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More Fog Hunter in Southern Finland
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Rule Fog Hunter

Aulanko - Fog Hunter - Southern Finland

Hämeenlinna, Kanta-Häme, 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 · ≥ 60.0%

Tip: Scroll down to the 72-hour table to see exactly which condition fails hour by hour.

Most common blockers (next 72 hours)
Fog Probability 100% failing

Currently

Real-time conditions
Fog Probability
0%
Dewpoint Spread7.8°C
Visibility24134 (Clear)
Relative Humidity58%
Wind Speed1.8m/s (calm conditions)

Upcoming Opportunities

When all conditions match, PhotoWeather marks an opportunity window.

Times shown in Europe/Helsinki

No opportunities in the next 10 days

See the blocker timeline below to understand which conditions are preventing matches.

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
0matching hours in the next 86 hours
AND logic: all conditions required
Meets requirement
Misses requirement
Time
Europe/Helsinki
Fog Probability
≥ 60.0%
Tue, Apr 21
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, Apr 22
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%
Thu, Apr 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%
Fri, Apr 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%
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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
Tue, Apr 21 Sunrise 05:44 Sunset 20:58
22:00 ☾
73% 0.1°C 0mm 58% 0cm -6.9° 7.9°C 0mm 0.45kPa 24134m 1.8m/s 1.8m/s
23:00 ☾
77% 0.3°C 0mm 61% 0cm -12° 7.4°C 0mm 0.4kPa 24134m 1.9m/s 1.9m/s
Wed, Apr 22 Sunrise 05:44 Sunset 20:58
24:00 ☾
80% 0.6°C 0mm 65% 0cm -15° 6.8°C 0mm 0.35kPa 24134m 3.3m/s 2.1m/s
01:00 ☾
83% 0.8°C 0mm 69% 0cm -17° 6.1°C 0mm 0.29kPa 24134m 2.9m/s 2m/s
02:00 ☾
85% 0.6°C 0mm 70% 0cm -16° 5.5°C 0mm 0.27kPa 24135m 3.3m/s 2.1m/s
03:00 ☾
88% 0.4°C 0mm 72% 0cm -14° 5°C 0mm 0.24kPa 24134m 5.7m/s 2.2m/s
04:00 ☾
82% 0°C 0mm 73% 0cm -10° 4.4°C 0mm 0.22kPa 24135m 6.9m/s 2.2m/s
05:00 ☾
75% -0.4°C 0mm 73% 0cm -5° 3.9°C 0mm 0.22kPa 24134m 8.3m/s 2.3m/s
06:00
69% -0.4°C 0mm 73% 0cm 1.5° 4°C 0mm 0.22kPa 24135m 11m/s 3.1m/s
07:00
51% 0.5°C 0mm 72% 0cm 8.3° 5.2°C 0mm 0.25kPa 24134m 12m/s 3.7m/s
08:00
34% 0.5°C 0mm 65% 0cm 15° 6.5°C 0mm 0.33kPa 24135m 12m/s 4.3m/s
