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Rule Fog Hunter

Fog Hunter Forecast for Mürren, Alps

Mürren, Bern, Switzerland

Mürren clings to a high terrace opposite the Eiger, Mönch and Jungfrau, with chalet roofs and meadow lines anchoring the panoramic mountain wall.

Currently

Real-time conditions
Fog Probability
30%
Dewpoint Spread0.8°C
Visibility13925 (Clear)
Relative Humidity95%
Wind Speed1.8m/s (calm conditions)

Upcoming Opportunities

When all conditions match, PhotoWeather marks an opportunity window.

Times shown in Europe/Zurich
fog weather icon
Next opportunity
Fog at Sunset
Mürren
Today · 21:00–22:00 · 1h window
High confidence
79%
🌫️Fog Probability100%
Dewpoint Spread: 0.6°C
Visibility: 693 (Fog)
Relative Humidity: 96%
Wind Speed: 2.7m/s (calm conditions)
fog weather icon
Dense Fog
Mürren
Today · 22:00–24:00
🌫️Fog Probability:80-100%
Medium
fog weather icon
Dense Fog
Mürren
Tue, Jul 28 · 19:00–20:00
🌫️Fog Probability:79%
Medium
fog weather icon
Dense Fog at Sunset
Mürren
Tue, Jul 28 · 20:00–22:00
🌫️Fog Probability:80%
Low
fog weather icon
Dense Fog
Mürren
Tue, Jul 28 · 22:00–24:00
🌫️Fog Probability:80%
Low

How this forecast is evaluated

See which weather signals PhotoWeather uses to identify Fog Hunter conditions across Alps. The requirements and hourly values below show how those signals apply at Mürren.

Explore Fog Hunter conditions across Alps →

Recorded match history

Completed PhotoWeather forecast matches recorded for this exact rule at Mürren during the last 365 days.

Last 30 days
7
recorded matching windows · 57% average confidence
Last 90 days
54
recorded matching windows · 70% average confidence
Last 365 days
54
recorded matching windows · 70% average confidence
Most frequent recorded start hour

22:00 local time, shared by 10 of 54 matches recorded in the last 365 days.

Most represented month

May, with 29 of 54 matches recorded in the last 365 days.

These figures use completed PhotoWeather MatchEvent records from the previous 365 days only. They describe recorded forecast matches, not observations, climatological probability, or a guarantee of future conditions.

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92-hour requirements breakdown

When available, the detailed table below covers only the stated 92-hour horizon (typically 72–168 hours, depending on available hourly data). Opportunity records above span the next 14 days, so this table does not explain that entire 14-day period.

