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Rule Morning Frost

Kanazawa - Morning Frost - Japan

Kanazawa, Ishikawa, 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 92% failing
Time Window 88% failing

Currently

Real-time conditions
Soil Temperature14.2°C
Dew Point3.9°C (low dew point)
Wind Speed2.6m/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
Wed, Apr 8
10:000%4m/s
11:000%4.6m/s
12:000%5.2m/s
13:000%5.2m/s
14:000%4m/s
15:000%3.6m/s
16:000%3m/s
17:000%2.2m/s
18:000%1.6m/s
19:000%1.4m/s
20:000%1.1m/s
21:000%1.2m/s
22:000%1.2m/s
23:000%1.2m/s
Thu, Apr 9
24:000%1.2m/s
01:000%1.1m/s
02:000%1.1m/s
03:000%1.6m/s
04:000%2m/s
05:000%1.8m/s
06:000%1.9m/s
07:000%1.5m/s
08:000%0.87m/s
09:000%1.5m/s
10:000%2.6m/s
11:000%2m/s
12:000%2.8m/s
13:000%4.6m/s
14:000%5.2m/s
15:000%5.2m/s
16:000%6.1m/s
17:000%5.1m/s
18:000%1.8m/s
19:000%2.2m/s
20:000%2.3m/s
21:000%2.2m/s
22:000%3m/s
23:000%1.5m/s
Fri, Apr 10
24:000%3.3m/s
01:000%3.9m/s
02:000%3.2m/s
03:000%2.6m/s
04:000%1.5m/s
05:000%0.47m/s
06:000%0.32m/s
07:000%0.88m/s
08:000%1.1m/s
09:000%0.53m/s
10:000%3m/s
11:000%2.8m/s
12:000%3.9m/s
13:000%4.1m/s
14:000%5.5m/s
15:000%5.5m/s
16:000%5.5m/s
17:000%5.8m/s
18:000%5m/s
19:000%4.6m/s
20:000%6.2m/s
21:000%5.6m/s
22:000%5.6m/s
23:000%5.7m/s
Sat, Apr 11
24:000%5.4m/s
01:000%5.7m/s
02:000%5.7m/s
03:000%5.7m/s
04:000%6.1m/s
05:000%6.2m/s
06:000%7.1m/s
07:000%8.2m/s
08:000%8.9m/s
09:000%8.4m/s
10:000%8.5m/s
11:000%8.2m/s
12:000%9m/s
13:000%7.8m/s
14:000%6m/s
15:000%4.7m/s
16:000%4.1m/s
17:000%3.5m/s
18:000%2.8m/s
19:000%2.8m/s
20:000%2.9m/s
21:000%2.9m/s
22:000%2.6m/s
23:000%2.3m/s
Sun, Apr 12
24:000%2m/s
01:000%2.1m/s
02:000%2.1m/s
03:000%2.1m/s
04:000%2.6m/s
05:000%3m/s
06:000%3.4m/s
07:000%3.4m/s
08:000%3.3m/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
Asia/Tokyo
Dew Point
°C
Surface Temperature
°C
Temperature
°C
Time Window
Total Cloud Coverage
%
Vapor Pressure Deficit
kPa
Thu, Apr 9 Sunrise 05:27 Sunset 18:22
10:00
3.9°C 14°C 14°C - 100% 0.82kPa
11:00
5.4°C 16°C 15°C - 100% 0.83kPa
12:00
6.5°C 17°C 16°C - 100% 0.85kPa
13:00
6.6°C 18°C 17°C - 100% 0.95kPa
14:00
5.4°C 19°C 18°C - 100% 1.2kPa
15:00
5.1°C 20°C 18°C - 100% 1.2kPa
16:00
6°C 19°C 17°C - 100% 0.97kPa
17:00
6.5°C 19°C 16°C - 100% 0.82kPa
18:00
6.7°C 18°C 16°C - 100% 0.78kPa
19:00
6.5°C 17°C 15°C - 100% 0.76kPa
20:00
6.6°C 17°C 14°C - 100% 0.67kPa
21:00
7.6°C 16°C 14°C - 100% 0.53kPa
22:00
