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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 · ≥ 75.0%

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 Spread3.6°C
Visibility24134 (Clear)
Relative Humidity80%
Wind Speed3.7m/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 95 hours
AND logic: all conditions required
Meets requirement
Misses requirement
Time
Europe/Helsinki
Fog Probability
≥ 75.0%
Fri, Jun 5
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%
Sat, Jun 6
24:000%
01:000%
02:000%
03:000%
04:0056%
05:0064%
06:0062%
07:0042%
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%
22:0043%
23:0048%
Sun, Jun 7
24:0048%
01:0048%
02:0071%
03:0066%
04:0064%
05:0048%
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%
Mon, Jun 8
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%
Tue, Jun 9
24:000%
01:000%
02:000%
03:000%
04:000%
05:000%
06:000%
07:000%
08:000%
09:000%
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
Sat, Jun 6 Sunrise 03:54 Sunset 22:48
11:00
0% 15°C 0mm 80% 0cm 45° 19°C 0.06mm 0.44kPa 24134m 5.6m/s 3.7m/s
12:00
0% 15°C 0.33mm 84% 0cm 49° 18°C 0.5mm 0.34kPa 10562m 7.3m/s 4.5m/s
13:00
0% 16°C 0.02mm 96% 0cm 52° 16°C 1.4mm 0.08kPa 24135m 8.6m/s 3.6m/s
14:00
0% 16°C 0.02mm 94% 0cm 51° 17°C 1.6mm 0.12kPa 19251m 11m/s 4.5m/s
15:00
0% 16°C 0.79mm 96% 0cm 48° 16°C 2.1mm 0.08kPa 11615m 11m/s 4.7m/s
16:00
0% 15°C 1.2mm 98% 0cm 43° 15°C 1.4mm 0.04kPa 4222m 8.3m/s 3.5m/s
17:00
0% 15°C 0.95mm 98% 0cm 37° 15°C 2.9mm 0.03kPa 1140m 7m/s 2.8m/s
18:00
0% 15°C 0.17mm 96% 0cm 30° 16°C 3.6mm 0.06kPa 21601m 7.4m/s 3m/s
19:00
0% 15°C 0.08mm 97% 0cm 22° 16°C 3.7mm 0.06kPa 21724m 9.6m/s 3.7m/s
20:00
0% 15°C 0mm 97% 0cm 15° 15°C 3.8mm 0.05kPa 24134m 8.6m/s 3.9m/s
21:00
0% 14°C 0mm 97% 0cm 8.7° 15°C 3.9mm 0.05kPa 21968m 7.8m/s 3.6m/s
22:00
2% 13°C 0.01mm 96% 0cm 3.2° 14°C 0.13mm 0.07kPa 24134m 7.2m/s 3.1m/s
23:00 ☾
4% 12°C 0.09mm 96% 0cm -1.4° 13°C 0.19mm 0.05kPa 24135m 7.1m/s 3.9m/s
Sun, Jun 7 Sunrise 03:54 Sunset 22:48
24:00 ☾
6% 11°C 0.1mm 96% 0cm -4.6° 11°C 0.38mm 0.05kPa 24135m 12m/s 5m/s
01:00 ☾
8% 11°C 0.01mm 94% 0cm -6.1° 11°C 0.44mm 0.07kPa 24134m 12m/s 4.1m/s
