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Rule Fog Hunter

Liesjärvi - Fog Hunter - Southern Finland

Liesjärven Kansallispuisto, Kanta-Häme, Finland

Thick, moody fog for atmospheric forest and landscape shots

Currently

Real-time conditions
Fog Probability
51%
Dewpoint Spread0.9°C
Visibility24134 (Clear)
Relative Humidity94%
Wind Speed3.3m/s (calm conditions)

Upcoming Opportunities

When all conditions match, PhotoWeather marks an opportunity window.

Times shown in Europe/Helsinki
fog weather icon
Next opportunity
Dense Fog
Liesjärvi
Today · 16:00–17:00 · 1h window
High confidence
80%
🌫️Fog Probability100%
Dewpoint Spread: 0.1°C
Visibility: 767 (Fog)
Relative Humidity: 99%
Wind Speed: 2.5m/s (calm conditions)
fog weather icon
Dense Fog at Sunset
Liesjärvi
Today · 17:00–19:00
🌫️Fog Probability:100%
High
fog weather icon
Dense Fog
Liesjärvi
Today · 19:00–22:00
🌫️Fog Probability:100%
High
fog weather icon
Dense Fog
Liesjärvi
Tomorrow · 03:00–06:00
🌫️Fog Probability:72.7-100%
High
fog weather icon
Dense Fog at Dawn
Liesjärvi
Sun, Mar 15 · 05:00–06:00
🌫️Fog Probability:100%
Medium
fog weather icon
Dense Fog
Liesjärvi
Sun, Mar 15 · 23:00–24:00
🌫️Fog Probability:99.2%
Medium
fog weather icon
Dense Fog
Liesjärvi
Tue, Mar 17 · 10:00–17:00
🌫️Fog Probability:67.2-100%
Medium
+1 more windows in the next 10 days

