Rule
Fog Hunter
Leiden - Fog Hunter - The Netherlands
Leiden, South 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 · ≥ 85.0% Dewpoint Spread · ≤ 2.0°C Visibility · ≤ 3000.0m Wind Speed · ≤ 2.0m/s
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 99% failing
Wind Speed 97% failing
Visibility 94% failing
Currently
Real-time conditionsDewpoint Spread0.5°C
Visibility6185 (Moderate)
Relative Humidity97%
Wind Speed7.6m/s (moderate winds)
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 ruleThe 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 hour0matching hours in the next 95 hours
AND logic: all conditions required
Meets requirement
Misses requirement
Time Europe/Amsterdam | Fog Probability ≥ 85.0% | Dewpoint Spread ≤ 2.0°C | Visibility ≤ 3000.0m | Wind Speed ≤ 2.0m/s |
|---|---|---|---|---|
| Sat, Feb 21 | ||||
| 20:00 | 0% | 0.5°C | 24135m | 7.4m/s |
| 21:00 | 0% | 0.4°C | 5176m | 7.5m/s |
| 22:00 | 0% | 0.3°C | 1044m | 7.7m/s |
| 23:00 | 0% | 0.4°C | 5055m | 9.3m/s |
| Sun, Feb 22 | ||||
| 24:00 | 0% | 0.3°C | 4919m | 9.7m/s |
| 01:00 | 0% | 0.3°C | 1899m | 11m/s |
| 02:00 | 0% | 0.5°C | 5121m | 9.8m/s |
| 03:00 | 0% | 0.4°C | 5329m | 9.6m/s |
| 04:00 | 0% | 0.5°C | 5865m | 9.5m/s |
| 05:00 | 0% | 0.5°C | 5674m | 9m/s |
| 06:00 | 0% | 0.5°C | 6482m | 9m/s |
| 07:00 | 0% | 0.6°C | 12529m | 8.6m/s |
| 08:00 | 0% | 0.3°C | 2373m | 8.7m/s |
| 09:00 | 0% | 0.4°C | 2722m | 9.3m/s |
| 10:00 | 0% | 0.5°C | 3931m | 10m/s |
| 11:00 | 0% | 0.5°C | 2415m | 10m/s |
| 12:00 | 0% | 0.5°C | 6310m | 10m/s |
| 13:00 | 0% | 0.7°C | 7255m | 11m/s |
| 14:00 | 0% | 0.7°C | 9886m | 9.8m/s |
| 15:00 | 0% | 0.9°C | 16018m | 9.1m/s |
| 16:00 | 0% | 0.9°C | 5503m | 8.6m/s |
| 17:00 | 0% | 0.6°C | 5208m | 7.7m/s |
| 18:00 | 0% | 0.3°C | 4885m | 7.6m/s |
| 19:00 | 0% | 0.4°C | 4909m | 7.6m/s |
| 20:00 | 0% | 0.5°C | 6185m | 7.6m/s |
| 21:00 | 0% | 0.7°C | 12117m | 8.6m/s |
| 22:00 | 0% | 1.1°C | 24135m | 9.1m/s |
| 23:00 | 0% | 1.3°C | 24135m | 8.1m/s |
| Mon, Feb 23 | ||||
| 24:00 | 0% | 1.2°C | 24135m | 8.2m/s |
| 01:00 | 0% | 0.9°C | 24135m | 8m/s |
| 02:00 | 0% | 0.7°C | 24135m | 8.2m/s |