02:00 ☾
10% 11°C 0mm 96% 0cm -5.8° 11°C 0.44mm 0.05kPa 24134m 12m/s 3.5m/s
03:00 ☾
12% 11°C 0mm 96% 0cm -3.8° 11°C 0.44mm 0.05kPa 24134m 10m/s 3.2m/s
04:00
24% 10°C 0mm 95% 0cm 0.2° 11°C 0mm 0.06kPa 24134m 10m/s 3.4m/s
05:00
36% 9.4°C 0mm 97% 0cm 4.8° 9.9°C 0mm 0.04kPa 24135m 10m/s 3.3m/s
06:00
48% 9.6°C 0mm 95% 0cm 11° 10°C 0mm 0.06kPa 24134m 12m/s 3.4m/s
07:00
52% 10°C 0mm 90% 0cm 17° 12°C 0mm 0.14kPa 24134m 11m/s 3.6m/s
08:00
56% 11°C 0mm 81% 0cm 24° 14°C 0mm 0.3kPa 24135m 9.4m/s 3.9m/s
09:00
60% 9.2°C 0mm 63% 0cm 32° 16°C 0mm 0.69kPa 24135m 8.8m/s 4.4m/s
10:00
69% 8.1°C 0mm 51% 0cm 39° 18°C 0mm 1kPa 24135m 7.7m/s 4.7m/s
11:00
78% 7.3°C 0mm 45% 0cm 45° 20°C 0mm 1.3kPa 24134m 8.6m/s 5m/s
12:00
87% 6.5°C 0mm 40% 0cm 49° 21°C 0mm 1.5kPa 24135m 8.4m/s 5.2m/s
13:00
86% 6.6°C 0mm 38% 0cm 52° 21°C 0mm 1.6kPa 24135m 8m/s 5.4m/s
14:00
86% 6.4°C 0mm 37% 0cm 51° 22°C 0mm 1.6kPa 24135m 7.7m/s 5.7m/s
15:00
85% 6.2°C 0mm 37% 0cm 48° 22°C 0mm 1.6kPa 24135m 7.3m/s 5.3m/s
16:00
79% 6°C 0mm 36% 0cm 43° 22°C 0mm 1.7kPa 24134m 6.8m/s 4.8m/s
17:00
73% 5.8°C 0mm 36% 0cm 37° 22°C 0mm 1.7kPa 24135m 6m/s 4.5m/s
18:00
67% 5.7°C 0mm 36% 0cm 30° 21°C 0mm 1.6kPa 24135m 5.4m/s 4.1m/s
19:00
73% 6.4°C 0mm 39% 0cm 22° 21°C 0mm 1.5kPa 24135m 4.8m/s 3.6m/s
20:00
78% 6.7°C 0mm 44% 0cm 15° 19°C 0mm 1.3kPa 24134m 5.2m/s 3.3m/s
21:00
84% 7.2°C 0mm 53% 0cm 8.8° 17°C 0mm 0.92kPa 24135m 6.1m/s 2.4m/s
22:00
83% 7.3°C 0mm 64% 0cm 3.3° 14°C 0mm 0.57kPa 24134m 3.9m/s 2.1m/s
23:00 ☾
83% 6.7°C 0mm 70% 0cm -1.3° 12°C 0mm 0.42kPa 24134m 4.2m/s 2.1m/s
Mon, Jun 8 Sunrise 03:53 Sunset 22:49
24:00 ☾
82% 6.5°C 0mm 74% 0cm -4.5° 11°C 0mm 0.34kPa 24134m 3m/s 1.9m/s
01:00 ☾
82% 6.2°C 0mm 76% 0cm -6° 10°C 0mm 0.3kPa 24135m 1.7m/s 1.7m/s
02:00 ☾
81% 6°C 0mm 78% 0cm -5.8° 9.7°C 0mm 0.27kPa 24134m 1.3m/s 1.3m/s
03:00 ☾
81% 5.9°C 0mm 78% 0cm -3.7° 9.4°C 0mm 0.25kPa 24134m 1.3m/s 1.3m/s
04:00
69% 5.7°C 0mm 80% 0cm 0.27° 9.1°C 0mm 0.24kPa 24134m 0.92m/s 0.91m/s
05:00
57% 5.9°C 0mm 78% 0cm 4.8° 9.7°C 0mm 0.27kPa 24135m 0.91m/s 0.95m/s
06:00
45% 6.5°C 0mm 71% 0cm 11° 12°C 0mm 0.4kPa 24135m 1.2m/s 0.95m/s
07:00