What passed or failed, hour by hour
8matching hours in the next 92 hoursJump to next match
AND logic: all conditions required
Meets requirement
Misses requirement
Time
Europe/Zurich
Fog Probability
≥ 75.0%
Sat, Jul 25
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%
21:0068%
22:0067%
23:000%
Sun, Jul 26
24:000%
01:000%
02:000%
03:0033%
04:0030%
05:0033%
06:0030%
07:000%
08:000%
09:0039%
10:0039%
11:000%
12:000%
13:000%
14:000%
15:0051%
16:0040%
17:000%
18:000%
19:000%
20:0048%
21:00100%
22:00100%
23:0080%
Mon, Jul 27
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%
21:0069%
22:000%
23:000%
Tue, Jul 28
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%
17:0069%
18:0069%
19:0079%
20:0080%
21:0080%
22:0080%
23:0080%
Wed, Jul 29
24:000%
01:000%
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/Zurich
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
Sun, Jul 26 Sunrise 06:02 Sunset 21:07
04:00 ☾
0% 5.7°C 0.08mm 95% 0cm -16° 6.5°C 0.38mm 0.05kPa 13925m 1.6m/s 1.8m/s
05:00 ☾
0% 5.4°C 0mm 95% 0cm -9.4° 6.1°C 0.5mm 0.05kPa 10865m 1.1m/s 1.1m/s
06:00 ☾
0% 5.1°C 0mm 95% 0cm -0.82° 5.9°C 0.63mm 0.05kPa 20197m 0.51m/s 0.17m/s
07:00
0% 5.4°C 0.23mm 94% 0cm 8.3° 6.3°C 0.81mm 0.05kPa 11087m 1m/s 0.92m/s
08:00
0% 5.4°C 0.15mm 94% 0cm 18° 6.4°C 1.1mm 0.06kPa 8508m 1.5m/s 1.4m/s
09:00
1% 5.4°C 0.26mm 93% 0cm 28° 6.5°C 0.31mm 0.07kPa 361m 1.9m/s 1.7m/s
10:00
1% 5.6°C 0.24mm 92% 0cm 39° 6.9°C 0.81mm 0.08kPa 326m 2m/s 2m/s
11:00
2% 5.9°C 0.06mm 93% 0cm 48° 7°C 1.2mm 0.07kPa 363m 1.8m/s 1.8m/s
12:00
1% 5.8°C 0.09mm 93% 0cm 57° 6.8°C 1.5mm 0.07kPa 238m 1.7m/s 1.8m/s
13:00
1% 5.8°C 0.64mm 96% 0cm 62° 6.4°C 2.1mm 0.04kPa 178m 2.3m/s 2.3m/s
14:00
0% 5.8°C 0.59mm 97% 0cm 62° 6.3°C 3mm 0.03kPa 217m 2.4m/s 2.3m/s
15:00
1% 5.7°C 0.5mm 96% 0cm 58° 6.3°C 0.56mm 0.04kPa 200m 2.3m/s 2.3m/s
16:00
1% 5.2°C 0.02mm 94% 0cm 50° 6.1°C 0.81mm 0.05kPa 281m 1.8m/s 1.7m/s
17:00
2% 5°C 0mm 92% 0cm 40° 6.2°C 0.88mm 0.07kPa 13799m 1.7m/s 1.3m/s
18:00
2% 5.3°C 0mm 89% 0cm 30° 7°C 0.88mm 0.11kPa 13797m 2.4m/s 2.2m/s
19:00
2% 5.5°C 0mm 88% 0cm 20° 7.4°C 0.88mm 0.12kPa 13797m 2.5m/s 2.3m/s
20:00
2% 5.5°C 0mm 91% 0cm 9.8° 6.8°C 0.94mm 0.08kPa 401m 2.7m/s 2.4m/s
21:00
23% 4.7°C 0mm 96% 0cm 0.72° 5.3°C 0.06mm 0.04kPa 693m 2.8m/s 2.7m/s
22:00 ☾
45% 4.6°C 0mm 95% 0cm -8.2° 5.3°C 0.06mm 0.04kPa 314m 2.5m/s 2.3m/s
23:00 ☾
66% 4.6°C 0mm 94% 0cm -15° 5.5°C 0.13mm 0.05kPa 602m 2.1m/s 1.7m/s
