Rule
Fog Hunter
Nuuksio - Fog Hunter - Southern Finland
Uusimaa, Finland
Thick, moody fog for atmospheric forest and landscape shots
Currently
Real-time conditionsDewpoint Spread1.5°C
Visibility24134 (Clear)
Relative Humidity90%
Wind Speed4.8m/s (calm conditions)
Upcoming Opportunities
When all conditions match, PhotoWeather marks an opportunity window.
Times shown in Europe/Helsinki
Next opportunity
Dense Fog (lingering)
Nuuksio
Tue, Mar 10 · 20:00–24:00 · 4h window
High confidence
71%
🌫️Fog Probability94.4-100%
Dewpoint Spread: 0.4°C
Visibility: 1994 (Mist/Haze)
Relative Humidity: 97%
Wind Speed: 0.7m/s (calm conditions)
Dense Fog (lingering)
Nuuksio
Wed, Mar 11 · 14:00–15:00
🌫️Fog Probability:100%
Medium
Dense Fog (lingering)
Nuuksio
Wed, Mar 11 · 23:00–03:00
🌫️Fog Probability:100%
Medium
What this forecast looks for
Plain-language explanation from the ruleSouthern Finland's lake district and boreal forests create ideal conditions for fog photography. The region's 188,000 lakes, countless bogs, and mixed forests generate reliable morning mist from late summer through autumn.
What makes Southern Finland special for fog photography:
- Lake fog - Large lakes like Vesijärvi and Saimaa produce dramatic ground fog at dawn
- Bog mist - Torronsuo and other wetlands create ethereal low-lying fog over boardwalks
- Forest atmosphere - Nuuksio and Repovesi offer misty woodland scenes with cliff viewpoints
- Accessibility - Most locations within 2 hours of Helsinki
Peak fog season runs from August through October, with the strongest conditions occurring on calm, clear nights when temperatures drop near the dewpoint. Arrive before sunrise for the most dramatic mist.
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72-hour requirements breakdown
What passed or failed, hour by hour0matching hours in the next 95 hours
AND logic: all conditions required
Meets requirement
Misses requirement
Time Europe/Helsinki | Fog Probability ≥ 85.0% | Dewpoint Spread ≤ 2.0°C | Visibility ≤ 3000.0m | Wind Speed ≤ 2.0m/s |
|---|---|---|---|---|
| Wed, Mar 4 | ||||
| 03:00 | 0% | 1.5°C | 24134m | 4.3m/s |
| 04:00 | 0% | 1.6°C | 24134m | 4.2m/s |
| 05:00 | 0% | 1.9°C | 24135m | 4.3m/s |
| 06:00 | 0% | 2.1°C | 24134m | 4.2m/s |
| 07:00 | 0% | 2.1°C | 24134m | 4.3m/s |
| 08:00 | 0% | 3°C | 24134m | 4.9m/s |
| 09:00 | 0% | 3.1°C | 24135m | 5.2m/s |
