How often do conditions match?

There are 20 upcoming opportunity windows in the next 10 days.

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Rule Fog Hunter

Altaussee - Fog Hunter - Salzkammergut

Altaussee, Styria, Austria

Thick, moody fog for atmospheric forest and landscape shots

Currently

Real-time conditions

Fog Probability

Dewpoint Spread2.3°C

Visibility15649 (Clear)

Relative Humidity85%

Wind Speed1.5m/s (calm conditions)

Upcoming Opportunities

When all conditions match, PhotoWeather marks an opportunity window.

Times shown in Europe/Vienna

Next opportunity

Dense Fog at Sunset

Altaussee

Today · 18:00–19:00 · 1h window

High confidence

83%

🌫️Fog Probability100%

Dewpoint Spread: 0.4°C

Visibility: 383 (Fog)

Relative Humidity: 97%

Wind Speed: 1.1m/s (calm conditions)

Moderate Fog

Altaussee

Today · 19:00–01:00

🌫️Fog Probability:62.5%

Low

Dense Fog

Altaussee

Tomorrow · 02:00–05:00

🌫️Fog Probability:94.4-100%

High

Dense Fog at Sunrise

Altaussee

Tomorrow · 05:00–07:00

🌫️Fog Probability:76.4-94.4%

High

Dense Fog

Altaussee

Tomorrow · 21:00–24:00

🌫️Fog Probability:62.5-100%

Medium

Moderate Fog

Altaussee

Tue, Mar 17 · 02:00–04:00

🌫️Fog Probability:62.5%

Low

Dense Fog

Altaussee

Tue, Mar 17 · 08:00–09:00

🌫️Fog Probability:100%

High

+13 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 Austria's most iconic lakeside photography. We combine fog probability, wind speed, and visibility data to predict when mist and mirror-like reflections transform the Salzkammergut.

Hallstatt may be the world's most photographed village, with its pastel houses reflected in an alpine lake beneath towering peaks. But the wider Salzkammergut region offers equally stunning scenes at less-visited lakes, all sharing the same dramatic geography.

What makes Salzkammergut special for photography:

Lake fog - Cool nights and sheltered valleys create reliable morning mist
Mirror reflections - Calm alpine lakes produce perfect reflections of villages and peaks
Alpine backdrop - The Dachstein massif provides dramatic mountain scenery
Historic villages - Centuries-old lakeside towns offer timeless compositions

Peak fog season runs from September through November. Arrive well before dawn for the best mist at Hallstatt—the classic viewpoint fills quickly. For quieter alternatives, Gosausee offers stunning Dachstein reflections with fewer crowds. Wind is the enemy of reflections—our forecast helps you find calm mornings.

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72-hour requirements breakdown

What passed or failed, hour by hour

21matching hours in the next 80 hoursJump to next match

AND logic: all conditions required

Meets requirement

Misses requirement

Time Europe/Vienna	Fog Probability ≥ 60.0%
Sun, Mar 15
05:00	0%
06:00	0%
07:00	0%
08:00	100%
09:00	48%
10:00	32%
11:00	0%
12:00	0%
13:00	0%
14:00	0%
15:00	0%
16:00	0%
17:00	0%
18:00	100%
19:00	63%
20:00	63%
21:00	63%
22:00	63%
23:00	63%
Mon, Mar 16
24:00	63%
01:00	60%
02:00	100%
03:00	100%
04:00	94%
05:00	94%
06:00	76%
07:00	0%
08:00	0%
09:00	0%
10:00	0%
11:00	0%
12:00	0%
13:00	0%
14:00	0%
15:00	0%
16:00	0%
17:00	0%
18:00	0%
19:00	0%
20:00	0%
21:00	99%
22:00	100%
23:00	63%
Tue, Mar 17
24:00	0%
01:00	0%
02:00	63%
03:00	63%
04:00	0%
05:00	0%
06:00	0%
07:00	0%
08:00	100%
09:00	44%
10:00	44%
11:00	42%
12:00	38%
13:00	0%
14:00	0%
15:00	0%
16:00	0%
17:00	0%
18:00	83%
19:00	88%
20:00	0%
21:00	0%
22:00	0%
23:00	0%
Wed, Mar 18
24:00	0%
01:00	60%
02:00	0%
03:00	0%
04:00	0%
05:00	0%
06:00	0%
07:00	0%
08:00	0%
09:00	0%
10:00	0%
11:00	0%
12:00	0%