| 03:00 | 0% | 1°C | 24135m | 8.6m/s |
| 04:00 | 0% | 1.4°C | 24135m | 9m/s |
| 05:00 | 0% | 1.6°C | 24134m | 9.2m/s |
| 06:00 | 0% | 1.6°C | 24135m | 8.9m/s |
| 07:00 | 0% | 2.1°C | 24134m | 9.3m/s |
| 08:00 | 0% | 2.5°C | 24135m | 9.7m/s |
| 09:00 | 0% | 2.6°C | 24134m | 10m/s |
| 10:00 | 0% | 2.3°C | 24135m | 10m/s |
| 11:00 | 0% | 2.8°C | 24134m | 10m/s |
| 12:00 | 0% | 2.8°C | 24134m | 9.8m/s |
| 13:00 | 0% | 2.8°C | 24135m | 10m/s |
| 14:00 | 0% | 2.9°C | 24134m | 11m/s |
| 15:00 | 0% | 2.9°C | 24135m | 10m/s |
| 16:00 | 0% | 2.8°C | 24135m | 10m/s |
| 17:00 | 0% | 2.6°C | 24134m | 9.6m/s |
| 18:00 | 0% | 2.2°C | 23476m | 8.4m/s |
| 19:00 | 0% | 1.6°C | 24134m | 7.9m/s |
| 20:00 | 0% | 0.9°C | 18291m | 7.2m/s |
| 21:00 | 0% | 0.6°C | 21360m | 6.7m/s |
| 22:00 | 0% | 0.7°C | 24037m | 6.4m/s |
| 23:00 | 19% | 0.6°C | 24135m | 5.7m/s |
| Tue, Feb 24 | ||||
| 24:00 | 22% | 0.6°C | 24134m | 5.1m/s |
| 01:00 | 22% | 0.5°C | 24135m | 4m/s |
| 02:00 | 33% | 0.4°C | 24134m | 3.8m/s |
| 03:00 | 35% | 0.2°C | 24135m | 2.7m/s |
| 04:00 | 35% | 0.3°C | 24135m | 2.2m/s |
| 05:00 | 35% | 0.3°C | 24135m | 1.8m/s |
| 06:00 | 35% | 0.3°C | 18334m | 1.9m/s |
| 07:00 | 39% | 0.2°C | 13541m | 2.3m/s |
| 08:00 | 100% | 0.1°C | 1294m | 2.5m/s |
| 09:00 | 60% | 0°C | 328m | 2.7m/s |
| 10:00 | 53% | 0.1°C | 361m | 3.1m/s |
| 11:00 | 0% | 0.1°C | 651m | 3.7m/s |
| 12:00 | 0% | 0.5°C | 12294m | 3.9m/s |
| 13:00 | 0% | 1.4°C | 4967m | 4.6m/s |
| 14:00 | 0% | 1.3°C | 4846m | 4.8m/s |
| 15:00 | 0% | 1.2°C | 6056m | 5m/s |
| 16:00 | 0% | 1.2°C | 12423m | 4.3m/s |
| 17:00 | 68% | 1°C | 13607m | 3.3m/s |
| 18:00 | 60% | 0.8°C | 24135m | 2.6m/s |
| 19:00 | 64% | 0.5°C | 24135m | 2.6m/s |
| 20:00 | 64% | 0.7°C | 24134m | 3.1m/s |
| 21:00 | 60% | 0.8°C | 24134m | 3.7m/s |
| 22:00 | 60% | 0.8°C | 24134m | 3.6m/s |
| 23:00 | 60% | 0.8°C | 24134m | 3.8m/s |
| Wed, Feb 25 | ||||
| 24:00 | 60% | 0.8°C | 24134m | 3.9m/s |
| 01:00 | 42% | 0.8°C | 24135m | 4.1m/s |
| 02:00 | 0% | 1.6°C | 24135m | 3.8m/s |
| 03:00 | 0% | 2.4°C | 24135m | 3.6m/s |
| 04:00 | 0% | 3.2°C | 24135m | 3.3m/s |
