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Rule Morning Frost

Utrecht - Morning Frost - The Netherlands

Utrecht, Utrecht, The Netherlands

Frost crystals on calm, cold mornings near sunrise

No opportunities right now
Here’s what usually blocks matches

No Morning Frost opportunities in the next 14 days

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Rule requirements (key thresholds)
Time Window · Sunrise -45m to +90m Frost Probability · ≥ 60.0% Wind Speed · ≤ 1.5m/s

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

Most common blockers (next 72 hours)
Frost Probability 100% failing
Wind Speed 96% failing
Time Window 88% failing

Currently

Real-time conditions
Soil Temperature9.9°C
Dew Point7.8°C (moderate dew point)
Wind Speed2.7m/s (calm conditions)
Cloud Cover100%

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

Dutch winters, when temperatures drop below freezing for extended periods, transform the country's canals and polders into a magical frozen landscape. Hoar frost decorates windmills, creating delicate ice crystal coatings that catch morning light. The historic Elfstedentocht (Eleven Cities Tour) ice-skating conditions—though rare—exemplify the photography potential.

The flat landscape and high humidity create ideal conditions for heavy frost formation. Windmills accumulate intricate ice crystals on their wooden blades and structures. When canals freeze solid, the Netherlands' character transforms—the water that defines the landscape becomes walkable, creating unique perspectives.

What makes Dutch frost photography special:

  • Windmill ice crystals - Hoar frost coating historic structures in delicate white patterns
  • Frozen canal perspective - Unique viewpoints walking on typically impassable water
  • Polder snow simplicity - Minimalist white expanses broken only by windmills and farms
  • Urban canal ice - Amsterdam and Leiden's waterways frozen with footprints and skate tracks

True freezing conditions requiring sustained temperatures below -5°C for multiple days are becoming rarer with climate change. When they occur (typically January-February), act quickly—conditions may last only days. Best frost photography occurs at sunrise when low-angle light illuminates ice crystals. The Kinderdijk, Giethoorn's canals, and rural polders of Friesland offer exceptional winter scenes. Safety first—never venture onto ice without local knowledge of thickness.

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72-hour requirements breakdown

What passed or failed, hour by hour
0matching hours in the next 74 hours
AND logic: all conditions required
Meets requirement
Misses requirement
Time
Europe/Amsterdam
Time Window
Sunrise -45m to +90m
Frost Probability
≥ 60.0%
Wind Speed
≤ 1.5m/s
Thu, Apr 9
06:000%2.1m/s
07:000%2.2m/s
08:000%2.6m/s
09:000%2.7m/s
10:000%2.7m/s
11:000%3m/s
12:000%2.9m/s
13:000%3.2m/s
14:000%3m/s
15:000%3.4m/s
16:000%3.5m/s
17:000%3.6m/s
18:000%3.2m/s
19:000%2.5m/s
20:000%3.2m/s
21:000%3.3m/s
22:000%3.1m/s
23:000%4.2m/s
Fri, Apr 10
24:000%7.3m/s
01:000%5.7m/s
02:000%5.7m/s
03:000%5.7m/s
04:000%5.6m/s
05:000%5.2m/s
06:000%5m/s
07:000%3.8m/s
08:000%2.7m/s
09:000%3.1m/s
10:000%3.1m/s
11:000%3m/s
12:000%2.6m/s
13:000%2.2m/s
14:000%2m/s
15:000%2.1m/s
16:000%1.7m/s
17:000%1.3m/s
18:000%1.1m/s
19:000%1.1m/s
20:000%1.8m/s
21:000%1.8m/s
22:000%2.4m/s
23:000%2.6m/s
Sat, Apr 11
24:000%2.6m/s
01:000%3m/s
02:000%3.2m/s
03:000%3.1m/s
04:000%3.8m/s
05:000%4.3m/s
06:000%4.3m/s
07:000%3.8m/s
08:003%3.5m/s
09:000%4.9m/s
10:000%5.6m/s
11:000%6.1m/s
12:000%6.6m/s
13:000%6.8m/s
14:000%7m/s
15:000%5.6m/s
16:000%4.3m/s
17:000%2.9m/s
18:000%3m/s
19:000%3.1m/s
20:000%3.2m/s
21:000%3.2m/s
22:000%3.2m/s
23:001.7%3.2m/s
Sun, Apr 12
24:001.7%3.5m/s
01:001.7%3.9m/s
02:001.7%4.2m/s
03:002.8%4.6m/s
04:002.8%4.9m/s
05:003%5.3m/s
06:003%5.3m/s
07:000%5.3m/s
How to read: colored cells show whether each predicate requirement is met; highlighted rows mean the full rule matched (an opportunity).

