What conditions does Fog Hunter look for?

Fog Probability: ≥ 85.0%. Dewpoint Spread: ≤ 2.0°C. Visibility: ≤ 3000.0m. Wind Speed: ≤ 2.0m/s

How often do conditions match?

There are 2 upcoming opportunity windows in the next 10 days.

More Fog Hunter in Slovenian Alps

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Rule Fog Hunter

Zelenci Springs - Fog Hunter - Slovenian Alps

Kranjska Gora, Kranjska Gora, Slovenia

Thick, moody fog for atmospheric forest and landscape shots

Currently

Real-time conditions

Fog Probability

Dewpoint Spread1.9°C

Visibility11773 (Clear)

Relative Humidity87%

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) at Sunrise

Zelenci Springs

Mon, Feb 23 · 06:00–08:00 · 2h window

Medium confidence

44%

🌫️Fog Probability100%

Dewpoint Spread: 0.1°C

Visibility: 1672 (Mist/Haze)

Relative Humidity: 100%

Wind Speed: 1.5m/s (calm conditions)

Dense Fog (lingering)

Zelenci Springs

Mon, Feb 23 · 08:00–14:00

🌫️Fog Probability:86.7-100%

Low

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

2matching 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
Sun, Feb 15
02:00	100%	0°C	45m	1.6m/s
03:00	100%	0.1°C	55m	1.7m/s
04:00	100%	0.2°C	72m	2.1m/s
05:00	58%	0.4°C	136m	2.6m/s
06:00	51%	0.6°C	1383m	2.5m/s
07:00	30%	0.9°C	19324m	2.1m/s
08:00	0%	1.2°C	22107m	1.9m/s
09:00	0%	2.8°C	24134m	2m/s
10:00	0%	4.4°C	24134m	2.2m/s
11:00	0%	5.4°C	24134m	2.4m/s
12:00	0%	6.4°C	24134m	2.3m/s
13:00	0%	7.3°C	24134m	2.1m/s
14:00	0%	8.3°C	24135m	2m/s
15:00	0%	8.5°C	24135m	1.8m/s
16:00	0%	7.6°C	24135m	1.4m/s
17:00	0%	3.8°C	24134m	0.69m/s
18:00	0%	2.7°C	24134m	0.24m/s
19:00	0%	2.3°C	24134m	0.64m/s
20:00	0%	2.1°C	24134m	0.61m/s
21:00	0%	2.1°C	24134m	1m/s
22:00	0%	2.1°C	24135m	1.1m/s
23:00	0%	2°C	22658m	1.2m/s
Mon, Feb 16
24:00	0%	2.2°C	15802m	1.4m/s
01:00	0%	1.8°C	10589m	1.6m/s
02:00	0%	2.2°C	10830m	1.7m/s
03:00	0%	1.9°C	11773m	1.2m/s
04:00	0%	1.4°C	11080m	1.6m/s
05:00	0%	1°C	11462m	1.6m/s
06:00	0%	1.1°C	11972m	1.5m/s
07:00	0%	1.2°C	15525m	1.5m/s
08:00	0%	1.7°C	11128m	1.9m/s
09:00	0%	2.3°C	10725m	2m/s
10:00	0%	3°C	11195m	1.6m/s
