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Rule Fog Hunter

Passo Giau - Fog Hunter - Dolomites

Cortina d'Ampezzo, Veneto, Italy

Thick, moody fog for atmospheric forest and landscape shots

Currently

Real-time conditions
Fog Probability
100%
Dewpoint Spread0.3°C
Visibility120 (Dense fog)
Relative Humidity98%
Wind Speed1.3m/s (calm conditions)

Upcoming Opportunities

When all conditions match, PhotoWeather marks an opportunity window.

Times shown in Europe/Rome
fog weather icon
Next opportunity
Dense Fog
Passo Giau
Today · 01:00–05:00 · 4h window
High confidence
99%
🌫️Fog Probability98.5-100%
Dewpoint Spread: 0.4°C
Visibility: 603 (Fog)
Relative Humidity: 97%
Wind Speed: 1.4m/s (calm conditions)
fog weather icon
Dense Fog at Sunrise
Passo Giau
Today · 05:00–06:00
🌫️Fog Probability:100%
High

What this forecast looks for

Plain-language explanation from the rule

This forecast tracks the dramatic conditions that make the Dolomites one of the world's most photogenic mountain ranges. We combine fog probability, cloud cover, and visibility data to predict when alpenglow, valley fog, and dramatic weather create ideal shooting conditions.

The Dolomites' distinctive pale limestone peaks catch sunrise and sunset light in ways no other mountains can match. These UNESCO World Heritage mountains rise dramatically from green alpine meadows and fairy-tale valleys, creating compositions that have drawn photographers for generations.

What makes the Dolomites special for photography:

  • Alpenglow - Pale limestone turns pink, orange, and gold at sunrise and sunset
  • Valley fog - Temperature inversions create ethereal mist in the valleys while peaks glow above
  • Iconic locations - Tre Cime, Seceda, and Santa Maddalena church are bucket-list compositions
  • Alpine meadows - Alpe di Siusi offers Europe's largest high-altitude meadow with mountain backdrops

Best conditions occur at dawn and dusk, with valley fog most reliable in autumn. The Dolomites' vertical relief means conditions can vary dramatically between valley and summit—our forecast helps you choose the right elevation for the best conditions.

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72-hour requirements breakdown

