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Rule Fog Hunter

Fog Hunter Forecast for Nikko, Japan

Nikkō, Tochigi, Japan

Nikko combines the carved buildings of Toshogu with cedar avenues, stone lanterns, waterfalls, and steep forested gorges for layered frames.

Currently

Real-time conditions
Fog Probability
0%
Dewpoint Spread1.5°C
Visibility24135 (Clear)
Relative Humidity91%
Wind Speed1.3m/s (calm conditions)

Upcoming Opportunities

When all conditions match, PhotoWeather marks an opportunity window.

Times shown in Asia/Tokyo
fog weather icon
Next opportunity
Dense Fog at Sunset
Nikko
Sat, Aug 29 · 18:00–19:00 · 1h window
Medium confidence
62%
🌫️Fog Probability100%
Dewpoint Spread: 0.1°C
Visibility: 119 (Dense fog)
Relative Humidity: 99%
Wind Speed: 1.1m/s (calm conditions)
fog weather icon
Dense Fog
Nikko
Sat, Aug 29 · 19:00–02:00
🌫️Fog Probability:77.1-100%
High
fog weather icon
Fog Potential at Sunset
Nikko
Sun, Aug 30 · 17:00–19:00
🌫️Fog Probability:86%
Medium
fog weather icon
Fog Potential
Nikko
Sun, Aug 30 · 19:00–20:00
🌫️Fog Probability:86%
Medium

How this forecast is evaluated

See which weather signals PhotoWeather uses to identify Fog Hunter conditions across Japan. The requirements and hourly values below show how those signals apply at Nikko.

Explore Fog Hunter conditions across Japan →

Recorded match history

Completed PhotoWeather forecast matches recorded for this exact rule at Nikko during the last 365 days.

Last 30 days
22
recorded matching windows · 87% average confidence
Last 90 days
55
recorded matching windows · 86% average confidence
Last 365 days
72
recorded matching windows · 88% average confidence
Most frequent recorded start hour

22:00 local time, shared by 18 of 72 matches recorded in the last 365 days.

These figures use completed PhotoWeather MatchEvent records from the previous 365 days only. They describe recorded forecast matches, not observations, climatological probability, or a guarantee of future conditions.

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95-hour requirements breakdown

When available, the detailed table below covers only the stated 95-hour horizon (typically 72–168 hours, depending on available hourly data). Opportunity records above span the next 14 days, so this table does not explain that entire 14-day period.

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
Fog Probability
≥ 75.0%
Sat, Aug 22
04:000%
05:000%
06:000%
07:000%
08:000%
09:000%
10:000%
11:000%
12:000%
13:000%
14:000%
15:000%
16:000%
17:000%
18:000%
19:000%
20:000%
21:000%
22:000%
23:0029%
Sun, Aug 23
24:000%
01:000%
02:000%
03:000%
04:000%
05:000%
06:000%
07:000%
08:000%
09:000%
10:000%
11:000%
12:000%
13:000%
14:000%
15:000%
16:000%
17:000%
18:000%
19:000%
20:000%
21:000%
22:0069%
23:0060%
Mon, Aug 24
24:0033%
01:0037%
02:0032%
03:0033%
04:0053%
05:000%
06:000%
07:000%
08:000%
09:000%
10:000%
11:000%
12:000%
13:000%
14:000%
15:000%
16:000%
17:000%
18:000%
19:000%
20:000%
21:000%
22:000%
23:000%
Tue, Aug 25
24:000%
01:000%
02:000%
03:000%
04:000%
05:000%
06:000%
07:000%
08:000%
09:000%
10:000%
11:000%
12:000%
13:000%
14:000%
15:000%
16:000%
17:000%
18:000%
19:000%
20:000%
21:000%
22:000%
23:0030%
Wed, Aug 26
24:0058%
01:000%
02:000%
How to read: colored cells show whether each predicate requirement is met; highlighted rows mean the full rule matched (an opportunity).

