Rule
Fog Hunter
Teijo - Fog Hunter - Southern Finland
Matildedal, Southwest Finland, Finland
Thick, moody fog for atmospheric forest and landscape shots
No opportunities right now
Here’s what usually blocks matches
No Fog Hunter opportunities in the next 14 days
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Rule requirements (key thresholds)
Fog Probability · ≥ 85.0% Dewpoint Spread · ≤ 2.0°C Visibility · ≤ 3000.0m Wind Speed · ≤ 2.0m/s
Tip: Scroll down to the 72-hour table to see exactly which condition fails hour by hour.
Most common blockers (next 72 hours)
Visibility 100% failing
Wind Speed 100% failing
Fog Probability 97% failing
Upcoming Opportunities
When all conditions match, PhotoWeather marks an opportunity window.
Times shown in Europe/Helsinki
No opportunities in the next 14 days
See the blocker timeline below to understand which conditions are preventing matches.
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 72 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 |
|---|---|---|---|---|
| Sat, Jan 10 | ||||
| 21:00 | 0% | 4.3°C | 21380m | 6.2m/s |
| 22:00 | 0% | 4.8°C | 33920m | 6.1m/s |
| 23:00 | 0% | 5.2°C | 61100m | 6.1m/s |
| Sun, Jan 11 | ||||
| 24:00 | 0% | 5°C | 56700m | 6.1m/s |
| 01:00 | 0% | 4.7°C | 24740m | 6.2m/s |
| 02:00 | 0% | 4.7°C | 23820m | 6.5m/s |
| 03:00 | 0% | 4.5°C | 27660m | 6.7m/s |
| 04:00 | 0% | 4.2°C | 22280m | 6.6m/s |
| 05:00 | 0% | 3.8°C | 18560m | 6.3m/s |
| 06:00 | 0% | 3.5°C | 13460m | 6.2m/s |
| 07:00 | 0% | 3.3°C | 11180m | 6.2m/s |
| 08:00 | 0% | 3.2°C | 8800m | 6m/s |
| 09:00 | 0% | 2.9°C | 10000m | 5.4m/s |
| 10:00 | 0% | 3°C | 15460m | 5.2m/s |
| 11:00 | 0% | 3.2°C | 16040m | 4.9m/s |
| 12:00 | 0% | 3.3°C | 15080m | 4.7m/s |
| 13:00 | 0% | 3.7°C | 10660m | 4.8m/s |
| 14:00 | 0% | 3.7°C | 7860m | 4.8m/s |
| 15:00 | 0% | 3.5°C | 8280m | 4.6m/s |
| 16:00 | 0% | 3.3°C | 7760m | 4.6m/s |
| 17:00 | 0% | 3.2°C | 8360m | 4.6m/s |
| 18:00 | 0% | 3.2°C | 10380m | 4.4m/s |
| 19:00 | 0% | 3°C | 11980m | 4.3m/s |
| 20:00 | 0% | 3°C | 18780m | 4.4m/s |
| 21:00 | 0% | 3°C | 54460m | 4.4m/s |
| 22:00 | 0% | 3°C | 61000m | 4.3m/s |
| 23:00 | 0% | 3°C | 45520m | 4.2m/s |
| Mon, Jan 12 | ||||
| 24:00 | 0% | 3°C | 27000m | 4.1m/s |
| 01:00 | 0% | 3.3°C | 31260m | 3.9m/s |
| 02:00 | 0% | 3.3°C | 41220m | 3.7m/s |
| 03:00 | 0% | 3.1°C | 43260m | 3.5m/s |
| 04:00 | 0% | 3°C | 25680m | 3.3m/s |
| 05:00 | 0% | 2.6°C | 20300m | 3.2m/s |
