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Rule Fog Hunter

Nagasaki - Fog Hunter - Kyushu

Nagasaki, Nagasaki, Japan

Thick, moody fog for atmospheric forest and landscape shots

No opportunities right now
Here’s what usually blocks matches

No Fog Hunter opportunities in the next 14 days

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Rule requirements (key thresholds)
Fog Probability · ≥ 60.0%

Tip: Scroll down to the 72-hour table to see exactly which condition fails hour by hour.

Most common blockers (next 72 hours)
Fog Probability 100% failing

Currently

Real-time conditions
Fog Probability
0%
Dewpoint Spread4.6°C
Visibility24135 (Clear)
Relative Humidity73%
Wind Speed1.7m/s (calm conditions)

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

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 06:02 Sunset 18:42
22:00 ☾
100% 7.7°C 0mm 73% 0cm -38° 12°C 0mm 0.38kPa 24135m 2.8m/s 1.7m/s
23:00 ☾
100% 7.4°C 0mm 74% 0cm -46° 12°C 0mm 0.36kPa 24135m 1m/s 0.77m/s
Mon, Apr 6 Sunrise 06:02 Sunset 18:42
24:00 ☾
100% 7.4°C 0mm 75% 0cm -51° 12°C 0mm 0.35kPa 24134m 1.5m/s 0.81m/s
01:00 ☾
98% 7.7°C 0mm 74% 0cm -50° 12°C 0mm 0.36kPa 24135m 2.4m/s 1.5m/s
02:00 ☾
96% 7.8°C 0mm 75% 0cm -45° 12°C 0mm 0.36kPa 24134m 1.5m/s 0.84m/s
03:00 ☾
94% 8.1°C 0mm 76% 0cm -36° 12°C 0mm 0.34kPa 24135m 2m/s 1.5m/s
04:00 ☾
63% 8.4°C 0mm 78% 0cm -25° 12°C 0mm 0.31kPa 24135m 1.6m/s 1.4m/s
05:00 ☾
33% 8.4°C 0mm 79% 0cm -14° 12°C 0mm 0.29kPa 24134m 1.1m/s 1.1m/s
06:00 ☾
2% 8.5°C 0mm 80% 0cm -1.2° 12°C 0mm 0.28kPa 24134m 0.72m/s 0.59m/s
07:00 ☾
1% 9.2°C 0mm 78% 0cm 11° 13°C 0mm 0.33kPa 24135m 1.7m/s 1.4m/s
08:00 ☾
1% 9.6°C 0mm 72% 0cm 24° 15°C 0mm 0.45kPa 24135m 1.1m/s 0.85m/s
09:00 ☾
0% 9.7°C 0mm 65% 0cm 36° 16°C 0mm 0.64kPa 24134m 2m/s 1.1m/s
10:00 ☾
0% 9.9°C 0mm 60% 0cm 48° 18°C 0mm 0.82kPa 24135m 3.5m/s 1.9m/s
11:00 ☾
1% 10°C 0mm 59% 0cm 57° 18°C 0mm 0.85kPa 24134m 4.6m/s 2.5m/s
12:00 ☾
1% 10°C 0mm 59% 0cm 63° 19°C 0mm 0.88kPa 24134m 5m/s 2.8m/s
13:00 ☾
1% 11°C 0mm 58% 0cm 62° 19°C 0mm 0.93kPa 24134m 5m/s 3.1m/s
14:00 ☾
0% 11°C 0mm 58% 0cm 55° 19°C 0mm 0.94kPa 24134m 5.3m/s 3.5m/s
