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Rule Fog Hunter

Vršič Pass - Fog Hunter - Slovenian Alps

Kranjska Gora, Kranjska Gora, Slovenia

Thick, moody fog for atmospheric forest and landscape shots

Currently

Real-time conditions
Fog Probability
60%
Dewpoint Spread0.9°C
Visibility24134 (Clear)
Relative Humidity94%
Wind Speed2.0m/s (calm conditions)

Upcoming Opportunities

When all conditions match, PhotoWeather marks an opportunity window.

Times shown in Europe/Ljubljana
fog weather icon
Next opportunity
Dense Fog (lingering)
Vršič Pass
Tue, Feb 24 · 20:00–04:00 · 8h window
High confidence
77%
🌫️Fog Probability87.5-100%
Dewpoint Spread: 0.4°C
Visibility: 564 (Fog)
Relative Humidity: 97%
Wind Speed: 1.1m/s (calm conditions)

What this forecast looks for

Plain-language explanation from the rule

This forecast tracks the atmospheric conditions that create Slovenia's most iconic photography. We combine fog probability, dewpoint spread, and visibility data to predict when mist transforms these fairy-tale landscapes.

Lake Bled with its island church is one of Europe's most photographed scenes, but morning fog can elevate it to truly magical. The Julian Alps offer dramatic peaks rising above emerald lakes and valleys, with conditions that can transform overnight.

What makes the Slovenian Alps special for photography:

  • Lake fog - Bled and Bohinj produce reliable morning mist that frames the dramatic scenery
  • Fairy-tale compositions - Island churches, medieval castles, and Alpine villages
  • Emerald waters - Glacially-fed lakes with distinctive turquoise color
  • Compact geography - Multiple iconic locations within short distances

Peak fog season runs from late August through October. Arrive well before dawn for the best mist at Lake Bled—conditions can change rapidly as the sun warms the valley. Higher viewpoints like Ojstrica or Mala Osojnica offer shots looking down at fog-shrouded lakes.

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72-hour requirements breakdown