What does Fog 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
Clear Sky Probability (Ensemble)
%
Dew Point
°C
Rainfall
mm
Relative Humidity
%
Snowfall
cm
Solar Elevation
°
Temperature
°C
Total Precipitation
mm
Vapor Pressure Deficit
kPa
Visibility
m
Wind Gusts
m/s
Wind Speed
m/s
Sun, Aug 23 Sunrise 05:04 Sunset 18:24
05:00 ☾
4% 14°C 0mm 91% 0cm -1.6° 16°C 0.06mm 0.17kPa 24135m 1.2m/s 1.3m/s
06:00 ☾
5% 15°C 0mm 89% 0cm 10° 17°C 0.06mm 0.21kPa 24135m 1m/s 1.1m/s
07:00 ☾
3% 16°C 0mm 85% 0cm 22° 19°C 0.06mm 0.33kPa 24134m 0.71m/s 0.47m/s
08:00 ☾
2% 17°C 0mm 83% 0cm 34° 20°C 0.13mm 0.41kPa 24134m 0.73m/s 1.1m/s
09:00
0% 18°C 0mm 80% 0cm 45° 21°C 0.13mm 0.5kPa 24134m 1.1m/s 1.5m/s
10:00
0% 18°C 0mm 79% 0cm 56° 22°C 0.19mm 0.54kPa 13521m 1.5m/s 1.7m/s
11:00
0% 19°C 0.02mm 91% 0cm 63° 20°C 1.3mm 0.23kPa 2338m 1.2m/s 1.4m/s
12:00
0% 19°C 0.01mm 90% 0cm 64° 21°C 3mm 0.25kPa 7192m 1.2m/s 0.72m/s
13:00
0% 19°C 0mm 94% 0cm 60° 20°C 4.4mm 0.15kPa 15446m 0.72m/s 0.58m/s
14:00
0% 19°C 0mm 89% 0cm 50° 21°C 5.5mm 0.26kPa 14856m 1m/s 0.64m/s
15:00
0% 19°C 0mm 90% 0cm 39° 20°C 6.6mm 0.23kPa 6421m 0.92m/s 0.67m/s
16:00
2% 19°C 0mm 92% 0cm 28° 20°C 0.88mm 0.19kPa 4574m 0.9m/s 0.63m/s
17:00
4% 19°C 0mm 94% 0cm 16° 20°C 1.6mm 0.14kPa 14912m 0.93m/s 0.96m/s
18:00
6% 18°C 0mm 99% 0cm 3.9° 19°C 2mm 0.03kPa 3402m 1.1m/s 0.98m/s
19:00 ☾
6% 18°C 0mm 99% 0cm -7.8° 18°C 2.7mm 0.01kPa 1274m 1.2m/s 1m/s
20:00 ☾
5% 18°C 0mm 100% 0cm -19° 18°C 3.3mm 0.01kPa 329m 2m/s 1.4m/s
21:00 ☾
5% 18°C 0mm 99% 0cm -28° 18°C 3.4mm 0.02kPa 414m 2.5m/s 1.6m/s
22:00 ☾
18% 17°C 0mm 98% 0cm -36° 18°C 0.06mm 0.05kPa 11502m 2.2m/s 1.7m/s
23:00 ☾
32% 17°C 0mm 96% 0cm -41° 18°C 0.19mm 0.07kPa 10089m 2.2m/s 1.9m/s
Mon, Aug 24 Sunrise 05:05 Sunset 18:22
24:00 ☾
45% 16°C 0mm 96% 0cm -42° 17°C 0.31mm 0.08kPa 8288m 2.2m/s 2m/s
01:00 ☾
49% 17°C 0mm 96% 0cm -39° 17°C 0.38mm 0.07kPa 5131m 2.3m/s 2m/s
02:00 ☾
53% 17°C 0mm 96% 0cm -32° 17°C 0.38mm 0.09kPa 10141m 1.8m/s 1.6m/s
03:00 ☾
57% 16°C 0mm 96% 0cm -24° 17°C 0.38mm 0.08kPa 10478m 1.6m/s 1.8m/s
04:00 ☾
62% 16°C 0mm 95% 0cm -13° 16°C 0mm 0.09kPa 24134m 1.6m/s 2m/s
05:00 ☾
66% 15°C 0mm 92% 0cm -1.8° 16°C 0mm 0.14kPa 24134m 1.5m/s 1.8m/s
