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Rule Morning Frost

San Gimignano - Morning Frost - Tuscany

San Gimignano, Tuscany, Italy

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
Time Window 83% failing
Wind Speed 58% failing

Currently

Real-time conditions
Frost Probability
0%
Soil Temperature18.9°C
Dew Point12.6°C (moderate dew point)
Wind Speed6.8m/s (moderate winds)
Cloud Cover5%

Upcoming Opportunities

When all conditions match, PhotoWeather marks an opportunity window.

Times shown in Europe/Rome

No opportunities in the next 10 days

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

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72-hour requirements breakdown

What passed or failed, hour by hour
0matching hours in the next 80 hours
AND logic: all conditions required
Meets requirement
Misses requirement
Time
Europe/Rome
Time Window
Sunrise -45m to +90m
Frost Probability
≥ 60.0%
Wind Speed
≤ 1.5m/s
Sun, May 24
06:00✓0%2.2m/s
07:00✓0%2.2m/s
08:00✕0%2.3m/s
09:00✕0%2.8m/s
10:00✕0%4.4m/s
11:00✕0%5.5m/s
12:00✕0%6.2m/s
13:00✕0%6.4m/s
14:00✕0%7.1m/s
15:00✕0%6.8m/s
16:00✕0%6.5m/s
17:00✕0%6.2m/s
18:00✕0%5.7m/s
19:00✕0%4m/s
20:00✕0%2.4m/s
21:00✕0%1.8m/s
22:00✕0%2.1m/s
23:00✕0%2m/s
Mon, May 25
24:00✕0%1.8m/s
01:00✕0%1.8m/s
02:00✕0%1.7m/s
03:00✕0%1.6m/s
04:00✓0%1.7m/s
05:00✓0%1.5m/s
06:00✓0%1.5m/s
07:00✓0%1.3m/s
08:00✕0%1.2m/s
09:00✕0%1.6m/s
10:00✕0%2.1m/s
11:00✕0%2.5m/s
12:00✕0%3.4m/s
13:00✕0%4.6m/s
14:00✕0%4.9m/s
15:00✕0%5.4m/s
16:00✕0%5.7m/s
17:00✕0%4.9m/s
18:00✕0%5.2m/s
19:00✕0%4.1m/s
20:00✕0%3.3m/s
21:00✕0%2.4m/s
22:00✕0%1.8m/s
23:00✕0%1.4m/s
Tue, May 26
24:00✕0%1.1m/s
01:00✕0%1.3m/s
02:00✕0%1.2m/s
03:00✕0%1.2m/s
04:00✓0%1.2m/s
05:00✓0%1.1m/s
06:00✓0%1.3m/s
07:00✓0%1.5m/s
08:00✕0%1.2m/s
09:00✕0%1.2m/s
10:00✕0%1.2m/s
11:00✕0%1.5m/s
12:00✕0%1.5m/s
13:00✕0%0.83m/s
14:00✕0%0.45m/s
15:00✕0%1.5m/s
16:00✕0%1.5m/s
17:00✕0%1.5m/s
18:00✕0%1.6m/s
19:00✕0%0.8m/s
20:00✕0%0.93m/s
21:00✕0%0.78m/s
22:00✕0%0.62m/s
23:00✕0%0.47m/s
Wed, May 27
24:00✕0%0.41m/s
01:00✕0%0.36m/s
02:00✕0%0.3m/s
03:00✕0%0.71m/s
04:00✓0%1.1m/s
05:00✓0%1.5m/s
06:00✓0%2m/s
07:00✓0%2.5m/s
08:00✕0%3m/s
09:00✕0%3.9m/s
10:00✕0%4.8m/s
11:00✕0%5.8m/s
12:00✕0%4.4m/s
13:00✕0%3.1m/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/Rome
Dew Point
°C
Surface Temperature
°C
Temperature
°C
Time Window
Total Cloud Coverage
%
Vapor Pressure Deficit
kPa
Sun, May 24 Sunrise 05:43 Sunset 20:42
15:00
13°C 19°C 28°C - 5% 2.3kPa
16:00
13°C 19°C 28°C - 7% 2.3kPa
17:00
14°C 19°C 27°C - 6% 2kPa
18:00
14°C 20°C 26°C - 1% 1.7kPa
19:00
15°C 20°C 24°C - 5% 1.3kPa
20:00
