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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)
Time Window 100% failing
Frost Probability 100% failing
Wind Speed 79% failing

Currently

Real-time conditions
Frost Probability
0%
Soil Temperature9725.9°C
Dew Point16.2°C (high dew point)
Wind Speed2.3m/s (calm conditions)
Cloud Cover100%

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
Sat, May 23
22:00✕0%6.2m/s
23:00✕0%6.3m/s
Sun, May 24
24:00✕0%6.2m/s
01:00✕0%5.9m/s
02:00✕0%6.4m/s
03:00✕0%6.2m/s
04:00✕0%6.1m/s
05:00✕0%6.6m/s
06:00✕0%6.8m/s
07:00✕0%7m/s
08:00✕0%6.7m/s
09:00✕0%6.2m/s
10:00✕0%5.1m/s
11:00✕0%4.8m/s
12:00✕0%3.3m/s
13:00✕0%3m/s
14:00✕0%2.4m/s
15:00✕0%1.4m/s
16:00✕0%2.8m/s
17:00✕0%2.8m/s
18:00✕0%2.3m/s
19:00✕0%2.2m/s
20:00✕0%2.4m/s
21:00✕0%1.9m/s
22:00✕0%2.3m/s
23:00✕0%2.5m/s
Mon, May 25
24:00✕0%2.9m/s
01:00✕0%3.2m/s
02:00✕0%3.4m/s
03:00✕0%3.2m/s
04:00✕0%3.1m/s
05:00✕0%3.1m/s
06:00✕0%3.5m/s
07:00✕0%4.4m/s
08:00✕0%3.8m/s
09:00✕0%3.6m/s
10:00✕0%3.5m/s
11:00✕0%2.3m/s
12:00✕0%1.2m/s
13:00✕0%1.1m/s
14:00✕0%3.3m/s
15:00✕0%4.8m/s
16:00✕0%4.7m/s
17:00✕0%4m/s
18:00✕0%3.2m/s
19:00✕0%3m/s
20:00✕0%2m/s
21:00✕0%1.6m/s
22:00✕0%1.2m/s
23:00✕0%1.3m/s
Tue, May 26
24:00✕0%0.95m/s
01:00✕0%1.8m/s
02:00✕0%2.5m/s
03:00✕0%2.7m/s
04:00✕0%2.9m/s
05:00✕0%2.4m/s
06:00✕0%2.7m/s
07:00✕0%2.6m/s
08:00✕0%2.2m/s
09:00✕0%2.2m/s
10:00✕0%1.2m/s
11:00✕0%0.24m/s
12:00✕0%0.89m/s
13:00✕0%1.9m/s
14:00✕0%1.9m/s
15:00✕0%2m/s
16:00✕0%3m/s
17:00✕0%3.3m/s
18:00✕0%3.8m/s
19:00✕0%3.8m/s
20:00✕0%3.8m/s
21:00✕0%3.2m/s
22:00✕0%1.9m/s
23:00✕0%1.1m/s
Wed, May 27
24:00✕0%1.5m/s
01:00✕0%2m/s
02:00✕0%2.3m/s
03:00✕0%2.2m/s
04:00✕0%2.7m/s
05:00✕0%3.1m/s
06:00✕0%3.6m/s
07:00✕0%3.5m/s
08:00✕0%3.4m/s
09:00✕0%3.4m/s
10:00✕0%3.1m/s
11:00✕0%2.8m/s
12:00✕0%2.5m/s
13:00✕0%2m/s
14:00✕0%1.6m/s
15:00✕0%1.1m/s
16:00✕0%0.86m/s
17:00✕0%0.66m/s
18:00✕0%0.46m/s
19:00✕0%0.36m/s
20:00✕0%0.26m/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
Sun, May 24 Sunrise 04:32 Sunset 18:45
22:00 ☾
16°C 9726°C 19°C - 100% 0.42kPa
23:00 ☾
16°C 9726°C 19°C - 100% 0.4kPa
Mon, May 25 Sunrise 04:32 Sunset 18:45
24:00 ☾
16°C 9726°C 19°C - 100% 0.39kPa
01:00 ☾
16°C 9726°C 19°C - 100% 0.38kPa
02:00 ☾
16°C 9726°C 19°C - 95% 0.36kPa
03:00 ☾
16°C 9726°C 19°C - 8% 0.36kPa
04:00 ☾
16°C 9726°C 19°C - 0% 0.36kPa
05:00 ☾
16°C 9726°C 19°C - 0% 0.36kPa
06:00 ☾
16°C 9726°C 19°C - 5% 0.39kPa
07:00 ☾
16°C 9726°C 20°C - 6% 0.48kPa
08:00 ☾
16°C 9726°C 20°C - 0% 0.57kPa
09:00
16°C 9726°C 21°C - 0% 0.63kPa
10:00