06:00 ☾
71% 16°C 0mm 90% 0cm 9.9° 17°C 0mm 0.21kPa 24134m 1.2m/s 1.4m/s
07:00 ☾
72% 17°C 0mm 83% 0cm 22° 20°C 0mm 0.39kPa 24134m 0.8m/s 0.37m/s
08:00 ☾
73% 18°C 0mm 76% 0cm 34° 22°C 0mm 0.61kPa 24134m 0.91m/s 0.46m/s
09:00
74% 17°C 0mm 67% 0cm 45° 24°C 0mm 0.97kPa 24134m 1.6m/s 1m/s
10:00
64% 18°C 0mm 63% 0cm 55° 25°C 0mm 1.2kPa 24134m 2.3m/s 2m/s
11:00
53% 19°C 0mm 69% 0cm 63° 25°C 0.44mm 0.96kPa 13062m 2.4m/s 2.3m/s
12:00
43% 19°C 0mm 73% 0cm 64° 24°C 0.94mm 0.82kPa 21123m 2.1m/s 2.5m/s
13:00
37% 19°C 0mm 78% 0cm 59° 23°C 1.5mm 0.63kPa 17857m 2.1m/s 2.3m/s
14:00
32% 20°C 0mm 83% 0cm 50° 23°C 2.3mm 0.48kPa 5508m 1.6m/s 2.1m/s
15:00
26% 20°C 0mm 83% 0cm 39° 23°C 3.2mm 0.47kPa 12914m 1.7m/s 2m/s
16:00
38% 20°C 0mm 82% 0cm 27° 23°C 0.56mm 0.48kPa 23605m 1.6m/s 1.5m/s
17:00
51% 20°C 0mm 90% 0cm 15° 22°C 1.3mm 0.27kPa 10715m 1.9m/s 1.3m/s
18:00
63% 19°C 0mm 91% 0cm 3.6° 20°C 2.2mm 0.2kPa 22330m 1.3m/s 1.4m/s
19:00 ☾
65% 18°C 0mm 93% 0cm -8.1° 19°C 2.3mm 0.16kPa 24134m 1.5m/s 1.7m/s
20:00 ☾
67% 17°C 0mm 93% 0cm -19° 18°C 2.3mm 0.14kPa 24134m 1.7m/s 2m/s
21:00 ☾
69% 17°C 0mm 93% 0cm -29° 18°C 2.3mm 0.14kPa 24134m 1.8m/s 2.2m/s
22:00 ☾
74% 17°C 0mm 93% 0cm -36° 18°C 0mm 0.15kPa 24134m 1.7m/s 2.2m/s
23:00 ☾
80% 17°C 0mm 92% 0cm -41° 18°C 0mm 0.16kPa 24135m 1.7m/s 2.1m/s
Tue, Aug 25 Sunrise 05:05 Sunset 18:21
24:00 ☾
85% 16°C 0mm 91% 0cm -42° 18°C 0mm 0.18kPa 24134m 1.7m/s 2.1m/s
01:00 ☾
84% 16°C 0mm 90% 0cm -39° 18°C 0mm 0.21kPa 24135m 1.9m/s 2.4m/s
02:00 ☾
82% 15°C 0mm 88% 0cm -33° 17°C 0mm 0.24kPa 24134m 1.8m/s 2.3m/s
03:00 ☾
81% 15°C 0mm 86% 0cm -24° 17°C 0mm 0.27kPa 24135m 1.8m/s 2.4m/s
04:00 ☾
83% 15°C 0mm 85% 0cm -13° 17°C 0mm 0.29kPa 24134m 1.8m/s 2.3m/s
05:00 ☾
84% 14°C 0mm 84% 0cm -1.9° 17°C 0mm 0.3kPa 24134m 1.8m/s 2.3m/s
06:00 ☾
86% 15°C 0mm 84% 0cm 9.8° 18°C 0mm 0.33kPa 24134m 1.8m/s 2.2m/s
07:00 ☾
87% 17°C 0mm 77% 0cm 22° 21°C 0mm 0.59kPa 24135m 1m/s 0.84m/s
08:00 ☾
88% 17°C 0mm 67% 0cm 34° 23°C 0mm 0.95kPa 24134m 0.51m/s 0.45m/s
09:00
89% 17°C 0mm 59% 0cm 45° 25°C 0mm 1.3kPa 24134m 1m/s 1.3m/s
10:00
84% 18°C 0.03mm 70% 0cm 55° 23°C 0.38mm 0.88kPa 24134m 0.93m/s 1m/s
11:00
78% 18°C 0.06mm 80% 0cm 62° 22°C 0.75mm 0.52kPa 24134m 0.82m/s 0.73m/s
