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Rule Fog Hunter

Giethoorn - Fog Hunter - The Netherlands

Giethoorn, Overijssel, The Netherlands

Thick, moody fog for atmospheric forest and landscape shots

Currently

Real-time conditions
Fog Probability
0%
Dewpoint Spread7.8°C
Visibility24135 (Clear)
Relative Humidity58%
Wind Speed4.2m/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
Giethoorn
Tue, Apr 14 · 22:00–23:00 · 1h window
Low confidence
30%
🌫️Fog Probability62.7%
Dewpoint Spread: 0.5°C
Visibility: 24135 (Clear)
Relative Humidity: 96%
Wind Speed: 2.3m/s (calm conditions)

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 92 hours
AND logic: all conditions required
Meets requirement
Misses requirement
Time
Europe/Amsterdam
Fog Probability
≥ 60.0%
Wed, Apr 8
06:000%
07:000%
08:000%
09:000%
10:000%
11:000%
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14:000%
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22:000%
23:000%
Thu, Apr 9
24:000%
01:000%
02:000%
03:000%
04:000%
05:000%
06:000%
07:000%
08:000%
09:000%
10:000%
11:000%
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23:0011%
Fri, Apr 10
24:000%
01:000%
02:000%
03:000%
04:000%
05:000%
06:000%
07:000%
08:000%
09:000%
10:000%
11:000%
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23:000%
Sat, Apr 11
24:000%
01:000%
02:000%
03:000%
04:000%
05:000%
06:000%
07:000%
08:000%
09:000%
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20:000%
21:000%
22:0019%
23:0037%
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 06:51 Sunset 20:23
04:00 ☾
0% 0.3°C 0mm 58% 0cm -23° 8.1°C 0mm 0.46kPa 24135m 9.5m/s 4.2m/s
05:00 ☾
0% 0.3°C 0mm 63% 0cm -16° 6.9°C 0mm 0.37kPa 24135m 9.3m/s 4.2m/s
06:00 ☾
0% 0.3°C 0mm 62% 0cm -8.2° 7°C 0mm 0.38kPa 24135m 9.2m/s 4.1m/s
07:00
0% 0.2°C 0mm 63% 0cm 0.86° 6.8°C 0mm 0.37kPa 24134m 8.8m/s 4m/s
08:00
0% 1.3°C 0mm 65% 0cm 9.6° 7.4°C 0mm 0.36kPa 24134m 9.4m/s 4.3m/s
09:00
0% 2.7°C 0mm 66% 0cm 19° 8.7°C 0mm 0.39kPa 24134m 9.6m/s 4.7m/s
10:00
0% 3.1°C 0mm 61% 0cm 27° 10°C 0mm 0.49kPa 24135m 8.8m/s 5.5m/s
11:00
0% 3.9°C 0mm 57% 0cm 35° 12°C 0mm 0.61kPa 24134m 8.3m/s 5.9m/s
12:00
0% 5.2°C 0mm 56% 0cm 41° 14°C 0mm 0.7kPa 24135m 8m/s 6m/s
13:00
0% 6.5°C 0mm 54% 0cm 44° 16°C 0mm 0.81kPa 24135m 8m/s 6.4m/s
14:00
0% 7.5°C 0mm 54% 0cm 45° 17°C 0mm 0.88kPa 24135m 7.3m/s 6m/s
15:00