| 05:00 | 0% | 4.3°C | 24135m | 3.8m/s |
| 06:00 | 0% | 5.6°C | 24135m | 4.4m/s |
| 07:00 | 0% | 7.1°C | 24135m | 5m/s |
| 08:00 | 0% | 7.1°C | 24135m | 4.8m/s |
| 09:00 | 0% | 7.2°C | 24135m | 4.5m/s |
| 10:00 | 0% | 7.2°C | 24135m | 4.3m/s |
| 11:00 | 0% | 6°C | 24135m | 4m/s |
| 12:00 | 0% | 4.7°C | 24135m | 3.7m/s |
| 13:00 | 0% | 3.6°C | 24135m | 3.3m/s |
| 14:00 | 0% | 3°C | 24135m | 3.4m/s |
| 15:00 | 0% | 2.4°C | 24135m | 3.5m/s |
| 16:00 | 0% | 1.9°C | 24135m | 3.5m/s |
| 17:00 | 0% | 1.6°C | 24135m | 3.6m/s |
| 18:00 | 0% | 1.5°C | 24135m | 3.6m/s |
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 scoreThis 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 | Dew Point °C | Rainfall mm | Relative Humidity % | Snowfall cm | Temperature °C | Total Precipitation mm | Vapor Pressure Deficit kPa | Wind Gusts m/s |
|---|---|---|---|---|---|---|---|---|
| Sun, Feb 22
Sunrise 07:43
Sunset 18:08 | ||||||||
| 20:00 ☾ | 7.8°C | 0mm | 97% | 0cm | 8.3°C | 0.19mm | 0.03kPa | 14m/s |
| 21:00 ☾ | 7.6°C | 0mm | 96% | 0cm | 8.3°C | 0.5mm | 0.04kPa | 16m/s |
| 22:00 ☾ | 7.3°C | 0mm | 92% | 0cm | 8.4°C | 0.69mm | 0.08kPa | 16m/s |
| 23:00 ☾ | 7.1°C | 0mm | 91% | 0cm | 8.4°C | 0.69mm | 0.09kPa | 15m/s |
| Mon, Feb 23
Sunrise 07:43
Sunset 18:08 | ||||||||
| 24:00 ☾ | 7°C | 0mm | 93% | 0cm | 8.2°C | 0.69mm | 0.08kPa | 16m/s |
| 01:00 ☾ | 7°C | 0mm | 94% | 0cm | 7.9°C | 0.69mm | 0.07kPa | 16m/s |
| 02:00 ☾ | 7°C | 0mm | 95% | 0cm | 7.7°C | 0mm | 0.05kPa | 16m/s |
| 03:00 ☾ | 6.8°C | 0mm | 93% | 0cm | 7.8°C | 0mm | 0.07kPa | 16m/s |
| 04:00 ☾ | 6.4°C | 0mm | 91% | 0cm | 7.8°C | 0mm | 0.1kPa | 16m/s |
| 05:00 ☾ | 6°C | 0mm | 89% | 0cm | 7.6°C | 0mm | 0.11kPa | 16m/s |
| 06:00 ☾ | 5.9°C | 0mm | 90% | 0cm | 7.5°C | 0mm | 0.11kPa | 16m/s |
| 07:00 ☾ | 5.4°C | 0mm | 86% | 0cm | 7.5°C | 0mm | 0.14kPa | 16m/s |
| 08:00 | 5.1°C | 0mm | 84% | 0cm | 7.6°C | 0mm | 0.17kPa | 17m/s |
| 09:00 | 5.2°C | 0mm | 83% | 0cm | 7.8°C | 0mm | 0.18kPa | 17m/s |
| 10:00 | 5.6°C | 0mm | 85% | 0cm | 7.9°C | 0mm | 0.15kPa | 17m/s |
| 11:00 | 5.3°C | 0mm | 83% | 0cm | 8.1°C | 0mm | 0.19kPa | 17m/s |