| 10:00 | 0% | 3.6°C | 24135m | 5.3m/s |
| 11:00 | 0% | 3.8°C | 24134m | 4.8m/s |
| 12:00 | 0% | 3.7°C | 24135m | 4.6m/s |
| 13:00 | 0% | 4.2°C | 24134m | 5.1m/s |
| 14:00 | 0% | 4.4°C | 24134m | 5.4m/s |
| 15:00 | 0% | 3.2°C | 24134m | 6m/s |
| 16:00 | 0% | 4°C | 24134m | 6.5m/s |
| 17:00 | 0% | 3.4°C | 24135m | 6.9m/s |
| 18:00 | 0% | 2.3°C | 24135m | 7.2m/s |
| 19:00 | 0% | 2.7°C | 24135m | 7m/s |
| 20:00 | 0% | 2.9°C | 24135m | 6.7m/s |
| 21:00 | 0% | 2.5°C | 24135m | 6.6m/s |
| 22:00 | 0% | 2.5°C | 24134m | 6.5m/s |
| 23:00 | 0% | 2.6°C | 24134m | 6.2m/s |
| Thu, Mar 5 | ||||
| 24:00 | 0% | 2.2°C | 24135m | 5.8m/s |
| 01:00 | 0% | 1.9°C | 24135m | 5.5m/s |
| 02:00 | 0% | 1.8°C | 24134m | 5.3m/s |
| 03:00 | 0% | 1.6°C | 24135m | 5m/s |
| 04:00 | 0% | 1.5°C | 24134m | 4.8m/s |
| 05:00 | 0% | 1.8°C | 24134m | 4.4m/s |
| 06:00 | 0% | 1.6°C | 24134m | 3.6m/s |
| 07:00 | 60% | 1°C | 24135m | 2.6m/s |
| 08:00 | 60% | 0.9°C | 24134m | 2.9m/s |
| 09:00 | 0% | 1.3°C | 24135m | 3m/s |
| 10:00 | 0% | 1.8°C | 24135m | 3.3m/s |
| 11:00 | 0% | 2.4°C | 24134m | 3m/s |
| 12:00 | 0% | 2.7°C | 24134m | 3.4m/s |
| 13:00 | 0% | 2.9°C | 24134m | 3.8m/s |
| 14:00 | 0% | 2.9°C | 24135m | 3.2m/s |
| 15:00 | 0% | 2.4°C | 24134m | 2.9m/s |
| 16:00 | 0% | 2°C | 24134m | 2.6m/s |
| 17:00 | 0% | 1.1°C | 24134m | 1.9m/s |
| 18:00 | 64% | 0.7°C | 24135m | 1.9m/s |
| 19:00 | 64% | 0.6°C | 24135m | 1.6m/s |
| 20:00 | 67% | 0.5°C | 24135m | 1.2m/s |
| 21:00 | 67% | 0.4°C | 24134m | 0.72m/s |
| 22:00 | 67% | 0.2°C | 24134m | 0.17m/s |
| 23:00 | 69% | 0.2°C | 24134m | 0.7m/s |
| Fri, Mar 6 | ||||
| 24:00 | 69% | 0.3°C | 23854m | 0.72m/s |
| 01:00 | 69% | 0.2°C | 23866m | 0.87m/s |
| 02:00 | 69% | 0.2°C | 23957m | 1.1m/s |
| 03:00 | 69% | 0.2°C | 23636m | 1.1m/s |
| 04:00 | 69% | 0.2°C | 23507m | 1.2m/s |
| 05:00 | 69% | 0.2°C | 23449m | 1.2m/s |
| 06:00 | 69% | 0.2°C | 23500m | 1.3m/s |
| 07:00 | 69% | 0.1°C | 23594m | 1.4m/s |
| 08:00 | 67% | 0.4°C | 24135m | 1.7m/s |
| 09:00 | 0% | 1.7°C | 24134m | 1.9m/s |
| 10:00 | 0% | 2.7°C | 24135m | 2.4m/s |
| 11:00 | 0% | 3.3°C | 24134m | 2.7m/s |
| 12:00 | 0% | 3.6°C | 24134m | 3.2m/s |
| 13:00 | 0% | 3.3°C | 24135m | 3.5m/s |
| 14:00 | 0% | 2.8°C | 24134m | 3.5m/s |
| 15:00 | 0% | 2.4°C | 24134m | 3.5m/s |
| 16:00 | 0% | 2.4°C | 24135m | 3.7m/s |
| 17:00 | 0% | 2°C | 24134m | 3.7m/s |
| 18:00 | 0% | 1.4°C | 24134m | 3.5m/s |