| 06:00 | 0% | 2.3°C | 38380m | 3m/s |
| 07:00 | 0% | 2.2°C | 56340m | 3m/s |
| 08:00 | 0% | 2°C | 56380m | 3.1m/s |
| 09:00 | 0% | 2°C | 56380m | 3m/s |
| 10:00 | 0% | 2.2°C | 56380m | 2.8m/s |
| 11:00 | 0% | 2.5°C | 56380m | 3.1m/s |
| 12:00 | 0% | 3.1°C | 61140m | 2.9m/s |
| 13:00 | 0% | 3.1°C | 64180m | 2.9m/s |
| 14:00 | 0% | 3°C | 59120m | 2.7m/s |
| 15:00 | 0% | 2.4°C | 61120m | 2.7m/s |
| 16:00 | 0% | 1.9°C | 49400m | 3.1m/s |
| 17:00 | 0% | 2°C | 47660m | 3m/s |
| 18:00 | 0% | 1.5°C | 46660m | 2.8m/s |
| 19:00 | 0% | 1.1°C | 55880m | 3m/s |
| 20:00 | 67% | 0.4°C | 54760m | 3.2m/s |
| 21:00 | 67% | 0.5°C | 45760m | 3.4m/s |
| 22:00 | 60% | 0.9°C | 34740m | 3.5m/s |
| 23:00 | 0% | 1.6°C | 24300m | 3.8m/s |
| Tue, Jan 13 | ||||
| 24:00 | 0% | 1.9°C | 17820m | 3.8m/s |
| 01:00 | 0% | 1.8°C | 14300m | 3.7m/s |
| 02:00 | 0% | 1.4°C | 8080m | 3.5m/s |
| 03:00 | 76% | 0.9°C | 5980m | 3.5m/s |
| 04:00 | 76% | 0.8°C | 5720m | 3.6m/s |
| 05:00 | 81% | 0.7°C | 5880m | 3.6m/s |
| 06:00 | 81% | 0.7°C | 6420m | 3.6m/s |
| 07:00 | 83% | 0.5°C | 6920m | 3.7m/s |
| 08:00 | 83% | 0.4°C | 7100m | 3.6m/s |
| 09:00 | 86% | 0.1°C | 7860m | 3.5m/s |
| 10:00 | 86% | 0°C | 7880m | 3.3m/s |
| 11:00 | 78% | 0.3°C | 12060m | 3.5m/s |
| 12:00 | 72% | 0.7°C | 13780m | 3.4m/s |
| 13:00 | 60% | 0.9°C | 16260m | 3.2m/s |
| 14:00 | 0% | 1.1°C | 11540m | 3.1m/s |
| 15:00 | 0% | 1.1°C | 10760m | 2.7m/s |
| 16:00 | 0% | 1.1°C | 8140m | 3m/s |
| 17:00 | 0% | 1.2°C | 9060m | 2.9m/s |
| 18:00 | 0% | 1.5°C | 7640m | 2.6m/s |
| 19:00 | 0% | 1.5°C | 5100m | 2.5m/s |
| 20:00 | 0% | 1.2°C | 5580m | 2.3m/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 |
|---|---|---|---|---|---|---|---|---|
| Sat, Jan 10
Sunrise 09:25
Sunset 15:46 | ||||||||
| 22:00 ☾ | -13°C | 0mm | 68% | 0cm | -8.3°C | 0mm | 0.1kPa | 12m/s |
| 23:00 ☾ | -13°C | 0mm | 66% | 0cm | -8.2°C | 0mm | 0.11kPa | 12m/s |
| Sun, Jan 11
Sunrise 09:25
Sunset 15:46 | ||||||||
| 24:00 ☾ | -13°C | 0mm | 67% | 0cm | -8°C | 0mm | 0.11kPa | 12m/s |
| 01:00 ☾ | -13°C | 0mm | 69% | 0cm | -7.9°C | 0mm | 0.1kPa | 12m/s |
| 02:00 ☾ | -12°C | 0mm | 69% | 0cm | -7.8°C | 0mm | 0.11kPa | 13m/s |
| 03:00 ☾ | -12°C | 0mm | 70% | 0cm | -7.6°C | 0mm | 0.1kPa | 13m/s |
| 04:00 ☾ | -12°C | 0mm | 72% | 0cm | -7.6°C | 0mm | 0.1kPa | 13m/s |
| 05:00 ☾ | -11°C | 0mm | 74% | 0cm | -7.6°C | 0mm | 0.09kPa | 13m/s |
| 06:00 ☾ | -11°C | 0mm | 76% | 0.07cm | -7.6°C | 0.1mm | 0.08kPa | 13m/s |
