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Rule Fog Hunter

Fog Hunter Forecast for Helsinki, Southern Finland

Helsingfors, Uusimaa, Finland

Granite shores, low Baltic islands, Suomenlinna’s fortifications, and neoclassical waterfront buildings give Helsinki varied maritime foregrounds.

Currently

Real-time conditions
Fog Probability
0%
Dewpoint Spread4.0°C
Visibility24135 (Clear)
Relative Humidity77%
Wind Speed4.9m/s (calm conditions)

Upcoming Opportunities

When all conditions match, PhotoWeather marks an opportunity window.

Times shown in Europe/Helsinki

No opportunities in the next 14 days

See which requirements block the most forecast hours below.

Most common blockers (95-hour forecast)

  • Fog Probability100% of hours

How this forecast is evaluated

See which weather signals PhotoWeather uses to identify Fog Hunter conditions across Southern Finland. The requirements and hourly values below show how those signals apply at Helsinki.

Explore Fog Hunter conditions across Southern Finland →

Recorded match history

Completed PhotoWeather forecast matches recorded for this exact rule at Helsinki during the last 365 days.

Last 30 days
0
recorded matching windows
Last 90 days
6
recorded matching windows · 79% average confidence
Last 365 days
10
recorded matching windows · 82% average confidence
Most represented month

June, with 6 of 10 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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95-hour requirements breakdown

When available, the detailed table below covers only the stated 95-hour horizon (typically 72–168 hours, depending on available hourly data). Opportunity records above span the next 14 days, so this table does not explain that entire 14-day period.

What passed or failed, hour by hour
0matching hours in the next 95 hours
AND logic: all conditions required
Meets requirement
Misses requirement
Time
Europe/Helsinki
Fog Probability
≥ 75.0%
Sat, Aug 22
22:000%
23:000%
Sun, Aug 23
24:000%
01:000%
02:000%
03:000%
04:000%
05:000%
06:000%
07:000%
08:000%
09:000%
10:000%
11:000%
12:000%
13:000%
14:000%
15:000%
16:000%
17:000%
18:000%
19:000%
20:000%
21:000%
22:000%
23:000%
Mon, Aug 24
24:000%
01:000%
02:000%
03:000%
04:000%
05:000%
06:000%
07:000%
08:000%
09:000%
10:000%
11:000%
12:000%
13:000%
14:000%
15:000%
16:000%
17:000%
18:000%
19:000%
20:000%
21:000%
22:000%
23:000%
Tue, Aug 25
24:000%
01:000%
02:000%
03:000%
04:000%
05:000%
06:000%
07:000%
08:000%
09:000%
10:000%
11:000%
12:000%
13:000%
14:000%
15:000%
16:000%
17:000%
18:000%
19:000%
20:000%
21:000%
22:000%
23:000%
Wed, Aug 26
24:000%
01:000%
02:000%
03:000%
04:000%
05:000%
06:000%
07:000%
08:000%
09:000%
10:000%
11:000%
12:000%
13:000%
14:000%
15:000%
16:000%
17:000%
18:000%
19:000%
20:000%
How to read: colored cells show whether each predicate requirement is met; highlighted rows mean the full rule matched (an opportunity).

What does Fog Probability mean?

Inputs that drive the score

This derived score summarizes multiple raw weather signals. The table below shows the supporting inputs hour by hour, so you can see what's pushing the score up or down.