8.5°C 15°C 14°C - 100% 0.45kPa
23:00
9.5°C 15°C 14°C - 100% 0.39kPa
Fri, Apr 10 Sunrise 05:27 Sunset 18:22
24:00
10°C 15°C 13°C - 100% 0.28kPa
01:00
11°C 14°C 12°C - 100% 0.14kPa
02:00
11°C 14°C 12°C - 100% 0.12kPa
03:00
11°C 14°C 13°C - 100% 0.11kPa
04:00
12°C 14°C 13°C - 100% 0.09kPa
05:00
12°C 13°C 13°C - 100% 0.12kPa
06:00
12°C 13°C 13°C - 100% 0.15kPa
07:00
12°C 13°C 13°C - 100% 0.16kPa
08:00
12°C 13°C 13°C - 100% 0.11kPa
09:00
12°C 14°C 14°C - 100% 0.18kPa
10:00
13°C 14°C 16°C - 100% 0.29kPa
11:00
13°C 14°C 15°C - 100% 0.17kPa
12:00
14°C 15°C 17°C - 100% 0.3kPa
13:00
14°C 16°C 18°C - 100% 0.47kPa
14:00
15°C 17°C 18°C - 100% 0.39kPa
15:00
15°C 17°C 18°C - 100% 0.33kPa
16:00
15°C 17°C 18°C - 100% 0.36kPa
17:00
15°C 17°C 16°C - 100% 0.14kPa
18:00
15°C 17°C 15°C - 99% 0.05kPa
19:00
15°C 17°C 15°C - 98% 0.06kPa
20:00
15°C 16°C 16°C - 99% 0.11kPa
21:00
14°C 16°C 15°C - 100% 0.15kPa
22:00
14°C 16°C 15°C - 100% 0.15kPa
23:00
14°C 16°C 15°C - 100% 0.15kPa
Sat, Apr 11 Sunrise 05:26 Sunset 18:22
24:00
13°C 15°C 15°C - 100% 0.15kPa
01:00
13°C 15°C 15°C - 100% 0.14kPa
02:00
13°C 15°C 14°C - 100% 0.12kPa
03:00
13°C 15°C 14°C - 100% 0.08kPa
04:00
13°C 15°C 14°C - 100% 0.07kPa
05:00
13°C 14°C 14°C - 85% 0.1kPa
06:00
12°C 14°C 14°C - 60% 0.21kPa
07:00
11°C 14°C 13°C - 63% 0.2kPa
08:00
11°C 14°C 13°C - 3% 0.22kPa
09:00
11°C 15°C 14°C - 1% 0.29kPa
10:00
10°C 16°C 14°C - 1% 0.37kPa
11:00
10°C 16°C 14°C - 0% 0.41kPa
12:00
9.6°C 17°C 14°C - 22% 0.44kPa
13:00
8.6°C 18°C 14°C - 4% 0.52kPa
14:00
7.7°C 18°C 14°C - 0% 0.55kPa
15:00
6.5°C 18°C 14°C - 0% 0.6kPa
16:00
5.3°C 17°C 13°C - 4% 0.63kPa
17:00
3.9°C 15°C 13°C - 7% 0.65kPa
18:00
2.6°C 13°C 12°C - 11% 0.67kPa
19:00
2.3°C 12°C 12°C - 17% 0.67kPa
20:00
2.1°C 12°C 12°C - 22% 0.67kPa
21:00
1.8°C 12°C 12°C - 28% 0.67kPa
22:00
2.2°C 11°C 12°C - 21% 0.66kPa
23:00
2.5°C 11°C 12°C - 13% 0.64kPa
Sun, Apr 12 Sunrise 05:24 Sunset 18:23
24:00
2.8°C 11°C 12°C - 5% 0.63kPa
01:00
3.3°C 12°C 13°C - 37% 0.69kPa
02:00
3.7°C 13°C 14°C - 68% 0.76kPa
03:00
4.1°C 14°C 15°C - 100% 0.83kPa
04:00
4.7°C 16°C 15°C - 100% 0.81kPa
05:00
5.2°C 17°C 15°C - 100% 0.79kPa
06:00
5.8°C 19°C 15°C - 100% 0.77kPa
07:00
6.6°C 19°C 15°C - 76% 0.71kPa
08:00
7.4°C 20°C 15°C - 51% 0.66kPa
09:00
8.2°C 20°C 15°C - 27% 0.6kPa
How to read: these inputs help produce the derived score; they are not requirements by themselves.

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