11:00	0%	3.4°C	10702m	2.2m/s
12:00	26%	2.6°C	2720m	0.98m/s
13:00	0%	0.6°C	195m	1.5m/s
14:00	0%	0.7°C	261m	1.4m/s
15:00	0%	0.9°C	2995m	1.3m/s
16:00	0%	1.4°C	7496m	0.81m/s
17:00	0%	0.4°C	1575m	1m/s
18:00	0%	0.1°C	290m	1m/s
19:00	0%	0.3°C	1407m	0.78m/s
20:00	81%	0.6°C	5094m	0.34m/s
21:00	60%	0.8°C	17395m	0.46m/s
22:00	38%	0.8°C	8509m	1.4m/s
23:00	58%	0.5°C	576m	0.58m/s
Tue, Feb 17
24:00	58%	0.4°C	756m	0.64m/s
01:00	53%	0.4°C	1061m	1.2m/s
02:00	81%	0.6°C	7314m	1.2m/s
03:00	81%	0.6°C	7208m	0.93m/s
04:00	64%	0.7°C	22495m	0.78m/s
05:00	64%	0.6°C	19290m	0.58m/s
06:00	60%	0.8°C	23028m	1.1m/s
07:00	0%	1.3°C	24134m	1.2m/s
08:00	0%	2.5°C	24135m	1.2m/s
09:00	0%	4.8°C	24134m	1.2m/s
10:00	0%	6°C	24135m	1.7m/s
11:00	0%	6.8°C	24135m	1.6m/s
12:00	0%	7.5°C	24134m	1.6m/s
13:00	0%	8°C	24135m	1.7m/s
14:00	0%	8.2°C	23023m	1.9m/s
15:00	0%	7.9°C	23416m	1.8m/s
16:00	0%	5.9°C	24135m	1.2m/s
17:00	0%	2.8°C	24135m	1.6m/s
18:00	0%	2.4°C	24135m	2.1m/s
19:00	0%	2.5°C	24135m	1.8m/s
20:00	0%	2.6°C	24134m	1.9m/s
21:00	0%	2.5°C	24135m	2.3m/s
22:00	0%	1.9°C	24135m	2.4m/s
23:00	0%	1.4°C	24135m	2.1m/s
Wed, Feb 18
24:00	0%	1.6°C	24134m	2.4m/s
01:00	0%	1.7°C	24134m	2m/s
02:00	0%	1.3°C	24135m	1.5m/s
03:00	0%	1.2°C	24135m	1.2m/s
04:00	0%	1.2°C	24134m	0.82m/s
05:00	0%	1°C	24134m	0.45m/s
06:00	60%	0.8°C	24134m	0.3m/s
07:00	0%	1°C	20457m	0.59m/s
08:00	0%	2.3°C	18211m	0.5m/s
09:00	0%	3.8°C	15965m	0.4m/s
10:00	0%	5.5°C	13718m	0.31m/s
11:00	0%	4°C	17191m	0.75m/s
12:00	0%	2.7°C	20663m	1.2m/s
13:00	0%	1.4°C	24135m	1.6m/s
14:00	0%	1.4°C	20461m	1.6m/s
15:00	0%	1.3°C	16788m	1.6m/s
16:00	0%	1.2°C	13115m	1.6m/s
17:00	0%	1.2°C	14742m	1.5m/s
18:00	0%	1.2°C	16370m	1.4m/s
19:00	0%	1.3°C	17998m	1.4m/s
20:00	0%	1°C	12294m	1.4m/s
21:00	38%	0.9°C	6590m	1.4m/s
22:00	55%	0.8°C	886m	1.4m/s
23:00	0%	0.6°C	614m	1.2m/s
Thu, Feb 19
24:00	0%	0.3°C	342m	1m/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
Mon, Feb 16 Sunrise 07:07 Sunset 17:31
03:00 ☾	-5.1°C	0.01mm	87%	0.01cm	-3.2°C	0.06mm	0.06kPa	2.8m/s
04:00 ☾	-5.2°C	0.01mm	90%	0.01cm	-3.8°C	0.06mm	0.05kPa	2.8m/s