| 12:00 | 5.4°C | 0mm | 83% | 0cm | 8.2°C | 0mm | 0.19kPa | 16m/s |
| 13:00 | 5.5°C | 0mm | 83% | 0cm | 8.3°C | 0mm | 0.19kPa | 17m/s |
| 14:00 | 5.6°C | 0mm | 82% | 0cm | 8.5°C | 0mm | 0.2kPa | 17m/s |
| 15:00 | 5.7°C | 0mm | 82% | 0cm | 8.6°C | 0.06mm | 0.2kPa | 17m/s |
| 16:00 | 5.8°C | 0mm | 83% | 0cm | 8.6°C | 0.19mm | 0.19kPa | 17m/s |
| 17:00 | 6°C | 0mm | 84% | 0cm | 8.6°C | 0.25mm | 0.18kPa | 17m/s |
| 18:00 | 6.1°C | 0mm | 86% | 0cm | 8.3°C | 0.38mm | 0.16kPa | 16m/s |
| 19:00 ☾ | 6.4°C | 0mm | 90% | 0cm | 8°C | 0.63mm | 0.11kPa | 15m/s |
| 20:00 ☾ | 7°C | 0mm | 94% | 0cm | 7.9°C | 0.25mm | 0.06kPa | 14m/s |
| 21:00 ☾ | 7.2°C | 0mm | 96% | 0cm | 7.8°C | 0.38mm | 0.05kPa | 13m/s |
| 22:00 ☾ | 7.1°C | 0mm | 95% | 0cm | 7.8°C | 0.5mm | 0.05kPa | 13m/s |
| 23:00 ☾ | 7°C | 0.02mm | 96% | 0cm | 7.6°C | 0.63mm | 0.04kPa | 11m/s |
| Tue, Feb 24
Sunrise 07:41
Sunset 18:10 | ||||||||
| 24:00 ☾ | 7°C | 0mm | 96% | 0cm | 7.6°C | 0.69mm | 0.04kPa | 10m/s |
| 01:00 ☾ | 7°C | 0.04mm | 97% | 0cm | 7.5°C | 0.69mm | 0.03kPa | 8.1m/s |
| 02:00 ☾ | 7.1°C | 0.2mm | 98% | 0cm | 7.5°C | 0.19mm | 0.02kPa | 7.3m/s |
| 03:00 ☾ | 7.2°C | 0.03mm | 98% | 0cm | 7.4°C | 0.31mm | 0.02kPa | 4.9m/s |
| 04:00 ☾ | 7.2°C | 0.08mm | 98% | 0cm | 7.5°C | 0.38mm | 0.02kPa | 3.5m/s |
| 05:00 ☾ | 7.4°C | 0mm | 98% | 0cm | 7.7°C | 0.38mm | 0.02kPa | 2.2m/s |
| 06:00 ☾ | 7.6°C | 0.02mm | 98% | 0cm | 7.9°C | 0.38mm | 0.02kPa | 2.4m/s |
| 07:00 ☾ | 7.8°C | 0mm | 99% | 0cm | 8°C | 0.44mm | 0.01kPa | 2.8m/s |
| 08:00 | 8°C | 0.06mm | 99% | 0cm | 8.1°C | 0mm | 0.01kPa | 3.4m/s |
| 09:00 | 8°C | 0.67mm | 100% | 0cm | 8°C | 0.38mm | 0kPa | 4m/s |
| 10:00 | 8°C | 0.78mm | 100% | 0cm | 8.1°C | 0.94mm | 0kPa | 5.8m/s |
| 11:00 | 8°C | 0.03mm | 99% | 0cm | 8.1°C | 1.4mm | 0.01kPa | 7.1m/s |
| 12:00 | 8°C | 0mm | 97% | 0cm | 8.5°C | 1.4mm | 0.03kPa | 7.5m/s |
| 13:00 | 8.2°C | 0mm | 91% | 0cm | 9.6°C | 1.4mm | 0.1kPa | 7.4m/s |
| 14:00 | 7.8°C | 0.01mm | 92% | 0cm | 9.1°C | 0mm | 0.1kPa | 7.5m/s |
| 15:00 | 7.6°C | 0.03mm | 92% | 0cm | 8.8°C | 0mm | 0.09kPa | 7.3m/s |
| 16:00 | 7.5°C | 0.02mm | 92% | 0cm | 8.7°C | 0.06mm | 0.09kPa | 6.7m/s |