16°C 9726°C 21°C - 0% 0.74kPa
11:00
15°C 9726°C 22°C - 0% 0.86kPa
12:00
16°C 9726°C 23°C - 7% 0.93kPa
13:00
16°C 9726°C 23°C - 48% 0.97kPa
14:00
16°C 9726°C 22°C - 79% 0.94kPa
15:00
16°C 9726°C 22°C - 100% 0.85kPa
16:00
16°C 9726°C 22°C - 100% 0.74kPa
17:00
17°C 9726°C 22°C - 99% 0.66kPa
18:00
17°C 9726°C 22°C - 100% 0.6kPa
19:00 ☾
17°C 9726°C 21°C - 100% 0.57kPa
20:00 ☾
17°C 9726°C 21°C - 100% 0.55kPa
21:00 ☾
17°C 9726°C 21°C - 100% 0.53kPa
22:00 ☾
17°C 9726°C 20°C - 100% 0.51kPa
23:00 ☾
17°C 9726°C 20°C - 66% 0.5kPa
Tue, May 26 Sunrise 04:31 Sunset 18:46
24:00 ☾
17°C 9726°C 20°C - 100% 0.48kPa
01:00 ☾
16°C 9726°C 20°C - 100% 0.48kPa
02:00 ☾
16°C 9726°C 20°C - 100% 0.46kPa
03:00 ☾
16°C 9726°C 20°C - 100% 0.41kPa
04:00 ☾
17°C 9726°C 19°C - 100% 0.38kPa
05:00 ☾
17°C 9726°C 20°C - 100% 0.36kPa
06:00 ☾
17°C 9726°C 20°C - 100% 0.36kPa
07:00 ☾
17°C 9726°C 20°C - 100% 0.39kPa
08:00 ☾
17°C 9726°C 20°C - 100% 0.45kPa
09:00
17°C 9726°C 21°C - 100% 0.52kPa
10:00
16°C 9726°C 21°C - 100% 0.63kPa
11:00
16°C 9726°C 22°C - 100% 0.73kPa
12:00
16°C 9726°C 22°C - 100% 0.76kPa
13:00
16°C 9726°C 22°C - 89% 0.8kPa
14:00
16°C 9726°C 22°C - 92% 0.86kPa
15:00
16°C 9726°C 23°C - 100% 0.93kPa
16:00
17°C 9726°C 23°C - 100% 0.88kPa
17:00
17°C 9726°C 22°C - 100% 0.76kPa
18:00
17°C 9726°C 22°C - 100% 0.67kPa
19:00 ☾
17°C 9726°C 21°C - 100% 0.57kPa
20:00 ☾
18°C 9726°C 21°C - 100% 0.45kPa
21:00 ☾
18°C 9726°C 21°C - 100% 0.4kPa
22:00 ☾
18°C 9726°C 21°C - 100% 0.38kPa
23:00 ☾
18°C 9726°C 21°C - 100% 0.36kPa
Wed, May 27 Sunrise 04:31 Sunset 18:46
24:00 ☾
18°C 9726°C 20°C - 92% 0.36kPa
01:00 ☾
18°C 9726°C 21°C - 100% 0.36kPa
02:00 ☾
18°C 9726°C 21°C - 100% 0.37kPa
03:00 ☾
18°C 9726°C 20°C - 100% 0.36kPa
04:00 ☾
18°C 6491°C 21°C - 100% 0.41kPa
05:00 ☾
17°C 3256°C 21°C - 100% 0.45kPa
06:00 ☾
17°C 21°C 21°C - 100% 0.5kPa
07:00 ☾
17°C 22°C 21°C - 100% 0.59kPa
08:00 ☾
16°C 22°C 21°C - 100% 0.68kPa
09:00
16°C 22°C 21°C - 100% 0.77kPa
10:00
16°C 22°C 22°C - 100% 0.73kPa
11:00
17°C 22°C 22°C - 100% 0.69kPa
12:00
17°C 22°C 22°C - 100% 0.65kPa
13:00
17°C 22°C 21°C - 96% 0.59kPa
14:00
18°C 22°C 21°C - 92% 0.52kPa
15:00
18°C 22°C 21°C - 88% 0.46kPa
16:00
18°C 21°C 21°C - 78% 0.46kPa
17:00
17°C 21°C 21°C - 67% 0.47kPa
18:00
17°C 21°C 21°C - 57% 0.47kPa
19:00 ☾
17°C 21°C 20°C - 65% 0.46kPa
20:00 ☾
17°C 21°C 20°C - 74% 0.46kPa
21:00 ☾
17°C 20°C 20°C - 82% 0.45kPa
How to read: these inputs help produce the derived score; they are not requirements by themselves.

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