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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 Spread0.1°C
Visibility729 (Fog)
Relative Humidity99%
Wind Speed2.0m/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 Dawn
Nikko
Wed, Sep 9 · 04:00–05:00 · 1h window
High confidence
72%
🌫️Fog Probability100%
Dewpoint Spread: 0.1°C
Visibility: 55 (Dense fog)
Relative Humidity: 100%
Wind Speed: 1.2m/s (calm conditions)
fog weather icon
Dense Fog at Sunrise
Nikko
Wed, Sep 9 · 05:00–06:00
🌫️Fog Probability:100%
High
fog weather icon
Dense Fog at Sunrise
Nikko
Thu, Sep 10 · 05:00–06:00
🌫️Fog Probability:100%
Medium
fog weather icon
Dense Fog
Nikko
Thu, Sep 10 · 06:00–08:00
🌫️Fog Probability:100%
High
fog weather icon
Dense Fog
Nikko
Thu, Sep 10 · 11:00–14:00
🌫️Fog Probability:98.1%
High
fog weather icon
Dense Fog
Nikko
Thu, Sep 10 · 16:00–17:00
🌫️Fog Probability:100%
Medium
fog weather icon
Dense Fog at Sunset
Nikko
Thu, Sep 10 · 17:00–19:00
🌫️Fog Probability:100%
High
+7 more windows in the next 14 days

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
23
recorded matching windows · 83% average confidence
Last 90 days
57
recorded matching windows · 87% average confidence
Last 365 days
86
recorded matching windows · 88% average confidence
Most frequent recorded start hour

04:00 local time, shared by 21 of 86 matches recorded in the last 365 days.

Most represented month

August, with 26 of 86 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
4matching hours in the next 95 hoursJump to next match
AND logic: all conditions required
Meets requirement
Misses requirement
Time
Asia/Tokyo
Fog Probability
≥ 75.0%
Sun, Sep 6
06:0067%
07:0059%
08:0096%
09:0096%
10:0069%
11:000%
12:000%
13:0052%
14:0046%
15:000%
16:000%
17:000%
18:000%
19:000%
20:000%
21:000%
22:000%
23:000%
Mon, Sep 7
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%
22:0058%
23:0029%
Tue, Sep 8
24:000%
01:0029%
02:000%
03:000%
04:0053%
05:0053%
06:0055%
07:0046%
08:000%
09:0052%
10:0051%
11:0052%
12:000%
13:000%
14:000%
15:000%
16:000%
17:000%
18:000%
19:000%
20:000%
21:000%
22:0071%
23:0073%
Wed, Sep 9
24:0069%
01:0066%
02:0068%
03:0069%
04:00100%
05:00100%
06:0069%
07:0060%
08:0055%
09:0055%
10:0055%
11:0054%
12:000%
13:000%
14:000%
15:000%
16:000%
17:000%
18:000%
19:000%
20:000%
21:000%
22:000%
23:000%
Thu, Sep 10
24:0069%
01:0068%
02:0068%
03:0069%
04:0067%
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
Mon, Sep 7 Sunrise 05:16 Sunset 18:03
06:00 ☾
0% 16°C 13mm 99% 0cm 7.8° 16°C 64mm 0.01kPa 729m 4m/s 2m/s
07:00 ☾
0% 16°C 20mm 99% 0cm 20° 16°C 76mm 0.02kPa 359m 2.4m/s 1.5m/s
08:00 ☾