| 17:00 | 7.7°C | 0.01mm | 94% | 0cm | 8.7°C | 0.06mm | 0.07kPa | 5.8m/s |
| 18:00 | 8°C | 0mm | 95% | 0cm | 8.8°C | 0.06mm | 0.06kPa | 3.4m/s |
| 19:00 ☾ | 8.2°C | 0mm | 96% | 0cm | 8.7°C | 0.06mm | 0.04kPa | 2.9m/s |
| 20:00 ☾ | 8.2°C | 0mm | 96% | 0cm | 8.9°C | 0mm | 0.05kPa | 5.3m/s |
| 21:00 ☾ | 8.3°C | 0mm | 95% | 0cm | 9.1°C | 0mm | 0.06kPa | 7.3m/s |
| 22:00 ☾ | 8.4°C | 0mm | 94% | 0cm | 9.2°C | 0mm | 0.06kPa | 6.8m/s |
| 23:00 ☾ | 8.2°C | 0mm | 95% | 0cm | 9°C | 0mm | 0.06kPa | 7.6m/s |
| Wed, Feb 25
Sunrise 07:39
Sunset 18:11 | ||||||||
| 24:00 ☾ | 8.2°C | 0mm | 95% | 0cm | 9°C | 0mm | 0.06kPa | 8.1m/s |
| 01:00 ☾ | 8.1°C | 0mm | 95% | 0cm | 8.9°C | 0mm | 0.06kPa | 8.5m/s |
| 02:00 ☾ | 7.9°C | 0mm | 90% | 0cm | 9.5°C | 0mm | 0.12kPa | 8.6m/s |
| 03:00 ☾ | 7.7°C | 0mm | 85% | 0cm | 10°C | 0mm | 0.18kPa | 8.7m/s |
| 04:00 ☾ | 7.5°C | 0mm | 81% | 0cm | 11°C | 0mm | 0.25kPa | 8.8m/s |
| 05:00 ☾ | 7.9°C | 0mm | 75% | 0cm | 12°C | 0mm | 0.36kPa | 8.6m/s |
| 06:00 ☾ | 8.2°C | 0mm | 69% | 0cm | 14°C | 0mm | 0.49kPa | 8.4m/s |
| 07:00 ☾ | 8.3°C | 0mm | 63% | 0cm | 15°C | 0mm | 0.65kPa | 8.2m/s |
| 08:00 | 8.6°C | 0mm | 63% | 0cm | 16°C | 0mm | 0.67kPa | 8.2m/s |
| 09:00 | 8.9°C | 0mm | 62% | 0cm | 16°C | 0mm | 0.68kPa | 8.2m/s |
| 10:00 | 9.2°C | 0mm | 62% | 0cm | 16°C | 0mm | 0.7kPa | 8.1m/s |
| 11:00 | 9.3°C | 0mm | 68% | 0cm | 15°C | 0mm | 0.56kPa | 8.4m/s |
| 12:00 | 9.4°C | 0mm | 73% | 0cm | 14°C | 0mm | 0.43kPa | 8.7m/s |
| 13:00 | 9.4°C | 0mm | 79% | 0cm | 13°C | 0mm | 0.32kPa | 9.1m/s |
| 14:00 | 9.5°C | 0mm | 82% | 0cm | 13°C | 0mm | 0.26kPa | 9.4m/s |
| 15:00 | 9.6°C | 0mm | 85% | 0cm | 12°C | 0mm | 0.21kPa | 9.8m/s |
| 16:00 | 9.7°C | 0mm | 88% | 0cm | 12°C | 0mm | 0.16kPa | 10m/s |
| 17:00 | 9.6°C | 0mm | 90% | 0cm | 11°C | 0mm | 0.14kPa | 10m/s |
| 18:00 | 9.4°C | 0mm | 91% | 0cm | 11°C | 0mm | 0.12kPa | 11m/s |
| 19:00 ☾ | 9.3°C | 0mm | 92% | 0cm | 11°C | 0mm | 0.1kPa | 11m/s |
How to read: these inputs help produce the derived score; they are not requirements by themselves.
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