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Rule Fog Hunter

Fog Hunter Forecast for St. Moritz, Alps

Saint Moritz, Canton Grisons, Switzerland

St. Moritz overlooks the Engadin’s chain of lakes and larch-covered slopes, where frozen water and snowfields create broad minimalist winter compositions.

Currently

Real-time conditions
Fog Probability
0%
Dewpoint Spread1.3°C
Visibility24135 (Clear)
Relative Humidity92%
Wind Speed2.5m/s (calm conditions)

Upcoming Opportunities

When all conditions match, PhotoWeather marks an opportunity window.

Times shown in Europe/Zurich
fog weather icon
Next opportunity
Misty Conditions
St. Moritz
Today · 22:00–01:00 · 3h window
High confidence
85%
🌫️Fog Probability88.6-100%
Dewpoint Spread: 0.2°C
Visibility: 1152 (Mist/Haze)
Relative Humidity: 99%
Wind Speed: 2.8m/s (calm conditions)

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 St. Moritz.

Explore Fog Hunter conditions across Alps →

Recorded match history

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

Last 30 days
5
recorded matching windows · 69% average confidence
Last 90 days
35
recorded matching windows · 74% average confidence
Last 365 days
35
recorded matching windows · 74% average confidence
Most frequent recorded start hour

03:00 local time, shared by 9 of 35 matches recorded in the last 365 days.

