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Rule Fog Hunter

Lake Bohinj - Fog Hunter - Slovenian Alps

Bohinjska Bistrica, Bohinj Municipality, Slovenia

Thick, moody fog for atmospheric forest and landscape shots

Currently

Real-time conditions
Fog Probability
0%
Dewpoint Spread1.0°C
Visibility24135 (Clear)
Relative Humidity93%
Wind Speed1.2m/s (calm conditions)

Upcoming Opportunities

When all conditions match, PhotoWeather marks an opportunity window.

Times shown in Europe/Ljubljana
Next opportunity
Dense Fog (lingering, sunbreaks) at Sunset
Lake Bohinj
Today · 17:00–18:00 · 1h window
High confidence
79%
🌫️Fog Probability100%
Dewpoint Spread: 0.5°C
Visibility: 1216 (Mist/Haze)
Relative Humidity: 96%
Wind Speed: 0.9m/s (calm conditions)
fog weather icon
Dense Fog (lingering)
Lake Bohinj
Today · 18:00–19:00
🌫️Fog Probability:100%
High
fog weather icon
Dense Fog (lingering)
Lake Bohinj
Tomorrow · 08:00–10:00
🌫️Fog Probability:100%
High
fog weather icon
Dense Fog (lingering)
Lake Bohinj
Tomorrow · 14:00–16:00
🌫️Fog Probability:100%
High
fog weather icon
Dense Fog (lingering)
Lake Bohinj
Tomorrow · 20:00–21:00
🌫️Fog Probability:100%
High
fog weather icon
Dense Fog (lingering)
Lake Bohinj
Tue, Feb 10 · 02:00–06:00
🌫️Fog Probability:100%
High
fog weather icon
Dense Fog (lingering) at Sunrise
Lake Bohinj
Tue, Feb 10 · 06:00–08:00
🌫️Fog Probability:100%
High
+3 more windows in the next 10 days

