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Rule Fog Hunter

Alkmaar - Fog Hunter - The Netherlands

Alkmaar, North Holland, The Netherlands

Thick, moody fog for atmospheric forest and landscape shots

No opportunities right now
Here’s what usually blocks matches

No Fog Hunter opportunities in the next 14 days

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Rule requirements (key thresholds)
Fog Probability · ≥ 75.0%

Tip: Scroll down to the 72-hour table to see exactly which condition fails hour by hour.

Most common blockers (next 72 hours)
Fog Probability 100% failing

Currently

Real-time conditions
Fog Probability
0%
Dewpoint Spread9.2°C
Visibility24135 (Clear)
Relative Humidity56%
Wind Speed3.1m/s (calm conditions)

Upcoming Opportunities

When all conditions match, PhotoWeather marks an opportunity window.

Times shown in Europe/Amsterdam

No opportunities in the next 10 days

See the blocker timeline below to understand which conditions are preventing matches.

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
≥ 75.0%
Sat, May 23
15:000%
16:000%
17:000%
18:000%
19:000%
20:000%
21:000%
22:0055%
23:0055%
Sun, May 24
24:0055%
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, May 25
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, May 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%
21:000%
22:000%
23:000%
Wed, May 27
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%
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
Sun, May 24 Sunrise 05:32 Sunset 21:44
15:00
18% 12°C 0mm 56% 0cm 54° 22°C 0mm 1.1kPa 24135m 1.9m/s 3.1m/s
16:00
34% 12°C 0mm 56% 0cm 48° 22°C 0mm 1.1kPa 24135m 2m/s 3.2m/s
17:00
51% 12°C 0mm 56% 0cm 40° 21°C 0mm 1.1kPa 24134m 2.3m/s 3.4m/s
18:00
59% 12°C 0mm 57% 0cm 31° 21°C 0mm 1kPa 24134m 2.7m/s 3.3m/s
19:00
66% 12°C 0mm 61% 0cm 22° 20°C 0mm 0.92kPa 24134m 3.1m/s 3.2m/s
20:00
74% 13°C 0mm 71% 0cm 13° 18°C 0mm 0.62kPa 24134m 3.7m/s 2.8m/s
21:00
79% 12°C 0mm 74% 0cm 5° 16°C 0mm 0.47kPa 24135m 2.8m/s 2.9m/s
22:00 ☾
85% 9.9°C 0mm 73% 0cm -2.5° 15°C 0mm 0.44kPa 24134m 2.7m/s 2.7m/s
23:00 ☾
90% 10°C 0mm 77% 0cm -8.8° 14°C 0mm 0.38kPa 24135m 2.5m/s 2.5m/s
Mon, May 25 Sunrise 05:32 Sunset 21:44
24:00 ☾
91% 12°C 0mm 84% 0cm -13° 14°C 0mm 0.25kPa 24134m 2.5m/s 2.5m/s
01:00 ☾