14°C 20°C 22°C - 5% 0.96kPa
21:00 ☾
12°C 20°C 20°C - 5% 0.83kPa
22:00 ☾
12°C 19°C 19°C - 5% 0.75kPa
23:00 ☾
12°C 19°C 18°C - 4% 0.62kPa
Mon, May 25 Sunrise 05:43 Sunset 20:42
24:00 ☾
13°C 19°C 17°C - 5% 0.5kPa
01:00 ☾
13°C 19°C 16°C - 5% 0.41kPa
02:00 ☾
12°C 19°C 16°C - 5% 0.36kPa
03:00 ☾
12°C 18°C 15°C - 100% 0.38kPa
04:00 ☾
11°C 18°C 15°C - 100% 0.43kPa
05:00 ☾
11°C 18°C 16°C - 100% 0.5kPa
06:00
10°C 18°C 16°C - 53% 0.52kPa
07:00
12°C 18°C 17°C - 14% 0.58kPa
08:00
13°C 18°C 20°C - 5% 0.86kPa
09:00
14°C 18°C 22°C - 53% 1.1kPa
10:00
14°C 18°C 24°C - 5% 1.4kPa
11:00
15°C 18°C 26°C - 5% 1.8kPa
12:00
14°C 19°C 29°C - 5% 2.4kPa
13:00
13°C 19°C 30°C - 5% 2.7kPa
14:00
13°C 19°C 30°C - 5% 2.8kPa
15:00
13°C 20°C 30°C - 5% 2.8kPa
16:00
14°C 20°C 30°C - 9% 2.6kPa
17:00
16°C 21°C 30°C - 5% 2.4kPa
18:00
15°C 21°C 28°C - 5% 2.1kPa
19:00
16°C 21°C 26°C - 5% 1.5kPa
20:00
14°C 21°C 23°C - 5% 1.2kPa
21:00 ☾
12°C 21°C 21°C - 5% 1.2kPa
22:00 ☾
11°C 21°C 20°C - 5% 1kPa
23:00 ☾
12°C 20°C 19°C - 5% 0.89kPa
Tue, May 26 Sunrise 05:42 Sunset 20:43
24:00 ☾
11°C 20°C 19°C - 5% 0.82kPa
01:00 ☾
11°C 20°C 18°C - 5% 0.75kPa
02:00 ☾
12°C 20°C 18°C - 5% 0.7kPa
03:00 ☾
11°C 19°C 17°C - 5% 0.66kPa
04:00 ☾
11°C 19°C 17°C - 5% 0.65kPa
05:00 ☾
11°C 19°C 17°C - 19% 0.65kPa
06:00
11°C 19°C 17°C - 8% 0.67kPa
07:00
12°C 19°C 19°C - 8% 0.73kPa
08:00
13°C 19°C 21°C - 6% 1.1kPa
09:00
14°C 19°C 24°C - 5% 1.3kPa
10:00
15°C 19°C 26°C - 5% 1.6kPa
11:00
15°C 19°C 27°C - 5% 1.9kPa
12:00
16°C 20°C 29°C - 5% 2.2kPa
13:00
16°C 20°C 30°C - 6% 2.4kPa
14:00
15°C 21°C 31°C - 5% 2.6kPa
15:00
16°C 21°C 31°C - 5% 2.7kPa
16:00
16°C 22°C 31°C - 18% 2.7kPa
17:00
16°C 22°C 31°C - 94% 2.6kPa
18:00
18°C 22°C 28°C - 96% 1.6kPa
19:00
19°C 22°C 26°C - 32% 1.3kPa
20:00
18°C 22°C 25°C - 9% 1.1kPa
21:00 ☾
16°C 22°C 23°C - 39% 0.9kPa
22:00 ☾
14°C 21°C 20°C - 70% 0.76kPa
23:00 ☾
12°C 20°C 18°C - 100% 0.63kPa
Wed, May 27 Sunrise 05:41 Sunset 20:44
24:00 ☾
13°C 20°C 19°C - 100% 0.71kPa
01:00 ☾
14°C 20°C 20°C - 100% 0.79kPa
02:00 ☾
14°C 20°C 21°C - 100% 0.88kPa
03:00 ☾
15°C 20°C 23°C - 68% 1.1kPa
04:00 ☾
16°C 20°C 25°C - 37% 1.3kPa
05:00 ☾
17°C 20°C 27°C - 5% 1.6kPa
06:00
17°C 21°C 28°C - 6% 1.8kPa
07:00
17°C 21°C 29°C - 6% 2kPa
08:00
17°C 21°C 30°C - 7% 2.2kPa
09:00
16°C 22°C 29°C - 8% 2.1kPa
10:00
15°C 22°C 28°C - 8% 2kPa
11:00
15°C 22°C 27°C - 9% 1.9kPa
12:00
15°C 22°C 25°C - 8% 1.5kPa
13:00
15°C 22°C 24°C - 7% 1.2kPa
14:00
15°C 22°C 22°C - 7% 0.91kPa
How to read: these inputs help produce the derived score; they are not requirements by themselves.

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