| 19:00 | 0% | 1.1°C | 24134m | 3.3m/s |
| 20:00 | 51% | 1°C | 24135m | 3.2m/s |
| 21:00 | 51% | 0.9°C | 24135m | 3m/s |
| 22:00 | 51% | 0.8°C | 24134m | 3.3m/s |
| 23:00 | 51% | 0.7°C | 24134m | 3.5m/s |
| Sat, Mar 7 | ||||
| 24:00 | 51% | 0.9°C | 24134m | 3.4m/s |
| 01:00 | 0% | 1°C | 24135m | 3.4m/s |
| 02:00 | 51% | 0.9°C | 24135m | 3.4m/s |
| 03:00 | 0% | 1.6°C | 24135m | 3.8m/s |
| 04:00 | 0% | 2°C | 24135m | 4m/s |
| 05:00 | 0% | 2.4°C | 24134m | 4.2m/s |
| 06:00 | 0% | 1.9°C | 24135m | 3.1m/s |
| 07:00 | 0% | 1.6°C | 24134m | 2.9m/s |
| 08:00 | 0% | 1.8°C | 24135m | 2.8m/s |
| 09:00 | 0% | 1.8°C | 24135m | 2.4m/s |
| 10:00 | 0% | 1.8°C | 24135m | 1.9m/s |
| 11:00 | 0% | 1.8°C | 24135m | 1.5m/s |
| 12:00 | 0% | 1.6°C | 24135m | 1.4m/s |
| 13:00 | 0% | 1.3°C | 24135m | 1.2m/s |
| 14:00 | 0% | 1.1°C | 24135m | 1.1m/s |
| 15:00 | 0% | 1.1°C | 24135m | 1.1m/s |
| 16:00 | 0% | 1.1°C | 24135m | 1.2m/s |
| 17:00 | 0% | 1.1°C | 24135m | 1.2m/s |
| 18:00 | 0% | 1.1°C | 24135m | 1.3m/s |
| 19:00 | 60% | 1°C | 24135m | 1.3m/s |
| 20:00 | 0% | 1°C | 24135m | 1.3m/s |
| 21:00 | 0% | 1°C | 24135m | 1.5m/s |
| 22:00 | 0% | 1.2°C | 24135m | 1.7m/s |
| 23:00 | 0% | 1.2°C | 24135m | 1.9m/s |
| Sun, Mar 8 | ||||
| 24:00 | 0% | 1.6°C | 24135m | 2.2m/s |
| 01:00 | 0% | 2.1°C | 24135m | 2.4m/s |
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 scoreThis 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 | Dew Point °C | Rainfall mm | Relative Humidity % | Snowfall cm | Temperature °C | Total Precipitation mm | Vapor Pressure Deficit kPa | Wind Gusts m/s |
|---|---|---|---|---|---|---|---|---|
| Thu, Mar 5
Sunrise 07:09
Sunset 17:58 | ||||||||
| 04:00 ☾ | -0.8°C | 0mm | 90% | 0cm | 0.73°C | 0mm | 0.07kPa | 14m/s |
| 05:00 ☾ | -0.9°C | 0mm | 88% | 0cm | 0.88°C | 0mm | 0.08kPa | 12m/s |
| 06:00 ☾ | -1.1°C | 0mm | 89% | 0cm | 0.49°C | 0mm | 0.07kPa | 9.5m/s |
| 07:00 ☾ | -1.5°C | 0mm | 93% | 0cm | -0.54°C | 0mm | 0.04kPa | 6.4m/s |
| 08:00 | -1.3°C | 0mm | 94% | 0cm | -0.37°C | 0mm | 0.04kPa | 7.4m/s |
| 09:00 | -1.3°C | 0mm | 91% | 0cm | 0.02°C | 0mm | 0.06kPa | 8.1m/s |
| 10:00 | -1.1°C | 0mm | 88% | 0cm | 0.67°C | 0mm | 0.08kPa | 8m/s |
| 11:00 | -0.5°C | 0mm | 84% | 0cm | 1.9°C | 0mm | 0.11kPa | 6.7m/s |
| 12:00 | 0.1°C | 0mm | 83% | 0cm | 2.8°C | 0mm | 0.13kPa | 6.7m/s |
| 13:00 | 0.5°C | 0mm | 82% | 0cm | 3.4°C | 0mm | 0.14kPa | 7.6m/s |
