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Rule Morning Frost

Kamakura - Morning Frost - Japan

Kamakura, Kanagawa, Japan

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 99% failing
Time Window 88% failing

Currently

Real-time conditions
Frost Probability
0%
Soil Temperature9725.9°C
Dew Point13.7°C (moderate dew point)
Wind Speed7.9m/s (moderate winds)
Cloud Cover0%

Upcoming Opportunities

When all conditions match, PhotoWeather marks an opportunity window.

Times shown in Asia/Tokyo

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

Japan's winter transforms its iconic landscapes into scenes of serene beauty that embody the aesthetic principle of wabi-sabi—finding beauty in impermanence and imperfection. This forecast tracks frost and freezing conditions across Japan's diverse winter photography destinations.

Winter photography opportunities across Japan:

  • Kyoto's snow-covered temples - Kinkaku-ji golden pavilion and Fushimi Inari shrine gates become ethereal under fresh snow
  • Hokkaido's frozen landscapes - The Blue Pond in Biei develops stunning ice patterns and frost-covered trees create otherworldly scenes
  • Mountain shrines - Nikko's ornate Toshogu shrine complex gains dramatic contrast under winter snow
  • Historic streets - Takayama's preserved Edo-period town appears suspended in time with frost-laden roofs
  • Ice formations - Mountain shrines and waterfalls develop intricate ice sculptures

The season runs from December through February across most of Japan, with Hokkaido remaining frozen well into March. Early morning shoots capture hoarfrost at its peak before the sun melts the delicate ice crystals. The contrast between traditional architecture and pristine snow creates compositions rich in cultural depth.