What passed or failed, hour by hour
8matching hours in the next 95 hoursJump to next match
AND logic: all conditions required
Meets requirement
Misses requirement
Time
Europe/Ljubljana
Fog Probability
≥ 85.0%
Dewpoint Spread
≤ 2.0°C
Visibility
≤ 3000.0m
Wind Speed
≤ 2.0m/s
Sat, Feb 21
20:000%1.3°C24135m1.5m/s
21:0060%0.9°C24134m0.69m/s
22:0060%0.8°C24135m1.4m/s
23:0060%1°C24135m1.5m/s
Sun, Feb 22
24:000%1°C24135m1.2m/s
01:000%1.1°C24135m1.2m/s
02:000%1°C24135m1.2m/s
03:000%1.4°C24134m0.9m/s
04:000%1.7°C24135m1m/s
05:000%1.7°C24134m0.75m/s
06:000%1.8°C24135m0.64m/s
07:000%2°C24134m1m/s
08:000%2.7°C24134m1m/s
09:000%4.4°C24134m1m/s
10:000%5.8°C24135m1.2m/s
11:000%6.7°C24135m1.1m/s
12:000%7.3°C24135m1.3m/s
13:000%7.7°C24134m1.5m/s
14:000%6.2°C24135m1.8m/s
15:000%5.4°C24135m1.8m/s
16:000%3.3°C24135m1.6m/s
17:000%1.4°C24135m1.9m/s
18:0060%0.7°C24135m2.1m/s
19:0060%0.8°C24135m2m/s
20:0060%0.9°C24134m2m/s
21:000%1.1°C24134m1.8m/s
22:000%1.1°C24135m1.9m/s
23:000%1.3°C24135m2m/s
Mon, Feb 23
24:000%1.4°C24135m2m/s
01:000%1.4°C24135m1.9m/s
02:000%1.6°C24135m1.8m/s
03:000%1.6°C24135m1.7m/s
04:000%1.7°C24135m1.8m/s
05:000%1.7°C24134m1.7m/s
06:000%1.6°C24135m1.7m/s
07:000%1.6°C24134m1.7m/s
08:000%2.1°C24135m1.5m/s
09:000%4.3°C24134m1.2m/s
10:000%6.3°C24135m1m/s
11:000%7.7°C24134m0.81m/s
12:000%8.5°C24134m0.96m/s
13:000%9°C24135m0.95m/s
14:000%9°C24134m1.1m/s
15:000%8.6°C24135m0.87m/s
16:000%6.6°C24135m0.38m/s
17:000%3.3°C24134m0.52m/s
18:000%2°C24134m1m/s
19:000%1.3°C24134m1.6m/s
20:0060%0.9°C24135m1.8m/s
21:0060%0.9°C24135m1.8m/s
22:0060%0.9°C24135m1.9m/s
23:0060%0.8°C24135m2.1m/s
Tue, Feb 24
24:0068%0.8°C14545m2.1m/s
01:0068%0.8°C10614m2.2m/s
02:0068%0.7°C10458m2m/s
03:0068%0.9°C10559m1.9m/s
04:000%1.1°C24135m1.7m/s
05:000%1.1°C11011m1.8m/s
06:000%1.3°C24135m1.8m/s
07:000%1.1°C24135m1.7m/s
08:000%1.6°C24134m1.4m/s
09:000%3.2°C24134m1.4m/s
10:000%4.9°C24135m1.1m/s
11:000%5.7°C24135m0.76m/s
12:000%5.8°C24134m1.3m/s
13:000%5°C24135m2m/s
14:000%3.7°C24134m2m/s
15:000%2.8°C24135m1.8m/s
16:000%2.1°C24135m1.5m/s
17:000%1.3°C24134m1.2m/s
18:0068%0.9°C11787m0.96m/s
19:0072%0.6°C10617m1.1m/s
20:00100%0.4°C564m1.1m/s
21:00100%0.3°C189m1.2m/s
22:00100%0.2°C147m1.1m/s
23:00100%0.3°C154m1.1m/s
Wed, Feb 25
24:00100%0.2°C147m1m/s
01:00100%0.2°C161m0.9m/s
02:00100%0.5°C1382m0.84m/s