| 14:00 | 0.8°C | 0mm | 82% | 0cm | 3.7°C | 0mm | 0.15kPa | 6.5m/s |
| 15:00 | 1.3°C | 0mm | 84% | 0cm | 3.7°C | 0mm | 0.13kPa | 6.8m/s |
| 16:00 | 1.2°C | 0mm | 87% | 0cm | 3.2°C | 0mm | 0.1kPa | 7m/s |
| 17:00 | 0.7°C | 0mm | 92% | 0cm | 1.8°C | 0mm | 0.05kPa | 5.2m/s |
| 18:00 ☾ | -0.7°C | 0mm | 95% | 0cm | 0.03°C | 0mm | 0.03kPa | 5.8m/s |
| 19:00 ☾ | -1°C | 0mm | 96% | 0cm | -0.38°C | 0mm | 0.03kPa | 4.4m/s |
| 20:00 ☾ | -1.6°C | 0mm | 97% | 0cm | -1.1°C | 0mm | 0.02kPa | 1.1m/s |
| 21:00 ☾ | -2°C | 0mm | 98% | 0cm | -1.6°C | 0mm | 0.01kPa | 0.71m/s |
| 22:00 ☾ | -2.4°C | 0mm | 98% | 0cm | -2.2°C | 0mm | 0.01kPa | 0.21m/s |
| 23:00 ☾ | -2.7°C | 0mm | 98% | 0cm | -2.5°C | 0mm | 0.01kPa | 0.7m/s |
| Fri, Mar 6
Sunrise 07:09
Sunset 17:58 | ||||||||
| 24:00 ☾ | -2.8°C | 0mm | 98% | 0cm | -2.5°C | 0mm | 0.01kPa | 0.71m/s |
| 01:00 ☾ | -2.7°C | 0mm | 98% | 0cm | -2.5°C | 0mm | 0.01kPa | 0.81m/s |
| 02:00 ☾ | -2.7°C | 0mm | 98% | 0cm | -2.5°C | 0mm | 0.01kPa | 1m/s |
| 03:00 ☾ | -2.9°C | 0mm | 98% | 0cm | -2.7°C | 0mm | 0.01kPa | 2.2m/s |
| 04:00 ☾ | -3°C | 0mm | 98% | 0cm | -2.8°C | 0mm | 0.01kPa | 2.3m/s |
| 05:00 ☾ | -3°C | 0mm | 98% | 0cm | -2.8°C | 0mm | 0.01kPa | 2.4m/s |
| 06:00 ☾ | -2.9°C | 0mm | 98% | 0cm | -2.7°C | 0mm | 0.01kPa | 2.5m/s |
| 07:00 ☾ | -2.8°C | 0mm | 99% | 0cm | -2.7°C | 0mm | 0.01kPa | 3.9m/s |
| 08:00 | -2.3°C | 0mm | 97% | 0cm | -1.9°C | 0mm | 0.02kPa | 6.1m/s |
| 09:00 | -1.5°C | 0mm | 88% | 0cm | 0.19°C | 0mm | 0.07kPa | 6.4m/s |
| 10:00 | -0.9°C | 0mm | 82% | 0cm | 1.8°C | 0mm | 0.12kPa | 6.8m/s |
| 11:00 | -0.3°C | 0mm | 79% | 0cm | 3°C | 0mm | 0.16kPa | 7.3m/s |
| 12:00 | 0°C | 0mm | 77% | 0cm | 3.6°C | 0mm | 0.18kPa | 8.5m/s |
| 13:00 | 0.5°C | 0mm | 79% | 0cm | 3.8°C | 0mm | 0.17kPa | 9.3m/s |
| 14:00 | 0.8°C | 0mm | 82% | 0cm | 3.6°C | 0mm | 0.14kPa | 9.3m/s |
| 15:00 | 0.9°C | 0mm | 84% | 0cm | 3.3°C | 0mm | 0.12kPa | 11m/s |
| 16:00 | 0.4°C | 0mm | 84% | 0cm | 2.8°C | 0mm | 0.12kPa | 12m/s |
| 17:00 | -0.1°C | 0mm | 87% | 0cm | 1.9°C | 0mm | 0.09kPa | 12m/s |
| 18:00 | -0.8°C | 0mm | 91% | 0cm | 0.6°C | 0mm | 0.06kPa | 11m/s |
| 19:00 ☾ | -1.1°C | 0mm | 92% | 0cm | -0.02°C | 0mm | 0.05kPa | 11m/s |
| 20:00 ☾ | -1.3°C | 0mm | 93% | 0cm | -0.33°C | 0mm | 0.04kPa | 11m/s |
| 21:00 ☾ | -1.3°C | 0mm | 94% | 0cm | -0.4°C | 0mm | 0.04kPa | 11m/s |