Most represented month

June, with 17 of 35 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
3matching hours in the next 95 hoursJump to next match
AND logic: all conditions required
Meets requirement
Misses requirement
Time
Europe/Zurich
Fog Probability
≥ 75.0%
Sat, Jul 25
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%
Sun, Jul 26
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%
21:0055%
22:0089%
23:00100%
Mon, Jul 27
24:0089%
01:0060%
02:0055%
03:000%
04:000%
05:0055%
06:0055%
07:0071%
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, 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%
17:000%
18:000%
19:000%
20:000%
21:000%
22:000%
23:000%
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 05:54 Sunset 20:59
04:00 ☾
0% 5.9°C 0mm 92% 0cm -16° 7.2°C 0mm 0.09kPa 24135m 2.3m/s 2.5m/s
05:00 ☾
0% 5.7°C 0mm 94% 0cm -8.4° 6.7°C 0.06mm 0.06kPa 21544m 2.3m/s 2.5m/s
06:00
0% 5.6°C 0mm 92% 0cm 0.5° 6.9°C 0.06mm 0.08kPa 24135m 2.3m/s 2.3m/s
07:00
0% 6.1°C 0mm 88% 0cm 9.6° 7.9°C 0.13mm 0.12kPa 17890m 2.1m/s 2m/s
08:00
0% 6.4°C 0mm 86% 0cm 20° 8.6°C 0.31mm 0.15kPa 9180m 1.6m/s 1.4m/s
09:00
0% 6.7°C 0.03mm 85% 0cm 30° 9.1°C 0.44mm 0.17kPa 8157m 1.3m/s 1.1m/s
10:00
0% 6.8°C 0.01mm 82% 0cm 40° 9.8°C 1.2mm 0.22kPa 9881m 1.4m/s 1.4m/s
11:00
0% 6.9°C 0mm 81% 0cm 50° 9.9°C 2.1mm 0.23kPa 9676m 1.7m/s 1.7m/s
12:00
0% 7.2°C 0.2mm 86% 0cm 58° 9.4°C 3.1mm 0.16kPa 5406m 2.1m/s 1.9m/s
13:00
0% 7.5°C 0.76mm 91% 0cm 62° 8.9°C 4.3mm 0.1kPa 934m 2.1m/s 2.1m/s
14:00
0% 7.4°C 1.1mm 95% 0cm 62° 8.2°C 5.8mm 0.06kPa 307m 2.4m/s 2.7m/s
15:00
0% 7°C 0.99mm 97% 0cm 57° 7.5°C 1.4mm 0.03kPa 183m 2.8m/s 3m/s
16:00
0% 6.7°C 0.76mm 97% 0cm 49° 7.1°C 2.4mm 0.03kPa 263m 3m/s 3m/s
17:00
0% 6.3°C 0.08mm 95% 0cm 39° 7.1°C 2.9mm 0.05kPa 10805m 2.6m/s 2.4m/s
18:00
0% 6.2°C 0mm 91% 0cm 29° 7.6°C 2.9mm 0.09kPa 24135m 2.6m/s 2.5m/s
19:00
0% 6.1°C 0mm 88% 0cm 19° 8.1°C 2.9mm 0.13kPa 24135m 2.9m/s 2.7m/s
20:00
0% 6°C 0mm 88% 0cm 8.6° 8°C 2.9mm 0.13kPa 24134m 3.3m/s 3m/s
21:00 ☾
24% 5.4°C 0mm 95% 0cm -0.58° 6.2°C 0mm 0.05kPa 24134m 2.6m/s 2.8m/s
22:00 ☾
47% 5.3°C 0mm 98% 0cm -9.3° 5.6°C 0mm 0.02kPa 4833m 2.8m/s 2.9m/s
23:00 ☾
71% 5.3°C 0mm 99% 0cm -16° 5.5°C 0mm 0.01kPa 1152m 2.8m/s 2.8m/s
Mon, Jul 27 Sunrise 05:54 Sunset 20:59
24:00 ☾
74% 4.8°C 0mm 98% 0cm -21° 5.1°C 0mm 0.02kPa 5184m 2.9m/s 2.9m/s
01:00 ☾
76% 4.4°C 0mm 96% 0cm -24° 4.9°C 0mm 0.03kPa 11310m 2.6m/s 2.6m/s
02:00 ☾
79% 4°C 0mm 95% 0cm -24° 4.7°C 0mm 0.04kPa 24134m 2.1m/s 2.3m/s
03:00 ☾
78% 3.4°C 0mm 94% 0cm -21° 4.3°C 0mm 0.05kPa 24135m 2.2m/s 2.3m/s
04:00 ☾
78% 3.3°C 0mm 94% 0cm -16° 4.2°C 0mm 0.05kPa 24135m 2.2m/s 2.3m/s
05:00 ☾
77% 3.4°C 0mm 95% 0cm -8.6° 4.2°C 0mm 0.04kPa 24135m 2.4m/s 2.6m/s
06:00
75% 3.5°C 0mm 96% 0cm 0.35° 4°C 0mm 0.03kPa 24134m 2.6m/s 2.7m/s
07:00
73% 4.9°C 0mm 97% 0cm 9.4° 5.3°C 0mm 0.02kPa 24134m 2.8m/s 2.7m/s
08:00
71% 5.5°C 0mm 90% 0cm 19° 7°C 0mm 0.1kPa 24134m 3.2m/s 3m/s
09:00
77% 5.5°C 0mm 81% 0cm 30° 8.5°C 0mm 0.21kPa 24135m 3.3m/s 3.4m/s
10:00
84% 5.4°C 0mm 75% 0cm 40° 9.7°C 0mm 0.3kPa 24135m 3.3m/s 3.6m/s
11:00
90% 5.4°C 0mm 69% 0cm 49° 11°C 0mm 0.41kPa 24135m 2.8m/s 3.3m/s
