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Rule Fog Hunter

Fog Hunter Forecast for Matterhorn, Alps

Zermatt, Valais, Switzerland

The Matterhorn’s pyramid summit rises above Zermatt’s larch slopes and alpine lakes, creating clean silhouettes, reflections and warm first-light studies.

Currently

Real-time conditions
Fog Probability
0%
Dewpoint Spread4.0°C
Visibility24135 (Clear)
Relative Humidity76%
Wind Speed2.4m/s (calm conditions)

Upcoming Opportunities

When all conditions match, PhotoWeather marks an opportunity window.

Times shown in Europe/Zurich

No opportunities in the next 14 days

See which requirements block the most forecast hours below.

Most common blockers (95-hour forecast)

  • Fog Probability100% of hours

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 Matterhorn.

Explore Fog Hunter conditions across Alps →

Recorded match history

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

Last 30 days
3
recorded matching windows · 66% average confidence
Last 90 days
7
recorded matching windows · 76% average confidence
Last 365 days
32
recorded matching windows · 76% average confidence
Most frequent recorded start hour

03:00 local time, shared by 8 of 32 matches recorded in the last 365 days.

Most represented month

May, with 17 of 32 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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95-hour requirements breakdown

When available, the detailed table below covers only the stated 95-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
0matching hours in the next 95 hours
AND logic: all conditions required
Meets requirement
Misses requirement
Time
Europe/Zurich
Fog Probability
≥ 75.0%
Sat, Sep 5
23:000%
Sun, Sep 6
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%
21:000%
22:000%
23:000%
Mon, Sep 7
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%
21:000%
22:000%
23:000%
Tue, Sep 8
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%
21:000%
22:000%
23:000%
Wed, Sep 9
24:000%
01:000%
02:000%
03:000%
04:000%
05:000%
06:000%
07:000%
08:000%
09:000%
10:000%
11:0054%
12:0038%
13:0038%
14:0038%
15:0054%
16:0054%
17:0069%
18:0053%
19:0055%
20:0055%
21:000%
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, Sep 6 Sunrise 06:56 Sunset 19:58
23:00 ☾
94% 4.1°C 0mm 76% 0cm -28° 8.1°C 0mm 0.26kPa 24135m 2.3m/s 2.4m/s
Mon, Sep 7 Sunrise 06:56 Sunset 19:58
24:00 ☾
93% 3°C 0mm 72% 0cm -34° 7.9°C 0mm 0.3kPa 24135m 2.1m/s 2.1m/s
01:00 ☾
91% 1.6°C 0mm 66% 0cm -38° 7.4°C 0mm 0.35kPa 24134m 1.7m/s 1.6m/s
02:00 ☾
90% 0.7°C 0mm 64% 0cm -37° 7°C 0mm 0.36kPa 24134m 1.3m/s 1.2m/s