12:00
73% 19°C 0.09mm 91% 0cm 64° 20°C 1.1mm 0.22kPa 24135m 0.72m/s 0.46m/s
13:00
64% 18°C 0.12mm 92% 0cm 59° 19°C 1.5mm 0.17kPa 22343m 1.1m/s 0.97m/s
14:00
55% 18°C 0.15mm 94% 0cm 50° 19°C 1.8mm 0.13kPa 20552m 1.5m/s 1.5m/s
15:00
46% 17°C 0.18mm 95% 0cm 39° 18°C 2.2mm 0.1kPa 18761m 1.8m/s 2m/s
16:00
45% 17°C 0.14mm 96% 0cm 27° 18°C 1.9mm 0.09kPa 18976m 1.8m/s 2m/s
17:00
43% 17°C 0.11mm 96% 0cm 15° 17°C 1.5mm 0.08kPa 19191m 1.8m/s 1.9m/s
18:00
42% 17°C 0.07mm 96% 0cm 3.4° 17°C 1.2mm 0.08kPa 19406m 1.7m/s 1.9m/s
19:00 ☾
43% 17°C 0.09mm 96% 0cm -8.4° 17°C 1.3mm 0.08kPa 20982m 1.8m/s 2m/s
20:00 ☾
43% 16°C 0.11mm 96% 0cm -19° 17°C 1.4mm 0.07kPa 22558m 1.9m/s 2.1m/s
21:00 ☾
44% 16°C 0.13mm 96% 0cm -29° 17°C 1.6mm 0.07kPa 24135m 2m/s 2.2m/s
22:00 ☾
54% 17°C 0.09mm 96% 0cm -37° 17°C 1.1mm 0.07kPa 24135m 2.3m/s 2.2m/s
23:00 ☾
63% 17°C 0.04mm 97% 0cm -42° 17°C 0.56mm 0.06kPa 24135m 2.6m/s 2.2m/s
Wed, Aug 26 Sunrise 05:06 Sunset 18:20
24:00 ☾
73% 17°C 0mm 97% 0cm -42° 18°C 0.06mm 0.06kPa 24135m 2.9m/s 2.2m/s
01:00 ☾
69% 18°C 0mm 89% 0cm -39° 19°C 0.06mm 0.26kPa 24135m 2.8m/s 2m/s
02:00 ☾
64% 18°C 0mm 80% 0cm -33° 21°C 0.06mm 0.5kPa 24135m 2.7m/s 1.9m/s
03:00 ☾
60% 18°C 0mm 72% 0cm -24° 23°C 0.06mm 0.8kPa 24135m 2.5m/s 1.8m/s
04:00 ☾
51% 18°C 0mm 69% 0cm -14° 24°C 0.15mm 0.94kPa 22259m 2.6m/s 1.7m/s
How to read: these inputs help produce the derived score; they are not requirements by themselves.

How this forecast is made

Opportunities are threshold-based signals: PhotoWeather checks whether forecast conditions match the rules for a photography scenario. They are planning guidance, not guarantees. Forecasts can change as new model runs arrive, and confidence generally decreases farther into the forecast horizon, so recheck conditions before travelling.

The weather forecast foundation comes through Open-Meteo , which aggregates models from weather agencies. PhotoWeather applies condition-specific thresholds and derived calculations; not every condition uses every model or data input.

How opportunities work → Weather data sources →
Forecast generated

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