91% 12°C 0mm 90% 0cm -16° 14°C 0mm 0.17kPa 24135m 2.7m/s 2.7m/s
02:00 ☾
92% 12°C 0mm 90% 0cm -16° 14°C 0mm 0.15kPa 24135m 2.8m/s 2.8m/s
03:00 ☾
92% 12°C 0mm 91% 0cm -14° 13°C 0mm 0.14kPa 24135m 2.8m/s 2.8m/s
04:00 ☾
91% 12°C 0mm 90% 0cm -10° 13°C 0mm 0.15kPa 24135m 2.6m/s 2.6m/s
05:00 ☾
91% 12°C 0mm 90% 0cm -4.3° 13°C 0mm 0.15kPa 24135m 2.5m/s 2.5m/s
06:00
92% 11°C 0mm 88% 0cm 3.1° 13°C 0mm 0.17kPa 24134m 2.5m/s 2.4m/s
07:00
94% 12°C 0mm 84% 0cm 11° 15°C 0mm 0.27kPa 24134m 2.6m/s 2.3m/s
08:00
95% 13°C 0mm 76% 0cm 20° 17°C 0mm 0.47kPa 24134m 2.3m/s 1.9m/s
09:00
97% 13°C 0mm 69% 0cm 29° 19°C 0mm 0.68kPa 24135m 1.7m/s 1.8m/s
10:00
98% 14°C 0mm 64% 0cm 38° 21°C 0mm 0.88kPa 24134m 1.2m/s 1.4m/s
11:00
100% 14°C 0mm 60% 0cm 46° 22°C 0mm 1.1kPa 24135m 1m/s 1.1m/s
12:00
100% 14°C 0mm 58% 0cm 53° 23°C 0mm 1.2kPa 24135m 1m/s 1.2m/s
13:00
100% 14°C 0mm 57% 0cm 58° 24°C 0mm 1.3kPa 24134m 1.2m/s 1.8m/s
14:00
100% 15°C 0mm 56% 0cm 58° 24°C 0mm 1.3kPa 24135m 1.2m/s 2.2m/s
15:00
100% 15°C 0mm 57% 0cm 55° 24°C 0mm 1.3kPa 24134m 1.4m/s 2.6m/s
16:00
100% 15°C 0mm 58% 0cm 48° 23°C 0mm 1.2kPa 24134m 1.6m/s 2.8m/s
17:00
100% 15°C 0mm 59% 0cm 40° 23°C 0mm 1.1kPa 24134m 1.7m/s 2.7m/s
18:00
100% 15°C 0mm 60% 0cm 31° 23°C 0mm 1.1kPa 24134m 1.6m/s 2.3m/s
19:00
100% 15°C 0mm 63% 0cm 22° 22°C 0mm 0.98kPa 24135m 1.6m/s 2.2m/s
20:00
100% 15°C 0mm 72% 0cm 13° 21°C 0mm 0.67kPa 24134m 2.4m/s 2.1m/s
21:00
100% 14°C 0mm 77% 0cm 5.2° 18°C 0mm 0.47kPa 24135m 2.3m/s 2.3m/s
22:00 ☾
100% 12°C 0mm 77% 0cm -2.3° 16°C 0mm 0.41kPa 24134m 2.2m/s 2.2m/s
23:00 ☾
100% 11°C 0mm 76% 0cm -8.7° 16°C 0mm 0.43kPa 24135m 1.9m/s 1.9m/s
Tue, May 26 Sunrise 05:31 Sunset 21:45
24:00 ☾
100% 11°C 0mm 75% 0cm -13° 15°C 0mm 0.44kPa 24134m 1.7m/s 1.7m/s
01:00 ☾
99% 11°C 0mm 74% 0cm -16° 15°C 0mm 0.45kPa 24134m 1.7m/s 1.7m/s
02:00 ☾
99% 11°C 0mm 74% 0cm -16° 15°C 0mm 0.45kPa 24135m 2m/s 2m/s
03:00 ☾
99% 11°C 0mm 75% 0cm -14° 15°C 0mm 0.42kPa 24134m 2.2m/s 2.2m/s
04:00 ☾
100% 11°C 0mm 78% 0cm -10° 15°C 0mm 0.38kPa 24135m 2.4m/s 2.4m/s
05:00 ☾
100% 11°C 0mm 80% 0cm -4.2° 15°C 0mm 0.33kPa 24134m 2.6m/s 2.6m/s
06:00
99% 12°C 0mm 82% 0cm 3.2° 15°C 0mm 0.3kPa 24134m 2.4m/s 2.4m/s
07:00
99% 13°C 0mm 80% 0cm 11° 17°C 0mm 0.37kPa 24134m 2m/s 2m/s
08:00
98% 14°C 0mm 74% 0cm 20° 19°C 0mm 0.58kPa 24135m 2.3m/s 1.8m/s
09:00