Mon, Jul 27 Sunrise 06:02 Sunset 21:07
24:00 ☾
67% 3.1°C 0mm 92% 0cm -21° 4.3°C 0.13mm 0.06kPa 13802m 2.1m/s 1.2m/s
01:00 ☾
68% 1.5°C 0mm 91% 0cm -24° 2.8°C 0.13mm 0.07kPa 13844m 1.8m/s 1.2m/s
02:00 ☾
69% 0.7°C 0mm 88% 0cm -24° 2.4°C 0.13mm 0.08kPa 14525m 1.9m/s 1.3m/s
03:00 ☾
67% 0.1°C 0mm 84% 0cm -21° 2.5°C 0mm 0.12kPa 24135m 1.9m/s 1.5m/s
04:00 ☾
66% -0.2°C 0mm 84% 0cm -17° 2.2°C 0mm 0.11kPa 24135m 1.9m/s 1.7m/s
05:00 ☾
64% -0.2°C 0mm 85% 0cm -9.6° 2.1°C 0mm 0.11kPa 24135m 2m/s 2m/s
06:00 ☾
64% 0°C 0mm 87% 0cm -1° 2°C 0mm 0.09kPa 24134m 2m/s 2m/s
07:00
65% 1.3°C 0mm 88% 0cm 8.2° 3.2°C 0mm 0.09kPa 24134m 1.8m/s 1.6m/s
08:00
65% 2.9°C 0mm 84% 0cm 18° 5.3°C 0mm 0.14kPa 24134m 2.3m/s 2m/s
09:00
61% 3.7°C 0mm 81% 0cm 28° 6.7°C 0mm 0.18kPa 13812m 2.5m/s 2.3m/s
10:00
57% 4.2°C 0.01mm 80% 0cm 39° 7.5°C 0mm 0.21kPa 13792m 2.5m/s 2.4m/s
11:00
53% 4.5°C 0mm 76% 0cm 48° 8.5°C 0mm 0.27kPa 13797m 2.2m/s 2.2m/s
12:00
40% 4.4°C 0mm 70% 0cm 56° 9.5°C 0mm 0.35kPa 13832m 2.1m/s 2.2m/s
13:00
26% 4.6°C 0mm 67% 0cm 62° 11°C 0mm 0.42kPa 13858m 2.2m/s 2.4m/s
14:00
13% 5.1°C 0mm 65% 0cm 62° 11°C 0mm 0.46kPa 13852m 2.3m/s 2.7m/s
15:00
9% 5.6°C 0mm 66% 0cm 58° 12°C 0mm 0.47kPa 13857m 2.6m/s 3m/s
16:00
4% 5.7°C 0mm 67% 0cm 50° 12°C 0mm 0.46kPa 13872m 2.5m/s 3m/s
17:00
0% 5.7°C 0mm 68% 0cm 40° 11°C 0mm 0.43kPa 13910m 2.6m/s 3m/s
18:00
0% 5.7°C 0mm 70% 0cm 30° 11°C 0mm 0.38kPa 13956m 2.3m/s 2.6m/s
19:00
1% 5.7°C 0mm 75% 0cm 20° 10°C 0mm 0.31kPa 14460m 2.2m/s 2.4m/s
20:00
1% 6.1°C 0mm 85% 0cm 9.7° 8.6°C 0mm 0.17kPa 24135m 2.3m/s 2.3m/s
21:00
9% 4.9°C 0mm 92% 0cm 0.56° 6.1°C 0mm 0.07kPa 718m 2.3m/s 2.5m/s
22:00 ☾
16% 4.6°C 0mm 92% 0cm -8.4° 5.7°C 0mm 0.07kPa 10601m 2.2m/s 2.1m/s
23:00 ☾
24% 3.8°C 0mm 89% 0cm -16° 5.5°C 0mm 0.1kPa 24134m 2m/s 1.8m/s
Tue, Jul 28 Sunrise 06:03 Sunset 21:05
24:00 ☾
31% 1.8°C 0mm 81% 0cm -21° 4.8°C 0mm 0.16kPa 14011m 1.4m/s 0.72m/s
01:00 ☾
38% -0.3°C 0mm 72% 0cm -24° 4.3°C 0mm 0.23kPa 24135m 1m/s 0.73m/s
02:00 ☾
45% -1.4°C 0mm 64% 0cm -24° 4.7°C 0mm 0.31kPa 24135m 0.91m/s 0.34m/s
03:00 ☾
61% -2.4°C 0mm 59% 0cm -22° 4.9°C 0mm 0.35kPa 24134m 0.92m/s 0.23m/s
04:00 ☾
78% -2.9°C 0mm 56% 0cm -17° 5.2°C 0mm 0.39kPa 24134m 1m/s 0.57m/s
05:00 ☾
94% -3.2°C 0mm 54% 0cm -9.8° 5.3°C 0mm 0.41kPa 24135m 0.92m/s 0.59m/s
06:00 ☾
95% -3.5°C 0mm 53% 0cm -1.2° 5.4°C 0mm 0.42kPa 24134m 1.1m/s 0.5m/s
07:00
