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Rule Fog Hunter

Kirishima - Fog Hunter - Kyushu

Kirishima, Kagoshima, Japan

Thick, moody fog for atmospheric forest and landscape shots

Currently

Real-time conditions
Fog Probability
0%
Dewpoint Spread2.2°C
Visibility24135 (Clear)
Relative Humidity86%
Wind Speed1.5m/s (calm conditions)

Upcoming Opportunities

When all conditions match, PhotoWeather marks an opportunity window.

Times shown in Asia/Tokyo
fog weather icon
Next opportunity
Moderate Fog
Kirishima
Mon, Apr 13 · 20:00–22:00 · 2h window
Low confidence
30%
🌫️Fog Probability62.7-74.6%
Dewpoint Spread: 0.5°C
Visibility: 24135 (Clear)
Relative Humidity: 97%
Wind Speed: 1.6m/s (calm conditions)
fog weather icon
Moderate Fog at Sunset
Kirishima
Tue, Apr 14 · 18:00–20:00
🌫️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 95 hours
AND logic: all conditions required
Meets requirement
Misses requirement
Time
Asia/Tokyo
Fog Probability
≥ 60.0%
Sat, Apr 4
22:000%
23:000%
Sun, Apr 5
24:000%
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Mon, Apr 6
24:000%
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Tue, Apr 7
24:000%
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Wed, Apr 8
24:000%
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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 06:00 Sunset 18:38
22:00 ☾
89% 8.5°C 0mm 86% 0cm -40° 11°C 0mm 0.17kPa 24135m 1.7m/s 1.5m/s
23:00 ☾
80% 8.2°C 0mm 87% 0cm -48° 10°C 0mm 0.17kPa 24135m 1.5m/s 1.7m/s
Mon, Apr 6 Sunrise 06:00 Sunset 18:38
24:00 ☾
71% 7.9°C 0mm 87% 0cm -52° 10°C 0mm 0.16kPa 24134m 1.5m/s 1.6m/s
01:00 ☾
61% 7.5°C 0mm 85% 0cm -51° 10°C 0mm 0.19kPa 24135m 1.5m/s 1.6m/s
02:00 ☾
50% 6.8°C 0mm 80% 0cm -45° 10°C 0mm 0.24kPa 24134m 1.3m/s 1.4m/s
03:00 ☾
40% 6.2°C 0mm 77% 0cm -36° 10°C 0mm 0.28kPa 24135m 1.2m/s 1.4m/s
04:00 ☾
27% 5.7°C 0mm 72% 0cm -25° 10°C 0mm 0.35kPa 24135m 1.4m/s 1.5m/s
05:00 ☾
14% 5°C 0mm 68% 0cm -13° 11°C 0mm 0.42kPa 24134m 1.2m/s 1.3m/s
06:00 ☾
1% 4.7°C 0mm 66% 0cm -0.38° 11°C 0mm 0.44kPa 24134m 1.2m/s 1.4m/s
07:00 ☾
1% 5.9°C 0mm 66% 0cm 12° 12°C 0mm 0.47kPa 24135m 1.7m/s 1.8m/s
08:00 ☾
0% 7.5°C 0mm 63% 0cm 25° 14°C 0mm 0.61kPa 24135m 1.1m/s 0.89m/s
09:00 ☾
0% 8.4°C 0mm 57% 0cm 37° 17°C 0mm 0.82kPa 24134m 0.82m/s 0.72m/s