What does Frost 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
Dew Point
°C
Surface Temperature
°C
Temperature
°C
Time Window
Total Cloud Coverage
%
Vapor Pressure Deficit
kPa
Thu, Apr 9 Sunrise 06:56 Sunset 20:26
10:00
7.8°C 9.9°C 13°C - 100% 0.48kPa
11:00
8.5°C 10°C 15°C - 76% 0.64kPa
12:00
9.2°C 11°C 17°C - 5% 0.81kPa
13:00
10°C 12°C 19°C - 48% 0.93kPa
14:00
11°C 12°C 20°C - 5% 1.1kPa
15:00
11°C 13°C 21°C - 57% 1.2kPa
16:00
11°C 14°C 22°C - 100% 1.2kPa
17:00
12°C 14°C 21°C - 100% 1.2kPa
18:00
13°C 14°C 20°C - 100% 0.91kPa
19:00
13°C 15°C 18°C - 100% 0.6kPa
20:00
13°C 14°C 15°C - 100% 0.21kPa
21:00
13°C 14°C 14°C - 100% 0.1kPa
22:00
12°C 14°C 13°C - 100% 0.1kPa
23:00
11°C 14°C 13°C - 100% 0.12kPa
Fri, Apr 10 Sunrise 06:56 Sunset 20:26
24:00
7.3°C 13°C 9.1°C - 100% 0.14kPa
01:00
6.8°C 13°C 8.9°C - 100% 0.15kPa
02:00
5.7°C 12°C 7.6°C - 100% 0.12kPa
03:00
5.4°C 12°C 7.4°C - 100% 0.13kPa
04:00
4.6°C 11°C 7°C - 100% 0.16kPa
05:00
3.8°C 11°C 6.7°C - 100% 0.18kPa
06:00
3.1°C 11°C 6.7°C - 100% 0.21kPa
07:00
2.5°C 10°C 6°C - 100% 0.2kPa
08:00
3°C 9.8°C 6.1°C - 100% 0.18kPa
09:00
3.2°C 9.6°C 7.2°C - 100% 0.24kPa
10:00
3°C 9.5°C 8°C - 100% 0.32kPa
11:00
2.4°C 9.5°C 8.5°C - 100% 0.38kPa
12:00
2°C 9.5°C 8.6°C - 100% 0.41kPa
13:00
2.1°C 9.5°C 8.9°C - 100% 0.43kPa
14:00
2°C 9.7°C 9.6°C - 96% 0.49kPa
15:00
2.1°C 10°C 11°C - 100% 0.6kPa
16:00
1.8°C 10°C 11°C - 80% 0.66kPa
17:00
1.6°C 11°C 12°C - 26% 0.69kPa
18:00
1.5°C 11°C 12°C - 74% 0.68kPa
19:00
2.8°C 11°C 11°C - 99% 0.56kPa
20:00
2.9°C 11°C 9°C - 99% 0.4kPa
21:00
2.4°C 10°C 7.4°C - 96% 0.3kPa
22:00
2.5°C 9.9°C 6.8°C - 99% 0.26kPa
23:00
2.5°C 9.6°C 6.6°C - 100% 0.25kPa
Sat, Apr 11 Sunrise 06:54 Sunset 20:28
24:00
2.3°C 9.4°C 6.7°C - 100% 0.26kPa
01:00
2.3°C 9.2°C 7.3°C - 100% 0.3kPa
02:00
2.4°C 9°C 7.4°C - 100% 0.3kPa
03:00
2.1°C 8.8°C 7°C - 93% 0.29kPa
04:00
1.7°C 8.6°C 6.8°C - 89% 0.3kPa
05:00
1.1°C 8.4°C 6.2°C - 100% 0.29kPa
06:00
1°C 8.2°C 6.4°C - 100% 0.3kPa
07:00
1.3°C 8.1°C 6.4°C - 100% 0.29kPa
08:00
2.3°C 8°C 7.1°C - 100% 0.28kPa
09:00
3.5°C 8°C 8.6°C - 100% 0.33kPa
10:00
4.4°C 8.2°C 10°C - 100% 0.41kPa
11:00
4.9°C 8.5°C 12°C - 100% 0.51kPa
12:00
5.2°C 9°C 14°C - 100% 0.67kPa
13:00
6.4°C 9.4°C 15°C - 76% 0.8kPa
14:00
8.7°C 10°C 18°C - 100% 0.95kPa
15:00
7.8°C 9.9°C 14°C - 100% 0.59kPa
16:00
6.4°C 9.6°C 11°C - 100% 0.34kPa
17:00
4.8°C 9.4°C 7.3°C - 100% 0.16kPa
18:00
4.3°C 9.1°C 6.7°C - 100% 0.15kPa
19:00
3.8°C 8.9°C 6°C - 100% 0.13kPa
20:00
3.4°C 8.6°C 5.4°C - 100% 0.12kPa
21:00
3°C 8.3°C 5°C - 100% 0.12kPa
22:00
2.6°C 8°C 4.6°C - 100% 0.11kPa
23:00
2.2°C 7.7°C 4.3°C - 100% 0.11kPa
Sun, Apr 12 Sunrise 06:52 Sunset 20:30
24:00
2.2°C 7.5°C 4.5°C - 100% 0.13kPa
01:00
2.2°C 7.3°C 4.8°C - 100% 0.14kPa
02:00
2.2°C 7°C 5°C - 100% 0.16kPa
03:00
2.7°C 7.2°C 6.5°C - 100% 0.23kPa
04:00
3°C 7.3°C 8°C - 100% 0.31kPa
05:00
3.3°C 7.4°C 9.4°C - 100% 0.41kPa
06:00
3.5°C 7.8°C 10°C - 100% 0.48kPa
07:00
3.6°C 8.3°C 11°C - 100% 0.55kPa
08:00
3.6°C 8.7°C 12°C - 100% 0.64kPa
09:00
4.1°C 8.9°C 12°C - 100% 0.6kPa
How to read: these inputs help produce the derived score; they are not requirements by themselves.

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