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Rule Fog Hunter

Nuuksio - Fog Hunter - Southern Finland

Uusimaa, Finland

Thick, moody fog for atmospheric forest and landscape shots

Currently

Real-time conditions
Fog Probability
0%
Dewpoint Spread5.7°C
Visibility24135 (Clear)
Relative Humidity68%
Wind Speed4.8m/s (calm conditions)

Upcoming Opportunities

When all conditions match, PhotoWeather marks an opportunity window.

Times shown in Europe/Helsinki
fog weather icon
Next opportunity
Moderate Fog
Nuuksio
Today · 23:00–01:00 · 2h window
Low confidence
34%
🌫️Fog Probability61.1-62.5%
Dewpoint Spread: 0.1°C
Visibility: 24 (Dense fog)
Relative Humidity: 99%
Wind Speed: 2.5m/s (calm conditions)
fog weather icon
Dense Fog
Nuuksio
Tomorrow · 03:00–05:00
🌫️Fog Probability:100%
High
fog weather icon
Dense Fog at Dawn
Nuuksio
Tomorrow · 05:00–06:00
🌫️Fog Probability:100%
High
fog weather icon
Dense Fog at Sunset
Nuuksio
Tomorrow · 17:00–19:00
🌫️Fog Probability:100%
High
fog weather icon
Dense Fog at Dusk
Nuuksio
Tomorrow · 19:00–20:00
🌫️Fog Probability:100%
High
fog weather icon
Dense Fog
Nuuksio
Tomorrow · 20:00–05:00
🌫️Fog Probability:62.5-100%
Medium
fog weather icon
Dense Fog at Dawn
Nuuksio
Tue, Mar 17 · 05:00–06:00
🌫️Fog Probability:100%
High
+5 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
23matching hours in the next 80 hoursJump to next match
AND logic: all conditions required
Meets requirement
Misses requirement
Time
Europe/Helsinki
Fog Probability
≥ 60.0%
Sun, Mar 15
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%
22:0029%
23:0061%
Mon, Mar 16
24:0063%
01:000%
02:000%
03:00100%
04:00100%
05:00100%
06:000%
07:000%
08:000%
09:000%
10:000%
11:000%
12:000%
13:000%
14:000%
15:000%
16:000%
17:00100%
18:00100%
19:00100%
20:0063%
21:00100%
22:00100%
23:0063%
Tue, Mar 17
24:0063%
01:0063%
02:0063%
03:00100%
04:00100%
05:00100%
06:0075%
07:0067%
08:0064%
09:000%
10:000%
11:0088%
12:0091%
13:0054%
14:000%
15:000%
16:000%
17:000%
18:000%
19:000%
20:000%
21:000%
22:000%
23:0051%
Wed, Mar 18
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%
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
Sun, Mar 15 Sunrise 06:39 Sunset 18:23
15:00
1.9°C 0mm 68% 0cm 7.6°C 0mm 0.34kPa 24135m 11m/s 4.8m/s
16:00
1.8°C 0mm 68% 0cm 7.4°C 0mm 0.33kPa 24135m 11m/s 5m/s
17:00
1.6°C 0mm 71% 0cm 6.4°C 0mm 0.28kPa 24135m 12m/s 5m/s