3% 8.2°C 0mm 53% 0cm 42° 18°C 0mm 0.98kPa 24135m 6.6m/s 5.6m/s
16:00
5% 8.7°C 0mm 51% 0cm 36° 19°C 0.13mm 1.1kPa 24134m 6.3m/s 4.8m/s
17:00
8% 11°C 0mm 57% 0cm 29° 19°C 0.13mm 0.95kPa 24135m 5.8m/s 3.8m/s
18:00
5% 12°C 0mm 63% 0cm 21° 19°C 0.19mm 0.79kPa 22394m 6m/s 3.6m/s
19:00
3% 13°C 0mm 78% 0cm 12° 17°C 0.88mm 0.42kPa 12099m 3.9m/s 2.3m/s
20:00
0% 12°C 0mm 89% 0cm 3° 14°C 1.8mm 0.17kPa 21263m 5.6m/s 2.3m/s
21:00 ☾
0% 11°C 0mm 91% 0cm -5.9° 12°C 0.06mm 0.12kPa 23907m 2.3m/s 2.2m/s
22:00 ☾
0% 10°C 0.06mm 91% 0cm -14° 12°C 0.06mm 0.12kPa 24134m 4m/s 2.5m/s
23:00 ☾
0% 11°C 0.17mm 94% 0cm -21° 12°C 0.25mm 0.09kPa 23878m 7m/s 3.7m/s
Fri, Apr 10 Sunrise 06:51 Sunset 20:23
24:00 ☾
0% 10°C 0.07mm 96% 0cm -26° 11°C 1.1mm 0.06kPa 23488m 10m/s 6.2m/s
01:00 ☾
0% 8.3°C 0.24mm 95% 0cm -29° 9.1°C 1.6mm 0.06kPa 21416m 12m/s 6.3m/s
02:00 ☾
0% 6.8°C 0mm 89% 0cm -29° 8.4°C 1.6mm 0.12kPa 24135m 12m/s 6.2m/s
03:00 ☾
11% 6.8°C 0mm 91% 0cm -27° 8.2°C 0mm 0.1kPa 24134m 11m/s 6.4m/s
04:00 ☾
22% 6.2°C 0mm 90% 0cm -22° 7.8°C 0mm 0.11kPa 24134m 11m/s 5.4m/s
05:00 ☾
33% 5°C 0mm 89% 0cm -16° 6.7°C 0mm 0.11kPa 24135m 13m/s 6.7m/s
06:00 ☾
32% 4.1°C 0mm 86% 0cm -7.8° 6.2°C 0mm 0.13kPa 24134m 12m/s 5.3m/s
07:00
31% 3.8°C 0mm 88% 0cm 1.2° 5.7°C 0mm 0.11kPa 24134m 10m/s 4.2m/s
08:00
30% 3.7°C 0mm 86% 0cm 9.9° 5.9°C 0mm 0.13kPa 24135m 8.6m/s 3.5m/s
09:00
23% 3.6°C 0mm 79% 0cm 19° 6.9°C 0mm 0.21kPa 24134m 7m/s 3.5m/s
10:00
15% 3.5°C 0mm 74% 0cm 27° 7.8°C 0mm 0.28kPa 24134m 5.6m/s 3.9m/s
11:00
8% 3.2°C 0mm 68% 0cm 35° 8.8°C 0mm 0.36kPa 24135m 4m/s 3.1m/s
12:00
7% 3°C 0mm 64% 0cm 41° 9.5°C 0.06mm 0.43kPa 24033m 4m/s 3.4m/s
13:00
7% 2.6°C 0mm 62% 0cm 45° 9.5°C 0.06mm 0.45kPa 24134m 3m/s 3m/s
14:00
6% 2.1°C 0mm 59% 0cm 45° 9.8°C 0.06mm 0.5kPa 23687m 1.9m/s 1.7m/s
15:00
17% 2.1°C 0mm 56% 0cm 42° 10°C 0mm 0.55kPa 23087m 2m/s 2.1m/s
16:00
29% 2.6°C 0mm 59% 0cm 37° 10°C 0.06mm 0.51kPa 24134m 2.3m/s 3.3m/s
17:00
40% 2.7°C 0mm 63% 0cm 29° 9.3°C 0.06mm 0.43kPa 24134m 2.6m/s 3m/s
18:00
40% 2.8°C 0mm 63% 0cm 21° 9.4°C 0.06mm 0.43kPa 24134m 1.5m/s 1.5m/s
19:00
40% 3.2°C 0mm 67% 0cm 12° 9.1°C 0.06mm 0.38kPa 24135m 0.82m/s 0.82m/s
20:00
40% 3.2°C 0mm 75% 0cm 3.2° 7.3°C 0.06mm 0.25kPa 24135m 1.9m/s 1.9m/s
21:00 ☾
32% 2.9°C 0mm 78% 0cm -5.7° 6.4°C 0mm 0.21kPa 24135m 2.5m/s 2.6m/s
22:00 ☾
23% 3°C 0mm 82% 0cm -14° 5.7°C 0mm 0.16kPa 24134m 4.3m/s 3m/s