03:00 ☾
89% 0.1°C 0mm 62% 0cm -34° 6.9°C 0mm 0.38kPa 24135m 1.6m/s 1.6m/s
04:00 ☾
87% -0.4°C 0mm 61% 0cm -28° 6.7°C 0mm 0.39kPa 24134m 1.7m/s 1.7m/s
05:00 ☾
86% -0.7°C 0mm 60% 0cm -20° 6.3°C 0mm 0.38kPa 24134m 1.6m/s 1.6m/s
06:00 ☾
83% -0.9°C 0mm 59% 0cm -10° 6.5°C 0mm 0.4kPa 24135m 2m/s 2.2m/s
07:00
79% -1.2°C 0mm 59% 0cm 0.15° 6.4°C 0mm 0.4kPa 24135m 2.9m/s 3.4m/s
08:00
76% 1.6°C 0mm 66% 0cm 10° 7.6°C 0mm 0.35kPa 24134m 2.4m/s 2.4m/s
09:00
62% 3°C 0mm 61% 0cm 20° 10°C 0mm 0.48kPa 24134m 2.4m/s 2.4m/s
10:00
48% 2°C 0mm 50% 0cm 30° 12°C 0mm 0.7kPa 24134m 2.7m/s 2.4m/s
11:00
34% 0.9°C 0mm 44% 0cm 39° 13°C 0mm 0.83kPa 24134m 2.4m/s 2.3m/s
12:00
30% 0.9°C 0mm 42% 0cm 46° 14°C 0mm 0.9kPa 24134m 2.7m/s 2.2m/s
13:00
25% 1°C 0mm 41% 0cm 50° 14°C 0mm 0.94kPa 24134m 2.5m/s 2.1m/s
14:00
21% 1.7°C 0mm 46% 0cm 49° 13°C 0.13mm 0.81kPa 13614m 2.3m/s 2.2m/s
15:00
16% 2.5°C 0mm 50% 0cm 45° 13°C 0.19mm 0.73kPa 24135m 2.5m/s 2.2m/s
16:00
10% 2.7°C 0mm 50% 0cm 38° 13°C 0.44mm 0.75kPa 11320m 2.3m/s 2m/s
17:00
5% 2.9°C 0mm 51% 0cm 29° 13°C 0.63mm 0.73kPa 24134m 2.7m/s 2.7m/s
18:00
6% 3.5°C 0mm 57% 0cm 19° 12°C 1mm 0.59kPa 9350m 2.5m/s 2.6m/s
19:00
8% 4.7°C 0mm 66% 0cm 9.1° 11°C 1.3mm 0.43kPa 22213m 2m/s 2.1m/s
20:00 ☾
9% 3.7°C 0mm 74% 0cm -1.2° 8°C 1.4mm 0.28kPa 24134m 2m/s 2.1m/s
21:00 ☾
26% 3.2°C 0mm 75% 0cm -11° 7.3°C 0mm 0.25kPa 24134m 2m/s 1.8m/s
22:00 ☾
43% 2.8°C 0mm 74% 0cm -21° 7.3°C 0mm 0.27kPa 24134m 1.8m/s 1.5m/s
23:00 ☾
60% 2.3°C 0mm 72% 0cm -29° 6.9°C 0mm 0.27kPa 24135m 0.6m/s 0.51m/s
Tue, Sep 8 Sunrise 06:57 Sunset 19:56
24:00 ☾
61% 1.8°C 0mm 69% 0cm -35° 7.1°C 0mm 0.31kPa 24135m 2.1m/s 2.2m/s
01:00 ☾
62% 1.9°C 0mm 70% 0cm -38° 7°C 0mm 0.3kPa 24135m 2.9m/s 3.1m/s
02:00 ☾
63% 2.6°C 0mm 76% 0cm -38° 6.5°C 0mm 0.23kPa 24134m 2.8m/s 2.9m/s
03:00 ☾
71% 3°C 0mm 81% 0cm -34° 6°C 0mm 0.18kPa 24135m 2.5m/s 2.6m/s
04:00 ☾
80% 2.9°C 0mm 83% 0cm -28° 5.6°C 0mm 0.16kPa 24135m 2.3m/s 2.4m/s
05:00 ☾
88% 2.5°C 0mm 81% 0cm -20° 5.5°C 0mm 0.17kPa 24134m 2.3m/s 2.4m/s
06:00 ☾
87% 1.9°C 0mm 79% 0cm -11° 5.2°C 0mm 0.18kPa 24135m 2.2m/s 2.3m/s
07:00
87% 1.6°C 0mm 79% 0cm -0.06° 5°C 0mm 0.19kPa 24134m 2.4m/s 2.4m/s
08:00
86% 2.8°C 0mm 76% 0cm 9.9° 6.7°C 0mm 0.24kPa 24134m 2.5m/s 2.6m/s
09:00
84% 3.2°C 0mm 66% 0cm 20° 9.3°C 0mm 0.4kPa 24134m 2.5m/s 2.4m/s
10:00
81% 0.8°C 0mm 51% 0cm 30° 10°C 0mm 0.62kPa 24134m 2m/s 1.9m/s
11:00
79% -0.4°C 0mm 44% 0cm 39° 11°C 0mm 0.75kPa 24135m 2.2m/s 2m/s
12:00
78% -0.5°C 0mm 41% 0cm 45° 12°C 0mm 0.84kPa 24134m 2.2m/s 2.1m/s
13:00
78% -0.6°C 0mm 39% 0cm 49° 13°C 0mm 0.9kPa 24134m 2.5m/s 2.1m/s
14:00