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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
Asia/Tokyo
Time Window
Sunrise -45m to +90m
Frost Probability
≥ 60.0%
Wind Speed
≤ 1.5m/s
Sun, Feb 22
10:00✕0%4.3m/s
11:00✕0%4.8m/s
12:00✕0%6.7m/s
13:00✕0%8.3m/s
14:00✕0%11m/s
15:00✕0%11m/s
16:00✕0%12m/s
17:00✕0%12m/s
18:00✕0%11m/s
19:00✕0%9.7m/s
20:00✕0%8.9m/s
21:00✕0%9.5m/s
22:00✕0%9.5m/s
23:00✕0%8.9m/s
Mon, Feb 23
24:00✕0%8.8m/s
01:00✕0%9.7m/s
02:00✕0%9.3m/s
03:00✕0%9.6m/s
04:00✕0%11m/s
05:00✓0%12m/s
06:00✓0%11m/s
07:00✓0%10m/s
08:00✕0%9.3m/s
09:00✕0%7.3m/s
10:00✕0%7.9m/s
11:00✕0%7.9m/s
12:00✕0%8.4m/s
13:00✕0%9.6m/s
14:00✕0%10m/s
15:00✕0%10m/s
16:00✕0%9.5m/s
17:00✕0%8.7m/s
18:00✕0%7.2m/s
19:00✕0%4.7m/s
20:00✕0%5.3m/s
21:00✕0%8.7m/s
22:00✕0%11m/s
23:00✕0%8.2m/s
Tue, Feb 24
24:00✕0%7.9m/s
01:00✕0%7.6m/s
02:00✕0%7.2m/s
03:00✕0%6.6m/s
04:00✕0%6.2m/s
05:00✓0%5.4m/s
06:00✓0%4.8m/s
07:00✓0%4.1m/s
08:00✕0%3.8m/s
09:00✕0%3.3m/s
10:00✕0%2.7m/s
11:00✕0%2.3m/s
12:00✕0%1.9m/s
13:00✕0%2.6m/s
14:00✕0%3.8m/s
15:00✕0%5.6m/s
16:00✕0%6.7m/s
17:00✕0%6.9m/s
18:00✕0%6.4m/s
19:00✕0%6.9m/s
20:00✕0%6.3m/s
21:00✕0%6m/s
22:00✕0%5.7m/s
23:00✕0%5.5m/s
Wed, Feb 25
24:00✕0%5.9m/s
01:00✕0%8.7m/s
02:00✕0%8.9m/s
03:00✕0%8.4m/s
04:00✕0%7.8m/s
05:00✓0%7.9m/s
06:00✓0%7.9m/s
07:00✓0%8.8m/s
08:00✕0%9.3m/s
09:00✕0%7.4m/s
10:00✕0%3.3m/s
11:00✕0%1.3m/s
12:00✕0%1.7m/s
13:00✕0%8.6m/s
14:00✕0%10m/s
15:00✕0%13m/s
16:00✕0%11m/s
17:00✕0%9.2m/s
18:00✕0%7.3m/s
19:00✕0%7.3m/s
20:00✕0%7.2m/s
21:00✕0%7.1m/s
22:00✕0%7.1m/s
23:00✕0%7.2m/s
Thu, Feb 26
24:00✕0%7.2m/s
01:00✕0%7.1m/s
02:00✕0%7m/s
03:00✕0%6.8m/s
04:00✕0%6.8m/s
05:00✓0%6.8m/s
06:00✓0%6.8m/s
07:00✓0%6.7m/s
08:00✕0%6.7m/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
Asia/Tokyo
Dew Point
°C
Surface Temperature
°C
Temperature
°C
Time Window
Total Cloud Coverage
%
Vapor Pressure Deficit
kPa
Mon, Feb 23 Sunrise 06:18 Sunset 17:31
11:00 ☾
14°C 9726°C 17°C - 0% 0.32kPa
12:00 ☾
14°C 9726°C 17°C - 0% 0.37kPa
13:00 ☾
13°C 9726°C 17°C - 0% 0.42kPa
14:00 ☾
13°C 9726°C 17°C - 0% 0.43kPa
15:00 ☾
12°C 9726°C 16°C - 0% 0.44kPa
16:00 ☾
12°C 9726°C 16°C - 0% 0.46kPa
17:00 ☾
12°C 9726°C 16°C - 0% 0.48kPa
18:00 ☾
12°C 9726°C 16°C - 9% 0.46kPa
19:00 ☾
12°C 9726°C 16°C - 98% 0.47kPa
20:00 ☾
11°C 9726°C 16°C - 7% 0.53kPa
21:00 ☾
11°C 9726°C 15°C - 51% 0.35kPa
22:00 ☾
11°C 9726°C 14°C - 97% 0.27kPa
23:00 ☾
10°C 9726°C 13°C - 58% 0.29kPa
Tue, Feb 24 Sunrise 06:18 Sunset 17:31
24:00 ☾
9.8°C 9726°C 13°C - 57% 0.31kPa
01:00 ☾
9.7°C 9726°C 13°C - 65% 0.29kPa