| 07:00 ☾ | -11°C | 0mm | 77% | 0.07cm | -7.4°C | 0.1mm | 0.08kPa | 12m/s |
| 08:00 ☾ | -10°C | 0mm | 78% | 0.07cm | -7.3°C | 0.1mm | 0.08kPa | 12m/s |
| 09:00 ☾ | -10°C | 0mm | 80% | 0.14cm | -7.1°C | 0.2mm | 0.07kPa | 12m/s |
| 10:00 | -10°C | 0mm | 79% | 0.14cm | -7.1°C | 0.2mm | 0.08kPa | 11m/s |
| 11:00 | -10°C | 0mm | 78% | 0.07cm | -7.2°C | 0.1mm | 0.08kPa | 10m/s |
| 12:00 | -11°C | 0mm | 77% | 0.07cm | -7.4°C | 0.1mm | 0.08kPa | 9.8m/s |
| 13:00 | -11°C | 0mm | 75% | 0.07cm | -7.5°C | 0.1mm | 0.09kPa | 9.8m/s |
| 14:00 | -11°C | 0mm | 75% | 0.07cm | -7.5°C | 0.1mm | 0.09kPa | 9.8m/s |
| 15:00 | -11°C | 0mm | 76% | 0.07cm | -7.5°C | 0.1mm | 0.08kPa | 9.6m/s |
| 16:00 ☾ | -11°C | 0mm | 77% | 0.07cm | -7.4°C | 0.1mm | 0.08kPa | 9.4m/s |
| 17:00 ☾ | -11°C | 0mm | 78% | 0.07cm | -7.4°C | 0.1mm | 0.08kPa | 9.3m/s |
| 18:00 ☾ | -11°C | 0mm | 78% | 0.07cm | -7.5°C | 0.1mm | 0.08kPa | 9.2m/s |
| 19:00 ☾ | -10°C | 0mm | 79% | 0.07cm | -7.5°C | 0.1mm | 0.07kPa | 8.9m/s |
| 20:00 ☾ | -11°C | 0mm | 79% | 0cm | -7.6°C | 0mm | 0.07kPa | 8.7m/s |
| 21:00 ☾ | -11°C | 0mm | 79% | 0cm | -7.7°C | 0mm | 0.07kPa | 8.8m/s |
| 22:00 ☾ | -11°C | 0mm | 79% | 0cm | -7.7°C | 0mm | 0.07kPa | 8.8m/s |
| 23:00 ☾ | -11°C | 0mm | 79% | 0cm | -7.8°C | 0mm | 0.07kPa | 8.6m/s |
| Mon, Jan 12
Sunrise 09:24
Sunset 15:48 | ||||||||
| 24:00 ☾ | -11°C | 0mm | 79% | 0cm | -8°C | 0mm | 0.07kPa | 8.4m/s |
| 01:00 ☾ | -12°C | 0mm | 77% | 0cm | -8.3°C | 0mm | 0.08kPa | 8.3m/s |
| 02:00 ☾ | -12°C | 0mm | 77% | 0cm | -8.7°C | 0mm | 0.07kPa | 7.8m/s |
| 03:00 ☾ | -12°C | 0mm | 78% | 0cm | -9.2°C | 0mm | 0.07kPa | 7.3m/s |
| 04:00 ☾ | -12°C | 0mm | 79% | 0cm | -9.5°C | 0mm | 0.06kPa | 7m/s |
| 05:00 ☾ | -12°C | 0mm | 81% | 0cm | -9.9°C | 0mm | 0.05kPa | 6.6m/s |
| 06:00 ☾ | -13°C | 0mm | 83% | 0cm | -10°C | 0mm | 0.05kPa | 6.4m/s |
| 07:00 ☾ | -13°C | 0mm | 84% | 0cm | -11°C | 0mm | 0.04kPa | 6m/s |
| 08:00 ☾ | -13°C | 0mm | 85% | 0cm | -11°C | 0mm | 0.04kPa | 6.1m/s |
| 09:00 ☾ | -13°C | 0mm | 85% | 0cm | -11°C | 0mm | 0.04kPa | 6.1m/s |
| 10:00 | -13°C | 0mm | 84% | 0cm | -11°C | 0mm | 0.04kPa | 6m/s |
| 11:00 | -13°C | 0mm | 82% | 0cm | -10°C | 0mm | 0.05kPa | 6.3m/s |
| 12:00 | -13°C | 0mm | 78% | 0cm | -10°C | 0mm | 0.06kPa | 6.4m/s |
| 13:00 | -12°C | 0mm | 78% | 0cm | -9.1°C | 0mm | 0.07kPa | 6.3m/s |
| 14:00 | -12°C | 0mm | 79% | 0cm | -8.6°C | 0mm | 0.07kPa | 6.2m/s |