12:00
93% 5.3°C 0mm 63% 0cm 57° 12°C 0mm 0.52kPa 24134m 2.4m/s 3.2m/s
13:00
95% 5.4°C 0mm 59% 0cm 62° 13°C 0mm 0.63kPa 24135m 2.2m/s 3.2m/s
14:00
98% 5.3°C 0mm 56% 0cm 62° 14°C 0mm 0.71kPa 24134m 2.1m/s 3.3m/s
15:00
85% 5.2°C 0mm 53% 0cm 57° 15°C 0mm 0.77kPa 24135m 2.4m/s 3.5m/s
16:00
71% 5.2°C 0mm 52% 0cm 48° 15°C 0mm 0.81kPa 24135m 2.5m/s 3.7m/s
17:00
58% 5.2°C 0mm 53% 0cm 39° 15°C 0mm 0.78kPa 24134m 2.8m/s 3.8m/s
18:00
62% 5.7°C 0mm 56% 0cm 29° 14°C 0mm 0.71kPa 24135m 3m/s 3.8m/s
19:00
66% 5.9°C 0mm 62% 0cm 18° 13°C 0mm 0.58kPa 24134m 3m/s 3.6m/s
20:00
70% 6.4°C 0mm 71% 0cm 8.4° 12°C 0mm 0.4kPa 24135m 3.7m/s 3.5m/s
21:00 ☾
77% 6°C 0mm 84% 0cm -0.81° 8.6°C 0mm 0.18kPa 24134m 2.8m/s 3.1m/s
22:00 ☾
83% 5.5°C 0mm 87% 0cm -9.5° 7.5°C 0mm 0.13kPa 24134m 2.4m/s 2.7m/s
23:00 ☾
90% 5.2°C 0mm 88% 0cm -16° 7°C 0mm 0.12kPa 24134m 2.3m/s 2.5m/s
Tue, Jul 28 Sunrise 05:55 Sunset 20:57
24:00 ☾
87% 5°C 0mm 90% 0cm -22° 6.6°C 0mm 0.1kPa 24135m 2.1m/s 2.2m/s
01:00 ☾
85% 4.8°C 0mm 90% 0cm -24° 6.2°C 0mm 0.09kPa 24135m 1.8m/s 1.9m/s
02:00 ☾
82% 4.5°C 0mm 90% 0cm -24° 5.9°C 0mm 0.09kPa 24135m 1.8m/s 1.9m/s
03:00 ☾
85% 4.1°C 0mm 90% 0cm -21° 5.7°C 0mm 0.1kPa 24134m 1.8m/s 1.9m/s
04:00 ☾
88% 3.7°C 0mm 87% 0cm -16° 5.6°C 0mm 0.11kPa 24134m 1.6m/s 1.6m/s
05:00 ☾
91% 2.8°C 0mm 82% 0cm -8.8° 5.6°C 0mm 0.16kPa 24135m 1.3m/s 1.2m/s
06:00
93% 1.8°C 0mm 77% 0cm 0.21° 5.5°C 0mm 0.21kPa 24134m 0.82m/s 0.72m/s
07:00
96% 2.9°C 0mm 70% 0cm 9.2° 8°C 0mm 0.32kPa 24135m 0.42m/s 0.36m/s
08:00
98% 2°C 0mm 53% 0cm 19° 11°C 0mm 0.63kPa 24134m 0.4m/s 0.21m/s
09:00
99% 3.8°C 0mm 51% 0cm 30° 14°C 0mm 0.78kPa 24134m 0.9m/s 0.83m/s
10:00
99% 5.5°C 0mm 48% 0cm 40° 16°C 0mm 0.96kPa 24135m 1.4m/s 1.5m/s
11:00
100% 7.2°C 0mm 46% 0cm 49° 19°C 0mm 1.2kPa 24135m 1.9m/s 2.1m/s
12:00
100% 8.6°C 0.01mm 55% 0cm 57° 18°C 0mm 0.93kPa 24135m 2.3m/s 2.4m/s
13:00
100% 9.7°C 0.02mm 63% 0cm 62° 17°C 0mm 0.7kPa 24135m 2.7m/s 2.7m/s
14:00
100% 10°C 0.03mm 72% 0cm 62° 16°C 0mm 0.5kPa 24135m 3.2m/s 3.1m/s
15:00
86% 10°C 0.02mm 78% 0cm 56° 14°C 0mm 0.36kPa 24135m 2.8m/s 2.8m/s
16:00
71% 9.8°C 0.01mm 84% 0cm 48° 13°C 0mm 0.24kPa 24135m 2.4m/s 2.4m/s
17:00
57% 9.4°C 0mm 90% 0cm 39° 11°C 0mm 0.14kPa 24135m 2m/s 2.1m/s
18:00
55% 9.1°C 0mm 90% 0cm 28° 11°C 0mm 0.13kPa 24135m 1.9m/s 2.1m/s
19:00
52% 8.9°C 0mm 91% 0cm 18° 10°C 0mm 0.12kPa 24135m 1.9m/s 2m/s
20:00
50% 8.6°C 0mm 91% 0cm 8.2° 10°C 0mm 0.11kPa 24135m 1.9m/s 1.9m/s
21:00 ☾
50% 8.3°C 0mm 91% 0cm -1° 9.7°C 0mm 0.11kPa 24135m 1.8m/s 1.9m/s
22:00 ☾
50% 8°C 0mm 91% 0cm -9.7° 9.4°C 0mm 0.1kPa 24135m 1.8m/s 1.8m/s
23:00 ☾
50% 7.7°C 0mm 91% 0cm -17° 9.1°C 0mm 0.1kPa 24135m 1.7m/s 1.8m/s
Wed, Jul 29 Sunrise 05:56 Sunset 20:56
24:00 ☾
47% 8.3°C 0mm 88% 0cm -22° 10°C 0mm 0.15kPa 24135m 1.8m/s 1.9m/s
01:00 ☾
43% 9°C 0mm 85% 0cm -24° 11°C 0mm 0.2kPa 24135m 2m/s 1.9m/s
02:00 ☾
40% 9.5°C 0mm 82% 0cm -24° 12°C 0mm 0.25kPa 24135m 2.1m/s 2m/s
03:00 ☾
44% 9.5°C 0mm 76% 0cm -21° 14°C 0.06mm 0.38kPa 24135m 2m/s 2.1m/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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