | 10m/s | 5.8m/s | |
| 1023hPa | 31% | 0% | 0% | 1% | 72% | 11° | 46% | 56720m | 7.7m/s | 4.3m/s | |
| 1024hPa | 100% | 0% | 0% | 0% | 80% | 3.5° | 100% | 52040m | 4m/s | 2.3m/s | |
| Night | 1024hPa | 100% | 0% | 0% | 0% | 89% | -4.6° | 100% | 43300m | 3.2m/s | 1.9m/s |
| Night | 1025hPa | 100% | 0% | 0% | 0% | 89% | -12° | 100% | 44180m | 3.8m/s | 2.2m/s |
| Night | 1025hPa | 100% | 65% | 100% | 0% | 83% | -19° | 100% | 48580m | 3.6m/s | 2.1m/s |
| Night | 1025hPa | 100% | 0% | 88% | 0% | 87% | -25° | 100% | 47920m | 4.1m/s | 2.5m/s |
| Mon, Sep 21, 2026Sunrise · Sunset | |||||||||||
| Night | 1025hPa | 100% | 52% | 100% | 1% | 85% | -29° | 100% | 50560m | 4.9m/s | 2.9m/s |
| Night | 1024hPa | 100% | 2% | 89% | 10% | 86% | -31° | 100% | 50560m | 4.9m/s | 2.9m/s |
| Night | 1024hPa | 84% | 0% | 100% | 33% | 81% | -30° | 100% | 54980m | 4.9m/s | 2.9m/s |
| Night | 1023hPa | 100% | 36% | 100% | 63% | 85% | -28° | 100% | 20520m | 6.4m/s | 3.8m/s |
| Night | 1022hPa | 48% | 38% | 100% | 86% | 90% | -23° | 100% | 17380m | 11m/s | 6.4m/s |
| Night | 1021hPa | 52% | 100% | 98% | 98% | 93% | -17° | 100% | 25180m | 12m/s | 6.9m/s |
| Night | 1021hPa | 66% | 100% | 98% | 100% | 95% | -9.6° | 100% | 12840m | 12m/s | 6.8m/s |
| Night | 1021hPa | 100% | 100% | 100% | 100% | 97% | -1.7° | 100% | 14300m | 10m/s | 6m/s |
| 1020hPa | 98% | 100% | 0% | 83% | 99% | 6.1° | 100% | 10020m | 11m/s | 6.6m/s | |
| 1021hPa | 0% | 100% | 4% | 57% | 100% | 14° | 100% | 4340m | 9.1m/s | 5.3m/s | |
| 1021hPa | 0% | 100% | 0% | 35% | 98% | 21° | 100% | 10860m | 9.8m/s | 5.6m/s | |
| 1021hPa | 0% | 100% | 0% | 21% | 98% | 26° | 100% | 10020m | 11m/s | 6.2m/s | |
| 1021hPa | 0% | 95% | 0% | 11% | 95% | 30° | 95% | 19400m | 13m/s | 7.2m/s | |
| 1021hPa | 0% | 95% | 0% | 4% | 92% | 32° | 95% | 23380m | 11m/s | 6.3m/s | |
| 1022hPa | 0% | 99% | 0% | 2% | 93% | 32° | 99% | 22040m | 10m/s | 5.8m/s | |
| 1022hPa | 0% | 100% | 0% | 3% | 94% | 29° | 100% | 19980m | 11m/s | 6.1m/s | |
| 1021hPa | 0% | 100% | 0% | 4% | 95% | 24° | 100% | 17080m | 11m/s | 6.4m/s | |
| 1021hPa | 0% | 99% | 25% | 4% | 93% | 18° | 99% | 21680m | 11m/s | 6.2m/s | |
| 1022hPa | 0% | 100% | 0% | 3% | 94% | 11° | 100% | 15680m | 11m/s | 6.3m/s | |
| 1021hPa | 0% | 99% | 0% | 4% | 94% | 3.1° | 99% | 14500m | 13m/s | 7.2m/s | |
| Night | 1022hPa | 0% | 96% | 0% | 7% | 94% | -5° | 96% | 20560m | 12m/s | 7m/s |
| Night | 1022hPa | 0% | 100% | 0% | 11% | 94% | -13° | 100% | 18440m | 11m/s | 6.4m/s |
| Night | 1022hPa | 0% | 100% | 0% | 14% | 95% | -20° | 100% | 16380m | 8.8m/s | 5.1m/s |
| Night | 1021hPa | 0% | 99% | 43% | 14% | 89% | -25° | 100% | 28200m | 8.7m/s | 4.9m/s |
| Tue, Sep 22, 2026Sunrise · Sunset | |||||||||||
| Night | 1021hPa | 0% | 82% | 0% | 12% | 89% | -29° | 85% | 30360m | 10m/s | 5.8m/s |
| Night | 1020hPa | 0% | 80% | 0% | 16% | 89% | -31° | 92% | 31320m | 12m/s | 7.1m/s |
| Night | 1020hPa | 0% | 83% | 0% | 30% | 89% | -31° | 92% | 31920m | 12m/s | 6.8m/s |
| Night | 1019hPa | 0% | 62% | 0% | 49% | 90% | -28° | 86% | 30840m | 12m/s | 6.7m/s |
| Night | 1019hPa | 0% | 68% | 0% | 65% | 90% | -23° | 77% | 31520m | 16m/s | 9.2m/s |
