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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
Time Window 83% failing
Wind Speed 82% failing

Currently

Real-time conditions
Soil Temperature12.3°C
Dew Point0.0°C (low dew point)
Wind Speed5.2m/s (moderate winds)
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
Sun, Feb 22
04:004.7%2.4m/s
05:004.7%2.4m/s
06:004.9%2.5m/s
07:004.9%2.6m/s
08:004.9%2.2m/s
09:000%1.7m/s
10:000%1.8m/s
11:000%2.7m/s
12:000%4m/s
13:000%5.5m/s
14:000%6.1m/s
15:000%5.7m/s
16:000%4.9m/s
17:000%4.8m/s
18:000%5.4m/s
19:000%6.2m/s
20:000%6.4m/s
21:000%7.1m/s
22:000%8.6m/s
23:000%8m/s
Mon, Feb 23
24:000%8.6m/s
01:000%8.6m/s
02:000%8.1m/s
03:000%5.2m/s
04:000%5.2m/s
05:000%4.5m/s
06:000%4.8m/s
07:000%4.6m/s
08:000%3.3m/s
09:000%3.9m/s
10:000%3.9m/s
11:000%3.4m/s
12:000%3.5m/s
13:000%3.3m/s
14:000%3.9m/s
15:000%3.4m/s
16:000%2.8m/s
17:000%2.7m/s
18:000%2.1m/s
19:000%1.6m/s
20:000%1.1m/s
21:000%2.1m/s
22:000%2.6m/s
23:000%2.1m/s
Tue, Feb 24
24:000%1.7m/s
01:000%1.1m/s
02:000%0.84m/s
03:000%0.15m/s
04:000%0.28m/s
05:003.8%0.76m/s
06:003.8%1.2m/s
07:003.8%1.5m/s
08:003.4%1.9m/s
09:000%2.3m/s
10:000%2.3m/s
11:000%2.7m/s
12:000%3m/s
13:000%3.6m/s
14:000%3.8m/s
15:000%4.7m/s
16:000%5.7m/s
17:000%5.9m/s
18:000%7.1m/s
19:000%5.8m/s
20:000%7.2m/s
21:000%6.5m/s
22:000%7m/s
23:000%5.4m/s
Wed, Feb 25
24:000%6.9m/s
01:000%7.5m/s
02:000%8.9m/s
03:000%9m/s
04:000%8.6m/s
05:000%6.8m/s
06:000%8m/s
07:000%8.1m/s
08:000%8.9m/s
09:000%8.6m/s
10:000%8.8m/s
11:000%9m/s
12:000%9.1m/s
13:000%8.7m/s
14:000%8.2m/s
15:000%7.8m/s
16:000%7.1m/s
17:000%6.5m/s
18:000%5.9m/s
19:000%4.1m/s
20:000%2.3m/s
21:003.8%0.53m/s
22:003.8%0.79m/s
23:003.6%1.1m/s
Thu, Feb 26
24:003.6%1.3m/s
01:003.6%1.4m/s
02:000%1.5m/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 06:32 Sunset 17:40
04:00
0°C 12°C 8.6°C - 100% 0.51kPa
05:00
-1°C 12°C 8.7°C - 100% 0.56kPa
06:00
-1.2°C 11°C 8.4°C - 92% 0.54kPa
07:00
-1.4°C 10°C 8°C - 100% 0.52kPa
08:00
-1.8°C 10°C 7.8°C - 92% 0.52kPa
09:00
-1.5°C 10°C 7.9°C - 15% 0.52kPa
10:00
-1.5°C 11°C 8°C - 6% 0.53kPa
11:00
-1.5°C 12°C 8.1°C - 50% 0.53kPa
12:00
-1.4°C 13°C 8.2°C - 22% 0.53kPa
13:00
-1.2°C 14°C 8°C - 5% 0.52kPa
14:00
-0.8°C 14°C 8.1°C - 5% 0.51kPa
15:00
-0.6°C 14°C 8.4°C - 5% 0.52kPa
16:00
-0.5°C 14°C 8.5°C - 5% 0.51kPa
17:00
-0.2°C 13°C 8.4°C - 45% 0.5kPa
18:00
0°C 12°C 8.3°C - 100% 0.48kPa
19:00
0.1°C 11°C 8.4°C - 48% 0.48kPa
