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Rule Morning Frost

Kyoto - Morning Frost - Japan

Kyoto, Kyoto, 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 85% failing
Wind Speed 57% failing

Currently

Real-time conditions
Soil Temperature14.1°C
Dew Point6.8°C (moderate dew point)
Wind Speed2.0m/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 74 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
Thu, Apr 9
13:000%3.7m/s
14:000%3.7m/s
15:000%2.8m/s
16:000%2m/s
17:000%2.3m/s
18:000%3.2m/s
19:000%2.6m/s
20:000%2.8m/s
21:000%3.5m/s
22:000%1.6m/s
23:000%1.6m/s
Fri, Apr 10
24:000%2.3m/s
01:000%1.6m/s
02:000%1.1m/s
03:000%1.4m/s
04:000%0.5m/s
05:000%0.77m/s
06:000%1.4m/s
07:000%1.5m/s
08:000%1.6m/s
09:000%1.7m/s
10:000%1.9m/s
11:000%1.2m/s
12:000%1.3m/s
13:000%1.4m/s
14:000%0.68m/s
15:000%0.82m/s
16:000%0.32m/s
17:000%1.7m/s
18:000%2.1m/s
19:000%2m/s
20:000%2m/s
21:000%1.6m/s
22:000%1.5m/s
23:000%1.4m/s
Sat, Apr 11
24:000%1.8m/s
01:000%1.5m/s
02:000%1.3m/s
03:000%1.4m/s
04:000%1.6m/s
05:000%1.9m/s
06:000%1.8m/s
07:000%1.7m/s
08:000%2m/s
09:000%3m/s
10:000%3.5m/s
11:000%4.3m/s
12:000%4.3m/s
13:000%4.3m/s
14:000%5.3m/s
15:000%6.3m/s
16:000%6.4m/s
17:000%5.3m/s
18:000%4.1m/s
19:000%3.1m/s
20:000%2.5m/s
21:000%2.4m/s
22:000%1.6m/s
23:000%0.87m/s
Sun, Apr 12
24:000%0.11m/s
01:000%0.33m/s
02:000%0.56m/s
03:000%0.79m/s
04:000%0.93m/s
05:000%1.1m/s
06:000%1.2m/s
07:000%1.3m/s
08:000%1.5m/s
09:000%1.6m/s
10:000%1.4m/s
11:000%1.2m/s
12:000%0.97m/s
13:000%0.99m/s
14:000%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 05:32 Sunset 18:24
16:00
6.8°C 14°C 14°C - 100% 0.62kPa
17:00
8.5°C 14°C 13°C - 100% 0.43kPa
18:00
10°C 14°C 13°C - 100% 0.23kPa
19:00
10°C 13°C 12°C - 100% 0.2kPa
20:00
10°C 13°C 12°C - 100% 0.14kPa
21:00
11°C 13°C 12°C - 100% 0.15kPa
22:00
11°C 13°C 12°C - 100% 0.1kPa
23:00
12°C 12°C 12°C - 100% 0.07kPa
Fri, Apr 10 Sunrise 05:32 Sunset 18:24
24:00
12°C 12°C 12°C - 100% 0.04kPa
01:00
12°C 12°C 12°C - 100% 0.03kPa
02:00
12°C 12°C 12°C - 100% 0.02kPa
03:00
12°C 12°C 12°C - 100% 0.02kPa
04:00
12°C 12°C 12°C - 100% 0.02kPa
05:00
12°C 12°C 12°C - 100% 0.02kPa
06:00
12°C 12°C 13°C - 100% 0.03kPa
07:00
12°C 12°C 13°C - 100% 0.04kPa
08:00