0% 16°C 12mm 99% 0cm 31° 17°C 90mm 0.02kPa 717m 1.6m/s 0.71m/s
09:00
0% 17°C 15mm 100% 0cm 42° 17°C 106mm 0.01kPa 370m 1.1m/s 0.57m/s
10:00
0% 17°C 5.1mm 100% 0cm 52° 17°C 10mm 0.01kPa 162m 1.9m/s 0.94m/s
11:00
0% 18°C 3mm 100% 0cm 58° 18°C 16mm 0kPa 91m 2.4m/s 1.6m/s
12:00
0% 18°C 7.2mm 100% 0cm 59° 18°C 20mm 0.01kPa 88m 3m/s 1.9m/s
13:00
0% 18°C 1.7mm 99% 0cm 54° 18°C 23mm 0.02kPa 1020m 3.1m/s 2.3m/s
14:00
0% 19°C 0.73mm 98% 0cm 46° 19°C 24mm 0.03kPa 11470m 3.2m/s 1.9m/s
15:00
0% 19°C 6.2mm 99% 0cm 35° 19°C 29mm 0.02kPa 943m 2.4m/s 1.3m/s
16:00
0% 19°C 2mm 99% 0cm 24° 19°C 2.4mm 0.02kPa 3173m 3m/s 1.8m/s
17:00
0% 18°C 1.7mm 99% 0cm 12° 18°C 4.1mm 0.01kPa 2217m 2.7m/s 1.6m/s
18:00
0% 18°C 1.4mm 98% 0cm 0.08° 19°C 5.8mm 0.03kPa 3710m 2.6m/s 1.9m/s
19:00 ☾
0% 18°C 0mm 97% 0cm -12° 18°C 6.1mm 0.06kPa 8370m 2.4m/s 2m/s
20:00 ☾
0% 18°C 0mm 97% 0cm -23° 18°C 6.1mm 0.07kPa 2348m 2.2m/s 1.9m/s
21:00 ☾
0% 18°C 0mm 96% 0cm -33° 18°C 6.1mm 0.08kPa 2673m 1.9m/s 1.8m/s
22:00 ☾
0% 17°C 0mm 96% 0cm -41° 18°C 0.13mm 0.09kPa 8327m 1.8m/s 1.8m/s
23:00 ☾
0% 17°C 0.01mm 95% 0cm -46° 18°C 0.31mm 0.11kPa 21332m 1.4m/s 1.5m/s
Tue, Sep 8 Sunrise 05:17 Sunset 18:01
24:00 ☾
0% 17°C 0mm 95% 0cm -47° 18°C 0.38mm 0.11kPa 21341m 1m/s 0.95m/s
01:00 ☾
0% 17°C 0mm 96% 0cm -43° 18°C 0.38mm 0.09kPa 24134m 0.91m/s 0.87m/s
02:00 ☾
0% 17°C 0mm 95% 0cm -36° 18°C 0.38mm 0.1kPa 24135m 1m/s 0.91m/s
03:00 ☾
0% 17°C 0.07mm 95% 0cm -27° 18°C 0.44mm 0.1kPa 24134m 1.1m/s 1.2m/s
04:00 ☾
1% 17°C 0mm 96% 0cm -16° 18°C 0.13mm 0.09kPa 24134m 0.9m/s 0.8m/s
05:00 ☾
2% 17°C 0mm 95% 0cm -4.3° 18°C 0.13mm 0.09kPa 24134m 0.71m/s 0.53m/s
06:00 ☾
3% 17°C 0mm 96% 0cm 7.7° 18°C 0.19mm 0.08kPa 24135m 0.5m/s 0.25m/s
07:00 ☾
3% 18°C 0mm 95% 0cm 20° 19°C 0.19mm 0.1kPa 24135m 0.8m/s 0.58m/s
08:00 ☾
3% 19°C 0mm 95% 0cm 31° 20°C 0.19mm 0.12kPa 24135m 1m/s 1m/s
09:00
3% 19°C 0mm 98% 0cm 42° 19°C 0.25mm 0.05kPa 332m 1.2m/s 1.3m/s
10:00
2% 19°C 0mm 96% 0cm 52° 20°C 0.31mm 0.08kPa 325m 1.5m/s 1.6m/s
11:00
1% 19°C 0.31mm 98% 0cm 58° 20°C 0.81mm 0.04kPa 103m 1.9m/s 1.7m/s
12:00
0% 19°C 2.1mm 100% 0cm 59° 19°C 2.3mm 0.01kPa 83m 2.2m/s 1.7m/s
13:00
0% 19°C 2.7mm 100% 0cm 54° 19°C 6.1mm 0.01kPa 90m 1.8m/s 1.3m/s
14:00
0% 19°C 1.3mm 100% 0cm 45° 19°C 8.4mm 0.01kPa 84m 1.8m/s 1.5m/s
15:00
0% 19°C 4.3mm 100% 0cm 35° 19°C 11mm 0.01kPa 92m 2.9m/s 1.9m/s
16:00
0% 19°C 0.72mm 100% 0cm 23° 19°C 2.8mm 0.01kPa 90m 1.6m/s 1m/s
17:00
0% 18°C 1.4mm 100% 0cm 11° 18°C 3.8mm 0.01kPa 95m 1.5m/s 0.74m/s
18:00
0% 18°C 0.13mm 100% 0cm -0.34° 18°C 4.2mm 0.01kPa 78m 2.3m/s 1.5m/s
19:00 ☾
0% 18°C 0.02mm 99% 0cm -12° 18°C 4.3mm 0.02kPa 222m 1.4m/s 0.97m/s
20:00 ☾
0% 17°C 0mm 99% 0cm -24° 18°C 4.3mm 0.02kPa 896m 0.7m/s 0.46m/s
