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Rule Fog Hunter

Utrecht - Fog Hunter - The Netherlands

Utrecht, Utrecht, The Netherlands

Thick, moody fog for atmospheric forest and landscape shots

Currently

Real-time conditions
Dewpoint Spread5.0°C
Visibility24135 (Clear)
Relative Humidity71%
Wind Speed2.7m/s (calm conditions)

Upcoming Opportunities

When all conditions match, PhotoWeather marks an opportunity window.

Times shown in Europe/Amsterdam
fog weather icon
Next opportunity
Moderate Fog
Utrecht
Tue, Apr 14 · 18:00–19:00 · 1h window
Low confidence
33%
🌫️Fog Probability65.6%
Dewpoint Spread: 0.4°C
Visibility: 24135 (Clear)
Relative Humidity: 97%
Wind Speed: 2.2m/s (calm conditions)
fog weather icon
Moderate Fog at Sunset
Utrecht
Tue, Apr 14 · 19:00–21:00
🌫️Fog Probability:62.7%
Low
fog weather icon
Moderate Fog at Dusk
Utrecht
Tue, Apr 14 · 21:00–22:00
🌫️Fog Probability:74.6%
Medium
fog weather icon
Dense Fog
Utrecht
Tue, Apr 14 · 22:00–03:00
🌫️Fog Probability:83.5-88.6%
Medium

What this forecast looks for

Plain-language explanation from the rule

The Netherlands' unique below-sea-level geography creates exceptional fog conditions as the polder landscape—land reclaimed from the sea—traps cold, moist air in natural depressions. This creates persistent valley fog and radiation fog that transforms windmills and waterways into ethereal scenes.

Kinderdijk's 19 UNESCO windmills rising from morning mist create one of photography's most iconic Dutch scenes. The flat terrain and extensive water networks mean fog forms readily on calm, clear nights and can persist well into morning. Marken's historic harbor on the Markermeer lake experiences frequent sea fog rolling in from the IJsselmeer.

What makes Dutch fog photography exceptional:

  • Windmill emergence - Historic structures appearing gradually as fog lifts from polder basins
  • Canal diffusion - Amsterdam and Leiden's canals create soft, atmospheric street scenes in fog
  • Flat persistence - Lack of topography means fog lingers longer than in hilly regions
  • Autumn reliability - October-November offer most consistent radiation fog conditions

Best fog occurs on calm, clear nights following daytime warmth—typically spring and autumn. Arrive before sunrise to catch densest conditions. The polders around Kinderdijk, Zaanse Schans windmills north of Amsterdam, and the Alblasserwaard region are prime locations. Fog typically burns off by 10-11 AM as temperatures rise.

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72-hour requirements breakdown