20:00
0.3°C 11°C 8.4°C - 100% 0.48kPa
21:00
0.6°C 10°C 8.6°C - 100% 0.48kPa
22:00
0.6°C 9.8°C 8.8°C - 100% 0.49kPa
23:00
0.5°C 9.5°C 8.6°C - 100% 0.48kPa
Tue, Feb 24 Sunrise 06:31 Sunset 17:41
24:00
0.5°C 9.1°C 8.4°C - 99% 0.47kPa
01:00
0.4°C 8.8°C 8.2°C - 100% 0.46kPa
02:00
0.4°C 8.5°C 8°C - 100% 0.44kPa
03:00
0.5°C 8.3°C 8°C - 100% 0.44kPa
04:00
0.5°C 8.1°C 7.9°C - 100% 0.43kPa
05:00
0.6°C 7.8°C 7.8°C - 100% 0.42kPa
06:00
0.7°C 7.6°C 7.5°C - 100% 0.4kPa
07:00
0.8°C 7.4°C 7.5°C - 100% 0.39kPa
08:00
0.8°C 7.6°C 7.8°C - 100% 0.41kPa
09:00
0.8°C 8.2°C 8.4°C - 100% 0.46kPa
10:00
0.6°C 9.3°C 9.2°C - 100% 0.53kPa
11:00
0.6°C 10°C 10°C - 100% 0.58kPa
12:00
0.7°C 11°C 11°C - 100% 0.66kPa
13:00
1.9°C 12°C 12°C - 100% 0.67kPa
14:00
2.7°C 13°C 12°C - 100% 0.68kPa
15:00
3.2°C 13°C 12°C - 100% 0.66kPa
16:00
3.5°C 13°C 12°C - 100% 0.59kPa
17:00
3.8°C 13°C 11°C - 100% 0.52kPa
18:00
3.9°C 12°C 11°C - 100% 0.47kPa
19:00
4.4°C 12°C 10°C - 100% 0.42kPa
20:00
5.4°C 12°C 9.2°C - 100% 0.26kPa
21:00
5.5°C 11°C 9.3°C - 100% 0.27kPa
22:00
5.8°C 11°C 9°C - 100% 0.23kPa
23:00
6.5°C 10°C 8.7°C - 100% 0.16kPa
Wed, Feb 25 Sunrise 06:30 Sunset 17:42
24:00
7°C 10°C 8.6°C - 100% 0.11kPa
01:00
6.6°C 9.9°C 8.7°C - 100% 0.14kPa
02:00
5.9°C 9.6°C 8.2°C - 100% 0.16kPa
03:00
5.6°C 9.3°C 7.4°C - 100% 0.12kPa
04:00
5.6°C 9°C 7.3°C - 100% 0.11kPa
05:00
5.5°C 8.7°C 7.5°C - 100% 0.13kPa
06:00
5.6°C 8.6°C 7.5°C - 100% 0.12kPa
07:00
5.6°C 8.4°C 7.7°C - 100% 0.14kPa
08:00
5.6°C 8.3°C 7.6°C - 100% 0.13kPa
09:00
5.8°C 8.3°C 7.9°C - 100% 0.14kPa
10:00
5.8°C 8.7°C 8.2°C - 100% 0.17kPa
11:00
5.8°C 9.1°C 8.6°C - 100% 0.2kPa
12:00
5.7°C 9.5°C 9°C - 100% 0.23kPa
13:00
5.9°C 9.4°C 9°C - 100% 0.22kPa
14:00
6°C 9.3°C 9°C - 100% 0.21kPa
15:00
6.1°C 9.2°C 9.1°C - 100% 0.21kPa
16:00
6.2°C 9°C 8.9°C - 68% 0.2kPa
17:00
6.2°C 8.7°C 8.8°C - 35% 0.18kPa
18:00
6.3°C 8.5°C 8.7°C - 3% 0.17kPa
19:00
6.2°C 8.3°C 8.6°C - 2% 0.17kPa
20:00
6°C 8.1°C 8.4°C - 2% 0.17kPa
21:00
5.9°C 7.9°C 8.3°C - 2% 0.16kPa
22:00
6°C 7.7°C 8.2°C - 1% 0.15kPa
23:00
6°C 7.5°C 8.1°C - 1% 0.15kPa
Thu, Feb 26 Sunrise 06:29 Sunset 17:43
24:00
6.1°C 7.3°C 8.1°C - 0% 0.14kPa
01:00
6.2°C 7.8°C 8.6°C - 1% 0.17kPa
02:00
6.3°C 8.2°C 9.2°C - 1% 0.21kPa
03:00
6.4°C 8.6°C 9.8°C - 2% 0.25kPa
How to read: these inputs help produce the derived score; they are not requirements by themselves.

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