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Rule Morning Frost

Morning Frost Forecast for Utrecht, The Netherlands

Utrecht, Utrecht, The Netherlands

Two-level canals with waterside wharf cellars lead through the old centre, with the Dom Tower anchoring wider city compositions.

Currently

Real-time conditions
Soil Temperature25.7°C
Dew Point5.7°C (moderate dew point)
Wind Speed2.6m/s (calm conditions)
Cloud Cover5%

Upcoming Opportunities

When all conditions match, PhotoWeather marks an opportunity window.

Times shown in Europe/Amsterdam

No opportunities in the next 14 days

See which requirements block the most forecast hours below.

Most common blockers (87-hour forecast)

  • Frost Probability100% of hours
  • Wind Speed99% of hours
  • Time Window88% of hours

How this forecast is evaluated

See which weather signals PhotoWeather uses to identify Morning Frost conditions across The Netherlands. The requirements and hourly values below show how those signals apply at Utrecht.

Explore Morning Frost conditions across The Netherlands →

Recorded match history

Completed PhotoWeather forecast matches recorded for this exact rule at Utrecht during the last 365 days.

Last 30 days
0
recorded matching windows
Last 90 days
0
recorded matching windows
Last 365 days
0
recorded matching windows

These figures use completed PhotoWeather MatchEvent records from the previous 365 days only. They describe recorded forecast matches, not observations, climatological probability, or a guarantee of future conditions.

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87-hour requirements breakdown

When available, the detailed table below covers only the stated 87-hour horizon (typically 72–168 hours, depending on available hourly data). Opportunity records above span the next 14 days, so this table does not explain that entire 14-day period.

