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More Morning Frost in Japan
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Rule Morning Frost

Nikko - Morning Frost - Japan

Nikkō, Tochigi, 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 88% failing
Wind Speed 86% failing

Currently

Real-time conditions
Frost Probability
34%
Soil Temperature5.3°C
Dew Point1.8°C (low dew point)
Wind Speed3.0m/s (calm conditions)
Cloud Cover69%

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
10:00✕49%0.37m/s
11:00✕47%0.93m/s
12:00✕45%1.8m/s
13:00✕45%1.9m/s
14:00✕45%2m/s
15:00✕45%2.2m/s
16:00✕4.7%2.5m/s
17:00✕4.7%2.1m/s
18:00✕54%1.1m/s
19:00✕50%1.2m/s
20:00✕54%0.94m/s
21:00✕50%0.93m/s
22:00✕47%0.6m/s
23:00✕41%1.4m/s
Thu, Apr 9
24:00✕34%1.5m/s
01:00✕26%1.4m/s
02:00✕23%1.3m/s
03:00✕34%1.3m/s
04:00✓32%1.8m/s
05:00✓32%1.8m/s
06:00✓41%1.7m/s
07:00✕35%1.6m/s
08:00✕35%2.2m/s
09:00✕39%2.6m/s
10:00✕34%3m/s
11:00✕33%3m/s
12:00✕2.9%3m/s
13:00✕3.2%3.2m/s
14:00✕0%2.7m/s
15:00✕0%2.4m/s
16:00✕0%2.2m/s
17:00✕0%1.1m/s
18:00✕0%0.3m/s
19:00✕0%0.41m/s
20:00✕0%0.46m/s
21:00✕0%1.1m/s
22:00✕0%1.2m/s
23:00✕2.9%1.5m/s
Fri, Apr 10
24:00✕2.1%1.5m/s
01:00✕1.9%2m/s
02:00✕1.9%2.1m/s
03:00✕1.6%2.1m/s
04:00✓1.8%1.2m/s
05:00✓1.2%1.8m/s
06:00✓1.4%1.7m/s
07:00✕1.2%1.9m/s
08:00✕1.4%1.6m/s
09:00✕1.9%2m/s
10:00✕1.6%1.9m/s
11:00✕1.9%2.5m/s
12:00✕1.6%2.2m/s
13:00✕0%2m/s
14:00✕0%2.4m/s
15:00✕0%1.8m/s
16:00✕0%2.2m/s
17:00✕0%2.3m/s
18:00✕0%2.2m/s
19:00✕0%1.8m/s
20:00✕0%1.8m/s
21:00✕0%2.2m/s
22:00✕0%2.2m/s
23:00✕0%2.7m/s
Sat, Apr 11
24:00✕0%3m/s
01:00✕0%2.6m/s
02:00✕0%2.3m/s
03:00✕0%2.2m/s
04:00✓0%2.2m/s
05:00✓0%2.1m/s
06:00✓0%2m/s
07:00✕0%1.1m/s
08:00✕0%1.2m/s
09:00✕0%1.6m/s
10:00✕0%2m/s
11:00✕0%2.4m/s
12:00✕0%2.9m/s
13:00✕0%4.2m/s
14:00✕0%4.2m/s
15:00✕0%3.9m/s
16:00✕0%3.5m/s
17:00✕0%3m/s
18:00✕32%2.6m/s
19:00✕43%2.8m/s
20:00✕41%3m/s
21:00✕50%3.2m/s
22:00✕50%3.3m/s
23:00✕50%3.5m/s
Sun, Apr 12
24:00✕50%3.7m/s
01:00✕50%3.6m/s
02:00✕46%3.6m/s
03:00✕39%3.5m/s
04:00✓37%3.6m/s
05:00✓37%3.8m/s
06:00✓3.6%3.9m/s
07:00✕3.4%3.5m/s
08:00✕3.4%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
Asia/Tokyo
Dew Point
°C
Surface Temperature
°C
Temperature
°C
Time Window
Total Cloud Coverage
%
Vapor Pressure Deficit
kPa
Thu, Apr 9 Sunrise 05:15 Sunset 18:10
10:00 ☾
1.8°C 5.3°C 10°C - 69% 0.53kPa
11:00 ☾
2.4°C 6°C 11°C - 100% 0.58kPa
12:00 ☾
2.6°C 6.8°C 11°C - 100% 0.61kPa
13:00 ☾
2.4°C 7.5°C 11°C - 100% 0.6kPa
14:00 ☾
2.4°C 8.1°C 11°C - 100% 0.62kPa
15:00 ☾
2.2°C 8.5°C 11°C - 100% 0.58kPa
16:00 ☾
2.2°C 8.7°C 10°C - 100% 0.52kPa
17:00 ☾
3.4°C 8.8°C 8.6°C - 100% 0.34kPa
18:00 ☾
3.1°C 8.6°C 6.9°C - 100% 0.23kPa
19:00 ☾
3°C 8.6°C 6.4°C - 100% 0.2kPa
20:00 ☾
3.2°C 8.4°C 6.1°C - 100% 0.18kPa