| 22:00 ☾ | -0.9°C | 0mm | 94% | 0cm | -0.08°C | 0mm | 0.03kPa | 12m/s |
| 23:00 ☾ | -0.4°C | 0mm | 95% | 0cm | 0.34°C | 0mm | 0.03kPa | 12m/s |
| Sat, Mar 7
Sunrise 07:06
Sunset 18:00 | ||||||||
| 24:00 ☾ | -0.6°C | 0mm | 94% | 0cm | 0.34°C | 0mm | 0.04kPa | 11m/s |
| 01:00 ☾ | -1.1°C | 0mm | 93% | 0cm | -0.08°C | 0mm | 0.04kPa | 10m/s |
| 02:00 ☾ | -1.5°C | 0mm | 94% | 0cm | -0.65°C | 0mm | 0.04kPa | 9m/s |
| 03:00 ☾ | -1.3°C | 0mm | 89% | 0cm | 0.3°C | 0mm | 0.07kPa | 8.6m/s |
| 04:00 ☾ | -0.9°C | 0mm | 87% | 0cm | 1.1°C | 0mm | 0.09kPa | 9.1m/s |
| 05:00 ☾ | -0.9°C | 0mm | 84% | 0cm | 1.5°C | 0mm | 0.11kPa | 9m/s |
| 06:00 ☾ | -0.7°C | 0mm | 87% | 0cm | 1.2°C | 0mm | 0.08kPa | 9.4m/s |
| 07:00 ☾ | -0.8°C | 0mm | 89% | 0cm | 0.82°C | 0mm | 0.07kPa | 10m/s |
| 08:00 | -1°C | 0mm | 88% | 0cm | 0.77°C | 0mm | 0.08kPa | 11m/s |
| 09:00 | -0.9°C | 0mm | 88% | 0cm | 0.89°C | 0mm | 0.08kPa | 7.6m/s |
| 10:00 | -0.8°C | 0mm | 88% | 0cm | 1°C | 0mm | 0.08kPa | 4.5m/s |
| 11:00 | -0.7°C | 0mm | 87% | 0cm | 1.1°C | 0mm | 0.08kPa | 1.4m/s |
| 12:00 | -1.6°C | 0mm | 89% | 0cm | -0.01°C | 0mm | 0.07kPa | 1.3m/s |
| 13:00 | -2.5°C | 0mm | 91% | 0cm | -1.2°C | 0mm | 0.05kPa | 1.2m/s |
| 14:00 | -3.4°C | 0mm | 92% | 0cm | -2.3°C | 0mm | 0.04kPa | 1.1m/s |
| 15:00 | -3.5°C | 0mm | 92% | 0cm | -2.4°C | 0mm | 0.04kPa | 1.1m/s |
| 16:00 | -3.6°C | 0mm | 92% | 0cm | -2.5°C | 0mm | 0.04kPa | 1.2m/s |
| 17:00 | -3.8°C | 0mm | 92% | 0cm | -2.7°C | 0mm | 0.04kPa | 1.2m/s |
| 18:00 | -3.8°C | 0mm | 92% | 0cm | -2.7°C | 0mm | 0.04kPa | 1.8m/s |
| 19:00 ☾ | -3.8°C | 0mm | 93% | 0cm | -2.8°C | 0mm | 0.04kPa | 2.3m/s |
| 20:00 ☾ | -3.9°C | 0mm | 93% | 0cm | -2.9°C | 0mm | 0.04kPa | 2.9m/s |
| 21:00 ☾ | -3.9°C | 0mm | 92% | 0cm | -2.9°C | 0mm | 0.04kPa | 4.2m/s |
| 22:00 ☾ | -4°C | 0mm | 92% | 0cm | -2.8°C | 0mm | 0.04kPa | 5.6m/s |
| 23:00 ☾ | -4°C | 0mm | 91% | 0cm | -2.8°C | 0mm | 0.04kPa | 6.9m/s |
| Sun, Mar 8
Sunrise 07:03
Sunset 18:03 | ||||||||
| 24:00 ☾ | -4.2°C | 0mm | 89% | 0cm | -2.6°C | 0mm | 0.06kPa | 8m/s |
| 01:00 ☾ | -4.4°C | 0mm | 86% | 0cm | -2.3°C | 0mm | 0.07kPa | 9.2m/s |
| 02:00 ☾ | -4.6°C | 0mm | 83% | 0cm | -2.1°C | 0mm | 0.09kPa | 10m/s |
| 03:00 ☾ | -4.2°C | 0mm | 79% | 0cm | -1°C | 0mm | 0.12kPa | 10m/s |
How to read: these inputs help produce the derived score; they are not requirements by themselves.
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