03:0088%0.8°C2603m0.78m/s
04:000%1.1°C3824m0.72m/s
05:000%1.7°C10594m0.65m/s
06:000%2.4°C17365m0.57m/s
07:000%3.2°C24135m0.49m/s
08:000%3°C24135m0.59m/s
09:000%2.9°C24135m0.68m/s
10:000%2.7°C24135m0.78m/s
11:000%2.3°C24135m0.71m/s
12:000%1.8°C24135m0.64m/s
13:000%1.4°C24135m0.57m/s
14:000%1.3°C24135m0.6m/s
15:000%1.2°C24135m0.63m/s
16:000%1.2°C24135m0.66m/s
17:000%1.2°C24135m0.68m/s
18:000%1.3°C24135m0.69m/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 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/Ljubljana
Dew Point
°C
Rainfall
mm
Relative Humidity
%
Snowfall
cm
Temperature
°C
Total Precipitation
mm
Vapor Pressure Deficit
kPa
Wind Gusts
m/s
Sun, Feb 22 Sunrise 06:57 Sunset 17:40
20:00 ☾
0.5°C 0mm 94% 0cm 1.4°C 0mm 0.04kPa 2m/s
21:00 ☾
0.3°C 0mm 93% 0cm 1.4°C 0mm 0.05kPa 2m/s
22:00 ☾
-0.3°C 0mm 92% 0cm 0.84°C 0mm 0.05kPa 2m/s
23:00 ☾
-0.8°C 0mm 91% 0cm 0.51°C 0mm 0.06kPa 2.2m/s
Mon, Feb 23 Sunrise 06:57 Sunset 17:40
24:00 ☾
-1.2°C 0mm 90% 0cm 0.24°C 0mm 0.06kPa 2.6m/s
01:00 ☾
-1.3°C 0mm 90% 0cm 0.12°C 0mm 0.06kPa 2.5m/s
02:00 ☾
-1.2°C 0mm 89% 0cm 0.44°C 0mm 0.07kPa 2.3m/s
03:00 ☾
-1.3°C 0mm 88% 0cm 0.33°C 0mm 0.07kPa 2.1m/s
04:00 ☾
-1.6°C 0mm 89% 0cm 0.07°C 0mm 0.07kPa 2.3m/s
05:00 ☾
-1.5°C 0mm 88% 0cm 0.2°C 0mm 0.07kPa 2.1m/s
06:00 ☾
-1.7°C 0mm 89% 0cm -0.14°C 0mm 0.07kPa 2.2m/s
07:00
-1.6°C 0mm 89% 0cm 0.04°C 0mm 0.07kPa 2m/s
08:00
-0.9°C 0mm 86% 0cm 1.2°C 0mm 0.09kPa 2.1m/s
09:00
-0.1°C 0mm 73% 0cm 4.2°C 0mm 0.22kPa 1.8m/s
10:00
-0.2°C 0mm 64% 0cm 6.1°C 0mm 0.34kPa 1.3m/s
11:00
-0.2°C 0mm 58% 0cm 7.5°C 0mm 0.43kPa 1m/s
12:00
0°C 0mm 55% 0cm 8.5°C 0mm 0.5kPa 1.1m/s
13:00
0.2°C 0mm 54% 0cm 9.2°C 0mm 0.54kPa 1.2m/s
14:00
0.4°C 0mm 53% 0cm 9.4°C 0mm 0.55kPa 1.4m/s
15:00
0.6°C 0mm 55% 0cm 9.2°C 0mm 0.52kPa 1.2m/s
16:00
1.9°C 0mm 63% 0cm 8.5°C 0mm 0.4kPa 1m/s
17:00
2.7°C 0mm 79% 0cm 6°C 0mm 0.19kPa 0.61m/s
18:00 ☾
2.1°C 0mm 87% 0cm 4.1°C 0mm 0.1kPa 0.91m/s
19:00 ☾
2°C 0mm 91% 0cm 3.3°C 0mm 0.07kPa 1.4m/s
20:00 ☾
1.6°C 0mm 94% 0cm 2.5°C 0mm 0.05kPa 1.8m/s
21:00 ☾
1.2°C 0mm 94% 0cm 2.1°C 0mm 0.04kPa 2m/s
22:00 ☾
0.8°C 0mm 94% 0cm 1.7°C 0mm 0.04kPa 2.4m/s
23:00 ☾
0.7°C 0mm 94% 0cm 1.5°C 0mm 0.04kPa 2.7m/s
Tue, Feb 24 Sunrise 06:55 Sunset 17:41
24:00 ☾
0.4°C 0mm 94% 0cm 1.2°C 0mm 0.04kPa 3.1m/s
01:00 ☾
0.2°C 0mm 94% 0cm 1°C 0mm 0.04kPa 3.3m/s
02:00 ☾