| Night | 1019hPa | 5% | 100% | 64% | 78% | 94% | -17° | 100% | 9570m | 13m/s | 7.9m/s |
| Night | 1019hPa | 23% | 100% | 88% | 88% | 95% | -9.9° | 100% | 8260m | 11m/s | 7.1m/s |
| Night | 1019hPa | 50% | 100% | 100% | 90% | 95% | -2° | 100% | 4485m | 8.5m/s | 5.5m/s |
| 1018hPa | 39% | 74% | 74% | 79% | 91% | 5.8° | 74% | 12060m | 13m/s | 8.6m/s | |
| 1020hPa | 17% | 39% | 32% | 59% | 89% | 13° | 38% | 17400m | 11m/s | 7.2m/s | |
| 1021hPa | 0% | 14% | 0% | 43% | 85% | 20° | 14% | 22740m | 9.9m/s | 6.2m/s | |
| 1021hPa | 0% | 12% | 0% | 34% | 78% | 26° | 13% | 24120m | 9.8m/s | 6m/s | |
| 1022hPa | 0% | 20% | 0% | 29% | 70% | 30° | 24% | 25520m | 10m/s | 6.2m/s | |
| 1022hPa | 0% | 27% | 2% | 24% | 64% | 32° | 38% | 26900m | 10m/s | 6.3m/s | |
| 1022hPa | 20% | 27% | 0% | 20% | 62% | 31° | 53% | 26920m | 10m/s | 6.1m/s | |
| 1022hPa | 48% | 26% | 0% | 17% | 62% | 29° | 71% | 26940m | 9.5m/s | 5.8m/s | |
| 1022hPa | 70% | 22% | 2% | 14% | 63% | 24° | 84% | 26960m | 8.8m/s | 5.4m/s | |
| 1022hPa | 79% | 15% | 22% | 10% | 65% | 18° | 87% | 26580m | 7.8m/s | 4.9m/s | |
| 1022hPa | 83% | 6% | 50% | 7% | 68% | 10° | 86% | 26200m | 6.7m/s | 4.3m/s | |
| 1022hPa | 86% | 0% | 73% | 4% | 72% | 2.7° | 86% | 25820m | 5.8m/s | 3.9m/s | |
| Night | 1022hPa | 95% | 0% | 87% | 2% | 76% | -5.4° | 91% | 25060m | 5.3m/s | 3.7m/s |
| Night | 1022hPa | 100% | 0% | 97% | 1% | 80% | -13° | 98% | 24300m | 5.1m/s | 3.5m/s |
| Night | 1022hPa | 100% | 0% | 100% | 0% | 83% | -20° | 100% | 23540m | 4.9m/s | 3.4m/s |
| Night | 1022hPa | 72% | 0% | 94% | 1% | 85% | -26° | 93% | 23020m | 4.5m/s | 3.2m/s |
| Wed, Sep 23, 2026Sunrise · Sunset | |||||||||||
| Night | 1021hPa | 32% | 0% | 83% | 2% | 86% | -30° | 82% | 22520m | 4.2m/s | 3m/s |
| Night | 1021hPa | 2% | 0% | 72% | 4% | 87% | -32° | 72% | 22000m | 3.9m/s | 2.9m/s |
| Night | 1021hPa | 0% | 0% | 63% | 5% | 89% | -31° | 64% | 20920m | 3.7m/s | 2.8m/s |
| Night | 1020hPa | 0% | 0% | 56% | 6% | 92% | -28° | 58% | 19840m | 3.7m/s | 2.7m/s |
| Night | 1020hPa | 0% | 9% | 55% | 8% | 93% | -24° | 58% | 18760m | 4m/s | 2.9m/s |
| Night | 1020hPa | 1% | 40% | 68% | 14% | 92% | -17° | 70% | 14220m | 5.1m/s | 3.5m/s |
How this forecast is evaluated
See which weather signals PhotoWeather uses to identify Cloudscapes conditions across Scotland. The requirements and hourly values above show how those signals apply at Isle of Lewis.
Explore Cloudscapes conditions across Scotland →Recorded match history
Completed PhotoWeather forecast matches recorded for this exact rule at Isle of Lewis during the last 365 days.
Last 30 days
47
recorded matching windows · 70% average confidence
Last 90 days
121
recorded matching windows · 70% average confidence
Last 365 days
278
recorded matching windows · 69% average confidence
Most frequent recorded start hour
08:00 local time, shared by 29 of 277 matches recorded in the last 365 days.
Most represented month
August, with 50 of 277 matches recorded in the last 365 days.
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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