10:00 ☾
4% 9.2°C 0mm 54% 0cm 49° 19°C 0mm 0.99kPa 24135m 1.8m/s 1.3m/s
11:00 ☾
9% 9.4°C 0mm 52% 0cm 59° 20°C 0mm 1.1kPa 24134m 2.8m/s 1.9m/s
12:00 ☾
13% 9.4°C 0mm 51% 0cm 64° 20°C 0mm 1.1kPa 24134m 3m/s 1.9m/s
13:00 ☾
9% 9.7°C 0mm 52% 0cm 63° 20°C 0mm 1.1kPa 24134m 3.7m/s 2.5m/s
14:00 ☾
6% 9.6°C 0mm 52% 0cm 56° 20°C 0mm 1.1kPa 24134m 3.1m/s 1.7m/s
15:00 ☾
2% 9.5°C 0mm 49% 0cm 45° 20°C 0mm 1.2kPa 24135m 2.4m/s 1.4m/s
16:00 ☾
1% 9.6°C 0mm 50% 0cm 33° 20°C 0mm 1.2kPa 24135m 3m/s 1.9m/s
17:00 ☾
1% 11°C 0mm 58% 0cm 20° 19°C 0mm 0.94kPa 24134m 1.7m/s 0.53m/s
18:00 ☾
0% 11°C 0mm 68% 0cm 7.6° 17°C 0mm 0.64kPa 24134m 1.1m/s 1m/s
19:00 ☾
0% 10°C 0mm 67% 0cm -5.1° 16°C 0mm 0.61kPa 24135m 1.2m/s 1.3m/s
20:00 ☾
0% 10°C 0mm 70% 0cm -17° 16°C 0mm 0.54kPa 24134m 1.5m/s 1.6m/s
21:00 ☾
0% 11°C 0mm 71% 0cm -29° 16°C 0mm 0.52kPa 24135m 1.5m/s 1.6m/s
22:00 ☾
0% 11°C 0mm 71% 0cm -39° 16°C 0mm 0.52kPa 24135m 1.7m/s 1.8m/s
23:00 ☾
0% 10°C 0.01mm 73% 0cm -47° 15°C 0mm 0.47kPa 24135m 4.2m/s 3.1m/s
Tue, Apr 7 Sunrise 05:58 Sunset 18:39
24:00 ☾
0% 11°C 0.71mm 80% 0cm -51° 14°C 0.38mm 0.32kPa 17073m 4m/s 2.8m/s
01:00 ☾
0% 12°C 1.3mm 90% 0cm -50° 14°C 1.6mm 0.15kPa 12090m 4.5m/s 2.8m/s
02:00 ☾
0% 12°C 1.6mm 91% 0cm -45° 14°C 2.5mm 0.14kPa 11788m 3.4m/s 2.1m/s
03:00 ☾
0% 12°C 3.2mm 95% 0cm -36° 13°C 4.9mm 0.07kPa 5549m 4m/s 2.5m/s
04:00 ☾
0% 12°C 3.5mm 96% 0cm -25° 13°C 3.8mm 0.05kPa 5527m 4m/s 1.9m/s
05:00 ☾
0% 12°C 1mm 96% 0cm -13° 13°C 6mm 0.06kPa 12507m 5.7m/s 2.6m/s
06:00 ☾
0% 12°C 1mm 96% 0cm 0.03° 13°C 7.6mm 0.06kPa 12886m 0.51m/s 0.2m/s
07:00 ☾
0% 12°C 0.62mm 95% 0cm 12° 13°C 8mm 0.08kPa 15430m 2.7m/s 1.2m/s
08:00 ☾
0% 13°C 0.33mm 94% 0cm 25° 13°C 8.3mm 0.09kPa 21644m 2.6m/s 1.3m/s
09:00 ☾
0% 13°C 0mm 93% 0cm 37° 14°C 8.4mm 0.1kPa 24134m 1.7m/s 0.56m/s
10:00 ☾
0% 13°C 0mm 91% 0cm 49° 14°C 0mm 0.14kPa 24134m 2.2m/s 0.96m/s
11:00 ☾
0% 13°C 0mm 81% 0cm 59° 16°C 0mm 0.36kPa 24135m 3.9m/s 1.8m/s
12:00 ☾
0% 12°C 0mm 71% 0cm 65° 18°C 0mm 0.58kPa 24134m 5m/s 2.3m/s
13:00 ☾
1% 9°C 0mm 50% 0cm 63° 20°C 0mm 1.1kPa 24134m 7.8m/s 2.7m/s
14:00 ☾
1% 5.8°C 0mm 39% 0cm 56° 20°C 0mm 1.4kPa 24135m 8.8m/s 4.7m/s
15:00 ☾
2% 5°C 0mm 39% 0cm 45° 19°C 0mm 1.3kPa 24134m 8.9m/s 5.1m/s
16:00 ☾
27% 5.9°C 0mm 45% 0cm 33° 18°C 0mm 1.1kPa 24135m 8.7m/s 4.5m/s
17:00 ☾