21:00 ☾
0% 18°C 0.01mm 98% 0cm -34° 18°C 4.4mm 0.05kPa 19638m 1m/s 0.93m/s
22:00 ☾
0% 18°C 0.01mm 98% 0cm -42° 18°C 0.13mm 0.05kPa 24134m 1m/s 1.1m/s
23:00 ☾
0% 18°C 0.01mm 98% 0cm -47° 18°C 0.13mm 0.03kPa 17644m 0.94m/s 0.9m/s
Wed, Sep 9 Sunrise 05:18 Sunset 18:00
24:00 ☾
0% 18°C 0.01mm 99% 0cm -47° 18°C 0.19mm 0.02kPa 2970m 1.2m/s 1.1m/s
01:00 ☾
0% 18°C 0mm 99% 0cm -44° 18°C 0.25mm 0.01kPa 579m 1m/s 0.94m/s
02:00 ☾
0% 18°C 0mm 100% 0cm -36° 18°C 0.38mm 0.01kPa 175m 1.5m/s 1.1m/s
03:00 ☾
0% 18°C 0.01mm 99% 0cm -27° 18°C 0.44mm 0.01kPa 80m 1.7m/s 1.1m/s
04:00 ☾
0% 18°C 0mm 100% 0cm -16° 18°C 0.06mm 0.01kPa 55m 2m/s 1.2m/s
05:00 ☾
1% 18°C 0mm 100% 0cm -4.4° 18°C 0.13mm 0.01kPa 50m 2m/s 1.2m/s
06:00 ☾
1% 18°C 0mm 99% 0cm 7.5° 18°C 0.31mm 0.01kPa 61m 1.4m/s 0.87m/s
07:00 ☾
1% 19°C 0.07mm 99% 0cm 19° 19°C 0.38mm 0.02kPa 77m 1.4m/s 0.6m/s
08:00 ☾
0% 19°C 0.01mm 100% 0cm 31° 19°C 0.56mm 0.01kPa 85m 0.7m/s 0.57m/s
09:00
0% 19°C 0.01mm 99% 0cm 42° 19°C 0.63mm 0.02kPa 63m 1.5m/s 1.1m/s
10:00
0% 19°C 0.25mm 100% 0cm 51° 19°C 0.19mm 0.01kPa 66m 1.7m/s 1.2m/s
11:00
1% 18°C 0.15mm 100% 0cm 57° 18°C 0.81mm 0.01kPa 130m 2.1m/s 1.4m/s
12:00
1% 18°C 4mm 99% 0cm 58° 18°C 2.3mm 0.02kPa 261m 1.7m/s 0.79m/s
13:00
1% 17°C 0.21mm 99% 0cm 54° 17°C 4.4mm 0.03kPa 374m 1.9m/s 1.2m/s
14:00
0% 17°C 0.76mm 97% 0cm 45° 17°C 4.7mm 0.06kPa 540m 1.7m/s 0.83m/s
15:00
0% 16°C 0.56mm 98% 0cm 34° 17°C 5.3mm 0.04kPa 981m 1.7m/s 1m/s
16:00
0% 15°C 0.47mm 98% 0cm 23° 16°C 6.4mm 0.03kPa 1224m 1.3m/s 0.79m/s
17:00
1% 14°C 0.39mm 99% 0cm 11° 14°C 7.6mm 0.02kPa 1467m 0.85m/s 0.57m/s
18:00 ☾
1% 13°C 0.3mm 100% 0cm -0.75° 13°C 8.8mm 0.01kPa 1710m 0.41m/s 0.35m/s
19:00 ☾
1% 13°C 0.21mm 100% 0cm -13° 13°C 9.4mm 0.01kPa 1407m 0.75m/s 0.61m/s
20:00 ☾
0% 13°C 0.11mm 100% 0cm -24° 13°C 10mm 0.01kPa 1105m 1.1m/s 0.86m/s
21:00 ☾
0% 13°C 0.02mm 100% 0cm -34° 13°C 11mm 0.01kPa 802m 1.4m/s 1.1m/s
22:00 ☾
0% 13°C 0.02mm 99% 0cm -42° 13°C 7.2mm 0.01kPa 583m 1.4m/s 1.1m/s
23:00 ☾
1% 13°C 0.01mm 99% 0cm -47° 13°C 3.7mm 0.01kPa 365m 1.4m/s 1m/s
Thu, Sep 10 Sunrise 05:18 Sunset 17:58
24:00 ☾
1% 13°C 0.01mm 99% 0cm -48° 13°C 0.19mm 0.01kPa 146m 1.3m/s 1m/s
01:00 ☾
2% 14°C 0.01mm 99% 0cm -44° 14°C 0.21mm 0.01kPa 124m 1.1m/s 0.95m/s
02:00 ☾
2% 14°C 0.01mm 99% 0cm -37° 14°C 0.23mm 0.01kPa 101m 0.87m/s 0.88m/s
03:00 ☾
3% 14°C 0.01mm 99% 0cm -27° 14°C 0.25mm 0.01kPa 79m 0.64m/s 0.82m/s
04:00 ☾
3% 14°C 0.007mm 99% 0cm -16° 15°C 0.21mm 0.02kPa 123m 0.9m/s 0.89m/s
05:00 ☾
4% 15°C 0.003mm 98% 0cm -4.6° 15°C 0.17mm 0.03kPa 167m 1.2m/s 0.96m/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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