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Rule Morning Frost

Hakone - Morning Frost - Japan

Hakone, 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
Time Window 88% failing
Wind Speed 79% failing

Currently

Real-time conditions
Frost Probability
0%
Soil Temperature9.6°C
Dew Point10.3°C (moderate dew point)
Wind Speed4.7m/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
Sun, Feb 22
04:00✕45%1.7m/s
05:00✓43%1.7m/s
06:00✓39%1.8m/s
07:00✓41%1.7m/s
08:00✕50%1.4m/s
09:00✕46%1.9m/s
10:00✕4.9%2.6m/s
11:00✕3.9%3.1m/s
12:00✕0%3.5m/s
13:00✕0%4.3m/s
14:00✕0%4.6m/s
15:00✕0%4.2m/s
16:00✕0%4.5m/s
17:00✕0%4.1m/s
18:00✕0%4.3m/s
19:00✕0%4.7m/s
20:00✕0%5.1m/s
21:00✕0%5.4m/s
22:00✕0%5.3m/s
23:00✕0%4.4m/s
Mon, Feb 23
24:00✕0%5.2m/s
01:00✕0%4.8m/s
02:00✕0%4.5m/s
03:00✕0%4.8m/s
04:00✕0%4.7m/s
05:00✓0%4.8m/s
06:00✓0%5.2m/s
07:00✓0%4.8m/s
08:00✕0%3.6m/s
09:00✕0%3.1m/s
10:00✕0%2.9m/s
11:00✕0%3.5m/s
12:00✕0%4.1m/s
13:00✕0%4.8m/s
14:00✕0%5m/s
15:00✕0%4.7m/s
16:00✕0%4.3m/s
17:00✕0%3.8m/s
18:00✕0%2.5m/s
19:00✕0%1.8m/s
20:00✕0%1.2m/s
21:00✕0%0.83m/s
22:00✕0%0.68m/s
23:00✕0%1.2m/s
Tue, Feb 24
24:00✕0%1.2m/s
01:00✕0%1.1m/s
02:00✕0%0.94m/s
03:00✕0%1.2m/s
04:00✕0%1.1m/s
05:00✓0%0.87m/s
06:00✓1.4%0.93m/s
07:00✓1.4%1.1m/s
08:00✕2.1%1m/s
09:00✕0%0.96m/s
10:00✕0%1.8m/s
11:00✕0%2.4m/s
12:00✕0%2.9m/s
13:00✕0%3.3m/s
14:00✕0%3.4m/s
15:00✕0%3.1m/s
16:00✕0%2.8m/s
17:00✕0%2.3m/s
18:00✕0%2.3m/s
19:00✕0%2.6m/s
20:00✕0%2.4m/s
21:00✕0%2.7m/s
22:00✕0%2.9m/s
23:00✕0%2.9m/s
Wed, Feb 25
24:00✕0%3.5m/s
01:00✕0%3.9m/s
02:00✕0%4.2m/s
03:00✕0%4.1m/s
04:00✕0%3.8m/s
05:00✓0%3.5m/s
06:00✓0%2.8m/s
07:00✓0%2.3m/s
08:00✕0%2m/s
09:00✕0%1m/s
10:00✕0%2.8m/s
11:00✕0%4.5m/s
12:00✕0%6.3m/s
13:00✕0%6.4m/s
14:00✕0%6.5m/s
15:00✕0%6.6m/s
16:00✕0%6.5m/s
17:00✕0%6.4m/s
18:00✕0%6.4m/s
19:00✕0%6.3m/s
20:00✕0%6.2m/s
21:00✕1%6.1m/s
22:00✕1%6.1m/s
23:00✕1%6.1m/s
Thu, Feb 26
24:00✕1.1%6.1m/s
01:00✕1.4%5.9m/s
02:00✕1.4%5.7m/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 06:21 Sunset 17:32
04:00 ☾
10°C 9.6°C 11°C - 100% 0.04kPa
05:00 ☾
11°C 9.7°C 11°C - 100% 0.04kPa
06:00 ☾
11°C 9.8°C 11°C - 100% 0.03kPa
07:00 ☾
11°C 9.9°C 11°C - 100% 0.03kPa
08:00 ☾
11°C 10°C 12°C - 100% 0.05kPa
09:00 ☾
11°C 10°C 12°C - 96% 0.08kPa
10:00 ☾
11°C 10°C 12°C - 79% 0.08kPa
11:00 ☾
11°C 11°C 13°C - 65% 0.22kPa
12:00 ☾
11°C 12°C 14°C - 35% 0.35kPa
13:00 ☾
10°C 13°C 16°C - 4% 0.53kPa
14:00 ☾
9.6°C 13°C 16°C - 0% 0.63kPa
15:00 ☾
9°C 14°C 16°C - 0% 0.66kPa
16:00 ☾
8.5°C 14°C 15°C - 0% 0.62kPa
17:00 ☾
8.4°C 14°C 14°C - 0% 0.49kPa
18:00 ☾
