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Rule Fog Hunter

Takachiho Gorge - Fog Hunter - Kyushu

Takachihono Mine, Japan

Thick, moody fog for atmospheric forest and landscape shots

Currently

Real-time conditions
Dewpoint Spread1.2°C
Visibility24135 (Clear)
Relative Humidity92%
Wind Speed2.1m/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
Takachiho Gorge
Fri, Apr 10 · 23:00–01:00 · 2h window
Medium confidence
46%
🌫️Fog Probability61.4-99.7%
Dewpoint Spread: 0.3°C
Visibility: 7750 (Moderate)
Relative Humidity: 98%
Wind Speed: 2.6m/s (calm conditions)
fog weather icon
Moderate Fog at Sunset
Takachiho Gorge
Sat, Apr 11 · 18:00–19:00
🌫️Fog Probability:74.6%
Medium
fog weather icon
Moderate Fog
Takachiho Gorge
Tue, Apr 14 · 17:00–18:00
🌫️Fog Probability:74.6%
Low
fog weather icon
Dense Fog at Sunset
Takachiho Gorge
Tue, Apr 14 · 18:00–20:00
🌫️Fog Probability:89.8-97.3%
High
fog weather icon
Moderate Fog
Takachiho Gorge
Tue, Apr 14 · 20:00–22:00
🌫️Fog Probability:62.7-79.7%
Low

What this forecast looks for

Plain-language explanation from the rule

This forecast predicts when Kyushu's volcanic steam, subtropical humidity, and mountainous terrain create atmospheric photography conditions. We track temperature inversions, humidity patterns, and geothermal activity to identify when mist transforms calderas, forests, and onsen villages.

Kyushu's subtropical climate and active volcanism create fog conditions unlike anywhere else in Japan. Mount Aso's massive caldera traps morning mist around its active crater, while Yakushima's ancient cedars remain wrapped in perpetual cloud. Yufuin's onsen village sees lake mist rising from thermal springs beneath Mount Yufu's twin peaks.

What makes Kyushu fog photography special:

  • Volcanic steam mixing with natural fog - Mount Aso's active crater sends white plumes into morning mist creating otherworldly layers
  • Subtropical forest clouds - Yakushima's 3,000-year-old cedars emerge from moss-draped mist receiving 250+ inches annual rainfall
  • Onsen village atmospherics - Thermal springs in Yufuin and Beppu create steam rising from streets and ponds blending with natural fog
  • Crater lake mysteries - Kirishima's volcanic lakes develop morning fog banks isolated between peaks

Lake Kinrinko in Yufuin produces spectacular morning mist November through March when cold air meets thermal waters—arrive before dawn for steam rising across mirror-calm surface with Mount Yufu reflected. Mount Aso's caldera rim offers views into fog-filled volcanic bowls with Nakadake crater's steam plume above. Yakushima's forest trails become mystical when fog drifts through moss-covered ancient trees. Best conditions occur on clear cold winter mornings, though Yakushima's fog is reliably year-round.

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72-hour requirements breakdown