| 15:00 | -11°C | 0mm | 83% | 0cm | -8.8°C | 0mm | 0.05kPa | 5.6m/s |
| 16:00 ☾ | -11°C | 0mm | 86% | 0cm | -9.4°C | 0mm | 0.04kPa | 5.6m/s |
| 17:00 ☾ | -11°C | 0mm | 85% | 0cm | -9.5°C | 0mm | 0.04kPa | 5.8m/s |
| 18:00 ☾ | -11°C | 0mm | 89% | 0cm | -9.4°C | 0mm | 0.03kPa | 5.5m/s |
| 19:00 ☾ | -10°C | 0mm | 92% | 0cm | -9.4°C | 0mm | 0.02kPa | 5.5m/s |
| 20:00 ☾ | -10°C | 0mm | 97% | 0cm | -9.6°C | 0mm | 0.01kPa | 5.8m/s |
| 21:00 ☾ | -9.9°C | 0mm | 96% | 0cm | -9.4°C | 0mm | 0.01kPa | 6.1m/s |
| 22:00 ☾ | -9.7°C | 0mm | 93% | 0cm | -8.8°C | 0mm | 0.02kPa | 6.3m/s |
| 23:00 ☾ | -9.4°C | 0mm | 88% | 0cm | -7.8°C | 0mm | 0.04kPa | 7m/s |
| Tue, Jan 13
Sunrise 09:22
Sunset 15:51 | ||||||||
| 24:00 ☾ | -9°C | 0mm | 86% | 0cm | -7.1°C | 0mm | 0.05kPa | 7.5m/s |
| 01:00 ☾ | -8.6°C | 0mm | 87% | 0cm | -6.8°C | 0mm | 0.05kPa | 7.5m/s |
| 02:00 ☾ | -8.2°C | 0mm | 90% | 0cm | -6.8°C | 0mm | 0.04kPa | 7.3m/s |
| 03:00 ☾ | -7.9°C | 0mm | 93% | 0cm | -7°C | 0mm | 0.03kPa | 7m/s |
| 04:00 ☾ | -7.9°C | 0.1mm | 94% | 0cm | -7.1°C | 0.1mm | 0.02kPa | 7.1m/s |
| 05:00 ☾ | -7.9°C | 0mm | 95% | 0cm | -7.2°C | 0mm | 0.02kPa | 7.3m/s |
| 06:00 ☾ | -7.9°C | 0mm | 95% | 0cm | -7.2°C | 0mm | 0.02kPa | 7.2m/s |
| 07:00 ☾ | -7.6°C | 0mm | 96% | 0cm | -7.1°C | 0mm | 0.01kPa | 7.2m/s |
| 08:00 ☾ | -7.5°C | 0mm | 97% | 0cm | -7.1°C | 0mm | 0.01kPa | 7.2m/s |
| 09:00 ☾ | -7.2°C | 0mm | 99% | 0cm | -7.1°C | 0mm | 0kPa | 7.1m/s |
| 10:00 | -7.1°C | 0mm | 100% | 0cm | -7.1°C | 0mm | 0kPa | 6.9m/s |
| 11:00 | -7.1°C | 0mm | 98% | 0cm | -6.8°C | 0mm | 0.01kPa | 7.1m/s |
| 12:00 | -7.3°C | 0mm | 95% | 0cm | -6.6°C | 0mm | 0.02kPa | 7.2m/s |
| 13:00 | -7.5°C | 0mm | 93% | 0cm | -6.6°C | 0mm | 0.03kPa | 6.9m/s |
| 14:00 | -7.7°C | 0mm | 92% | 0cm | -6.6°C | 0mm | 0.03kPa | 6.7m/s |
| 15:00 | -7.8°C | 0mm | 92% | 0cm | -6.7°C | 0mm | 0.03kPa | 6.4m/s |
| 16:00 ☾ | -8°C | 0mm | 92% | 0cm | -6.9°C | 0mm | 0.03kPa | 5.8m/s |
| 17:00 ☾ | -8.1°C | 0mm | 91% | 0cm | -6.9°C | 0mm | 0.03kPa | 5.8m/s |
| 18:00 ☾ | -8.5°C | 0mm | 89% | 0cm | -7°C | 0mm | 0.04kPa | 5.7m/s |
| 19:00 ☾ | -8.6°C | 0mm | 89% | 0cm | -7.1°C | 0mm | 0.04kPa | 5.1m/s |
| 20:00 ☾ | -8.5°C | 0mm | 91% | 0cm | -7.3°C | 0mm | 0.03kPa | 4.9m/s |
| 21:00 ☾ | -8.5°C | 0mm | 92% | 0cm | -7.4°C | 0mm | 0.03kPa | 4.6m/s |
How to read: these inputs help produce the derived score; they are not requirements by themselves.
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