18:00
1.5°C 0mm 73% 0cm 6°C 0mm 0.25kPa 24134m 13m/s 5.1m/s
19:00 ☾
1.7°C 0mm 75% 0cm 5.9°C 0mm 0.23kPa 24134m 13m/s 5m/s
20:00 ☾
2°C 0.29mm 81% 0cm 5°C 0.06mm 0.17kPa 23600m 12m/s 5.2m/s
21:00 ☾
2°C 0.21mm 90% 0cm 3.6°C 0.38mm 0.08kPa 24134m 13m/s 4.3m/s
22:00 ☾
1.9°C 0.38mm 94% 0cm 2.8°C 0.75mm 0.05kPa 1211m 11m/s 4.2m/s
23:00 ☾
1.6°C 0.03mm 98% 0cm 1.9°C 0.88mm 0.02kPa 27m 6.7m/s 2.8m/s
Mon, Mar 16 Sunrise 06:39 Sunset 18:23
24:00 ☾
2.1°C 0.05mm 99% 0.06cm 2.2°C 0.94mm 0.01kPa 24m 6.5m/s 2.5m/s
01:00 ☾
1.9°C 0.06mm 99% 0cm 2.1°C 1mm 0.01kPa 23m 5.9m/s 2.4m/s
02:00 ☾
1.8°C 0.08mm 99% 0.08cm 2°C 1.1mm 0.01kPa 23m 5.4m/s 2.1m/s
03:00 ☾
1.8°C 0.05mm 99% 0cm 1.9°C 0.06mm 0.01kPa 24m 5.5m/s 1.8m/s
04:00 ☾
1.7°C 0mm 99% 0cm 1.9°C 0.13mm 0.01kPa 30m 5.5m/s 1.9m/s
05:00 ☾
1.3°C 0mm 97% 0cm 1.8°C 0.13mm 0.02kPa 92m 6.4m/s 2.3m/s
06:00 ☾
0.4°C 0mm 90% 0cm 1.9°C 0.13mm 0.07kPa 23183m 6.4m/s 3m/s
07:00
0.4°C 0mm 89% 0cm 2.1°C 0.13mm 0.08kPa 24134m 6m/s 2.7m/s
08:00
0.6°C 0mm 90% 0cm 2.1°C 0.13mm 0.07kPa 24135m 5.8m/s 2.4m/s
09:00
0.7°C 0mm 88% 0cm 2.5°C 0mm 0.09kPa 24134m 5.6m/s 2.5m/s
10:00
0.5°C 0mm 85% 0cm 2.8°C 0mm 0.11kPa 24134m 5.3m/s 3m/s
11:00
0.5°C 0mm 84% 0cm 3°C 0mm 0.12kPa 24135m 5m/s 3m/s
12:00
0.3°C 0mm 82% 0cm 3.1°C 0mm 0.14kPa 24135m 4.4m/s 2.9m/s
13:00
0.3°C 0mm 81% 0cm 3.3°C 0mm 0.15kPa 24134m 4.1m/s 2.9m/s
14:00
0.1°C 0mm 80% 0cm 3.2°C 0mm 0.15kPa 24134m 4.1m/s 2.8m/s
15:00
0.6°C 0mm 84% 0cm 3.1°C 0mm 0.13kPa 24134m 4.3m/s 2.5m/s
16:00
0.8°C 0mm 86% 0cm 2.9°C 0mm 0.11kPa 24135m 3.7m/s 2.1m/s
17:00
1.5°C 0mm 95% 0cm 2.2°C 0mm 0.04kPa 141m 3.4m/s 1.9m/s
18:00
1.8°C 0.11mm 99% 0.11cm 2°C 0.06mm 0.01kPa 32m 4m/s 1.8m/s
19:00 ☾
1.4°C 0.12mm 99% 0.12cm 1.5°C 0.19mm 0.01kPa 23m 4.5m/s 2.1m/s
20:00 ☾
1.3°C 0.07mm 99% 0.07cm 1.4°C 0.25mm 0.01kPa 21m 3.9m/s 1.9m/s
21:00 ☾
1.2°C 0.1mm 99% 0.1cm 1.3°C 0.06mm 0kPa 22m 2.9m/s 1.5m/s
22:00 ☾
1.2°C 0.1mm 99% 0.1cm 1.3°C 0.19mm 0kPa 22m 2.4m/s 1.3m/s
23:00 ☾
1.3°C 0.01mm 100% 0cm 1.3°C 0.25mm 0kPa 24m 2.3m/s 1.2m/s
Tue, Mar 17 Sunrise 06:36 Sunset 18:25
24:00 ☾
1.3°C 0.01mm 99% 0cm 1.4°C 0.25mm 0kPa 31m 2.9m/s 1.3m/s
01:00 ☾
1°C 0mm 98% 0cm 1.3°C 0.25mm 0.01kPa 52m 3.9m/s 1.3m/s
02:00 ☾
1°C 0mm 98% 0cm 1.3°C 0.25mm 0.01kPa 79m 3.8m/s 1.4m/s
03:00 ☾
0.9°C 0mm 98% 0cm 1.2°C 0mm 0.01kPa 110m 3.9m/s 1.6m/s
04:00 ☾
0.7°C 0mm 98% 0cm 1°C 0mm 0.01kPa 171m 4.2m/s 1.6m/s