7.8°C 13°C 12°C - 26% 0.39kPa
19:00 ☾
7.3°C 13°C 12°C - 7% 0.34kPa
20:00 ☾
6.5°C 12°C 11°C - 5% 0.34kPa
21:00 ☾
5.7°C 12°C 10°C - 2% 0.35kPa
22:00 ☾
5.2°C 11°C 9.9°C - 4% 0.34kPa
23:00 ☾
5.1°C 10°C 9.4°C - 3% 0.3kPa
Tue, Feb 24 Sunrise 06:20 Sunset 17:33
24:00 ☾
5.3°C 10°C 8.8°C - 1% 0.24kPa
01:00 ☾
5.8°C 9.6°C 8.3°C - 5% 0.17kPa
02:00 ☾
6.2°C 9.1°C 7.8°C - 5% 0.11kPa
03:00 ☾
6.4°C 8.8°C 7.4°C - 30% 0.07kPa
04:00 ☾
6.2°C 8.4°C 7°C - 94% 0.05kPa
05:00 ☾
6°C 8.1°C 6.7°C - 81% 0.04kPa
06:00 ☾
5.8°C 7.8°C 6.6°C - 96% 0.05kPa
07:00 ☾
5.8°C 7.7°C 6.8°C - 99% 0.06kPa
08:00 ☾
6°C 7.8°C 7.9°C - 100% 0.13kPa
09:00 ☾
5.7°C 8.3°C 9.3°C - 100% 0.25kPa
10:00 ☾
5°C 9.1°C 11°C - 100% 0.45kPa
11:00 ☾
4.3°C 10°C 13°C - 59% 0.64kPa
12:00 ☾
3.9°C 11°C 14°C - 100% 0.82kPa
13:00 ☾
4.4°C 12°C 14°C - 100% 0.79kPa
14:00 ☾
5.5°C 13°C 14°C - 100% 0.71kPa
15:00 ☾
6.4°C 13°C 14°C - 100% 0.6kPa
16:00 ☾
7.1°C 13°C 13°C - 80% 0.47kPa
17:00 ☾
7.6°C 13°C 12°C - 100% 0.33kPa
18:00 ☾
8.2°C 12°C 11°C - 100% 0.23kPa
19:00 ☾
9.2°C 12°C 11°C - 100% 0.12kPa
20:00 ☾
9.8°C 12°C 10°C - 100% 0.05kPa
21:00 ☾
10°C 12°C 11°C - 100% 0.05kPa
22:00 ☾
10°C 11°C 11°C - 100% 0.05kPa
23:00 ☾
10°C 11°C 11°C - 100% 0.05kPa
Wed, Feb 25 Sunrise 06:19 Sunset 17:34
24:00 ☾
11°C 11°C 11°C - 100% 0.05kPa
01:00 ☾
10°C 11°C 11°C - 100% 0.06kPa
02:00 ☾
10°C 11°C 11°C - 100% 0.08kPa
03:00 ☾
11°C 11°C 11°C - 100% 0.06kPa
04:00 ☾
11°C 11°C 11°C - 100% 0.05kPa
05:00 ☾
11°C 11°C 11°C - 100% 0.07kPa
06:00 ☾
11°C 11°C 11°C - 100% 0.05kPa
07:00 ☾
11°C 11°C 11°C - 100% 0.03kPa
08:00 ☾
11°C 11°C 12°C - 100% 0.04kPa
09:00 ☾
11°C 11°C 12°C - 100% 0.04kPa
10:00 ☾
9.9°C 11°C 10°C - 100% 0.04kPa
11:00 ☾
8.6°C 11°C 9.1°C - 100% 0.04kPa
12:00 ☾
7.4°C 10°C 7.9°C - 100% 0.03kPa
13:00 ☾
6.9°C 10°C 7.4°C - 100% 0.04kPa
14:00 ☾
6.4°C 9.7°C 7°C - 100% 0.04kPa
15:00 ☾
5.8°C 9.4°C 6.6°C - 100% 0.05kPa
16:00 ☾
5.7°C 9.1°C 6.4°C - 100% 0.05kPa
17:00 ☾
5.5°C 8.8°C 6.2°C - 100% 0.05kPa
18:00 ☾
5.3°C 8.5°C 6°C - 100% 0.05kPa
19:00 ☾
5.1°C 8.3°C 6°C - 100% 0.06kPa
20:00 ☾
4.9°C 8.1°C 6°C - 100% 0.07kPa
21:00 ☾
4.7°C 7.9°C 6°C - 100% 0.08kPa
22:00 ☾
4.3°C 7.7°C 5.8°C - 93% 0.09kPa
23:00 ☾
4°C 7.4°C 5.5°C - 85% 0.09kPa
Thu, Feb 26 Sunrise 06:18 Sunset 17:35
24:00 ☾
3.6°C 7.2°C 5.3°C - 78% 0.1kPa
01:00 ☾
3.7°C 7.2°C 5.6°C - 71% 0.12kPa
02:00 ☾
3.7°C 7.1°C 6°C - 64% 0.14kPa
03:00 ☾
3.7°C 7.1°C 6.3°C - 58% 0.16kPa
How to read: these inputs help produce the derived score; they are not requirements by themselves.

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