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/Amsterdam
Fog Probability
≥ 60.0%
Wed, Apr 8
03:000%
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Thu, Apr 9
24:000%
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Fri, Apr 10
24:000%
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Sat, Apr 11
24:000%
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Sun, Apr 12
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/Amsterdam
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, Apr 9 Sunrise 06:56 Sunset 20:26
04:00
0% 3.3°C 0mm 71% 0cm -23° 8.3°C 0mm 0.32kPa 24135m 4.1m/s 2.7m/s
05:00
0% 3.9°C 0mm 74% 0cm -17° 8.3°C 0mm 0.29kPa 24135m 3.7m/s 2.5m/s
06:00
0% 4.2°C 0mm 75% 0cm -9° 8.4°C 0mm 0.28kPa 24135m 3.7m/s 2.5m/s
07:00
0% 4.6°C 0mm 78% 0cm 0.25° 8.2°C 0mm 0.24kPa 24134m 4m/s 2.7m/s
08:00
0% 5.5°C 0mm 79% 0cm 8.9°C 0mm 0.24kPa 24134m 5.1m/s 2.7m/s
09:00
1% 6.6°C 0mm 76% 0cm 18° 11°C 0mm 0.31kPa 24134m 4.7m/s 2.9m/s
10:00
1% 7.6°C 0mm 70% 0cm 27° 13°C 0mm 0.45kPa 24135m 4m/s 2.9m/s
11:00
2% 8.4°C 0mm 64% 0cm 35° 15°C 0mm 0.62kPa 24134m 4m/s 3.1m/s
12:00
2% 9.2°C 0mm 60% 0cm 41° 17°C 0mm 0.76kPa 24135m 4.4m/s 3.3m/s
13:00
2% 10°C 0mm 59% 0cm 45° 19°C 0mm 0.88kPa 24135m 4.7m/s 3.5m/s
14:00
2% 11°C 0mm 56% 0cm 45° 20°C 0mm 1kPa 24135m 4.7m/s 3.5m/s
15:00
5% 11°C 0mm 54% 0cm 43° 21°C 0mm 1.1kPa 24135m 4.9m/s 3.7m/s
16:00
8% 11°C 0mm 54% 0cm 37° 21°C 0mm 1.1kPa 24134m 5m/s 3.9m/s
17:00
11% 12°C 0mm 58% 0cm 30° 21°C 0mm 1kPa 24135m 5.6m/s 4m/s
18:00
7% 13°C 0mm 64% 0cm 22° 20°C 0mm 0.82kPa 24134m 5.1m/s 3.4m/s
19:00
4% 12°C 0mm 73% 0cm 12° 17°C 0.19mm 0.52kPa 24134m 6.4m/s 3.5m/s
20:00
0% 11°C 0mm 77% 0cm 3.5° 15°C 0.38mm 0.39kPa 24135m 5m/s 2.6m/s
21:00
0% 11°C 0mm 84% 0cm -5.6° 13°C 0.25mm 0.25kPa 24135m 4.9m/s 2.4m/s
22:00
0% 11°C 0.01mm 90% 0cm -14° 13°C 0.56mm 0.15kPa 17849m 8.1m/s 3.5m/s
23:00
0% 11°C 0mm 91% 0cm -21° 13°C 0.63mm 0.13kPa 24134m 8.3m/s 3.7m/s
Fri, Apr 10 Sunrise 06:56 Sunset 20:26
24:00
0% 8.5°C 0mm 88% 0cm -26° 10°C 0.63mm 0.14kPa 24135m 11m/s 7m/s
01:00
0% 5.9°C 0mm 80% 0cm -29° 9.2°C 0.63mm 0.23kPa 24134m 12m/s 5.2m/s
02:00
0% 5.6°C 0mm 79% 0cm -30° 9°C 0.63mm 0.24kPa 24135m 10m/s 5m/s
03:00
12% 5.6°C 0mm 84% 0cm -28° 8.2°C 0mm 0.18kPa 24134m 11m/s 5.7m/s
04:00
24% 4.7°C 0mm 81% 0cm -23° 7.8°C 0mm 0.2kPa 24134m 10m/s 5.3m/s
05:00
36% 4°C 0mm 79% 0cm -16° 7.4°C 0mm 0.22kPa 24135m 10m/s 5.1m/s
06:00
30% 3.6°C 0mm 78% 0cm -8.6° 7.2°C 0mm 0.23kPa 24134m 9.1m/s 4.5m/s
07:00
24% 3°C 0mm 77% 0cm 0.54° 6.7°C 0mm 0.22kPa 24134m 8m/s 3.7m/s
08:00
18% 2.9°C 0mm 77% 0cm 9.3° 6.7°C 0mm 0.23kPa 24135m 6.7m/s 2.8m/s
09:00
12% 2.5°C 0mm 70% 0cm 18° 7.7°C 0mm 0.32kPa 24134m 5.2m/s 3m/s
10:00
6% 2.1°C 0mm 64% 0cm 27° 8.4°C 0mm 0.39kPa 24134m 3.6m/s 2.7m/s
11:00
0% 1.8°C 0mm 60% 0cm 35° 9.2°C 0mm 0.46kPa 24135m 3.2m/s 2.4m/s
12:00
0% 1.6°C 0mm 55% 0cm 41° 10°C 0mm 0.55kPa 24135m 2.2m/s 1.9m/s
13:00
0% 1.6°C 0mm 52% 0cm 45° 11°C 0mm 0.63kPa 24134m 2.1m/s 1.9m/s