What passed or failed, hour by hour
5matching hours in the next 95 hoursJump to next match
AND logic: all conditions required
Meets requirement
Misses requirement
Time
Europe/Rome
Fog Probability
≥ 75.0%
Tue, May 12
22:000%
23:000%
Wed, May 13
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%
22:0055%
23:0060%
Thu, May 14
24:0067%
01:0099%
02:00100%
03:00100%
04:00100%
05:00100%
06:0069%
07:0068%
08:0060%
09:0053%
10:0054%
11:0054%
12:0041%
13:000%
14:000%
15:000%
16:000%
17:000%
18:000%
19:000%
20:000%
21:000%
22:000%
23:000%
Fri, May 15
24:000%
01:000%
02:000%
03:000%
04:000%
05:000%
06:000%
07:000%
08:000%
09:0054%
10:0055%
11:000%
12:000%
13:000%
14:000%
15:0055%
16:000%
17:000%
18:000%
19:000%
20:000%
21:000%
22:000%
23:000%
Sat, May 16
24:000%
01:000%
02:000%
03:000%
04:0042%
05:0069%
06:0042%
07:0051%
08:000%
09:000%
10:000%
11:000%
12:000%
13:000%
14:000%
15:000%
16:0024%
17:0044%
18:0044%
19:0048%
20:0055%
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/Rome
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
Thu, May 14 Sunrise 05:39 Sunset 20:37
04:00 ☾
0% 0.2°C 0.03mm 98% 0cm -14° 0.5°C 0.13mm 0.01kPa 120m 1.7m/s 1.3m/s
05:00 ☾
0% 0.2°C 0.08mm 98% 0.09cm -6.5° 0.44°C 0.19mm 0.01kPa 74m 2m/s 1.4m/s
06:00
0% 0.3°C 0.1mm 99% 0.11cm 2.7° 0.47°C 0.25mm 0.01kPa 39m 2.1m/s 1.5m/s
07:00
0% 0.6°C 0.12mm 99% 0.14cm 12° 0.78°C 0.44mm 0.01kPa 28m 2m/s 1.6m/s
08:00
0% 0.9°C 0.13mm 99% 0.2cm 22° 1.1°C 0.63mm 0.01kPa 25m 2m/s 1.6m/s
09:00
0% 0.8°C 0.14mm 98% 0.21cm 33° 1.1°C 0.25mm 0.01kPa 32m 2.2m/s 1.8m/s
10:00
0% 1.3°C 0.29mm 98% 0.38cm 43° 1.6°C 0.56mm 0.01kPa 26m 2.7m/s 2.1m/s
11:00
0% 1.4°C 0.09mm 98% 0.21cm 52° 1.7°C 0.81mm 0.02kPa 28m 2.8m/s 2m/s
12:00
0% 1.1°C 0mm 94% 0.14cm 59° 1.9°C 0.94mm 0.04kPa 99m 2.7m/s 1.9m/s
13:00
0% 0.8°C 0.45mm 90% 0.57cm 62° 2.2°C 1.2mm 0.07kPa 3450m 2.7m/s 2m/s
14:00
0% 1.1°C 2mm 97% 2.1cm 60° 1.4°C 2.5mm 0.02kPa 492m 2.7m/s 2.2m/s
15:00
0% 1.2°C 1.9mm 99% 1.9cm 54° 1.3°C 2.1mm 0.01kPa 28m 2.5m/s 2m/s
16:00
0% 1°C 1.6mm 99% 1.7cm 45° 1.1°C 4.2mm 0kPa 27m 1.5m/s 1.3m/s
17:00
0% 1.3°C 0.24mm 99% 0.26cm 35° 1.3°C 5mm 0kPa 27m 2m/s 1.7m/s
18:00
0% 1.1°C 0.27mm 100% 0.3cm 25° 1.2°C 5.2mm 0kPa 26m 1.9m/s 1.6m/s
19:00
0% 0.6°C 1.2mm 100% 1.2cm 15° 0.62°C 5.9mm 0kPa 24m 1.4m/s 1.3m/s