05:00 ☾
0.7°C 0mm 98% 0cm 1°C 0mm 0.01kPa 680m 4.1m/s 1.5m/s
06:00 ☾
0.5°C 0mm 97% 0cm 0.89°C 0mm 0.02kPa 12756m 4.7m/s 1.5m/s
07:00
0.4°C 0mm 97% 0cm 0.84°C 0mm 0.02kPa 24135m 4.8m/s 1.5m/s
08:00
0.6°C 0mm 95% 0cm 1.3°C 0mm 0.03kPa 24135m 5m/s 1.8m/s
09:00
0.9°C 0mm 92% 0cm 2°C 0mm 0.05kPa 24135m 5.2m/s 2.5m/s
10:00
1.2°C 0mm 92% 0cm 2.3°C 0mm 0.06kPa 20165m 5.6m/s 2.8m/s
11:00
1.5°C 0.01mm 94% 0.02cm 2.3°C 0mm 0.04kPa 220m 6.3m/s 2.8m/s
12:00
1.6°C 0.01mm 95% 0cm 2.3°C 0mm 0.04kPa 198m 7.4m/s 2.9m/s
13:00
1.3°C 0mm 94% 0cm 2.2°C 0mm 0.04kPa 11724m 7m/s 3.1m/s
14:00
0.1°C 0mm 79% 0cm 3.3°C 0.06mm 0.16kPa 24135m 5.7m/s 3.5m/s
15:00
-0.4°C 0mm 74% 0cm 3.9°C 0mm 0.21kPa 24135m 5.4m/s 3.4m/s
16:00
-0.4°C 0mm 73% 0cm 4.1°C 0mm 0.22kPa 24134m 5.7m/s 3.6m/s
17:00
0°C 0mm 79% 0cm 3.3°C 0mm 0.16kPa 24134m 6.8m/s 3.2m/s
18:00
-0.1°C 0mm 87% 0cm 1.9°C 0mm 0.09kPa 24135m 7m/s 2.7m/s
19:00 ☾
-0.6°C 0mm 92% 0cm 0.65°C 0mm 0.05kPa 24135m 7.5m/s 2.4m/s
20:00 ☾
-1.5°C 0mm 86% 0cm 0.58°C 0mm 0.09kPa 24134m 9.7m/s 2.9m/s
21:00 ☾
-1.4°C 0mm 89% 0cm 0.3°C 0mm 0.07kPa 24134m 10m/s 3m/s
22:00 ☾
-1.2°C 0mm 91% 0cm 0.01°C 0mm 0.05kPa 24135m 10m/s 3.1m/s
23:00 ☾
-1.1°C 0mm 94% 0cm -0.27°C 0mm 0.04kPa 24135m 11m/s 3.2m/s
Wed, Mar 18 Sunrise 06:33 Sunset 18:28
24:00 ☾
-1.2°C 0mm 91% 0cm 0.12°C 0mm 0.06kPa 24135m 11m/s 3.4m/s
01:00 ☾
-1.2°C 0mm 88% 0cm 0.51°C 0mm 0.07kPa 24135m 12m/s 3.7m/s
02:00 ☾
-1.3°C 0mm 85% 0cm 0.9°C 0mm 0.1kPa 24135m 12m/s 3.9m/s
03:00 ☾
-0.6°C 0mm 83% 0cm 2°C 0mm 0.12kPa 24135m 13m/s 4.2m/s
04:00 ☾
0°C 0mm 80% 0cm 3.1°C 0mm 0.15kPa 24135m 13m/s 4.6m/s
05:00 ☾
0.5°C 0mm 77% 0cm 4.2°C 0mm 0.19kPa 24135m 14m/s 4.9m/s
06:00 ☾
1.1°C 0mm 78% 0cm 4.6°C 0mm 0.19kPa 24135m 14m/s 5.1m/s
07:00
1.7°C 0mm 79% 0cm 5°C 0mm 0.18kPa 24135m 14m/s 5.4m/s
08:00
2.3°C 0mm 80% 0cm 5.4°C 0mm 0.18kPa 24135m 14m/s 5.6m/s
09:00
2.2°C 0mm 84% 0cm 4.7°C 0mm 0.14kPa 24135m 14m/s 5.4m/s
10:00
2.2°C 0mm 88% 0cm 4°C 0mm 0.1kPa 24135m 14m/s 5.3m/s
11:00
2.1°C 0mm 92% 0cm 3.3°C 0mm 0.07kPa 24135m 15m/s 5.1m/s
12:00
2.1°C 0mm 92% 0cm 3.3°C 0mm 0.06kPa 24135m 15m/s 5m/s
13:00
2.1°C 0mm 92% 0cm 3.3°C 0mm 0.06kPa 24135m 15m/s 4.9m/s
14:00
2.1°C 0mm 92% 0cm 3.3°C 0mm 0.06kPa 24135m 15m/s 4.8m/s
How to read: these inputs help produce the derived score; they are not requirements by themselves.

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