38% 6.5°C 0mm 61% 0cm 17° 14°C 0mm 0.62kPa 24135m 1.6m/s 1.1m/s
08:00
31% 6.6°C 0mm 54% 0cm 25° 16°C 0mm 0.83kPa 24134m 1.7m/s 1.2m/s
09:00
24% 6.7°C 0mm 49% 0cm 32° 18°C 0mm 1kPa 24134m 1.6m/s 1.2m/s
10:00
22% 6.4°C 0mm 43% 0cm 39° 19°C 0mm 1.3kPa 24134m 1.8m/s 1.4m/s
11:00
20% 6.2°C 0mm 39% 0cm 45° 21°C 0mm 1.5kPa 24135m 1.7m/s 1.4m/s
12:00
18% 6°C 0mm 36% 0cm 49° 22°C 0mm 1.7kPa 24134m 1.8m/s 1.5m/s
13:00
16% 5.9°C 0mm 34% 0cm 52° 23°C 0mm 1.8kPa 24135m 1.8m/s 1.6m/s
14:00
13% 5.8°C 0mm 34% 0cm 51° 23°C 0mm 1.8kPa 24135m 2m/s 1.9m/s
15:00
11% 5.7°C 0mm 32% 0cm 48° 23°C 0mm 1.9kPa 24135m 2.2m/s 2.2m/s
16:00
11% 5.6°C 0mm 31% 0cm 43° 23°C 0mm 2kPa 24134m 2.2m/s 2.2m/s
17:00
12% 5.6°C 0mm 31% 0cm 37° 24°C 0mm 2kPa 24135m 2.2m/s 2.1m/s
18:00
12% 5.7°C 0mm 32% 0cm 30° 23°C 0mm 1.9kPa 24134m 2.5m/s 2.3m/s
19:00
11% 6.2°C 0mm 34% 0cm 22° 23°C 0mm 1.8kPa 24135m 2.4m/s 2.5m/s
20:00
11% 8.3°C 0mm 43% 0cm 15° 22°C 0mm 1.5kPa 24135m 4.7m/s 2.4m/s
21:00
10% 10°C 0mm 56% 0cm 8.9° 19°C 0mm 0.95kPa 24135m 4.2m/s 1.9m/s
22:00
15% 9.3°C 0mm 60% 0cm 3.4° 17°C 0mm 0.78kPa 24135m 3.2m/s 1.6m/s
23:00 ☾
19% 8.6°C 0mm 64% 0cm -1.1° 15°C 0mm 0.63kPa 24135m 2.1m/s 1.3m/s
Tue, Jun 9 Sunrise 03:52 Sunset 22:51
24:00 ☾
24% 7.8°C 0mm 68% 0cm -4.4° 14°C 0mm 0.5kPa 24135m 1m/s 0.95m/s
01:00 ☾
25% 8°C 0mm 61% 0cm -5.9° 16°C 0mm 0.7kPa 24135m 1.7m/s 1.2m/s
02:00 ☾
26% 8°C 0mm 53% 0cm -5.7° 18°C 0mm 0.93kPa 24135m 2.3m/s 1.4m/s
03:00 ☾
27% 7.8°C 0mm 46% 0cm -3.7° 20°C 0mm 1.2kPa 24135m 2.9m/s 1.7m/s
04:00
28% 7.6°C 0mm 42% 0cm 0.33° 21°C 0mm 1.4kPa 24135m 3.2m/s 1.8m/s
05:00
29% 7.3°C 0mm 38% 0cm 4.9° 22°C 0mm 1.6kPa 24135m 3.5m/s 2m/s
06:00
30% 6.9°C 0mm 35% 0cm 11° 23°C 0mm 1.9kPa 24135m 3.8m/s 2.1m/s
07:00
29% 7.9°C 0mm 39% 0cm 17° 22°C 0mm 1.6kPa 24135m 4.7m/s 2.7m/s
08:00
28% 8.7°C 0mm 44% 0cm 25° 21°C 0mm 1.4kPa 24135m 5.6m/s 3.3m/s
09:00
27% 9.3°C 0mm 48% 0cm 32° 21°C 0mm 1.3kPa 24135m 6.5m/s 3.8m/s
10:00
29% 9.6°C 0mm 53% 0cm 39° 19°C 0mm 1.1kPa 24135m 7.1m/s 3.7m/s
How to read: these inputs help produce the derived score; they are not requirements by themselves.

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