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
17matching hours in the next 72 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
Sun, Feb 8
07:000%0.8°C24134m0.91m/s
08:000%1°C24135m1.2m/s
09:000%1°C24134m0.91m/s
10:000%1.3°C11998m1m/s
11:000%1.5°C11602m1m/s
12:000%1.6°C11604m0.75m/s
13:000%1.7°C11604m0.4m/s
14:000%1.5°C11603m0.45m/s
15:000%1.6°C11626m0.29m/s
16:000%1°C12297m0.48m/s
17:00100%0.5°C1216m0.9m/s
18:00100%0.4°C814m1.2m/s
19:0067%0.3°C23677m1.4m/s
20:0064%0.6°C24135m1.4m/s
21:0060%0.8°C24134m1.2m/s
22:0064%0.7°C24134m1.1m/s
23:0064%0.5°C24135m1.1m/s
Mon, Feb 9
24:0067%0.4°C22693m1m/s
01:0067%0.5°C20359m1m/s
02:0064%0.6°C20560m1.1m/s
03:0067%0.5°C21027m1.2m/s
04:0032%0.6°C20384m1.1m/s
05:0058%0.3°C204m1.3m/s
06:0063%0.2°C97m1.3m/s
07:0063%0.1°C70m1.3m/s
08:00100%0.2°C54m1.4m/s
09:00100%0.1°C50m1.4m/s
10:0055%0.1°C45m1.3m/s
11:0050%0.2°C38m1.2m/s
12:0046%0.5°C362m1.3m/s
13:0050%0.2°C96m1.1m/s
14:00100%0.2°C78m0.98m/s
15:00100%0.2°C77m1m/s
16:0063%0.1°C87m1.1m/s
17:0063%0.1°C72m1.1m/s
18:0058%0.4°C128m1.2m/s
19:000%0.3°C189m1.3m/s
20:00100%0.1°C70m1.2m/s
21:0063%0.1°C52m1.2m/s
22:0063%0°C48m1.1m/s
23:0063%0.1°C54m0.99m/s
Tue, Feb 10
24:0063%0.1°C49m0.82m/s
01:0063%0.1°C47m0.78m/s
02:00100%0.1°C46m0.76m/s
03:00100%0.1°C43m0.53m/s
04:00100%0.1°C73m0.58m/s
05:00100%0.2°C118m0.62m/s
06:00100%0.1°C69m0.79m/s
07:00100%0.2°C73m0.8m/s
08:00100%0.2°C85m0.69m/s
09:00100%0.2°C95m0.71m/s
10:00100%0.3°C80m0.72m/s
11:00100%0.2°C51m0.77m/s
12:0050%0.2°C42m0.82m/s
13:0050%0.2°C54m1m/s
14:0031%0.9°C8081m1.3m/s
15:000%1.6°C16108m1.5m/s
16:000%2.3°C24135m1.8m/s
17:000%2.3°C24135m1.8m/s
18:000%2.3°C24135m1.9m/s
19:000%2.3°C24135m1.9m/s
20:000%2.1°C21742m1.9m/s
21:000%2°C19349m1.8m/s
22:000%1.7°C16955m1.8m/s
23:000%1.5°C14821m1.8m/s
Wed, Feb 11
24:000%1.4°C12686m1.8m/s
01:000%1.2°C10551m1.8m/s
02:000%1°C8682m1.6m/s
03:0038%0.9°C6814m1.5m/s
04:0044%0.7°C4945m1.3m/s
05:0044%1°C4980m1.3m/s
06:000%1.2°C5016m1.2m/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 8 Sunrise 07:18 Sunset 17:18
08:00
0.7°C 0mm 93% 0cm 1.7°C 0mm 0.05kPa 1.1m/s
09:00
1.9°C 0mm 93% 0cm 2.9°C 0mm 0.05kPa 1.3m/s
10:00
2.3°C 0mm 91% 0cm 3.6°C 0mm 0.07kPa 1.3m/s
11:00
2.4°C 0mm 90% 0cm 3.9°C 0mm 0.08kPa 1.2m/s
12:00
2.6°C 0mm 89% 0cm 4.2°C 0mm 0.09kPa 0.91m/s
13:00
2.8°C 0mm 89% 0cm 4.5°C 0mm 0.09kPa 0.51m/s
14:00
3°C 0.01mm 90% 0cm 4.5°C 0.06mm 0.09kPa 0.6m/s
15:00
3.1°C 0mm 89% 0cm 4.7°C 0.13mm 0.09kPa 0.6m/s
16:00
3.1°C 0mm 93% 0cm 4.1°C 0.13mm 0.06kPa 0.91m/s
17:00
1.6°C 0mm 96% 0cm 2.1°C 0.13mm 0.03kPa 0.9m/s
18:00 ☾
0.6°C 0mm 97% 0cm 1°C 0.13mm 0.02kPa 1.1m/s
19:00 ☾
0.5°C 0mm 97% 0cm 0.81°C 0.13mm 0.02kPa 1.3m/s
20:00 ☾
-0.3°C 0mm 96% 0cm 0.29°C 0mm 0.03kPa 1.1m/s
21:00 ☾
-0.1°C 0mm 94% 0cm 0.7°C 0mm 0.04kPa 1.2m/s
22:00 ☾
0.4°C 0mm 95% 0cm 1.1°C 0mm 0.03kPa 1.2m/s
23:00 ☾
1.2°C 0mm 96% 0cm 1.7°C 0mm 0.02kPa 1.2m/s
Mon, Feb 9 Sunrise 07:18 Sunset 17:18
24:00 ☾
1.5°C 0mm 97% 0cm 1.9°C 0mm 0.02kPa 1.1m/s
01:00 ☾
1.6°C 0mm 97% 0cm 2.1°C 0mm 0.02kPa 1m/s
02:00 ☾
1.4°C 0.16mm 96% 0cm 2°C 0.06mm 0.03kPa 1m/s
03:00 ☾
1.3°C 0.08mm 96% 0cm 1.8°C 0.19mm 0.03kPa 1.3m/s
04:00 ☾