77% -0.6°C 0mm 38% 0cm 49° 14°C 0mm 0.97kPa 24135m 3.3m/s 2.1m/s
15:00
59% -0.6°C 0mm 37% 0cm 45° 14°C 0.06mm 1kPa 24134m 3.9m/s 2.1m/s
16:00
40% -0.1°C 0mm 39% 0cm 38° 14°C 0.25mm 0.94kPa 24135m 3.5m/s 2.1m/s
17:00
22% 0.2°C 0mm 41% 0cm 29° 13°C 0.44mm 0.88kPa 24134m 3m/s 1.6m/s
18:00
20% 0.1°C 0mm 42% 0cm 19° 13°C 0.56mm 0.84kPa 24135m 2.3m/s 1.1m/s
19:00
18% 3.3°C 0mm 57% 0cm 8.7° 11°C 0.69mm 0.58kPa 24135m 0.74m/s 0.16m/s
20:00 ☾
16% 2.9°C 0mm 71% 0cm -1.6° 7.9°C 0.88mm 0.31kPa 24134m 2.4m/s 2.5m/s
21:00 ☾
17% 3.6°C 0.11mm 74% 0cm -12° 8.1°C 0.38mm 0.28kPa 24135m 2.6m/s 3m/s
22:00 ☾
17% 4.3°C 0.07mm 78% 0cm -21° 7.9°C 0.63mm 0.23kPa 24134m 2.4m/s 2.6m/s
23:00 ☾
18% 4.1°C 0.33mm 83% 0cm -29° 6.8°C 1.3mm 0.17kPa 19886m 1.8m/s 0.99m/s
Wed, Sep 9 Sunrise 06:58 Sunset 19:54
24:00 ☾
16% 3.6°C 0mm 81% 0cm -35° 6.6°C 1.4mm 0.19kPa 24134m 1m/s 0.45m/s
01:00 ☾
14% 3.2°C 0mm 80% 0cm -38° 6.4°C 1.4mm 0.19kPa 24135m 1.2m/s 1.2m/s
02:00 ☾
12% 2.5°C 0mm 80% 0cm -38° 5.7°C 1.4mm 0.19kPa 24135m 1.4m/s 1.4m/s
03:00 ☾
10% 1.8°C 0mm 80% 0cm -35° 5°C 0mm 0.17kPa 24134m 1.6m/s 1.7m/s
04:00 ☾
7% 1.4°C 0mm 81% 0cm -28° 4.5°C 0mm 0.16kPa 24134m 1.8m/s 1.8m/s
05:00 ☾
5% 1.6°C 0mm 82% 0cm -20° 4.5°C 0mm 0.16kPa 24135m 1.7m/s 1.7m/s
06:00 ☾
4% 2.1°C 0mm 81% 0cm -11° 5.1°C 0mm 0.16kPa 24135m 2.2m/s 2.2m/s
07:00 ☾
3% 2.7°C 0.01mm 83% 0cm -0.41° 5.4°C 0.06mm 0.15kPa 24134m 1.5m/s 1.5m/s
08:00
2% 3°C 0mm 82% 0cm 9.7° 5.9°C 0.06mm 0.17kPa 24135m 1.5m/s 1.5m/s
09:00
1% 3.8°C 0.007mm 87% 0cm 20° 5.8°C 0.23mm 0.12kPa 16101m 2.1m/s 2.1m/s
10:00
1% 4.6°C 0.01mm 93% 0cm 30° 5.7°C 0.4mm 0.06kPa 8067m 2.7m/s 2.8m/s
11:00
0% 5.4°C 0.02mm 99% 0cm 38° 5.6°C 0.56mm 0.01kPa 33m 3.2m/s 3.5m/s
12:00
0% 4.8°C 0.03mm 99% 0cm 45° 4.9°C 0.67mm 0.01kPa 37m 3.4m/s 3.5m/s
13:00
0% 4.2°C 0.03mm 99% 0cm 49° 4.3°C 0.77mm 0.01kPa 40m 3.6m/s 3.6m/s
14:00
0% 3.5°C 0.04mm 99% 0cm 49° 3.7°C 0.88mm 0.01kPa 44m 3.8m/s 3.6m/s
15:00
0% 3.4°C 0.03mm 99% 0cm 44° 3.6°C 0.6mm 0.01kPa 53m 3.5m/s 3.4m/s
16:00
0% 3.2°C 0.01mm 98% 0cm 37° 3.5°C 0.33mm 0.01kPa 62m 3.2m/s 3.2m/s
17:00
0% 3°C 0mm 98% 0cm 29° 3.4°C 0.06mm 0.02kPa 72m 2.8m/s 2.9m/s
18:00
0% 1.7°C 0mm 97% 0cm 19° 2.1°C 0.08mm 0.02kPa 8093m 2.6m/s 2.8m/s
19:00
0% 0.3°C 0mm 96% 0cm 8.4° 0.95°C 0.1mm 0.03kPa 16114m 2.4m/s 2.7m/s
20:00 ☾
0% -1°C 0mm 95% 0cm -1.9° -0.25°C 0.13mm 0.03kPa 24135m 2.2m/s 2.6m/s
21:00 ☾
0% -2.7°C 0mm 83% 0cm -12° -0.12°C 0.08mm 0.1kPa 24135m 1.8m/s 2m/s
22:00 ☾
0% -4.6°C 0mm 71% 0cm -21° 0.007°C 0.04mm 0.18kPa 24135m 1.4m/s 1.4m/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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