15:00 ☾
0% 11°C 0mm 60% 0cm 45° 19°C 0mm 0.9kPa 24135m 5.3m/s 3.4m/s
16:00 ☾
0% 13°C 0mm 72% 0cm 33° 18°C 0mm 0.59kPa 24135m 4.7m/s 2.5m/s
17:00 ☾
0% 13°C 0mm 75% 0cm 21° 18°C 0mm 0.51kPa 24134m 3.6m/s 2.2m/s
18:00 ☾
0% 13°C 0mm 78% 0cm 8.4° 17°C 0mm 0.43kPa 24134m 1.8m/s 1.7m/s
19:00 ☾
0% 13°C 0.05mm 77% 0cm -4.1° 17°C 0mm 0.43kPa 24135m 1.6m/s 1.3m/s
20:00 ☾
0% 13°C 0mm 78% 0cm -16° 17°C 0.06mm 0.42kPa 24134m 2m/s 2.1m/s
21:00 ☾
0% 13°C 0.16mm 80% 0cm -28° 16°C 0.13mm 0.36kPa 24135m 1.3m/s 1.2m/s
22:00 ☾
0% 13°C 0.13mm 85% 0cm -38° 16°C 0.19mm 0.26kPa 24135m 1.3m/s 1.1m/s
23:00 ☾
0% 13°C 0.27mm 85% 0cm -46° 16°C 0.25mm 0.27kPa 22930m 0.5m/s 0.42m/s
Tue, Apr 7 Sunrise 06:01 Sunset 18:43
24:00 ☾
0% 13°C 0.18mm 87% 0cm -50° 15°C 0.56mm 0.22kPa 24135m 1.5m/s 1.5m/s
01:00 ☾
0% 13°C 0.48mm 87% 0cm -50° 15°C 0.88mm 0.22kPa 21243m 1.3m/s 1.2m/s
02:00 ☾
0% 13°C 2mm 91% 0cm -44° 14°C 1.9mm 0.14kPa 7031m 1.9m/s 1.5m/s
03:00 ☾
0% 12°C 1.6mm 94% 0cm -36° 13°C 3.8mm 0.09kPa 8770m 2.5m/s 1.8m/s
04:00 ☾
0% 12°C 2.4mm 96% 0cm -25° 13°C 2.3mm 0.06kPa 5852m 4m/s 2.5m/s
05:00 ☾
0% 12°C 0.93mm 95% 0cm -13° 13°C 3.8mm 0.07kPa 11901m 3.8m/s 2.3m/s
06:00 ☾
0% 12°C 0.22mm 95% 0cm -0.83° 13°C 4.3mm 0.08kPa 24134m 5.6m/s 3.4m/s
07:00 ☾
0% 12°C 0.58mm 94% 0cm 12° 13°C 4.9mm 0.09kPa 16635m 7.1m/s 5.1m/s
08:00 ☾
0% 11°C 0.13mm 88% 0cm 24° 13°C 5.3mm 0.17kPa 24134m 6.6m/s 5m/s
09:00 ☾
0% 10°C 0mm 87% 0cm 36° 12°C 5.3mm 0.19kPa 24134m 5.9m/s 4.5m/s
10:00 ☾
5% 10°C 0mm 77% 0cm 48° 14°C 0mm 0.38kPa 24134m 4.6m/s 4m/s
11:00 ☾
10% 9.4°C 0mm 62% 0cm 58° 17°C 0mm 0.74kPa 24135m 4.5m/s 3m/s
12:00 ☾
15% 5.4°C 0mm 45% 0cm 64° 18°C 0mm 1.1kPa 24134m 4.8m/s 2.3m/s
13:00 ☾
20% 3.9°C 0mm 40% 0cm 63° 18°C 0mm 1.2kPa 24134m 5.9m/s 3.3m/s
14:00 ☾
24% 3.2°C 0mm 37% 0cm 56° 18°C 0mm 1.3kPa 24135m 7.3m/s 4.6m/s
15:00 ☾
29% 2.4°C 0mm 35% 0cm 45° 18°C 0mm 1.3kPa 24134m 7.5m/s 5.2m/s
16:00 ☾
52% 3.6°C 0mm 41% 0cm 33° 17°C 0mm 1.1kPa 24135m 7.4m/s 5.5m/s
17:00 ☾
75% 2.8°C 0mm 44% 0cm 21° 15°C 0mm 0.96kPa 24134m 6.5m/s 5.6m/s
18:00 ☾
98% 2.8°C 0mm 49% 0cm 8.6° 13°C 0mm 0.78kPa 24135m 7.7m/s 4.9m/s
19:00 ☾