Time
Europe/Helsinki
Clear Sky Probability (Ensemble)
%
Dew Point
°C
Rainfall
mm
Relative Humidity
%
Snowfall
cm
Solar Elevation
°
Temperature
°C
Total Precipitation
mm
Vapor Pressure Deficit
kPa
Visibility
m
Wind Gusts
m/s
Wind Speed
m/s
Sun, Aug 23 Sunrise 05:53 Sunset 20:50
23:00 ☾
0% 11°C 0mm 77% 0cm -13° 15°C 0mm 0.38kPa 24135m 12m/s 4.9m/s
Mon, Aug 24 Sunrise 05:53 Sunset 20:50
24:00 ☾
0% 11°C 0mm 80% 0cm -17° 14°C 0mm 0.32kPa 24135m 12m/s 5m/s
01:00 ☾
0% 11°C 0mm 84% 0cm -18° 14°C 0mm 0.26kPa 24135m 12m/s 4.9m/s
02:00 ☾
0% 11°C 0mm 88% 0cm -18° 13°C 0mm 0.18kPa 24134m 11m/s 4.7m/s
03:00 ☾
0% 11°C 0mm 89% 0cm -16° 13°C 0mm 0.16kPa 24135m 12m/s 4.7m/s
04:00 ☾
6% 11°C 0mm 90% 0cm -12° 13°C 0mm 0.14kPa 24135m 11m/s 4.6m/s
05:00 ☾
12% 11°C 0mm 92% 0cm -6.7° 12°C 0mm 0.11kPa 24134m 11m/s 4.5m/s
06:00
18% 11°C 0mm 94% 0cm 0.24° 12°C 0mm 0.08kPa 24134m 11m/s 4.5m/s
07:00
17% 11°C 0mm 93% 0cm 6.9° 12°C 0mm 0.1kPa 24134m 11m/s 4.4m/s
08:00
15% 11°C 0mm 87% 0cm 14° 13°C 0mm 0.2kPa 24134m 11m/s 4.7m/s
09:00
14% 11°C 0mm 79% 0cm 22° 14°C 0mm 0.34kPa 24135m 9.6m/s 4.9m/s
10:00
17% 11°C 0mm 72% 0cm 28° 16°C 0mm 0.5kPa 24134m 8.2m/s 5.2m/s
11:00
19% 10°C 0mm 66% 0cm 34° 17°C 0mm 0.65kPa 24134m 7.3m/s 5m/s
12:00
22% 10°C 0mm 62% 0cm 39° 18°C 0mm 0.77kPa 24135m 7.1m/s 4.8m/s
13:00
18% 10°C 0mm 60% 0cm 41° 18°C 0mm 0.82kPa 24134m 6.7m/s 4.6m/s
14:00
14% 9.8°C 0mm 58% 0cm 40° 18°C 0mm 0.88kPa 24134m 6.1m/s 4.4m/s
15:00
10% 9.6°C 0mm 56% 0cm 38° 19°C 0.06mm 0.96kPa 24135m 6.2m/s 4.3m/s
16:00
11% 9.7°C 0mm 56% 0cm 33° 19°C 0mm 0.95kPa 24135m 6.3m/s 4.2m/s
17:00
11% 9.4°C 0mm 55% 0cm 27° 19°C 0mm 0.98kPa 24134m 6.4m/s 3.7m/s
18:00
12% 10°C 0mm 59% 0cm 20° 18°C 0mm 0.86kPa 24135m 5.9m/s 3m/s
19:00
10% 11°C 0mm 68% 0cm 12° 17°C 0.13mm 0.61kPa 23380m 6.9m/s 3.3m/s
20:00
9% 11°C 0mm 72% 0cm 5° 16°C 0.19mm 0.49kPa 24135m 7.8m/s 3m/s
21:00 ☾
7% 11°C 0mm 82% 0cm -2° 14°C 0.19mm 0.27kPa 24135m 7.4m/s 2.7m/s
22:00 ☾
15% 10°C 0mm 85% 0cm -8.3° 13°C 0mm 0.22kPa 24134m 8.3m/s 2.8m/s
23:00 ☾
23% 10°C 0mm 86% 0cm -13° 12°C 0mm 0.2kPa 24135m 9.5m/s 3.2m/s
Tue, Aug 25 Sunrise 05:55 Sunset 20:48
24:00 ☾
31% 9.7°C 0mm 86% 0cm -17° 12°C 0mm 0.2kPa 24135m 10m/s 3.5m/s
01:00 ☾
31% 9.5°C 0mm 88% 0cm -19° 11°C 0mm 0.16kPa 24134m 9m/s 3.1m/s
02:00 ☾
31% 9.4°C 0mm 90% 0cm -19° 11°C 0mm 0.13kPa 24135m 8.5m/s 3m/s
03:00 ☾
31% 9.5°C 0mm 92% 0cm -16° 11°C 0mm 0.1kPa 24135m 8.4m/s 3.1m/s
04:00 ☾
40% 9.6°C 0mm 94% 0cm -12° 10°C 0mm 0.07kPa 24134m 8.3m/s 3.1m/s
05:00 ☾
49% 9.6°C 0mm 94% 0cm -7° 10°C 0mm 0.07kPa 24134m 8.9m/s 3.4m/s
06:00
58% 9.2°C 0mm 94% 0cm 0.01° 10°C 0mm 0.07kPa 24134m 9.1m/s 3.4m/s
07:00
63% 8.9°C 0mm 89% 0cm 6.7° 11°C 0mm 0.14kPa 24134m 9.6m/s 3.8m/s
08:00
67% 8.9°C 0mm 80% 0cm 14° 12°C 0mm 0.28kPa 24135m 9m/s 3.5m/s
09:00
72% 8.5°C 0mm 70% 0cm 21° 14°C 0mm 0.48kPa 24134m 7.7m/s 4m/s
10:00
78% 8.2°C 0mm 62% 0cm 28° 16°C 0mm 0.68kPa 24135m 7.7m/s 4.3m/s