05:00 ☾	-4.8°C	0.01mm	93%	0cm	-3.8°C	0.06mm	0.03kPa	2.4m/s
06:00 ☾	-4.7°C	0.01mm	92%	0.01cm	-3.6°C	0.06mm	0.04kPa	2.8m/s
07:00 ☾	-4.6°C	0.01mm	91%	0cm	-3.4°C	0.13mm	0.04kPa	2.6m/s
08:00	-4.3°C	0.03mm	88%	0.03cm	-2.6°C	0mm	0.06kPa	3.2m/s
09:00	-3.5°C	0.04mm	84%	0.04cm	-1.2°C	0.06mm	0.09kPa	3.5m/s
10:00	-3.1°C	0.03mm	81%	0.03cm	-0.13°C	0.06mm	0.12kPa	2.6m/s
11:00	-2.7°C	0.05mm	78%	0.06cm	0.66°C	0.13mm	0.14kPa	3.5m/s
12:00	-2.3°C	0.31mm	83%	0.32cm	0.28°C	0.31mm	0.11kPa	1.4m/s
13:00	-1°C	1.4mm	96%	1.4cm	-0.38°C	1.3mm	0.03kPa	2.2m/s
14:00	-0.8°C	1mm	95%	1.1cm	-0.09°C	1.2mm	0.03kPa	2.2m/s
15:00	-1.1°C	0.23mm	94%	0cm	-0.21°C	1.9mm	0.04kPa	1.2m/s
16:00	-1.3°C	0.02mm	90%	0cm	0.13°C	2mm	0.06kPa	0.62m/s
17:00	-1°C	0mm	97%	0cm	-0.61°C	2mm	0.02kPa	1.3m/s
18:00 ☾	-1.9°C	0mm	99%	0cm	-1.8°C	2mm	0kPa	1.5m/s
19:00 ☾	-2.3°C	0mm	97%	0.04cm	-2°C	2mm	0.01kPa	1.2m/s
20:00 ☾	-2.4°C	0mm	96%	0.07cm	-1.8°C	0.06mm	0.02kPa	0.3m/s
21:00 ☾	-2.5°C	0mm	94%	0cm	-1.7°C	0.19mm	0.03kPa	0.91m/s
22:00 ☾	-2.8°C	0.01mm	94%	0cm	-2°C	0.38mm	0.03kPa	1.5m/s
23:00 ☾	-2.7°C	0.06mm	96%	0.23cm	-2.2°C	0.63mm	0.02kPa	1.2m/s
Tue, Feb 17 Sunrise 07:07 Sunset 17:31
24:00 ☾	-2.4°C	0mm	97%	0cm	-2°C	0.81mm	0.01kPa	1.1m/s
01:00 ☾	-2.7°C	0mm	97%	0cm	-2.3°C	0.94mm	0.01kPa	1.8m/s
02:00 ☾	-3.4°C	0.01mm	96%	0cm	-2.8°C	0mm	0.02kPa	2.1m/s
03:00 ☾	-3.6°C	0mm	96%	0cm	-3°C	0mm	0.02kPa	1.9m/s
04:00 ☾	-4.2°C	0mm	95%	0cm	-3.5°C	0mm	0.02kPa	1.7m/s
05:00 ☾	-5.5°C	0mm	96%	0cm	-4.9°C	0mm	0.02kPa	0.71m/s
06:00 ☾	-6.5°C	0mm	94%	0cm	-5.7°C	0mm	0.02kPa	1.5m/s
07:00 ☾	-7.4°C	0mm	90%	0cm	-6.1°C	0mm	0.04kPa	1.5m/s
08:00	-7.4°C	0mm	83%	0cm	-4.9°C	0mm	0.07kPa	1.9m/s
09:00	-6.6°C	0mm	70%	0cm	-1.8°C	0mm	0.16kPa	2m/s
10:00	-6.1°C	0mm	64%	0cm	-0.06°C	0mm	0.22kPa	2.4m/s
11:00	-5.5°C	0mm	60%	0cm	1.3°C	0mm	0.26kPa	2.4m/s
12:00	-5.3°C	0mm	58%	0cm	2.2°C	0mm	0.31kPa	2.3m/s
13:00	-5.3°C	0mm	56%	0cm	2.7°C	0mm	0.33kPa	2.6m/s
14:00	-5.3°C	0mm	55%	0cm	2.9°C	0mm	0.34kPa	2.6m/s
15:00	-5°C	0mm	56%	0.07cm	2.9°C	0.06mm	0.33kPa	2.8m/s
16:00	-3.5°C	0mm	65%	0cm	2.4°C	0.13mm	0.25kPa	1.9m/s
17:00	-3.5°C	0mm	81%	0cm	-0.68°C	0.13mm	0.11kPa	1.4m/s