23:00 ☾
15% 2.9°C 0mm 83% 0cm -21° 5.6°C 0mm 0.15kPa 24135m 5.3m/s 3.1m/s
Sat, Apr 11 Sunrise 06:49 Sunset 20:25
24:00 ☾
10% 2.6°C 0mm 82% 0cm -26° 5.5°C 0mm 0.17kPa 24134m 6.9m/s 3.4m/s
01:00 ☾
6% 2.2°C 0mm 78% 0cm -29° 5.8°C 0mm 0.21kPa 24135m 9m/s 4.1m/s
02:00 ☾
1% 2°C 0mm 76% 0cm -29° 5.9°C 0mm 0.22kPa 24134m 11m/s 4.7m/s
03:00 ☾
1% 2.2°C 0mm 79% 0cm -26° 5.5°C 0mm 0.19kPa 24134m 11m/s 4.8m/s
04:00 ☾
1% 2.3°C 0mm 80% 0cm -22° 5.5°C 0mm 0.18kPa 24134m 11m/s 4.7m/s
05:00 ☾
1% 2°C 0mm 79% 0cm -15° 5.4°C 0mm 0.19kPa 24135m 12m/s 5m/s
06:00 ☾
1% 1.5°C 0mm 74% 0cm -7.5° 5.8°C 0mm 0.24kPa 24135m 12m/s 5.2m/s
07:00
1% 1.3°C 0mm 73% 0cm 1.5° 5.8°C 0mm 0.25kPa 24135m 12m/s 5.5m/s
08:00
1% 1.9°C 0mm 72% 0cm 10° 6.7°C 0mm 0.28kPa 24135m 13m/s 5.9m/s
09:00
2% 5°C 0.14mm 73% 0cm 19° 9.5°C 0.23mm 0.32kPa 20371m 12m/s 5.9m/s
10:00
4% 8.1°C 0.29mm 75% 0cm 28° 12°C 0.46mm 0.36kPa 16606m 12m/s 5.9m/s
11:00
5% 11°C 0.43mm 77% 0cm 35° 15°C 0.69mm 0.4kPa 12842m 11m/s 6m/s
12:00
5% 10°C 0.49mm 82% 0cm 42° 13°C 2.8mm 0.27kPa 15952m 12m/s 5.7m/s
13:00
5% 9.4°C 0.56mm 87% 0cm 45° 11°C 4.9mm 0.17kPa 19062m 12m/s 5.5m/s
14:00
5% 8.3°C 0.62mm 92% 0cm 45° 9.5°C 6.9mm 0.09kPa 22172m 12m/s 5.3m/s
15:00
9% 7.8°C 0.55mm 92% 0cm 43° 9.1°C 5.5mm 0.09kPa 21265m 11m/s 5.4m/s
16:00
12% 7.3°C 0.49mm 92% 0cm 37° 8.6°C 4.1mm 0.1kPa 20358m 11m/s 5.6m/s
17:00
16% 6.8°C 0.42mm 91% 0cm 30° 8.2°C 2.8mm 0.1kPa 19451m 10m/s 5.7m/s
18:00
11% 6.1°C 0.28mm 91% 0cm 21° 7.4°C 2.8mm 0.09kPa 21012m 8.9m/s 4.6m/s
19:00
7% 5.3°C 0.14mm 91% 0cm 12° 6.7°C 2.8mm 0.09kPa 22574m 7.5m/s 3.6m/s
20:00
2% 4.5°C 0mm 91% 0cm 3.5° 5.9°C 2.9mm 0.08kPa 24135m 6.1m/s 2.5m/s
21:00 ☾
2% 4.5°C 0mm 92% 0cm -5.4° 5.6°C 1.9mm 0.07kPa 24135m 6.4m/s 2.7m/s
22:00 ☾
1% 4.4°C 0mm 93% 0cm -13° 5.4°C 0.96mm 0.06kPa 24135m 6.8m/s 2.9m/s
23:00 ☾
1% 4.3°C 0mm 94% 0cm -20° 5.1°C 0mm 0.05kPa 24135m 7.1m/s 3m/s
Sun, Apr 12 Sunrise 06:47 Sunset 20:27
24:00 ☾
1% 3.9°C 0mm 91% 0cm -25° 5.2°C 0mm 0.08kPa 24135m 8.5m/s 3.4m/s
01:00 ☾
0% 3.4°C 0mm 88% 0cm -28° 5.2°C 0mm 0.11kPa 24135m 9.9m/s 3.8m/s
02:00 ☾
0% 3°C 0mm 85% 0cm -28° 5.3°C 0mm 0.13kPa 24135m 11m/s 4.1m/s
03:00 ☾
2% 3.1°C 0mm 78% 0cm -26° 6.6°C 0mm 0.21kPa 24135m 10m/s 4.7m/s
How to read: these inputs help produce the derived score; they are not requirements by themselves.

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