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/Vienna	Dew Point °C	Rainfall mm	Relative Humidity %	Snowfall cm	Temperature °C	Total Precipitation mm	Vapor Pressure Deficit kPa	Visibility m	Wind Gusts m/s	Wind Speed m/s
Sun, Mar 15 Sunrise 06:18 Sunset 18:09
14:00	-0.2°C	0.02mm	85%	0.04cm	2.1°C	0mm	0.1kPa	15649m	1m/s	1.5m/s
15:00	0°C	0.02mm	88%	0.04cm	1.8°C	0.06mm	0.08kPa	13482m	1.5m/s	1.5m/s
16:00	0.1°C	0.01mm	89%	0.03cm	1.7°C	0.06mm	0.08kPa	15157m	1.3m/s	1.4m/s
17:00	0.2°C	0.01mm	92%	0.03cm	1.4°C	0.13mm	0.05kPa	18207m	1.6m/s	1.4m/s
18:00	0.5°C	0.04mm	97%	0.06cm	0.86°C	0.19mm	0.02kPa	383m	1.4m/s	1.1m/s
19:00 ☾	0.7°C	0.12mm	99%	0.14cm	0.83°C	0.25mm	0.01kPa	60m	1.4m/s	1.2m/s
20:00 ☾	0.9°C	0.23mm	99%	0.25cm	1.1°C	0.25mm	0.01kPa	28m	1.2m/s	1m/s
21:00 ☾	0.8°C	0.07mm	99%	0.11cm	0.93°C	0.44mm	0.01kPa	48m	1.4m/s	1.1m/s
22:00 ☾	0.9°C	0.05mm	99%	0.1cm	1°C	0.5mm	0kPa	26m	1.2m/s	1m/s
23:00 ☾	0.6°C	0.04mm	99%	0.07cm	0.83°C	0.63mm	0.01kPa	51m	1.3m/s	1.1m/s
Mon, Mar 16 Sunrise 06:18 Sunset 18:09
24:00 ☾	0.6°C	0.05mm	99%	0.07cm	0.77°C	0.69mm	0.01kPa	52m	1.4m/s	1.2m/s
01:00 ☾	0.1°C	0.04mm	98%	0cm	0.36°C	0.75mm	0.01kPa	116m	1.5m/s	1.2m/s
02:00 ☾	-0.4°C	0.04mm	98%	0cm	-0.15°C	0.06mm	0.01kPa	1135m	1.4m/s	1.1m/s
03:00 ☾	-0.8°C	0.04mm	98%	0cm	-0.51°C	0.13mm	0.01kPa	1317m	1.2m/s	0.96m/s
04:00 ☾	-1.2°C	0.01mm	97%	0cm	-0.83°C	0.13mm	0.02kPa	2073m	1.2m/s	0.93m/s
05:00 ☾	-1.4°C	0.01mm	97%	0cm	-0.95°C	0.13mm	0.02kPa	4745m	1.4m/s	1m/s
06:00 ☾	-1.4°C	0.01mm	95%	0.01cm	-0.65°C	0.13mm	0.03kPa	6304m	1.4m/s	1m/s
07:00	-1.3°C	0mm	92%	0cm	-0.15°C	0.13mm	0.05kPa	24135m	1.3m/s	0.89m/s
08:00	-1.1°C	0.01mm	87%	0cm	0.85°C	0mm	0.09kPa	24134m	1.3m/s	0.98m/s
09:00	-0.7°C	0.01mm	82%	0cm	2.1°C	0mm	0.13kPa	24134m	1.3m/s	1.1m/s
10:00	-0.4°C	0mm	76%	0cm	3.4°C	0mm	0.18kPa	24135m	1.4m/s	1.2m/s