What passed or failed, hour by hour
0matching hours in the next 87 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, Aug 13
06:000%2.9m/s
07:000%3m/s
08:000%2.8m/s
09:000%3.7m/s
10:000%3.6m/s
11:000%3.4m/s
12:000%3.4m/s
13:000%3.2m/s
14:000%3m/s
15:000%2.8m/s
16:000%2.7m/s
17:000%2.6m/s
18:000%2.7m/s
19:000%3m/s
20:000%2.4m/s
21:000%2.9m/s
22:000%2.6m/s
23:000%2.5m/s
Fri, Aug 14
24:000%2m/s
01:000%2.3m/s
02:000%2.7m/s
03:000%2.6m/s
04:000%2.6m/s
05:000%3m/s
06:000%2.9m/s
07:000%2.3m/s
08:000%1.9m/s
09:000%1.4m/s
10:000%1.5m/s
11:000%2m/s
12:000%2.7m/s
13:000%3.2m/s
14:000%3.8m/s
15:000%4.3m/s
16:000%4.5m/s
17:000%4.4m/s
18:000%4.2m/s
19:000%4.3m/s
20:000%4.2m/s
21:000%3.2m/s
22:000%3m/s
23:000%3.1m/s
Sat, Aug 15
24:000%3.2m/s
01:000%2.8m/s
02:000%2.6m/s
03:000%2.5m/s
04:000%2.8m/s
05:000%3m/s
06:000%2.3m/s
07:000%2.7m/s
08:000%2.3m/s
09:000%1.9m/s
10:000%1.8m/s
11:000%3.4m/s
12:000%3.5m/s
13:000%3.2m/s
14:000%2.6m/s
15:000%2.8m/s
16:000%3.5m/s
17:000%4.5m/s
18:000%5.7m/s
19:000%5.8m/s
20:000%5.6m/s
21:000%5.4m/s
22:000%4.8m/s
23:000%4.4m/s
Sun, Aug 16
24:000%3.8m/s
01:000%3.7m/s
02:000%3m/s
03:000%2.8m/s
04:000%3m/s
05:000%3.1m/s
06:000%3.3m/s
07:000%2.9m/s
08:000%2.8m/s
09:000%3.5m/s
10:000%4.3m/s
11:000%5m/s
12:000%4.8m/s
13:000%4.6m/s
14:000%4.5m/s
15:000%3.9m/s
16:000%3.3m/s
17:000%2.7m/s
18:000%2.6m/s
19:000%2.4m/s
20:000%2.3m/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, Aug 13 Sunrise 06:20 Sunset 21:07
22:00
5.7°C 26°C 26°C - 5% 2.4kPa
23:00
5.6°C 25°C 24°C - 0% 2.1kPa
Fri, Aug 14 Sunrise 06:20 Sunset 21:07
24:00
5.5°C 25°C 23°C - 3% 1.9kPa
01:00
5.7°C 25°C 23°C - 5% 1.8kPa
02:00
5.5°C 24°C 22°C - 11% 1.8kPa
03:00
5.2°C 24°C 22°C - 4% 1.7kPa
04:00
5°C 24°C 21°C - 0% 1.7kPa
05:00
5.1°C 23°C 21°C - 0% 1.6kPa
06:00
5.1°C 23°C 20°C - 5% 1.5kPa
07:00
5.4°C 23°C 20°C - 5% 1.4kPa
08:00
5.8°C 23°C 22°C - 5% 1.7kPa
09:00
5.6°C 23°C 26°C - 5% 2.4kPa
10:00
5.7°C 23°C 29°C - 6% 3.1kPa
11:00
5.9°C 24°C 32°C - 10% 3.8kPa
12:00
5.5°C 24°C 34°C - 47% 4.5kPa
13:00
5.5°C 25°C 35°C - 73% 4.8kPa
14:00
6°C 26°C 36°C - 17% 5kPa
15:00
6.6°C 26°C 36°C - 5% 5kPa
16:00
7.4°C 27°C 36°C - 5% 4.9kPa
17:00
7.9°C 27°C 36°C - 5% 4.8kPa
18:00
8.2°C 28°C 35°C - 4% 4.4kPa
19:00
9.4°C 28°C 33°C - 4% 3.8kPa
20:00
12°C 28°C 29°C - 5% 2.7kPa
21:00
13°C 27°C 25°C - 5% 1.6kPa
22:00
13°C 27°C 23°C - 66% 1.3kPa
23:00
14°C 26°C 22°C - 98% 1kPa
Sat, Aug 15 Sunrise 06:21 Sunset 21:05
24:00
15°C 26°C 20°C - 96% 0.68kPa
01:00
15°C 25°C 20°C - 5% 0.66kPa
02:00
15°C 25°C 19°C - 11% 0.56kPa
03:00
15°C 25°C 19°C - 96% 0.45kPa
04:00
15°C 24°C 19°C - 16% 0.41kPa
05:00
15°C 24°C 18°C - 99% 0.35kPa
06:00
16°C 23°C 18°C - 100% 0.28kPa
07:00
16°C 23°C 18°C - 100% 0.26kPa
08:00
16°C 23°C 19°C - 100% 0.39kPa
09:00
16°C 23°C 21°C - 100% 0.58kPa
10:00
16°C 23°C 22°C - 100% 0.72kPa
11:00
16°C 23°C 23°C - 100% 0.97kPa
12:00
17°C 23°C 23°C - 100% 0.97kPa
13:00
15°C 23°C 26°C - 100% 1.5kPa
14:00
15°C 24°C 28°C - 100% 2.1kPa
15:00
14°C 24°C 29°C - 95% 2.5kPa
16:00
14°C 24°C 30°C - 100% 2.6kPa
17:00
14°C 25°C 29°C - 19% 2.5kPa
18:00
15°C 25°C 28°C - 6% 2.1kPa
19:00
15°C 25°C 26°C - 3% 1.6kPa
20:00
16°C 25°C 24°C - 0% 1.1kPa
21:00
17°C 25°C 21°C - 0% 0.55kPa
22:00
17°C 24°C 19°C - 0% 0.33kPa
23:00
17°C 24°C 18°C - 10% 0.22kPa
Sun, Aug 16 Sunrise 06:23 Sunset 21:03
24:00
16°C 23°C 18°C - 70% 0.19kPa
01:00
16°C 23°C 18°C - 100% 0.32kPa
02:00
15°C 23°C 18°C - 100% 0.39kPa
03:00
15°C 22°C 18°C - 100% 0.41kPa
04:00
15°C 22°C 18°C - 99% 0.43kPa
05:00
14°C 22°C 18°C - 100% 0.47kPa
06:00
14°C 22°C 18°C - 100% 0.45kPa
07:00
14°C 22°C 17°C - 100% 0.39kPa
08:00
14°C 21°C 17°C - 100% 0.4kPa
09:00
13°C 22°C 20°C - 100% 0.76kPa
10:00
12°C 22°C 22°C - 100% 1.2kPa
11:00
9.7°C 23°C 24°C - 100% 1.8kPa
12:00
10°C 23°C 23°C - 100% 1.5kPa
13:00
10°C 22°C 21°C - 100% 1.3kPa
14:00
10°C 22°C 20°C - 100% 1.1kPa
15:00
10°C 22°C 19°C - 96% 0.91kPa
16:00
9.6°C 22°C 17°C - 92% 0.75kPa
17:00
9.1°C 21°C 16°C - 88% 0.61kPa
18:00
8.7°C 21°C 15°C - 92% 0.62kPa
19:00
8.2°C 21°C 15°C - 96% 0.62kPa
20:00
7.8°C 20°C 15°C - 100% 0.62kPa
21:00
8.5°C 20°C 15°C - 100% 0.54kPa
How to read: these inputs help produce the derived score; they are not requirements by themselves.

How this forecast is made

Opportunities are threshold-based signals: PhotoWeather checks whether forecast conditions match the rules for a photography scenario. They are planning guidance, not guarantees. Forecasts can change as new model runs arrive, and confidence generally decreases farther into the forecast horizon, so recheck conditions before travelling.

The weather forecast foundation comes through Open-Meteo , which aggregates models from weather agencies. PhotoWeather applies condition-specific thresholds and derived calculations; not every condition uses every model or data input.

Forecast generated

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