11:00
83% 7.6°C 0mm 55% 0cm 34° 17°C 0mm 0.86kPa 24134m 7.2m/s 4.4m/s
12:00
89% 7.6°C 0mm 51% 0cm 38° 18°C 0mm 0.99kPa 24134m 7.2m/s 4.5m/s
13:00
85% 7.5°C 0mm 48% 0cm 40° 19°C 0mm 1.1kPa 24135m 6.9m/s 4.2m/s
14:00
82% 7.5°C 0mm 46% 0cm 40° 19°C 0mm 1.2kPa 24135m 6.8m/s 4m/s
15:00
78% 7.8°C 0mm 45% 0cm 37° 20°C 0mm 1.3kPa 24134m 6.5m/s 3.8m/s
16:00
61% 8.2°C 0mm 46% 0cm 33° 20°C 0mm 1.3kPa 24134m 6.1m/s 3.4m/s
17:00
45% 8.7°C 0mm 48% 0cm 26° 20°C 0mm 1.2kPa 24135m 5.3m/s 3m/s
18:00
28% 9.8°C 0mm 53% 0cm 19° 20°C 0mm 1.1kPa 24134m 4.8m/s 2.1m/s
19:00
24% 11°C 0mm 64% 0cm 12° 18°C 0mm 0.73kPa 24135m 4.4m/s 1.6m/s
20:00
19% 11°C 0mm 68% 0cm 4.7° 17°C 0mm 0.6kPa 24135m 4.3m/s 1.9m/s
21:00 ☾
15% 10°C 0mm 76% 0cm -2.3° 14°C 0mm 0.39kPa 24134m 3.1m/s 2.2m/s
22:00 ☾
31% 9.9°C 0mm 78% 0cm -8.7° 14°C 0mm 0.35kPa 24135m 3.4m/s 2.3m/s
23:00 ☾
47% 9.8°C 0mm 79% 0cm -14° 13°C 0mm 0.31kPa 24135m 3.3m/s 2.3m/s
Wed, Aug 26 Sunrise 05:58 Sunset 20:45
24:00 ☾
63% 9.7°C 0mm 81% 0cm -17° 13°C 0mm 0.27kPa 24135m 3.3m/s 2.3m/s
01:00 ☾
68% 9.6°C 0mm 84% 0cm -19° 12°C 0mm 0.24kPa 24135m 3.4m/s 2.4m/s
02:00 ☾
72% 9.4°C 0mm 84% 0cm -19° 12°C 0mm 0.22kPa 24135m 3.2m/s 2.3m/s
03:00 ☾
77% 9.3°C 0mm 84% 0cm -17° 12°C 0mm 0.22kPa 24135m 2.2m/s 2.2m/s
04:00 ☾
82% 9.9°C 0mm 81% 0cm -13° 13°C 0mm 0.29kPa 24135m 2m/s 1.9m/s
05:00 ☾
87% 11°C 0mm 77% 0cm -7.3° 15°C 0mm 0.38kPa 24135m 1.7m/s 1.7m/s
06:00 ☾
92% 11°C 0mm 74% 0cm -0.44° 16°C 0mm 0.48kPa 24135m 1.4m/s 1.5m/s
07:00
93% 11°C 0mm 73% 0cm 6.4° 16°C 0mm 0.49kPa 24135m 1.3m/s 1.3m/s
08:00
93% 11°C 0mm 73% 0cm 14° 16°C 0mm 0.5kPa 24135m 1.1m/s 1.2m/s
09:00
94% 11°C 0mm 73% 0cm 21° 16°C 0mm 0.51kPa 24135m 0.99m/s 1m/s
10:00
95% 12°C 0.003mm 73% 0cm 28° 16°C 0mm 0.51kPa 24135m 1.4m/s 1.4m/s
11:00
96% 12°C 0.007mm 72% 0cm 34° 17°C 0mm 0.52kPa 24135m 1.8m/s 1.8m/s
12:00
97% 12°C 0.01mm 72% 0cm 38° 17°C 0mm 0.53kPa 24135m 2.2m/s 2.2m/s
13:00
98% 12°C 0.007mm 73% 0cm 40° 17°C 0mm 0.51kPa 24135m 2.2m/s 2.2m/s
14:00
98% 12°C 0.003mm 74% 0cm 40° 17°C 0mm 0.5kPa 24135m 2.2m/s 2.1m/s
15:00
99% 12°C 0mm 74% 0cm 37° 17°C 0mm 0.49kPa 24135m 2.1m/s 2.1m/s
16:00
94% 12°C 0mm 74% 0cm 32° 17°C 0mm 0.49kPa 24135m 2.1m/s 2.1m/s
17:00
90% 12°C 0mm 74% 0cm 26° 17°C 0mm 0.5kPa 24135m 2.1m/s 2m/s
18:00
85% 12°C 0mm 74% 0cm 19° 17°C 0mm 0.5kPa 24135m 2m/s 2m/s
19:00
82% 12°C 0mm 74% 0cm 12° 17°C 0mm 0.5kPa 24135m 2.2m/s 2.2m/s
20:00
80% 12°C 0mm 74% 0cm 4.4° 17°C 0mm 0.5kPa 24135m 2.4m/s 2.3m/s
21:00 ☾
77% 12°C 0mm 74% 0cm -2.7° 17°C 0mm 0.5kPa 24135m 2.5m/s 2.5m/s
22:00 ☾
71% 12°C 0mm 75% 0cm -9° 17°C 0mm 0.47kPa 24135m 2.6m/s 2.6m/s
How to read: these inputs help produce the derived score; they are not requirements by themselves.

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.

How opportunities work → Weather data sources →
Forecast generated

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