99% 15°C 0mm 68% 0cm 29° 21°C 0mm 0.79kPa 24134m 2.5m/s 2.1m/s
10:00
99% 15°C 0mm 63% 0cm 38° 22°C 0mm 0.98kPa 24135m 2.7m/s 2.4m/s
11:00
100% 15°C 0mm 60% 0cm 46° 23°C 0mm 1.1kPa 24134m 2.8m/s 2.7m/s
12:00
100% 15°C 0mm 58% 0cm 53° 24°C 0mm 1.2kPa 21134m 3m/s 3.1m/s
13:00
100% 15°C 0mm 57% 0cm 58° 24°C 0mm 1.3kPa 21878m 3.1m/s 3.3m/s
14:00
100% 15°C 0mm 56% 0cm 58° 24°C 0mm 1.3kPa 24134m 3.2m/s 3.5m/s
15:00
100% 15°C 0mm 56% 0cm 55° 24°C 0mm 1.3kPa 24134m 3.3m/s 3.6m/s
16:00
100% 15°C 0mm 58% 0cm 48° 23°C 0mm 1.2kPa 24135m 3.7m/s 3.8m/s
17:00
100% 15°C 0mm 62% 0cm 40° 23°C 0mm 1.1kPa 20335m 4m/s 3.8m/s
18:00
100% 15°C 0mm 67% 0cm 32° 22°C 0mm 0.86kPa 19496m 4.3m/s 3.9m/s
19:00
100% 14°C 0mm 72% 0cm 22° 20°C 0mm 0.65kPa 24135m 4.6m/s 3.9m/s
20:00
100% 14°C 0mm 76% 0cm 14° 18°C 0mm 0.49kPa 24134m 5m/s 3.5m/s
21:00
100% 13°C 0mm 80% 0cm 5.3° 16°C 0mm 0.37kPa 24134m 6.7m/s 4.5m/s
22:00 ☾
99% 11°C 0mm 83% 0cm -2.2° 14°C 0mm 0.28kPa 24135m 8.5m/s 5.4m/s
23:00 ☾
99% 10°C 0mm 87% 0cm -8.5° 13°C 0mm 0.19kPa 24135m 10m/s 6.3m/s
Wed, May 27 Sunrise 05:29 Sunset 21:46
24:00 ☾
97% 9.8°C 0mm 83% 0cm -13° 13°C 0mm 0.25kPa 24135m 10m/s 6.5m/s
01:00 ☾
96% 9.2°C 0mm 79% 0cm -16° 13°C 0mm 0.31kPa 24135m 9.9m/s 6.7m/s
02:00 ☾
94% 8.5°C 0mm 75% 0cm -16° 13°C 0mm 0.36kPa 24135m 9.7m/s 6.9m/s
03:00 ☾
88% 8.3°C 0mm 72% 0cm -14° 13°C 0mm 0.43kPa 24135m 9.2m/s 6.8m/s
04:00 ☾
83% 8.1°C 0mm 68% 0cm -9.9° 14°C 0mm 0.51kPa 24135m 8.7m/s 6.6m/s
05:00 ☾
77% 7.8°C 0mm 64% 0cm -4° 14°C 0mm 0.59kPa 24135m 8.1m/s 6.4m/s
06:00
77% 7.8°C 0mm 63% 0cm 3.3° 15°C 0mm 0.62kPa 24135m 8.1m/s 6.4m/s
07:00
76% 7.9°C 0mm 62% 0cm 11° 15°C 0mm 0.66kPa 24135m 8.1m/s 6.5m/s
08:00
76% 7.9°C 0mm 61% 0cm 20° 16°C 0mm 0.69kPa 24135m 8m/s 6.5m/s
09:00
72% 7.8°C 0mm 61% 0cm 29° 15°C 0mm 0.68kPa 24135m 8.5m/s 6.9m/s
10:00
68% 7.7°C 0mm 61% 0cm 38° 15°C 0mm 0.66kPa 24135m 9m/s 7.2m/s
11:00
64% 7.6°C 0mm 62% 0cm 46° 15°C 0mm 0.65kPa 24135m 9.4m/s 7.6m/s
12:00
60% 7.7°C 0mm 64% 0cm 53° 14°C 0mm 0.59kPa 24135m 9.3m/s 7.5m/s
13:00
56% 7.8°C 0mm 67% 0cm 58° 14°C 0mm 0.53kPa 24135m 9.2m/s 7.4m/s
14:00
52% 7.9°C 0mm 69% 0cm 58° 13°C 0mm 0.48kPa 24135m 9.1m/s 7.2m/s
How to read: these inputs help produce the derived score; they are not requirements by themselves.

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