18:00 ☾	-5.6°C	0mm	83%	0cm	-3.2°C	0.19mm	0.08kPa	1.6m/s
19:00 ☾	-6.1°C	0mm	82%	0cm	-3.6°C	0.19mm	0.08kPa	1.5m/s
20:00 ☾	-6.2°C	0mm	82%	0cm	-3.6°C	0mm	0.08kPa	1.5m/s
21:00 ☾	-6.1°C	0mm	82%	0cm	-3.6°C	0mm	0.08kPa	2.6m/s
22:00 ☾	-5.7°C	0mm	86%	0cm	-3.8°C	0mm	0.06kPa	2.7m/s
23:00 ☾	-5.3°C	0mm	90%	0cm	-3.9°C	0mm	0.05kPa	2.2m/s
Wed, Feb 18 Sunrise 07:05 Sunset 17:32
24:00 ☾	-5.5°C	0mm	89%	0cm	-3.9°C	0mm	0.05kPa	3.6m/s
01:00 ☾	-5.9°C	0mm	88%	0cm	-4.2°C	0mm	0.05kPa	3.1m/s
02:00 ☾	-6.1°C	0mm	90%	0cm	-4.8°C	0mm	0.04kPa	1.3m/s
03:00 ☾	-6°C	0mm	91%	0cm	-4.8°C	0mm	0.04kPa	1m/s
04:00 ☾	-6.3°C	0mm	91%	0cm	-5.1°C	0mm	0.04kPa	0.71m/s
05:00 ☾	-6.4°C	0mm	92%	0cm	-5.4°C	0mm	0.03kPa	0.62m/s
06:00 ☾	-6.4°C	0mm	94%	0cm	-5.6°C	0mm	0.03kPa	0.6m/s
07:00 ☾	-6.5°C	0mm	92%	0cm	-5.5°C	0mm	0.03kPa	0.63m/s
08:00	-5.1°C	0.003mm	84%	0.01cm	-2.8°C	0.04mm	0.08kPa	0.57m/s
09:00	-3.9°C	0.007mm	76%	0.02cm	-0.09°C	0.08mm	0.15kPa	0.51m/s
10:00	-2.9°C	0.01mm	67%	0.04cm	2.6°C	0.13mm	0.24kPa	0.45m/s
11:00	-2.7°C	0.007mm	75%	0.02cm	1.3°C	0.13mm	0.17kPa	0.74m/s
12:00	-2.7°C	0.003mm	82%	0.01cm	-0.03°C	0.13mm	0.11kPa	1m/s
13:00	-2.8°C	0mm	90%	0cm	-1.4°C	0.13mm	0.06kPa	1.3m/s
14:00	-2.7°C	0mm	90%	0cm	-1.3°C	0.08mm	0.05kPa	1.5m/s
15:00	-2.6°C	0mm	91%	0cm	-1.3°C	0.04mm	0.05kPa	1.6m/s
16:00	-2.5°C	0mm	91%	0cm	-1.3°C	0mm	0.05kPa	1.8m/s
17:00	-2.4°C	0.007mm	91%	0cm	-1.2°C	0mm	0.05kPa	1.8m/s
18:00 ☾	-2.3°C	0.01mm	91%	0cm	-1.1°C	0mm	0.05kPa	1.8m/s
19:00 ☾	-2.3°C	0.02mm	91%	0cm	-1°C	0mm	0.05kPa	1.7m/s
20:00 ☾	-2.1°C	0.13mm	92%	0.12cm	-1.1°C	0.19mm	0.04kPa	1.8m/s
21:00 ☾	-2°C	0.25mm	93%	0.24cm	-1.1°C	0.38mm	0.04kPa	1.9m/s
22:00 ☾	-1.9°C	0.36mm	94%	0.37cm	-1.1°C	0.56mm	0.03kPa	1.9m/s
23:00 ☾	-1.3°C	0.46mm	96%	0.47cm	-0.69°C	1.2mm	0.02kPa	2.1m/s
Thu, Feb 19 Sunrise 07:03 Sunset 17:34
24:00 ☾	-0.6°C	0.57mm	97%	0.57cm	-0.26°C	1.8mm	0.02kPa	2.2m/s
01:00 ☾	0°C	0.67mm	99%	0.68cm	0.18°C	2.4mm	0.01kPa	2.4m/s
02:00 ☾	0.3°C	1.1mm	99%	1.1cm	0.43°C	2.9mm	0.01kPa	2m/s

How to read: these inputs help produce the derived score; they are not requirements by themselves.

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