21:00 ☾
3.2°C 8.2°C 6.2°C - 100% 0.18kPa
22:00 ☾
3.1°C 8.1°C 6.2°C - 100% 0.18kPa
23:00 ☾
3.1°C 8°C 6.2°C - 98% 0.19kPa
Fri, Apr 10 Sunrise 05:15 Sunset 18:10
24:00 ☾
3.5°C 7.9°C 6°C - 90% 0.15kPa
01:00 ☾
3.7°C 7.7°C 5.8°C - 84% 0.13kPa
02:00 ☾
3.6°C 7.6°C 5.4°C - 100% 0.11kPa
03:00 ☾
3.7°C 7.4°C 5.2°C - 100% 0.09kPa
04:00 ☾
4.3°C 7.3°C 5.7°C - 100% 0.08kPa
05:00 ☾
4.7°C 7.2°C 5.7°C - 100% 0.06kPa
06:00 ☾
5°C 7.1°C 5.9°C - 100% 0.06kPa
07:00 ☾
5.1°C 7.1°C 5.8°C - 100% 0.04kPa
08:00 ☾
5.3°C 7.1°C 6.3°C - 100% 0.06kPa
09:00 ☾
5.6°C 7.1°C 7.2°C - 100% 0.11kPa
10:00 ☾
5.8°C 7.2°C 7°C - 99% 0.08kPa
11:00 ☾
7.7°C 7.4°C 9.7°C - 100% 0.15kPa
12:00 ☾
7.7°C 7.6°C 8.9°C - 100% 0.09kPa
13:00 ☾
8.9°C 8°C 11°C - 100% 0.2kPa
14:00 ☾
9°C 8.3°C 11°C - 100% 0.18kPa
15:00 ☾
8.9°C 8.6°C 11°C - 100% 0.14kPa
16:00 ☾
8.9°C 8.6°C 9.4°C - 100% 0.04kPa
17:00 ☾
9.5°C 8.8°C 11°C - 100% 0.1kPa
18:00 ☾
9.4°C 8.9°C 10°C - 100% 0.09kPa
19:00 ☾
9.2°C 9°C 10°C - 99% 0.09kPa
20:00 ☾
8.9°C 9°C 10°C - 59% 0.09kPa
21:00 ☾
8.5°C 8.9°C 9.8°C - 5% 0.1kPa
22:00 ☾
8.3°C 8.9°C 9.7°C - 100% 0.12kPa
23:00 ☾
8.3°C 8.8°C 10°C - 100% 0.13kPa
Sat, Apr 11 Sunrise 05:14 Sunset 18:11
24:00 ☾
8.3°C 8.9°C 10°C - 100% 0.14kPa
01:00 ☾
8°C 8.9°C 9.7°C - 100% 0.13kPa
02:00 ☾
7.6°C 8.8°C 9.2°C - 100% 0.12kPa
03:00 ☾
7.5°C 8.7°C 9°C - 100% 0.11kPa
04:00 ☾
7.4°C 8.7°C 8.9°C - 100% 0.11kPa
05:00 ☾
7.2°C 8.5°C 8.4°C - 77% 0.09kPa
06:00 ☾
7.4°C 8.5°C 8.7°C - 88% 0.09kPa
07:00 ☾
8.3°C 8.6°C 11°C - 100% 0.21kPa
08:00 ☾
7.4°C 9°C 13°C - 2% 0.43kPa
09:00 ☾
6.3°C 9.5°C 14°C - 1% 0.62kPa
10:00 ☾
5.1°C 10°C 15°C - 0% 0.8kPa
11:00 ☾
2.8°C 11°C 16°C - 0% 1.1kPa
12:00 ☾
1.7°C 12°C 17°C - 0% 1.2kPa
13:00 ☾
1.9°C 12°C 16°C - 0% 1.2kPa
14:00 ☾
2.3°C 13°C 16°C - 0% 1.1kPa
15:00 ☾
1.3°C 13°C 14°C - 2% 0.98kPa
16:00 ☾
1.3°C 11°C 9.6°C - 2% 0.52kPa
17:00 ☾
0.1°C 8.4°C 4.8°C - 2% 0.24kPa
18:00 ☾
-2°C 6°C -0.12°C - 2% 0.08kPa
19:00 ☾
-3.6°C 5.8°C -0.28°C - 1% 0.13kPa
20:00 ☾
-5.3°C 5.6°C -0.45°C - 1% 0.18kPa
21:00 ☾
-7.3°C 5.4°C -0.61°C - 0% 0.23kPa
22:00 ☾
-6.8°C 5.1°C 0.06°C - 0% 0.25kPa
23:00 ☾
-6.3°C 4.7°C 0.73°C - 0% 0.26kPa
Sun, Apr 12 Sunrise 05:12 Sunset 18:11
24:00 ☾
-5.9°C 4.4°C 1.4°C - 0% 0.28kPa
01:00 ☾
-5.9°C 4.5°C 3.7°C - 0% 0.4kPa
02:00 ☾
-6.3°C 4.6°C 5.9°C - 0% 0.55kPa
03:00 ☾
-7.4°C 4.7°C 8.2°C - 0% 0.74kPa
04:00 ☾
-7.3°C 5.2°C 9.3°C - 0% 0.82kPa
05:00 ☾
-7.4°C 5.7°C 10°C - 0% 0.9kPa
06:00 ☾
-7.5°C 6.2°C 11°C - 0% 1kPa
07:00 ☾
-7.3°C 6.8°C 12°C - 0% 1kPa
08:00 ☾
-7.1°C 7.5°C 12°C - 0% 1kPa
09:00 ☾
-7°C 8.2°C 12°C - 0% 1.1kPa
How to read: these inputs help produce the derived score; they are not requirements by themselves.

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