98% 2.6°C 0mm 54% 0cm -4° 12°C 0mm 0.62kPa 24134m 7.4m/s 3.9m/s
20:00 ☾
99% 2.6°C 0mm 58% 0cm -16° 11°C 0mm 0.54kPa 24134m 5.2m/s 2.9m/s
21:00 ☾
99% 2.1°C 0mm 57% 0cm -28° 10°C 0mm 0.53kPa 24135m 3.6m/s 2.4m/s
22:00 ☾
99% 1.8°C 0mm 57% 0cm -38° 9.8°C 0mm 0.52kPa 24135m 2.9m/s 2.2m/s
23:00 ☾
100% 1.5°C 0mm 57% 0cm -46° 9.5°C 0mm 0.51kPa 24135m 1.9m/s 1.6m/s
Wed, Apr 8 Sunrise 06:00 Sunset 18:44
24:00 ☾
100% 1.2°C 0mm 57% 0cm -50° 9.2°C 0mm 0.5kPa 24134m 1.4m/s 1.4m/s
01:00 ☾
99% 1.1°C 0mm 58% 0cm -49° 8.9°C 0mm 0.48kPa 24134m 1.6m/s 1.6m/s
02:00 ☾
99% 1.2°C 0mm 60% 0cm -44° 8.6°C 0mm 0.45kPa 24135m 2.2m/s 2.1m/s
03:00 ☾
98% 1.5°C 0mm 62% 0cm -35° 8.4°C 0mm 0.42kPa 24135m 2.9m/s 2.5m/s
04:00 ☾
95% 1.6°C 0mm 50% 0cm -25° 12°C 0mm 0.67kPa 24135m 2.2m/s 1.8m/s
05:00 ☾
93% 0.9°C 0mm 39% 0cm -13° 15°C 0mm 1kPa 24135m 1.5m/s 1.1m/s
06:00 ☾
90% -1.1°C 0mm 28% 0cm -0.47° 18°C 0mm 1.5kPa 24135m 0.74m/s 0.37m/s
07:00 ☾
90% -0.7°C 0mm 29% 0cm 12° 18°C 0mm 1.4kPa 24135m 1.2m/s 1.1m/s
08:00 ☾
89% -0.4°C 0mm 30% 0cm 24° 17°C 0mm 1.4kPa 24135m 1.7m/s 1.9m/s
09:00 ☾
89% 0°C 0mm 31% 0cm 37° 17°C 0mm 1.4kPa 24135m 2.1m/s 2.6m/s
10:00 ☾
87% 1.1°C 0mm 36% 0cm 48° 16°C 0mm 1.2kPa 24135m 2.4m/s 2.4m/s
11:00 ☾
85% 1.9°C 0mm 41% 0cm 58° 15°C 0mm 1kPa 24135m 2.6m/s 2.2m/s
12:00 ☾
83% 2.5°C 0mm 46% 0cm 64° 14°C 0mm 0.85kPa 24135m 2.8m/s 2m/s
13:00 ☾
79% 1.8°C 0mm 47% 0cm 63° 13°C 0mm 0.77kPa 24135m 2.3m/s 1.7m/s
14:00 ☾
75% 1°C 0mm 48% 0cm 56° 12°C 0mm 0.7kPa 24135m 1.7m/s 1.3m/s
15:00 ☾
71% 0.3°C 0mm 50% 0cm 45° 10°C 0mm 0.63kPa 24135m 1.1m/s 0.95m/s
16:00 ☾
69% 1.7°C 0mm 55% 0cm 34° 10°C 0mm 0.56kPa 24135m 1.3m/s 1.2m/s
17:00 ☾
68% 3.1°C 0mm 61% 0cm 21° 10°C 0mm 0.49kPa 24135m 1.5m/s 1.5m/s
18:00 ☾
66% 4.3°C 0mm 66% 0cm 8.7° 10°C 0mm 0.42kPa 24135m 1.7m/s 1.8m/s
19:00 ☾
69% 5°C 0mm 70% 0cm -3.8° 10°C 0mm 0.37kPa 24135m 1.8m/s 1.8m/s
20:00 ☾
71% 5.6°C 0mm 75% 0cm -16° 9.9°C 0mm 0.31kPa 24135m 1.9m/s 1.8m/s
21:00 ☾
74% 6.2°C 0mm 79% 0cm -27° 9.7°C 0mm 0.26kPa 24135m 2m/s 1.8m/s
How to read: these inputs help produce the derived score; they are not requirements by themselves.

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