09:00
16% 0.2°C 0mm 62% 0cm 23° 7°C 0mm 0.38kPa 24134m 12m/s 4.5m/s
10:00
11% -0.1°C 0mm 59% 0cm 29° 7.4°C 0mm 0.43kPa 24134m 11m/s 4.6m/s
11:00
5% -1.2°C 0mm 52% 0cm 35° 8.1°C 0mm 0.52kPa 24134m 9m/s 5.1m/s
12:00
0% -1.3°C 0mm 48% 0cm 39° 9.3°C 0mm 0.61kPa 24135m 9.1m/s 5.6m/s
13:00
0% -1.3°C 0mm 44% 0cm 41° 10°C 0mm 0.69kPa 24134m 9.6m/s 5.6m/s
14:00
0% -0.7°C 0mm 43% 0cm 41° 11°C 0mm 0.77kPa 24134m 11m/s 6.2m/s
15:00
0% -0.5°C 0mm 42% 0cm 38° 12°C 0mm 0.83kPa 24135m 9.9m/s 6.5m/s
16:00
0% -0.2°C 0mm 42% 0cm 33° 12°C 0mm 0.82kPa 24135m 10m/s 6.2m/s
17:00
0% 0.9°C 0mm 46% 0cm 27° 12°C 0mm 0.75kPa 24135m 11m/s 5.9m/s
18:00
0% 0.8°C 0mm 50% 0cm 21° 11°C 0mm 0.64kPa 24135m 12m/s 5.9m/s
19:00
0% 0.7°C 0mm 52% 0cm 13° 10°C 0mm 0.6kPa 24135m 13m/s 6.4m/s
20:00
0% 0.3°C 0mm 54% 0cm 6.2° 9°C 0.06mm 0.53kPa 24134m 14m/s 6.6m/s
21:00
0% -1°C 0mm 56% 0cm -0.16° 7.2°C 0.06mm 0.45kPa 24134m 17m/s 6.3m/s
22:00 ☾
32% -5°C 0mm 45% 0cm -6.6° 6°C 0mm 0.51kPa 24134m 18m/s 6.8m/s
23:00 ☾
64% -6.4°C 0mm 45% 0cm -11° 4.7°C 0mm 0.47kPa 24134m 19m/s 6.8m/s
Thu, Apr 23 Sunrise 05:41 Sunset 21:01
24:00 ☾
96% -8.7°C 0mm 42% 0cm -15° 2.9°C 0mm 0.43kPa 24135m 17m/s 7m/s
01:00 ☾
97% -8.8°C 0mm 47% 0cm -16° 1.2°C 0mm 0.35kPa 24135m 11m/s 5.7m/s
02:00 ☾
98% -9°C 0mm 49% 0cm -16° 0.49°C 0mm 0.32kPa 24135m 11m/s 5.5m/s
03:00 ☾
99% -9.1°C 0mm 51% 0cm -14° -0.07°C 0mm 0.3kPa 24134m 11m/s 5.3m/s
04:00 ☾
96% -8.8°C 0mm 54% 0cm -10° -0.57°C 0mm 0.27kPa 24135m 11m/s 5.3m/s
05:00 ☾
94% -8.7°C 0mm 56% 0cm -4.7° -1°C 0mm 0.25kPa 24135m 11m/s 5.3m/s
06:00
91% -8.7°C 0mm 58% 0cm 1.8° -1.5°C 0mm 0.23kPa 24135m 11m/s 5.2m/s
07:00
90% -8.3°C 0mm 59% 0cm 8.6° -1.4°C 0mm 0.22kPa 24135m 12m/s 5.4m/s
08:00
90% -8°C 0mm 56% 0cm 16° -0.17°C 0mm 0.27kPa 24135m 12m/s 5.4m/s
09:00
89% -8.4°C 0mm 49% 0cm 23° 1°C 0mm 0.33kPa 24135m 11m/s 5.9m/s
10:00
78% -8.7°C 0mm 44% 0cm 30° 2.2°C 0mm 0.4kPa 24135m 11m/s 6m/s
11:00
68% -8.5°C 0mm 41% 0cm 35° 3.6°C 0mm 0.47kPa 24134m 10m/s 6m/s
12:00
57% -8.1°C 0mm 38% 0cm 39° 5°C 0mm 0.54kPa 24135m 10m/s 5.9m/s
13:00
51% -7.9°C 0mm 36% 0cm 41° 6.1°C 0mm 0.6kPa 24135m 11m/s 6.2m/s
14:00
44% -7.8°C 0mm 34% 0cm 41° 6.8°C 0mm 0.65kPa 24135m 11m/s 6.3m/s
15:00
38% -7.4°C 0mm 33% 0cm 38° 7.7°C 0mm 0.7kPa 24134m 11m/s 6.2m/s
16:00
33% -6.1°C 0mm 35% 0cm 34° 8.6°C 0mm 0.73kPa 24135m 11m/s 5.8m/s