0.2°C 0mm 94% 0cm 0.95°C 0mm 0.04kPa 3.2m/s
03:00 ☾
0.2°C 0mm 94% 0cm 1.1°C 0mm 0.04kPa 2.8m/s
04:00 ☾
0.1°C 0mm 92% 0cm 1.2°C 0mm 0.05kPa 2.1m/s
05:00 ☾
0°C 0mm 92% 0cm 1.1°C 0mm 0.05kPa 2.2m/s
06:00 ☾
-0.4°C 0mm 91% 0cm 0.87°C 0mm 0.06kPa 2.2m/s
07:00
-0.6°C 0mm 92% 0cm 0.51°C 0mm 0.05kPa 1.8m/s
08:00
-0.1°C 0mm 90% 0cm 1.5°C 0mm 0.07kPa 2.1m/s
09:00
0.5°C 0mm 80% 0cm 3.7°C 0mm 0.16kPa 2.2m/s
10:00
0.6°C 0mm 71% 0cm 5.5°C 0mm 0.26kPa 1.6m/s
11:00
0.8°C 0mm 67% 0cm 6.5°C 0mm 0.32kPa 1m/s
12:00
1.1°C 0mm 66% 0cm 6.9°C 0mm 0.33kPa 1m/s
13:00
1.4°C 0mm 71% 0cm 6.4°C 0mm 0.28kPa 1.6m/s
14:00
1.8°C 0.01mm 77% 0cm 5.5°C 0mm 0.21kPa 1.8m/s
15:00
2°C 0.01mm 82% 0cm 4.8°C 0mm 0.16kPa 1.8m/s
16:00
2.1°C 0mm 86% 0cm 4.2°C 0mm 0.11kPa 1.7m/s
17:00
2.2°C 0.01mm 91% 0cm 3.5°C 0mm 0.07kPa 1.6m/s
18:00 ☾
2.3°C 0.01mm 94% 0cm 3.2°C 0mm 0.05kPa 1.5m/s
19:00 ☾
2.6°C 0mm 95% 0cm 3.2°C 0mm 0.04kPa 1.7m/s
20:00 ☾
2.8°C 0mm 97% 0cm 3.2°C 0mm 0.02kPa 1.8m/s
21:00 ☾
2.9°C 0.01mm 98% 0cm 3.2°C 0mm 0.01kPa 2m/s
22:00 ☾
3°C 0mm 98% 0cm 3.2°C 0mm 0.01kPa 1.8m/s
23:00 ☾
2.9°C 0mm 98% 0cm 3.2°C 0mm 0.02kPa 1.7m/s
Wed, Feb 25 Sunrise 06:53 Sunset 17:43
24:00 ☾
2.8°C 0.02mm 99% 0cm 3°C 0mm 0.01kPa 1.6m/s
01:00 ☾
2.8°C 0mm 98% 0cm 3°C 0.06mm 0.01kPa 1.3m/s
02:00 ☾
2.9°C 0mm 97% 0cm 3.4°C 0.04mm 0.03kPa 1.3m/s
03:00 ☾
3°C 0mm 95% 0cm 3.8°C 0.02mm 0.04kPa 1.2m/s
04:00 ☾
3.1°C 0mm 93% 0cm 4.2°C 0mm 0.06kPa 1.2m/s
05:00 ☾
3°C 0mm 88% 0cm 4.7°C 0.02mm 0.1kPa 1.1m/s
06:00 ☾
2.9°C 0mm 84% 0cm 5.3°C 0.04mm 0.14kPa 0.96m/s
07:00
2.7°C 0mm 80% 0cm 5.9°C 0.06mm 0.18kPa 0.84m/s
08:00
2.9°C 0mm 81% 0cm 5.9°C 0.04mm 0.18kPa 0.87m/s
09:00
3°C 0mm 82% 0cm 5.9°C 0.02mm 0.17kPa 0.91m/s
10:00
3.2°C 0mm 83% 0cm 5.9°C 0mm 0.16kPa 0.94m/s
11:00
3.2°C 0mm 85% 0cm 5.5°C 0mm 0.13kPa 0.88m/s
12:00
3.2°C 0mm 88% 0cm 5°C 0mm 0.11kPa 0.82m/s
13:00
3.2°C 0mm 90% 0cm 4.6°C 0mm 0.08kPa 0.75m/s
14:00
2.9°C 0mm 91% 0cm 4.2°C 0mm 0.07kPa 0.71m/s
15:00
2.6°C 0mm 91% 0cm 3.8°C 0mm 0.07kPa 0.66m/s
16:00
2.3°C 0mm 92% 0cm 3.5°C 0mm 0.06kPa 0.61m/s
17:00
2°C 0mm 92% 0cm 3.2°C 0mm 0.06kPa 0.61m/s
18:00 ☾
1.7°C 0mm 92% 0cm 3°C 0mm 0.06kPa 0.61m/s
19:00 ☾
1.5°C 0mm 91% 0cm 2.7°C 0mm 0.06kPa 0.6m/s
How to read: these inputs help produce the derived score; they are not requirements by themselves.

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