20:00
0% 0.3°C 1.5mm 100% 1.5cm 5.1° 0.34°C 7.2mm 0kPa 24m 1.8m/s 1.5m/s
21:00 ☾
0% 0°C 2.1mm 100% 2.1cm -4.1° 0.08°C 1.9mm 0kPa 25m 1.8m/s 1.3m/s
22:00 ☾
0% 0°C 2.2mm 100% 2.2cm -12° -0.02°C 4.5mm 0kPa 27m 1.4m/s 0.89m/s
23:00 ☾
0% -0.3°C 2.6mm 100% 2.6cm -19° -0.23°C 7.3mm 0kPa 40m 2.1m/s 1.4m/s
Fri, May 15 Sunrise 05:39 Sunset 20:37
24:00 ☾
0% -0.9°C 2.6mm 99% 2.7cm -23° -0.84°C 10mm 0kPa 66m 3m/s 2m/s
01:00 ☾
0% -1.4°C 3.2mm 99% 3.3cm -25° -1.3°C 13mm 0kPa 85m 2.3m/s 1.4m/s
02:00 ☾
0% -1.6°C 3.2mm 99% 3.2cm -24° -1.5°C 16mm 0kPa 99m 2.3m/s 1.4m/s
03:00 ☾
0% -1.8°C 1.6mm 99% 1.6cm -20° -1.7°C 2.4mm 0kPa 118m 2m/s 1.3m/s
04:00 ☾
1% -2°C 2.6mm 99% 2.6cm -14° -1.8°C 3.8mm 0.01kPa 126m 2.3m/s 1.3m/s
05:00 ☾
1% -1.9°C 3mm 99% 3cm -6.3° -1.8°C 7.3mm 0.01kPa 182m 2.3m/s 1.3m/s
06:00
1% -1.9°C 0.13mm 98% 0.13cm 2.8° -1.7°C 8.4mm 0.01kPa 806m 2.8m/s 1.7m/s
07:00
0% -1.6°C 0.43mm 98% 0.43cm 12° -1.3°C 8.6mm 0.01kPa 285m 1.7m/s 1m/s
08:00
0% -1°C 0.47mm 98% 0.47cm 22° -0.65°C 9.1mm 0.01kPa 218m 1.4m/s 0.83m/s
09:00
0% 0°C 0.5mm 100% 0.52cm 33° 0.05°C 0.38mm 0kPa 162m 1.2m/s 0.82m/s
10:00
0% 0.5°C 0.69mm 100% 0.73cm 43° 0.45°C 0.94mm 0kPa 94m 0.91m/s 0.63m/s
11:00
0% 0.7°C 0.65mm 100% 0.72cm 52° 0.74°C 1.7mm 0kPa 49m 0.9m/s 0.98m/s
12:00
0% 0.9°C 0.32mm 100% 0cm 59° 0.94°C 2.4mm 0kPa 36m 1.6m/s 1.3m/s
13:00
0% 1.3°C 0.13mm 100% 0.31cm 62° 1.3°C 2.8mm 0kPa 26m 3.1m/s 1.9m/s
14:00
0% 1.5°C 0.36mm 100% 0.65cm 60° 1.5°C 3.3mm 0kPa 34m 3m/s 1.9m/s
15:00
0% 1.2°C 0.74mm 100% 0.84cm 54° 1.2°C 0.81mm 0kPa 32m 2.5m/s 1.7m/s
16:00
0% 1.1°C 1.1mm 100% 1.1cm 45° 1.1°C 1.8mm 0kPa 28m 2.1m/s 1.3m/s
17:00
0% 0.7°C 0.88mm 100% 0.9cm 35° 0.73°C 2.7mm 0kPa 25m 2.1m/s 1.4m/s
18:00
0% 0.5°C 0.72mm 100% 0.8cm 25° 0.46°C 3.6mm 0kPa 25m 2.5m/s 1.6m/s
19:00
0% 0.1°C 0.6mm 100% 0.61cm 15° 0.16°C 4.3mm 0kPa 30m 2.8m/s 1.6m/s
20:00
0% 0°C 0.61mm 100% 0.62cm 5.3° 0.05°C 5mm 0kPa 34m 2.1m/s 1.2m/s
21:00 ☾
0% -0.1°C 1mm 100% 1cm -3.9° -0.1°C 0.69mm 0kPa 38m 1.2m/s 0.62m/s
22:00 ☾
0% -0.2°C 0.39mm 100% 0.39cm -12° -0.14°C 1.4mm 0kPa 36m 0.53m/s 0.2m/s
23:00 ☾
0% 0°C 0.18mm 100% 0cm -18° 0.02°C 1.8mm 0kPa 61m 0.91m/s 0.61m/s
Sat, May 16 Sunrise 05:38 Sunset 20:38
24:00 ☾