17:00
27% -4.9°C 0mm 38% 0cm 28° 8.6°C 0mm 0.69kPa 24135m 10m/s 5.6m/s
18:00
22% -4.3°C 0mm 42% 0cm 21° 8°C 0mm 0.62kPa 24134m 9.7m/s 5.4m/s
19:00
17% -4.2°C 0mm 44% 0cm 14° 7.2°C 0mm 0.57kPa 24135m 9.9m/s 4.8m/s
20:00
13% -3.8°C 0mm 48% 0cm 6.5° 6.5°C 0mm 0.51kPa 24134m 9.8m/s 4.8m/s
21:00
8% -3.8°C 0mm 52% 0cm 0.16° 5.4°C 0mm 0.43kPa 24134m 9.1m/s 4.4m/s
22:00 ☾
8% -3.7°C 0mm 55% 0cm -6.3° 4.6°C 0mm 0.39kPa 24134m 9.2m/s 3.9m/s
23:00 ☾
8% -3.6°C 0mm 57% 0cm -11° 4.1°C 0mm 0.35kPa 24134m 9.3m/s 3.6m/s
Fri, Apr 24 Sunrise 05:38 Sunset 21:03
24:00 ☾
8% -3.5°C 0mm 60% 0cm -15° 3.5°C 0mm 0.31kPa 24134m 9.2m/s 3.3m/s
01:00 ☾
8% -3.2°C 0mm 64% 0cm -16° 2.9°C 0mm 0.27kPa 24135m 9.1m/s 3.1m/s
02:00 ☾
8% -3.1°C 0mm 68% 0cm -16° 2.2°C 0mm 0.23kPa 24135m 9m/s 2.9m/s
03:00 ☾
8% -3.1°C 0mm 73% 0cm -14° 1.3°C 0mm 0.18kPa 24135m 8.7m/s 2.7m/s
04:00 ☾
12% -3.2°C 0mm 61% 0cm -9.7° 3.6°C 0mm 0.31kPa 24135m 7.2m/s 2.8m/s
05:00 ☾
17% -3.8°C 0mm 50% 0cm -4.4° 5.9°C 0mm 0.47kPa 24135m 5.7m/s 2.8m/s
06:00
21% -5.2°C 0mm 38% 0cm 2.1° 8.2°C 0mm 0.67kPa 24135m 4.2m/s 2.8m/s
07:00
23% -5.3°C 0mm 36% 0cm 8.9° 8.9°C 0mm 0.73kPa 24135m 4m/s 2.8m/s
08:00
26% -5.3°C 0mm 34% 0cm 16° 9.7°C 0mm 0.79kPa 24135m 3.8m/s 2.7m/s
09:00
28% -5.4°C 0mm 32% 0cm 23° 10°C 0mm 0.85kPa 24135m 3.5m/s 2.7m/s
10:00
37% -5.3°C 0mm 32% 0cm 30° 11°C 0mm 0.86kPa 24135m 3.4m/s 2.5m/s
11:00
45% -5.2°C 0mm 33% 0cm 36° 11°C 0mm 0.86kPa 24135m 3.3m/s 2.2m/s
12:00
54% -5°C 0mm 33% 0cm 40° 11°C 0mm 0.87kPa 24135m 3.2m/s 2m/s
13:00
50% -4.5°C 0mm 37% 0cm 42° 9.3°C 0mm 0.73kPa 24135m 2.5m/s 1.8m/s
14:00
47% -4.2°C 0mm 42% 0cm 41° 7.8°C 0mm 0.61kPa 24135m 1.9m/s 1.6m/s
15:00
43% -4.1°C 0mm 47% 0cm 39° 6.4°C 0mm 0.51kPa 24135m 1.2m/s 1.3m/s
16:00
36% -3.5°C 0mm 51% 0cm 34° 5.8°C 0mm 0.45kPa 24135m 1.4m/s 1.4m/s
17:00
30% -3°C 0mm 55% 0cm 28° 5.3°C 0mm 0.4kPa 24135m 1.5m/s 1.4m/s
18:00
23% -2.5°C 0mm 59% 0cm 21° 4.8°C 0mm 0.35kPa 24135m 1.6m/s 1.5m/s
19:00
22% -2.3°C 0mm 61% 0cm 14° 4.5°C 0mm 0.33kPa 24135m 2.7m/s 1.6m/s
20:00
21% -2°C 0mm 64% 0cm 6.8° 4.2°C 0mm 0.3kPa 24135m 3.9m/s 1.7m/s
21:00
20% -1.9°C 0mm 66% 0cm 0.39° 4°C 0mm 0.28kPa 24135m 5m/s 1.8m/s
How to read: these inputs help produce the derived score; they are not requirements by themselves.

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