11:00	-0.2°C	0mm	70%	0cm	4.9°C	0mm	0.26kPa	24135m	2m/s	1.6m/s
12:00	-0.6°C	0mm	61%	0cm	6.3°C	0mm	0.37kPa	24134m	2.2m/s	1.4m/s
13:00	-1.9°C	0mm	53%	0cm	7.1°C	0mm	0.47kPa	24134m	3.4m/s	1.5m/s
14:00	-3.2°C	0mm	48%	0cm	7.1°C	0mm	0.53kPa	24134m	4.7m/s	2m/s
15:00	-3.8°C	0mm	46%	0cm	7°C	0mm	0.54kPa	24135m	5.5m/s	2.3m/s
16:00	-3.7°C	0mm	48%	0cm	6.5°C	0mm	0.5kPa	24134m	4.4m/s	2.3m/s
17:00	-1.5°C	0mm	61%	0cm	5.5°C	0mm	0.35kPa	24135m	2.4m/s	1.6m/s
18:00	-1.5°C	0mm	76%	0cm	2.3°C	0mm	0.18kPa	24135m	1.7m/s	1.7m/s
19:00 ☾	-0.7°C	0mm	82%	0cm	2.1°C	0mm	0.13kPa	24134m	1.3m/s	1.2m/s
20:00 ☾	-0.1°C	0mm	83%	0cm	2.4°C	0mm	0.12kPa	24134m	2.2m/s	1.5m/s
21:00 ☾	0.9°C	0.09mm	94%	0.09cm	1.7°C	0.06mm	0.04kPa	1094m	2.1m/s	1.4m/s
22:00 ☾	1.5°C	0.06mm	98%	0.07cm	1.8°C	0.13mm	0.01kPa	69m	2.5m/s	1.5m/s
23:00 ☾	1.7°C	0.51mm	98%	0.62cm	1.9°C	0.38mm	0.01kPa	43m	2.7m/s	1.3m/s
Tue, Mar 17 Sunrise 06:16 Sunset 18:11
24:00 ☾	1.4°C	0.89mm	99%	0.95cm	1.5°C	1.1mm	0.01kPa	29m	2.7m/s	1.8m/s
01:00 ☾	1.2°C	0.53mm	99%	0.56cm	1.3°C	1.8mm	0kPa	24m	2.5m/s	1.7m/s
02:00 ☾	1.1°C	0.25mm	99%	0.3cm	1.2°C	0.38mm	0kPa	23m	2.3m/s	1.6m/s
03:00 ☾	0.8°C	0.21mm	99%	0.29cm	0.93°C	0.69mm	0kPa	23m	2.3m/s	1.7m/s
04:00 ☾	0.9°C	0.26mm	99%	0.31cm	0.95°C	1mm	0kPa	23m	2.2m/s	1.6m/s
05:00 ☾	0.8°C	0.24mm	99%	0.31cm	0.89°C	1.3mm	0kPa	23m	2.3m/s	1.7m/s
06:00 ☾	0.9°C	0.26mm	99%	0.34cm	0.94°C	1.6mm	0kPa	24m	2.1m/s	1.6m/s
07:00	0.9°C	0.15mm	99%	0.21cm	0.98°C	1.9mm	0.01kPa	25m	2.1m/s	1.6m/s
08:00	0.8°C	0.07mm	98%	0.1cm	1.1°C	0.13mm	0.01kPa	43m	2m/s	1.4m/s
09:00	0.8°C	0.13mm	94%	0.19cm	1.5°C	0.25mm	0.04kPa	119m	2.1m/s	1.5m/s
10:00	1.1°C	0.09mm	94%	0.22cm	2°C	0.44mm	0.04kPa	120m	2m/s	1.4m/s
11:00	1.1°C	0.06mm	91%	0.2cm	2.4°C	0.69mm	0.06kPa	466m	2m/s	1.4m/s
12:00	1.1°C	0.03mm	86%	0.14cm	3.1°C	0.81mm	0.1kPa	948m	2.1m/s	1.4m/s