97% -3.2°C 0mm 47% 0cm 8° 7.5°C 0mm 0.55kPa 24135m 1m/s 0.71m/s
08:00
98% 0.5°C 0mm 48% 0cm 18° 11°C 0mm 0.67kPa 24134m 0.8m/s 0.79m/s
09:00
99% 2.9°C 0mm 52% 0cm 28° 13°C 0mm 0.71kPa 20702m 0.8m/s 0.71m/s
10:00
99% 5.2°C 0mm 55% 0cm 38° 14°C 0mm 0.74kPa 17269m 0.8m/s 0.63m/s
11:00
100% 7.6°C 0mm 58% 0cm 48° 16°C 0mm 0.76kPa 13837m 0.8m/s 0.55m/s
12:00
100% 8.5°C 0.003mm 65% 0cm 56° 15°C 0mm 0.6kPa 17269m 1.1m/s 0.98m/s
13:00
100% 9.3°C 0.007mm 72% 0cm 61° 14°C 0mm 0.45kPa 20702m 1.4m/s 1.4m/s
14:00
100% 9.9°C 0.01mm 79% 0cm 62° 13°C 0mm 0.32kPa 24135m 1.8m/s 1.8m/s
15:00
97% 9.2°C 0.007mm 84% 0cm 57° 12°C 0mm 0.22kPa 16347m 1.9m/s 1.9m/s
16:00
93% 8.4°C 0.003mm 89% 0cm 49° 10°C 0mm 0.14kPa 8559m 2m/s 1.9m/s
17:00
90% 7.6°C 0mm 94% 0cm 40° 8.5°C 0mm 0.07kPa 771m 2.1m/s 2m/s
18:00
84% 7.7°C 0mm 94% 0cm 30° 8.6°C 0mm 0.07kPa 566m 2.1m/s 2m/s
19:00
78% 7.8°C 0mm 94% 0cm 20° 8.8°C 0mm 0.07kPa 362m 2.1m/s 2m/s
20:00
72% 7.9°C 0mm 94% 0cm 9.5° 8.9°C 0mm 0.07kPa 158m 2.1m/s 2m/s
21:00
75% 7.9°C 0.003mm 93% 0cm 0.41° 9°C 0mm 0.08kPa 235m 2m/s 1.9m/s
22:00 ☾
77% 8°C 0.007mm 93% 0cm -8.6° 9.1°C 0mm 0.09kPa 313m 1.9m/s 1.9m/s
23:00 ☾
80% 8°C 0.01mm 92% 0cm -16° 9.2°C 0mm 0.09kPa 390m 1.8m/s 1.8m/s
Wed, Jul 29 Sunrise 06:04 Sunset 21:04
24:00 ☾
77% 8.2°C 0.007mm 90% 0cm -21° 9.8°C 0.04mm 0.13kPa 4860m 1.6m/s 1.7m/s
01:00 ☾
74% 8.3°C 0.003mm 87% 0cm -24° 10°C 0.08mm 0.16kPa 9329m 1.4m/s 1.6m/s
02:00 ☾
71% 8.5°C 0mm 84% 0cm -24° 11°C 0.13mm 0.21kPa 13799m 1.2m/s 1.5m/s
03:00 ☾
70% 8.6°C 0mm 80% 0cm -22° 12°C 0.35mm 0.28kPa 13023m 1.2m/s 1.3m/s
How to read: these inputs help produce the derived score; they are not requirements by themselves.

How this forecast is made

Opportunities are threshold-based signals: PhotoWeather checks whether forecast conditions match the rules for a photography scenario. They are planning guidance, not guarantees. Forecasts can change as new model runs arrive, and confidence generally decreases farther into the forecast horizon, so recheck conditions before travelling.

The weather forecast foundation comes through Open-Meteo , which aggregates models from weather agencies. PhotoWeather applies condition-specific thresholds and derived calculations; not every condition uses every model or data input.

How opportunities work → Weather data sources →
Forecast generated

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