What passed or failed, hour by hour
0matching hours in the next 79 hours
AND logic: all conditions required
Meets requirement
Misses requirement
Time
Asia/Tokyo
Fog Probability
≥ 60.0%
Sun, Apr 5
14:000%
15:000%
16:000%
17:000%
18:000%
19:000%
20:000%
21:000%
22:000%
23:000%
Mon, Apr 6
24:000%
01:000%
02:000%
03:000%
04:000%
05:000%
06:000%
07:000%
08:000%
09:000%
10:000%
11:000%
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14:000%
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16:000%
17:000%
18:000%
19:000%
20:000%
21:000%
22:000%
23:000%
Tue, Apr 7
24:000%
01:000%
02:000%
03:000%
04:000%
05:000%
06:000%
07:000%
08:000%
09:000%
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11:000%
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23:000%
Wed, Apr 8
24:000%
01:000%
02:000%
03:000%
04:000%
05:000%
06:000%
07:000%
08:000%
09:000%
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20:000%
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, Apr 5 Sunrise 05:59 Sunset 18:38
22:00
98% 6.5°C 0mm 92% 0cm -40° 7.7°C 0mm 0.09kPa 24135m 3m/s 2.1m/s
23:00
97% 5.8°C 0mm 90% 0cm -47° 7.3°C 0mm 0.1kPa 24135m 3.1m/s 2.2m/s
Mon, Apr 6 Sunrise 05:59 Sunset 18:38
24:00
97% 5.1°C 0mm 86% 0cm -52° 7.2°C 0mm 0.14kPa 24134m 2.5m/s 2.1m/s
01:00
86% 4°C 0mm 80% 0cm -51° 7.2°C 0mm 0.2kPa 24135m 2.7m/s 2.3m/s
02:00
75% 3.1°C 0mm 74% 0cm -45° 7.5°C 0mm 0.27kPa 24134m 2.8m/s 2.3m/s
03:00
64% 2.6°C 0mm 70% 0cm -36° 7.6°C 0mm 0.31kPa 24135m 2.6m/s 2.1m/s
04:00
43% 1.8°C 0mm 66% 0cm -25° 7.8°C 0mm 0.36kPa 24135m 1.7m/s 2m/s
05:00
22% 1.8°C 0mm 64% 0cm -13° 8.3°C 0mm 0.39kPa 24134m 1.5m/s 1.7m/s
06:00
1% 2.2°C 0mm 66% 0cm -0.13° 8.2°C 0mm 0.37kPa 24134m 1.4m/s 1.6m/s
07:00
1% 4.8°C 0mm 69% 0cm 12° 10°C 0mm 0.39kPa 24135m 1.4m/s 1.6m/s
08:00
0% 7.3°C 0mm 65% 0cm 25° 14°C 0mm 0.56kPa 24135m 0.7m/s 0.37m/s
09:00
0% 8.9°C 0mm 57% 0cm 37° 18°C 0mm 0.86kPa 24134m 0.92m/s 0.7m/s
10:00
4% 9.2°C 0mm 52% 0cm 49° 19°C 0mm 1.1kPa 24135m 2.3m/s 1.5m/s
11:00
7% 9.2°C 0mm 47% 0cm 59° 21°C 0mm 1.3kPa 24134m 3.4m/s 1.7m/s
12:00
11% 8.6°C 0mm 43% 0cm 64° 22°C 0mm 1.5kPa 24134m 4.1m/s 1.9m/s
13:00
8% 8°C 0mm 40% 0cm 63° 22°C 0mm 1.6kPa 24134m 3.7m/s 2.5m/s
14:00
4% 8°C 0mm 41% 0cm 55° 22°C 0mm 1.5kPa 24134m 3.3m/s 2.2m/s
15:00
1% 8.1°C 0mm 43% 0cm 45° 21°C 0mm 1.4kPa 24135m 2.4m/s 1.8m/s
16:00
1% 8.6°C 0mm 45% 0cm 33° 21°C 0mm 1.4kPa 24135m 2.6m/s 2m/s
17:00
0% 11°C 0mm 58% 0cm 20° 20°C 0mm 0.97kPa 24134m 2.8m/s 1.6m/s
18:00
0% 12°C 0mm 73% 0cm 7.5° 17°C 0mm 0.51kPa 24134m 0.91m/s 1.1m/s
19:00
0% 10°C 0mm 74% 0cm -5.2° 15°C 0mm 0.43kPa 24135m 0.81m/s 0.82m/s
20:00
0% 9.4°C 0mm 73% 0cm -17° 14°C 0mm 0.43kPa 24134m 0.81m/s 0.88m/s
21:00
0% 8.9°C 0mm 73% 0cm -29° 14°C 0mm 0.42kPa 24135m 0.7m/s 0.72m/s
22:00
0% 8.8°C 0mm 72% 0cm -39° 14°C 0mm 0.45kPa 24135m 0.91m/s 1m/s
23:00
0% 9.7°C 0.06mm 78% 0cm -47° 13°C 0.06mm 0.33kPa 24135m 2.9m/s 2.2m/s
Tue, Apr 7 Sunrise 05:58 Sunset 18:38
24:00
0% 11°C 0.85mm 90% 0cm -51° 13°C 0.44mm 0.15kPa 13464m 3.5m/s 1.8m/s
01:00
0% 12°C 2.5mm 96% 0cm -50° 12°C 1.9mm 0.06kPa 6498m 3.7m/s 1.9m/s
02:00
0% 11°C 2.6mm 96% 0cm -45° 11°C 4.1mm 0.05kPa 7150m 4.7m/s 2.3m/s
03:00
0% 11°C 3.7mm 98% 0cm -36° 11°C 8mm 0.03kPa 4800m 4m/s 1.9m/s