13:00	0.8°C	0.01mm	80%	0.08cm	3.9°C	0.94mm	0.16kPa	5319m	2.1m/s	1.4m/s
14:00	0.5°C	0mm	77%	0.03cm	4.3°C	0.06mm	0.19kPa	11119m	2.3m/s	1.6m/s
15:00	0.4°C	0mm	78%	0cm	4°C	0.06mm	0.18kPa	18912m	2.1m/s	1.6m/s
16:00	0.7°C	0mm	82%	0cm	3.4°C	0.13mm	0.14kPa	24134m	2.1m/s	1.5m/s
17:00	1°C	0.02mm	88%	0cm	2.7°C	0.13mm	0.09kPa	3178m	1.7m/s	1.2m/s
18:00	0.9°C	0.04mm	91%	0cm	2.2°C	0.13mm	0.06kPa	2571m	1.7m/s	1.1m/s
19:00 ☾	0.9°C	0.03mm	93%	0cm	1.9°C	0.19mm	0.05kPa	2510m	1.6m/s	1.2m/s
20:00 ☾	-0.9°C	0.02mm	90%	0cm	0.6°C	0.15mm	0.07kPa	9460m	1.5m/s	1.2m/s
21:00 ☾	-2.7°C	0.02mm	86%	0cm	-0.69°C	0.1mm	0.08kPa	16411m	1.5m/s	1.3m/s
22:00 ☾	-4.5°C	0.01mm	83%	0cm	-2°C	0.06mm	0.09kPa	23361m	1.4m/s	1.3m/s
23:00 ☾	-4.9°C	0.007mm	87%	0cm	-3°C	0.06mm	0.06kPa	23394m	1.1m/s	1.1m/s
Wed, Mar 18 Sunrise 06:14 Sunset 18:12
24:00 ☾	-5.4°C	0.003mm	91%	0cm	-4.1°C	0.06mm	0.04kPa	23427m	0.73m/s	0.81m/s
01:00 ☾	-5.9°C	0mm	95%	0cm	-5.2°C	0.06mm	0.02kPa	23459m	0.4m/s	0.56m/s
02:00 ☾	-5.3°C	0mm	83%	0cm	-2.9°C	0.04mm	0.08kPa	23685m	0.91m/s	0.88m/s
03:00 ☾	-4.9°C	0mm	72%	0cm	-0.58°C	0.02mm	0.16kPa	23910m	1.4m/s	1.2m/s
04:00 ☾	-4.9°C	0mm	61%	0cm	1.7°C	0mm	0.27kPa	24135m	1.9m/s	1.5m/s
05:00 ☾	-4.2°C	0mm	60%	0cm	2.9°C	0mm	0.3kPa	24135m	2m/s	1.7m/s
06:00 ☾	-3.4°C	0mm	59%	0cm	4°C	0mm	0.34kPa	24135m	2m/s	1.9m/s
07:00	-2.6°C	0mm	57%	0cm	5.1°C	0mm	0.37kPa	24135m	2m/s	2m/s
08:00	-2.2°C	0mm	59%	0cm	5.1°C	0mm	0.36kPa	24135m	2m/s	2m/s
09:00	-1.8°C	0mm	61%	0cm	5.2°C	0mm	0.35kPa	24135m	1.9m/s	2m/s
10:00	-1.4°C	0mm	62%	0cm	5.2°C	0mm	0.33kPa	24135m	1.8m/s	1.9m/s
11:00	-1.5°C	0mm	74%	0cm	2.7°C	0mm	0.19kPa	24135m	1.6m/s	1.6m/s
12:00	-1.9°C	0mm	86%	0cm	0.2°C	0mm	0.09kPa	24135m	1.3m/s	1.4m/s
13:00	-2.7°C	0mm	97%	0cm	-2.3°C	0mm	0.02kPa	24135m	1.1m/s	1.1m/s

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

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