0% 0°C 0.1mm 100% 0cm -23° 0.08°C 1.9mm 0kPa 79m 1m/s 0.64m/s
01:00 ☾
0% -0.1°C 0.03mm 99% 0cm -24° 0.001°C 2mm 0kPa 129m 1.7m/s 1.1m/s
02:00 ☾
0% -0.2°C 0.01mm 99% 0cm -23° -0.06°C 2mm 0.01kPa 341m 1.5m/s 1.1m/s
03:00 ☾
0% 0°C 0.007mm 99% 0cm -20° 0.13°C 1.4mm 0kPa 6634m 1.8m/s 1.3m/s
04:00 ☾
0% 0.3°C 0.003mm 100% 0cm -14° 0.32°C 0.71mm 0kPa 12927m 2.1m/s 1.6m/s
05:00 ☾
0% 0.5°C 0mm 100% 0cm -6.1° 0.5°C 0.06mm 0kPa 19220m 2.4m/s 1.8m/s
06:00
0% 0.9°C 0mm 100% 0.23cm 3° 0.93°C 0.44mm 0kPa 13467m 2.6m/s 1.9m/s
07:00
0% 1.4°C 0mm 100% 0.46cm 13° 1.4°C 0.81mm 0kPa 7714m 2.8m/s 2m/s
08:00
0% 1.8°C 0mm 100% 0.69cm 23° 1.8°C 1.2mm 0kPa 1961m 3m/s 2.2m/s
09:00
1% 1.5°C 0.04mm 100% 0.46cm 33° 1.5°C 1.3mm 0kPa 1414m 3.3m/s 2.2m/s
10:00
1% 1.2°C 0.09mm 100% 0.23cm 43° 1.2°C 1.4mm 0kPa 868m 3.5m/s 2.3m/s
11:00
2% 0.9°C 0.13mm 100% 0cm 52° 0.9°C 1.4mm 0kPa 322m 3.8m/s 2.3m/s
12:00
2% 0.3°C 0.09mm 99% 0cm 59° 0.5°C 1.6mm 0.01kPa 8259m 3.9m/s 2.5m/s
13:00
2% -0.2°C 0.05mm 98% 0cm 63° 0.1°C 1.7mm 0.01kPa 16197m 4.1m/s 2.6m/s
14:00
2% -0.8°C 0.01mm 97% 0cm 61° -0.3°C 1.8mm 0.02kPa 24135m 4.2m/s 2.7m/s
15:00
1% -2°C 0.007mm 97% 0cm 54° -1.5°C 1.2mm 0.02kPa 24135m 3.9m/s 2.8m/s
16:00
1% -3.2°C 0.003mm 97% 0cm 46° -2.7°C 0.6mm 0.02kPa 24135m 3.7m/s 2.8m/s
17:00
0% -4.4°C 0mm 97% 0cm 36° -4°C 0mm 0.02kPa 24135m 3.4m/s 2.8m/s
18:00
0% -5.1°C 0mm 97% 0cm 25° -4.7°C 0mm 0.01kPa 22308m 3.1m/s 2.8m/s
19:00
1% -5.8°C 0mm 97% 0cm 15° -5.4°C 0mm 0.01kPa 20481m 2.9m/s 2.7m/s
20:00
1% -6.5°C 0mm 97% 0cm 5.5° -6.1°C 0mm 0.01kPa 18653m 2.6m/s 2.7m/s
21:00 ☾
8% -6.8°C 0mm 96% 0cm -3.7° -6.3°C 0mm 0.01kPa 20481m 2.6m/s 2.6m/s
22:00 ☾
15% -7.2°C 0mm 96% 0cm -12° -6.6°C 0mm 0.02kPa 22308m 2.6m/s 2.6m/s
23:00 ☾
22% -7.5°C 0mm 95% 0cm -18° -6.9°C 0mm 0.02kPa 24135m 2.6m/s 2.6m/s
Sun, May 17 Sunrise 05:36 Sunset 20:39
24:00 ☾
23% -5.7°C 0mm 95% 0cm -22° -4.9°C 0mm 0.02kPa 24135m 2.8m/s 2.5m/s
01:00 ☾
23% -3.9°C 0mm 94% 0cm -24° -3°C 0mm 0.03kPa 24135m 2.9m/s 2.4m/s
02:00 ☾
24% -2.1°C 0mm 93% 0cm -23° -1°C 0mm 0.04kPa 24135m 3.1m/s 2.4m/s
03:00 ☾
30% -0.8°C 0mm 95% 0cm -19° -0.06°C 0mm 0.03kPa 20695m 2.6m/s 2m/s
How to read: these inputs help produce the derived score; they are not requirements by themselves.

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