What this forecast looks for

Plain-language explanation from the rule

Southern 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 hour
9matching hours in the next 92 hoursJump to next match
AND logic: all conditions required
Meets requirement
Misses requirement
Time
Europe/Helsinki
Fog Probability
≥ 60.0%
Tue, Mar 10
06:00-
07:00-
08:00-
09:00-
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, Mar 11
24:000%
01:000%
02:0051%
03:0051%
04:0051%
05:0051%
06:0054%
07:0054%
08:0054%
09:0054%
10:0053%
11:0053%
12:0043%
13:0051%
14:0053%
15:0053%
16:00100%
17:00100%
18:00100%
19:00100%
20:00100%
21:00100%
22:0035%
23:0050%
Thu, Mar 12
24:0050%
01:0051%
02:0051%
03:00100%
04:00100%
05:0073%
06:0036%
07:0035%
08:000%
09:0035%
10:0031%
11:0031%
12:0028%
13:000%
14:000%
15:000%
16:000%
17:000%
18:000%
19:000%
20:000%
21:000%
22:000%
23:000%
Fri, Mar 13
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%
23:0036%
Sat, Mar 14
24:0036%
01:0036%
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
Dew Point
°C
Rainfall
mm
Relative Humidity
%
Snowfall
cm
Temperature
°C
Total Precipitation
mm
Vapor Pressure Deficit
kPa
Visibility
m
Wind Gusts
m/s
Wind Speed
m/s
Wed, Mar 11 Sunrise 06:54 Sunset 18:15
03:00 ☾
-1°C 0mm 94% 0cm -0.1°C 0mm 0.04kPa 24134m 11m/s 3.3m/s
04:00 ☾
-0.9°C 0mm 94% 0cm -0.1°C 0mm 0.04kPa 24135m 11m/s 3.2m/s
05:00 ☾
-0.8°C 0mm 94% 0cm -0.02°C 0mm 0.03kPa 24135m 10m/s 3.1m/s
06:00 ☾
-0.8°C 0mm 95% 0cm -0.11°C 0mm 0.03kPa 24135m 9.8m/s 3m/s
07:00
-0.8°C 0mm 96% 0cm -0.17°C 0mm 0.03kPa 24134m 9.7m/s 3m/s
08:00
-0.2°C 0mm 96% 0cm 0.31°C 0mm 0.02kPa 24134m 10m/s 3m/s
09:00
0.8°C 0mm 95% 0cm 1.5°C 0mm 0.03kPa 24135m 9.6m/s 2.9m/s
10:00
1.8°C 0mm 94% 0cm 2.6°C 0mm 0.04kPa 24135m 7.8m/s 3.1m/s
11:00
2.4°C 0mm 94% 0cm 3.4°C 0mm 0.05kPa 24135m 6.8m/s 3m/s
12:00
2.5°C 0mm 96% 0cm 3°C 0mm 0.03kPa 24135m 7.3m/s 2.2m/s
13:00
2.9°C 0mm 96% 0cm 3.5°C 0mm 0.03kPa 24135m 7.6m/s 2.7m/s
14:00
2.9°C 0mm 94% 0cm 3.8°C 0mm 0.05kPa 24135m 7.6m/s 3.2m/s
15:00
2.5°C 0mm 93% 0cm 3.5°C 0mm 0.05kPa 24135m 8m/s 3.4m/s
16:00
2.7°C 0mm 99% 0cm 2.8°C 0mm 0.01kPa 767m 8.8m/s 2.5m/s
17:00
2.3°C 0mm 98% 0cm 2.5°C 0mm 0.01kPa 499m 8.4m/s 3m/s
18:00
1.8°C 0mm 98% 0cm 2°C 0mm 0.01kPa 196m 7.8m/s 3.1m/s
19:00 ☾
1.2°C 0.01mm 98% 0cm 1.4°C 0mm 0.01kPa 130m 8.7m/s 3.1m/s
20:00 ☾
1.3°C 0.04mm 98% 0cm 1.5°C 0.06mm 0.01kPa 176m 11m/s 3.3m/s
21:00 ☾
1.8°C 0.04mm 98% 0cm 2°C 0.06mm 0.01kPa 169m 12m/s 3.5m/s
22:00 ☾
2.2°C 0.3mm 98% 0cm 2.5°C 0.25mm 0.02kPa 832m 14m/s 4.3m/s
23:00 ☾
2.1°C 0mm 98% 0cm 2.4°C 0.31mm 0.02kPa 391m 12m/s 3.9m/s
Thu, Mar 12 Sunrise 06:54 Sunset 18:15
24:00 ☾
1.9°C 0mm 98% 0cm 2.2°C 0.31mm 0.02kPa 162m 12m/s 4m/s
01:00 ☾
1.7°C 0mm 98% 0cm 1.9°C 0.31mm 0.01kPa 125m 12m/s 3.3m/s
02:00 ☾
1.7°C 0mm 98% 0cm 1.9°C 0.31mm 0.01kPa 101m 11m/s 3.4m/s
03:00 ☾
1.7°C 0mm 98% 0cm 2°C 0mm 0.01kPa 81m 12m/s 3.6m/s
04:00 ☾
1.8°C 0mm 98% 0cm 2.1°C 0mm 0.01kPa 71m 12m/s 3.8m/s
05:00 ☾
1.9°C 0mm 98% 0cm 2.2°C 0mm 0.02kPa 64m 14m/s 4.3m/s
06:00 ☾
2.1°C 0.24mm 98% 0cm 2.4°C 0.06mm 0.02kPa 85m 14m/s 4.4m/s