13°C 12°C 13°C - 100% 0.06kPa
09:00
13°C 13°C 14°C - 100% 0.09kPa
10:00
13°C 13°C 14°C - 100% 0.03kPa
11:00
14°C 13°C 14°C - 100% 0.03kPa
12:00
14°C 13°C 14°C - 100% 0.02kPa
13:00
14°C 13°C 14°C - 100% 0.01kPa
14:00
14°C 13°C 14°C - 100% 0.01kPa
15:00
14°C 13°C 14°C - 100% 0.01kPa
16:00
15°C 13°C 15°C - 100% 0.02kPa
17:00
15°C 14°C 16°C - 73% 0.04kPa
18:00
16°C 14°C 16°C - 78% 0.07kPa
19:00
16°C 14°C 16°C - 70% 0.08kPa
20:00
15°C 14°C 16°C - 96% 0.06kPa
21:00
15°C 14°C 16°C - 100% 0.04kPa
22:00
15°C 14°C 16°C - 100% 0.03kPa
23:00
15°C 14°C 15°C - 88% 0.03kPa
Sat, Apr 11 Sunrise 05:31 Sunset 18:24
24:00
15°C 14°C 15°C - 62% 0.02kPa
01:00
14°C 14°C 14°C - 62% 0.03kPa
02:00
14°C 14°C 14°C - 98% 0.06kPa
03:00
13°C 14°C 14°C - 95% 0.06kPa
04:00
13°C 13°C 14°C - 38% 0.06kPa
05:00
13°C 13°C 13°C - 84% 0.06kPa
06:00
13°C 13°C 13°C - 87% 0.07kPa
07:00
13°C 13°C 14°C - 100% 0.16kPa
08:00
12°C 13°C 15°C - 100% 0.26kPa
09:00
12°C 14°C 15°C - 81% 0.33kPa
10:00
9.8°C 14°C 16°C - 4% 0.55kPa
11:00
8.8°C 15°C 18°C - 0% 0.9kPa
12:00
7.3°C 16°C 19°C - 1% 1.2kPa
13:00
6.4°C 18°C 20°C - 4% 1.4kPa
14:00
5°C 18°C 21°C - 4% 1.6kPa
15:00
4.2°C 19°C 20°C - 2% 1.4kPa
16:00
4.9°C 19°C 18°C - 0% 1.2kPa
17:00
5.5°C 18°C 16°C - 0% 0.92kPa
18:00
6.4°C 17°C 14°C - 4% 0.65kPa
19:00
6.8°C 16°C 13°C - 0% 0.49kPa
20:00
7°C 16°C 12°C - 5% 0.42kPa
21:00
6.8°C 15°C 11°C - 11% 0.37kPa
22:00
6.2°C 13°C 11°C - 40% 0.32kPa
23:00
5.5°C 12°C 9.6°C - 70% 0.29kPa
Sun, Apr 12 Sunrise 05:29 Sunset 18:25
24:00
4.8°C 10°C 8.6°C - 100% 0.25kPa
01:00
4.8°C 11°C 10°C - 100% 0.4kPa
02:00
4.6°C 11°C 12°C - 100% 0.57kPa
03:00
4°C 12°C 14°C - 100% 0.78kPa
04:00
3.8°C 13°C 16°C - 69% 0.97kPa
05:00
3.3°C 14°C 17°C - 37% 1.2kPa
06:00
2.5°C 16°C 19°C - 6% 1.5kPa
07:00
2.3°C 17°C 20°C - 35% 1.5kPa
08:00
2.1°C 18°C 20°C - 65% 1.6kPa
09:00
1.9°C 19°C 20°C - 94% 1.7kPa
10:00
2.9°C 18°C 19°C - 96% 1.5kPa
11:00
3.6°C 18°C 18°C - 98% 1.3kPa
12:00
4.2°C 18°C 17°C - 100% 1.1kPa
13:00
4.1°C 17°C 16°C - 100% 1kPa
14:00
4°C 17°C 16°C - 100% 0.98kPa
15:00
3.8°C 16°C 15°C - 100% 0.92kPa
How to read: these inputs help produce the derived score; they are not requirements by themselves.

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