02:00 ☾
9.3°C 9726°C 13°C - 40% 0.29kPa
03:00 ☾
8.9°C 9726°C 12°C - 26% 0.29kPa
04:00 ☾
8.4°C 9726°C 12°C - 100% 0.3kPa
05:00 ☾
8.2°C 9726°C 12°C - 46% 0.3kPa
06:00 ☾
8°C 9726°C 12°C - 86% 0.3kPa
07:00 ☾
7.9°C 9726°C 12°C - 91% 0.31kPa
08:00 ☾
7.7°C 9726°C 12°C - 100% 0.34kPa
09:00 ☾
7.5°C 9726°C 12°C - 100% 0.38kPa
10:00 ☾
7.3°C 9726°C 12°C - 100% 0.42kPa
11:00 ☾
7.1°C 9726°C 13°C - 36% 0.46kPa
12:00 ☾
7.1°C 9726°C 13°C - 100% 0.47kPa
13:00 ☾
7.4°C 9726°C 13°C - 100% 0.46kPa
14:00 ☾
8.2°C 9726°C 13°C - 100% 0.43kPa
15:00 ☾
9.4°C 9726°C 14°C - 100% 0.4kPa
16:00 ☾
11°C 9726°C 14°C - 100% 0.36kPa
17:00 ☾
12°C 9726°C 15°C - 100% 0.31kPa
18:00 ☾
12°C 9726°C 15°C - 100% 0.25kPa
19:00 ☾
13°C 9726°C 15°C - 100% 0.2kPa
20:00 ☾
13°C 9726°C 15°C - 100% 0.17kPa
21:00 ☾
13°C 9726°C 15°C - 100% 0.2kPa
22:00 ☾
13°C 9726°C 15°C - 100% 0.26kPa
23:00 ☾
12°C 9726°C 15°C - 100% 0.28kPa
Wed, Feb 25 Sunrise 06:17 Sunset 17:32
24:00 ☾
12°C 9726°C 15°C - 100% 0.25kPa
01:00 ☾
13°C 9726°C 16°C - 100% 0.32kPa
02:00 ☾
13°C 9726°C 16°C - 100% 0.33kPa
03:00 ☾
13°C 9726°C 16°C - 100% 0.33kPa
04:00 ☾
13°C 9726°C 16°C - 100% 0.31kPa
05:00 ☾
13°C 9726°C 16°C - 100% 0.29kPa
06:00 ☾
14°C 9726°C 16°C - 100% 0.26kPa
07:00 ☾
14°C 9726°C 16°C - 100% 0.21kPa
08:00 ☾
14°C 9726°C 16°C - 100% 0.25kPa
09:00 ☾
14°C 9726°C 15°C - 100% 0.14kPa
10:00 ☾
12°C 9726°C 13°C - 100% 0.08kPa
11:00 ☾
13°C 9726°C 14°C - 100% 0.1kPa
12:00 ☾
13°C 9726°C 14°C - 100% 0.1kPa
13:00 ☾
11°C 9726°C 12°C - 100% 0.07kPa
14:00 ☾
11°C 9726°C 12°C - 100% 0.09kPa
15:00 ☾
9.3°C 9726°C 11°C - 100% 0.1kPa
16:00 ☾
7.8°C 6487°C 9.9°C - 100% 0.16kPa
17:00 ☾
6.3°C 3249°C 9.3°C - 100% 0.21kPa
18:00 ☾
4.8°C 11°C 8.7°C - 100% 0.26kPa
19:00 ☾
4.4°C 11°C 8.6°C - 100% 0.28kPa
20:00 ☾
3.9°C 10°C 8.5°C - 100% 0.3kPa
21:00 ☾
3.4°C 10°C 8.4°C - 100% 0.32kPa
22:00 ☾
3.1°C 10°C 8.3°C - 100% 0.33kPa
23:00 ☾
2.9°C 10°C 8.1°C - 100% 0.33kPa
Thu, Feb 26 Sunrise 06:16 Sunset 17:32
24:00 ☾
2.6°C 9.9°C 8°C - 100% 0.33kPa
01:00 ☾
2.4°C 10°C 8.1°C - 95% 0.35kPa
02:00 ☾
2.2°C 10°C 8.3°C - 90% 0.38kPa
03:00 ☾
2°C 10°C 8.4°C - 85% 0.4kPa
04:00 ☾
2.1°C 11°C 9.1°C - 88% 0.44kPa
05:00 ☾
2.3°C 12°C 9.8°C - 91% 0.49kPa
06:00 ☾
2.4°C 13°C 11°C - 93% 0.54kPa
07:00 ☾
2.7°C 13°C 11°C - 63% 0.59kPa
08:00 ☾
3°C 14°C 12°C - 32% 0.64kPa
09:00 ☾
3.4°C 15°C 13°C - 2% 0.69kPa
10:00 ☾
3.6°C 15°C 12°C - 1% 0.64kPa
How to read: these inputs help produce the derived score; they are not requirements by themselves.

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