53% 6.2°C 0mm 50% 0cm 20° 17°C 0mm 0.96kPa 24134m 8m/s 3.7m/s
18:00 ☾
78% 7.2°C 0mm 61% 0cm 7.8° 15°C 0mm 0.65kPa 24135m 5.3m/s 2.3m/s
19:00 ☾
82% 6.5°C 0mm 68% 0cm -4.9° 12°C 0mm 0.45kPa 24134m 3.8m/s 2.1m/s
20:00 ☾
85% 5.9°C 0mm 71% 0cm -17° 11°C 0mm 0.38kPa 24134m 5.2m/s 2.7m/s
21:00 ☾
89% 5.3°C 0mm 73% 0cm -29° 9.9°C 0mm 0.33kPa 24135m 5m/s 2.8m/s
22:00 ☾
87% 4.5°C 0mm 74% 0cm -39° 8.8°C 0mm 0.29kPa 24135m 4.3m/s 2.4m/s
23:00 ☾
85% 3.8°C 0mm 75% 0cm -47° 8°C 0mm 0.27kPa 24135m 3.2m/s 1.9m/s
Wed, Apr 8 Sunrise 05:57 Sunset 18:40
24:00 ☾
83% 3.1°C 0mm 75% 0cm -51° 7.2°C 0mm 0.25kPa 24134m 2.6m/s 2.2m/s
01:00 ☾
81% 2.5°C 0mm 74% 0cm -50° 6.9°C 0mm 0.26kPa 24134m 2.3m/s 2.2m/s
02:00 ☾
80% 1.9°C 0mm 71% 0cm -44° 6.8°C 0mm 0.29kPa 24135m 2.4m/s 2.2m/s
03:00 ☾
78% 1.3°C 0mm 69% 0cm -35° 6.6°C 0mm 0.3kPa 24135m 2.4m/s 2.3m/s
04:00 ☾
77% 2.6°C 0mm 60% 0cm -25° 9.9°C 0mm 0.48kPa 24135m 2.3m/s 2.4m/s
05:00 ☾
75% 3.6°C 0mm 52% 0cm -13° 13°C 0mm 0.72kPa 24135m 2.2m/s 2.5m/s
06:00 ☾
74% 4.1°C 0mm 44% 0cm 0.25° 16°C 0mm 1.1kPa 24135m 2m/s 2.5m/s
07:00 ☾
72% 4.4°C 0mm 45% 0cm 13° 16°C 0mm 1kPa 24135m 2.2m/s 2.9m/s
08:00 ☾
71% 4.6°C 0mm 46% 0cm 25° 16°C 0mm 1kPa 24135m 2.4m/s 3.2m/s
09:00 ☾
69% 4.9°C 0mm 47% 0cm 38° 16°C 0mm 0.99kPa 24135m 2.6m/s 3.6m/s
10:00 ☾
67% 5.3°C 0mm 52% 0cm 49° 15°C 0mm 0.83kPa 24135m 3.3m/s 3.1m/s
11:00 ☾
66% 5.5°C 0mm 57% 0cm 59° 14°C 0mm 0.68kPa 24135m 3.9m/s 2.6m/s
12:00 ☾
64% 5.6°C 0mm 62% 0cm 65° 13°C 0mm 0.55kPa 24135m 4.5m/s 2.1m/s
13:00 ☾
63% 5.4°C 0mm 66% 0cm 64° 12°C 0mm 0.46kPa 24135m 3.3m/s 1.7m/s
14:00 ☾
62% 5.1°C 0mm 70% 0cm 56° 10°C 0mm 0.38kPa 24135m 2.1m/s 1.3m/s
15:00 ☾
61% 4.7°C 0mm 73% 0cm 45° 9.2°C 0mm 0.31kPa 24135m 0.94m/s 0.93m/s
16:00 ☾
64% 5°C 0mm 75% 0cm 33° 9.1°C 0mm 0.28kPa 24135m 1m/s 1.1m/s
17:00 ☾
66% 5.2°C 0mm 78% 0cm 21° 8.9°C 0mm 0.26kPa 24135m 1.1m/s 1.2m/s
18:00 ☾
69% 5.5°C 0mm 80% 0cm 7.9° 8.8°C 0mm 0.23kPa 24135m 1.1m/s 1.3m/s
19:00 ☾
72% 6°C 0mm 81% 0cm -4.8° 9°C 0mm 0.21kPa 24135m 1.1m/s 1.2m/s
20:00 ☾
74% 6.5°C 0mm 83% 0cm -17° 9.3°C 0mm 0.2kPa 24135m 1.1m/s 1.2m/s
21:00 ☾
77% 7°C 0mm 84% 0cm -29° 9.5°C 0mm 0.19kPa 24135m 1.1m/s 1.1m/s
How to read: these inputs help produce the derived score; they are not requirements by themselves.

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