04:00
0% 11°C 3mm 98% 0cm -25° 11°C 3.6mm 0.02kPa 5827m 4.6m/s 2m/s
05:00
0% 11°C 0.86mm 98% 0cm -13° 11°C 5.2mm 0.02kPa 13491m 3.9m/s 1.7m/s
06:00
0% 11°C 2mm 99% 0cm 0.16° 11°C 6.7mm 0.02kPa 7099m 1.2m/s 0.56m/s
07:00
0% 11°C 1.2mm 99% 0cm 12° 11°C 7.9mm 0.02kPa 9709m 3.1m/s 1.5m/s
08:00
0% 11°C 0.34mm 99% 0cm 25° 11°C 8.4mm 0.02kPa 20534m 1.2m/s 0.82m/s
09:00
0% 12°C 0.05mm 98% 0cm 37° 12°C 8.7mm 0.02kPa 24134m 1.7m/s 0.81m/s
10:00
1% 12°C 0mm 94% 0cm 49° 13°C 0mm 0.09kPa 24134m 2.4m/s 1.2m/s
11:00
1% 12°C 0mm 81% 0cm 59° 15°C 0mm 0.33kPa 24135m 3.3m/s 1.3m/s
12:00
2% 11°C 0mm 67% 0cm 65° 17°C 0.06mm 0.65kPa 24134m 5.8m/s 2.2m/s
13:00
3% 6°C 0mm 43% 0cm 63° 19°C 0.06mm 1.2kPa 24134m 8.2m/s 3.1m/s
14:00
3% 3.2°C 0mm 36% 0cm 56° 19°C 0.06mm 1.4kPa 24135m 7.5m/s 4m/s
15:00
4% 3.4°C 0mm 38% 0cm 45° 18°C 0.06mm 1.3kPa 24134m 7.4m/s 3.9m/s
16:00
31% 3.9°C 0mm 43% 0cm 33° 16°C 0mm 1.1kPa 24135m 7.9m/s 4m/s
17:00
58% 4°C 0mm 49% 0cm 20° 15°C 0mm 0.84kPa 24134m 7.5m/s 3.7m/s
18:00
85% 4.2°C 0mm 59% 0cm 7.7° 12°C 0mm 0.58kPa 24135m 6.9m/s 2.5m/s
19:00
87% 3.6°C 0mm 71% 0cm -5° 8.5°C 0mm 0.32kPa 24134m 2.1m/s 1.9m/s
20:00
89% 3.9°C 0mm 77% 0cm -17° 7.7°C 0mm 0.24kPa 24134m 2m/s 2m/s
21:00
91% 3.4°C 0mm 78% 0cm -29° 6.9°C 0mm 0.21kPa 24135m 2.8m/s 2.2m/s
22:00
90% 2.6°C 0mm 78% 0cm -39° 6.1°C 0mm 0.21kPa 24135m 2.9m/s 2.3m/s
23:00
90% 1.8°C 0mm 78% 0cm -47° 5.3°C 0mm 0.19kPa 24135m 2.5m/s 2.2m/s
Wed, Apr 8 Sunrise 05:56 Sunset 18:39
24:00
89% 1.2°C 0mm 78% 0cm -51° 4.7°C 0mm 0.19kPa 24134m 2.2m/s 1.9m/s
01:00
88% 0.6°C 0mm 77% 0cm -50° 4.2°C 0mm 0.19kPa 24134m 1.6m/s 1.8m/s
02:00
86% -0.2°C 0mm 74% 0cm -44° 3.9°C 0mm 0.21kPa 24135m 1.5m/s 1.7m/s
03:00
85% -1.3°C 0mm 70% 0cm -35° 3.6°C 0mm 0.23kPa 24135m 1.5m/s 1.7m/s
04:00
85% 0.1°C 0mm 60% 0cm -24° 7.2°C 0mm 0.4kPa 24135m 1.5m/s 1.9m/s
05:00
85% 1°C 0mm 50% 0cm -13° 11°C 0mm 0.64kPa 24135m 1.5m/s 2m/s
06:00
85% 1.2°C 0mm 40% 0cm 0.38° 14°C 0mm 0.98kPa 24135m 1.4m/s 2.2m/s
07:00
85% 1.5°C 0mm 41% 0cm 13° 15°C 0mm 0.98kPa 24135m 1.5m/s 2.2m/s
08:00
84% 1.8°C 0mm 41% 0cm 25° 15°C 0mm 0.99kPa 24135m 1.6m/s 2.3m/s
09:00
84% 2.1°C 0mm 42% 0cm 38° 15°C 0mm 0.99kPa 24135m 1.7m/s 2.3m/s
10:00
77% 3.6°C 0mm 51% 0cm 49° 13°C 0mm 0.75kPa 24135m 1.7m/s 1.9m/s
11:00
69% 4.7°C 0mm 61% 0cm 59° 12°C 0mm 0.55kPa 24135m 1.7m/s 1.6m/s
12:00
62% 5.4°C 0mm 71% 0cm 65° 10°C 0mm 0.37kPa 24135m 1.7m/s 1.2m/s
13:00
60% 4.5°C 0mm 73% 0cm 63° 9.1°C 0mm 0.31kPa 24135m 1.5m/s 1.1m/s
14:00
59% 3.5°C 0mm 75% 0cm 56° 7.7°C 0mm 0.26kPa 24135m 1.2m/s 1m/s
15:00
57% 2.6°C 0mm 77% 0cm 45° 6.4°C 0mm 0.22kPa 24135m 0.94m/s 0.94m/s
16:00
58% 2.3°C 0mm 76% 0cm 33° 6.2°C 0mm 0.23kPa 24135m 0.98m/s 0.95m/s
17:00
59% 1.9°C 0mm 75% 0cm 20° 6°C 0mm 0.23kPa 24135m 1m/s 0.95m/s
18:00
60% 1.6°C 0mm 74% 0cm 7.8° 5.9°C 0mm 0.24kPa 24135m 1m/s 0.96m/s
19:00
61% 2.5°C 0mm 78% 0cm -4.9° 6°C 0mm 0.21kPa 24135m 1.1m/s 0.98m/s
20:00
62% 3.4°C 0mm 82% 0cm -17° 6.2°C 0mm 0.17kPa 24135m 1.1m/s 1m/s
21:00
63% 4.3°C 0mm 86% 0cm -29° 6.4°C 0mm 0.13kPa 24135m 1.1m/s 1m/s
How to read: these inputs help produce the derived score; they are not requirements by themselves.

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