14:00
0% 1.4°C 0mm 49% 0cm 46° 12°C 0mm 0.7kPa 24134m 1.5m/s 1.6m/s
15:00
11% 1.1°C 0mm 47% 0cm 43° 12°C 0mm 0.75kPa 24134m 1.5m/s 1.6m/s
16:00
23% 1.1°C 0mm 45% 0cm 38° 13°C 0mm 0.8kPa 24134m 1.6m/s 1.6m/s
17:00
34% 1°C 0mm 45% 0cm 30° 13°C 0mm 0.8kPa 24134m 1.4m/s 1.3m/s
18:00
29% 1.5°C 0mm 48% 0cm 22° 12°C 0mm 0.74kPa 24134m 1m/s 1.1m/s
19:00
24% 3.1°C 0mm 57% 0cm 13° 11°C 0mm 0.58kPa 24135m 2.2m/s 1.3m/s
20:00
19% 3.2°C 0mm 64% 0cm 3.7° 9.6°C 0mm 0.42kPa 24135m 2.7m/s 1.5m/s
21:00
13% 2.6°C 0mm 66% 0cm -5.3° 8.7°C 0mm 0.39kPa 24135m 3m/s 1.8m/s
22:00
6% 2.1°C 0mm 67% 0cm -14° 7.8°C 0mm 0.35kPa 24134m 3.3m/s 2.1m/s
23:00
0% 1.7°C 0mm 66% 0cm -21° 7.6°C 0mm 0.35kPa 24135m 4.3m/s 2.5m/s
Sat, Apr 11 Sunrise 06:54 Sunset 20:28
24:00
0% 1.4°C 0mm 64% 0cm -26° 7.7°C 0mm 0.37kPa 24134m 8.3m/s 3.3m/s
01:00
0% 1.5°C 0mm 65% 0cm -29° 7.6°C 0mm 0.36kPa 24135m 10m/s 3.9m/s
02:00
0% 1.3°C 0mm 64% 0cm -30° 7.7°C 0mm 0.38kPa 24134m 11m/s 4.2m/s
03:00
0% 1.1°C 0mm 65% 0cm -27° 7.2°C 0mm 0.36kPa 24134m 11m/s 4.1m/s
04:00
1% 1.2°C 0mm 67% 0cm -23° 6.9°C 0mm 0.33kPa 24134m 12m/s 3.8m/s
05:00
1% 1.5°C 0mm 67% 0cm -16° 7.2°C 0mm 0.33kPa 24135m 11m/s 4m/s
06:00
1% 1.9°C 0mm 68% 0cm -8.3° 7.5°C 0mm 0.33kPa 24135m 10m/s 4.4m/s
07:00
0% 2.4°C 0mm 69% 0cm 0.83° 7.8°C 0mm 0.33kPa 24135m 10m/s 4.4m/s
08:00
0% 3.2°C 0mm 71% 0cm 9.6° 8.1°C 0mm 0.31kPa 24135m 11m/s 4.7m/s
09:00
3% 6.4°C 0.33mm 79% 0cm 19° 9.8°C 0.75mm 0.25kPa 19066m 11m/s 4.9m/s
10:00
5% 9.5°C 0.66mm 88% 0cm 28° 11°C 1.5mm 0.17kPa 13997m 11m/s 5.1m/s
11:00
8% 13°C 0.99mm 96% 0cm 35° 13°C 2.3mm 0.06kPa 8928m 11m/s 5.3m/s
12:00
7% 11°C 0.77mm 93% 0cm 42° 12°C 3mm 0.09kPa 11883m 11m/s 5.4m/s
13:00
7% 8.7°C 0.56mm 91% 0cm 46° 10°C 3.8mm 0.11kPa 14838m 12m/s 5.4m/s
14:00
6% 6.7°C 0.34mm 88% 0cm 46° 8.6°C 4.5mm 0.13kPa 17793m 12m/s 5.4m/s
15:00
7% 6.2°C 0.23mm 88% 0cm 43° 8.1°C 3.1mm 0.13kPa 19907m 10m/s 4.5m/s
16:00
7% 5.7°C 0.12mm 87% 0cm 38° 7.7°C 1.8mm 0.13kPa 22021m 8.7m/s 3.6m/s
17:00
8% 5.1°C 0.01mm 87% 0cm 31° 7.2°C 0.38mm 0.14kPa 24135m 7.1m/s 2.7m/s
18:00
6% 4.9°C 0.007mm 88% 0cm 22° 6.8°C 0.38mm 0.12kPa 24135m 7.6m/s 2.8m/s
19:00
3% 4.6°C 0.003mm 88% 0cm 13° 6.4°C 0.38mm 0.11kPa 24135m 8m/s 3m/s
20:00
1% 4.4°C 0mm 89% 0cm 3.9° 6°C 0.38mm 0.1kPa 24135m 8.4m/s 3.2m/s
21:00
1% 3.8°C 0mm 88% 0cm -5.1° 5.6°C 0.25mm 0.11kPa 24135m 9.1m/s 3.5m/s
22:00
0% 3.2°C 0mm 87% 0cm -13° 5.1°C 0.13mm 0.11kPa 24135m 9.9m/s 3.7m/s
23:00
0% 2.5°C 0mm 86% 0cm -20° 4.7°C 0mm 0.12kPa 24135m 11m/s 4m/s
Sun, Apr 12 Sunrise 06:52 Sunset 20:30
24:00
0% 2.4°C 0mm 85% 0cm -26° 4.7°C 0mm 0.13kPa 24135m 11m/s 4.3m/s
01:00
0% 2.2°C 0mm 84% 0cm -29° 4.7°C 0mm 0.14kPa 24135m 11m/s 4.5m/s
02:00
0% 2°C 0mm 82% 0cm -29° 4.7°C 0mm 0.15kPa 24135m 12m/s 4.7m/s
03:00
3% 2.5°C 0mm 78% 0cm -27° 6.1°C 0mm 0.21kPa 24135m 11m/s 5.2m/s
How to read: these inputs help produce the derived score; they are not requirements by themselves.

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