07:00
2.3°C 0.87mm 98% 0cm 2.6°C 0.44mm 0.02kPa 160m 14m/s 4.4m/s
08:00
2.5°C 0.6mm 98% 0cm 2.8°C 1.4mm 0.02kPa 441m 13m/s 4.5m/s
09:00
2.5°C 0.03mm 98% 0cm 2.8°C 0.31mm 0.02kPa 284m 13m/s 4.5m/s
10:00
2.4°C 0.1mm 98% 0cm 2.7°C 0.31mm 0.02kPa 135m 13m/s 4.2m/s
11:00
2.3°C 0mm 98% 0cm 2.6°C 0.38mm 0.02kPa 133m 12m/s 4m/s
12:00
2.7°C 0mm 97% 0cm 3.1°C 0.38mm 0.02kPa 375m 12m/s 4.3m/s
13:00
2.3°C 0mm 92% 0cm 3.5°C 0.38mm 0.07kPa 24134m 12m/s 4.5m/s
14:00
1.1°C 0mm 84% 0cm 3.6°C 0.38mm 0.13kPa 24134m 11m/s 5.4m/s
15:00
1.2°C 0mm 83% 0cm 3.9°C 0mm 0.14kPa 24134m 12m/s 4.6m/s
16:00
1.7°C 0mm 83% 0cm 4.3°C 0mm 0.14kPa 24135m 12m/s 5m/s
17:00
1.2°C 0mm 84% 0cm 3.6°C 0mm 0.12kPa 24134m 12m/s 4.7m/s
18:00
0.4°C 0mm 86% 0cm 2.5°C 0mm 0.1kPa 24135m 13m/s 4.4m/s
19:00 ☾
-0.2°C 0mm 87% 0cm 1.7°C 0mm 0.09kPa 24135m 15m/s 4.6m/s
20:00 ☾
-0.4°C 0mm 90% 0cm 1.1°C 0mm 0.07kPa 24134m 15m/s 4.7m/s
21:00 ☾
-0.2°C 0mm 91% 0cm 1.1°C 0mm 0.06kPa 24134m 15m/s 4.8m/s
22:00 ☾
-0.3°C 0mm 90% 0cm 1.2°C 0mm 0.07kPa 24134m 16m/s 5.1m/s
23:00 ☾
-0.1°C 0mm 89% 0cm 1.6°C 0mm 0.08kPa 24134m 17m/s 5.5m/s
Fri, Mar 13 Sunrise 06:51 Sunset 18:18
24:00 ☾
0°C 0mm 88% 0cm 1.9°C 0mm 0.09kPa 24134m 17m/s 5.8m/s
01:00 ☾
-0.1°C 0mm 89% 0cm 1.5°C 0mm 0.07kPa 24134m 18m/s 6m/s
02:00 ☾
-0.3°C 0mm 90% 0cm 1.2°C 0mm 0.07kPa 24135m 19m/s 6.4m/s
03:00 ☾
-0.4°C 0mm 87% 0cm 1.5°C 0mm 0.09kPa 24134m 19m/s 6.4m/s
04:00 ☾
0.1°C 0mm 87% 0cm 1.9°C 0mm 0.09kPa 24134m 18m/s 6.5m/s
05:00 ☾
0.4°C 0mm 87% 0cm 2.3°C 0mm 0.09kPa 24134m 18m/s 6.6m/s
06:00 ☾
0.2°C 0mm 87% 0cm 2.2°C 0mm 0.09kPa 24134m 19m/s 6.9m/s
07:00
0.1°C 0mm 85% 0cm 2.4°C 0mm 0.11kPa 24135m 18m/s 6.7m/s
08:00
0.4°C 0mm 84% 0cm 2.9°C 0mm 0.12kPa 24135m 19m/s 7m/s
09:00
0.6°C 0mm 80% 0cm 3.7°C 0mm 0.16kPa 24135m 19m/s 7.1m/s
10:00
0.7°C 0mm 76% 0cm 4.5°C 0mm 0.2kPa 24135m 19m/s 7.3m/s
11:00
0.8°C 0mm 73% 0cm 5.3°C 0mm 0.24kPa 24135m 19m/s 7.5m/s
12:00
0.8°C 0mm 73% 0cm 5.3°C 0mm 0.24kPa 24135m 19m/s 7.5m/s
13:00
0.8°C 0mm 72% 0cm 5.3°C 0mm 0.25kPa 24135m 19m/s 7.6m/s
14:00
0.7°C 0mm 72% 0cm 5.3°C 0mm 0.25kPa 24135m 19m/s 7.6m/s
15:00
0.9°C 0mm 73% 0cm 5.4°C 0mm 0.25kPa 24135m 19m/s 7.4m/s
16:00
1.1°C 0mm 73% 0cm 5.5°C 0mm 0.24kPa 24135m 19m/s 7.1m/s
17:00
1.2°C 0mm 74% 0cm 5.6°C 0mm 0.24kPa 24135m 18m/s 6.9m/s
18:00
2°C 0mm 78% 0cm 5.5°C 0mm 0.19kPa 24135m 18m/s 6.6m/s
19:00 ☾
2.7°C 0mm 83% 0cm 5.4°C 0mm 0.15kPa 24135m 18m/s 6.3m/s
20:00 ☾
3.4°C 0mm 88% 0cm 5.2°C 0mm 0.11kPa 24135m 18m/s 5.9m/s
21:00 ☾
3.5°C 0mm 90% 0cm 5.1°C 0mm 0.09kPa 24135m 17m/s 5.8m/s
22:00 ☾
3.6°C 0mm 92% 0cm 4.9°C 0mm 0.07kPa 24135m 17m/s 5.6m/s
23:00 ☾
3.7°C 0mm 94% 0cm 4.7°C 0mm 0.05kPa 24135m 17m/s 5.4m/s
Sat, Mar 14 Sunrise 06:48 Sunset 18:20
24:00 ☾
3.6°C 0mm 94% 0cm 4.6°C 0mm 0.05kPa 24135m 16m/s 5.2m/s
01:00 ☾
3.5°C 0mm 93% 0cm 4.5°C 0mm 0.06kPa 24135m 16m/s 5m/s
02:00 ☾
3.4°C 0mm 93% 0cm 4.4°C 0mm 0.06kPa 24135m 15m/s 4.7m/s
How to read: these inputs help produce the derived score; they are not requirements by themselves.

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