1.1°C 0.04mm 96% 0cm 1.7°C 0.25mm 0.03kPa 1.4m/s
05:00 ☾
1.1°C 0.05mm 98% 0cm 1.4°C 0.25mm 0.02kPa 1.8m/s
06:00 ☾
1.3°C 0.11mm 98% 0cm 1.5°C 0.38mm 0.01kPa 1.9m/s
07:00 ☾
1.4°C 0.09mm 99% 0cm 1.5°C 0.44mm 0.01kPa 2m/s
08:00
1.5°C 0.09mm 99% 0cm 1.7°C 0.06mm 0.01kPa 2.2m/s
09:00
1.7°C 0.14mm 99% 0cm 1.8°C 0.13mm 0.01kPa 2.3m/s
10:00
1.9°C 0.09mm 99% 0cm 2°C 0.25mm 0kPa 2.1m/s
11:00
2.1°C 0.06mm 99% 0cm 2.3°C 0.31mm 0.01kPa 1.9m/s
12:00
2°C 0.05mm 96% 0cm 2.5°C 0.38mm 0.03kPa 1.9m/s
13:00
2.1°C 0.07mm 99% 0cm 2.3°C 0.44mm 0.01kPa 1.8m/s
14:00
2.1°C 0.09mm 99% 0cm 2.3°C 0.06mm 0.01kPa 1.7m/s
15:00
2.2°C 0.09mm 99% 0cm 2.4°C 0.13mm 0.01kPa 1.7m/s
16:00
2.1°C 0.19mm 99% 0cm 2.2°C 0.31mm 0.01kPa 1.8m/s
17:00
1.9°C 0.22mm 100% 0cm 2°C 0.5mm 0kPa 2m/s
18:00 ☾
1.7°C 0.33mm 98% 0cm 2.1°C 0.75mm 0.02kPa 2.1m/s
19:00 ☾
1.7°C 0.33mm 98% 0cm 2°C 1mm 0.02kPa 2.1m/s
20:00 ☾
1.6°C 0.15mm 99% 0cm 1.7°C 0.19mm 0kPa 2.1m/s
21:00 ☾
1.5°C 0.07mm 99% 0cm 1.6°C 0.25mm 0kPa 1.9m/s
22:00 ☾
1.6°C 0.02mm 99% 0cm 1.6°C 0.31mm 0kPa 1.7m/s
23:00 ☾
1.5°C 0.02mm 99% 0cm 1.6°C 0.31mm 0kPa 1.7m/s
Tue, Feb 10 Sunrise 07:16 Sunset 17:20
24:00 ☾
1.5°C 0.02mm 99% 0cm 1.6°C 0.38mm 0kPa 1.4m/s
01:00 ☾
1.5°C 0.06mm 99% 0cm 1.6°C 0.38mm 0kPa 1.1m/s
02:00 ☾
1.5°C 0.04mm 99% 0cm 1.6°C 0.06mm 0kPa 1.2m/s
03:00 ☾
1.5°C 0.02mm 99% 0cm 1.6°C 0.06mm 0kPa 1m/s
04:00 ☾
1.4°C 0.04mm 99% 0.05cm 1.5°C 0.13mm 0.01kPa 1.1m/s
05:00 ☾
1.4°C 0.03mm 99% 0.04cm 1.6°C 0.19mm 0.01kPa 1.2m/s
06:00 ☾
1.4°C 0.01mm 99% 0cm 1.5°C 0.19mm 0kPa 1.3m/s
07:00 ☾
1.3°C 0mm 99% 0cm 1.5°C 0.19mm 0.01kPa 1.3m/s
08:00
1.4°C 0.01mm 99% 0cm 1.6°C 0mm 0.01kPa 1m/s
09:00
1.6°C 0.01mm 98% 0.05cm 1.8°C 0.06mm 0.01kPa 0.9m/s
10:00
1.7°C 0.03mm 98% 0.08cm 2°C 0.06mm 0.01kPa 0.8m/s
11:00
1.9°C 0.03mm 98% 0.07cm 2.1°C 0.13mm 0.01kPa 0.92m/s
12:00
2°C 0.03mm 99% 0.06cm 2.2°C 0.25mm 0.01kPa 1.2m/s
13:00
2.1°C 0.03mm 99% 0cm 2.3°C 0.31mm 0.01kPa 1.8m/s
14:00
0.7°C 0.02mm 94% 0cm 1.6°C 0.21mm 0.04kPa 1.7m/s
15:00
-0.8°C 0.02mm 89% 0cm 0.79°C 0.1mm 0.07kPa 1.5m/s
16:00
-2.3°C 0.01mm 84% 0cm 0.01°C 0mm 0.09kPa 1.4m/s
17:00
-2.4°C 0.007mm 85% 0cm -0.07°C 0mm 0.09kPa 1.6m/s
18:00 ☾
-2.4°C 0.003mm 85% 0cm -0.15°C 0mm 0.09kPa 1.8m/s
19:00 ☾
-2.5°C 0mm 85% 0cm -0.23°C 0mm 0.09kPa 2m/s
20:00 ☾
-2.3°C 0.003mm 86% 0cm -0.24°C 0mm 0.09kPa 2m/s
21:00 ☾
-2.2°C 0.007mm 87% 0cm -0.25°C 0mm 0.08kPa 2m/s
22:00 ☾
-2°C 0.01mm 88% 0cm -0.26°C 0mm 0.07kPa 2m/s
23:00 ☾
-1.6°C 0.02mm 89% 0cm -0.08°C 0.04mm 0.06kPa 2.1m/s
Wed, Feb 11 Sunrise 07:15 Sunset 17:21
24:00 ☾
-1.3°C 0.04mm 90% 0cm 0.1°C 0.08mm 0.06kPa 2.2m/s
01:00 ☾
-0.9°C 0.05mm 92% 0cm 0.29°C 0.13mm 0.05kPa 2.3m/s
02:00 ☾
-0.2°C 0.08mm 93% 0.04cm 0.83°C 0.19mm 0.05kPa 2.5m/s
03:00 ☾
0.5°C 0.1mm 94% 0.09cm 1.4°C 0.25mm 0.04kPa 2.8m/s
04:00 ☾
1.2°C 0.13mm 95% 0.13cm 1.9°C 0.31mm 0.04kPa 3m/s
05:00 ☾
1.4°C 0.1mm 93% 0.11cm 2.4°C 0.4mm 0.05kPa 2.8m/s
06:00 ☾
1.6°C 0.08mm 92% 0.08cm 2.8°C 0.48mm 0.06kPa 2.6m/s
07:00 ☾
1.8°C 0.05mm 91% 0.06cm 3.2°C 0.56mm 0.07kPa 2.4m/s
How to read: these inputs help produce the derived score; they are not requirements by themselves.

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