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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 Spread0.1°C
Visibility969 (Fog)
Relative Humidity100%
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
Dense Fog
Takachiho Gorge
Today · 22:00–04:00 · 6h window
High confidence
100%
🌫️Fog Probability100%
Dewpoint Spread: 0.1°C
Visibility: 1037 (Mist/Haze)
Relative Humidity: 100%
Wind Speed: 1.5m/s (calm conditions)
fog weather icon
Dense Fog at Dawn
Takachiho Gorge
Tomorrow · 04:00–05:00
🌫️Fog Probability:100%
High
fog weather icon
Moderate Fog at Dawn
Takachiho Gorge
Fri, Jul 10 · 04:00–05:00
🌫️Fog Probability:75.8%
Medium
fog weather icon
Moderate Fog at Sunrise
Takachiho Gorge
Fri, Jul 10 · 05:00–06:00
🌫️Fog Probability:75.8%
Medium
fog weather icon
Moderate Fog
Takachiho Gorge
Sat, Jul 11 · 23:00–01:00
🌫️Fog Probability:75.8%
Low
fog weather icon
Dense Fog at Sunset
Takachiho Gorge
Thu, Jul 16 · 18:00–20:00
🌫️Fog Probability:100%
High
fog weather icon
Dense Fog
Takachiho Gorge
Thu, Jul 16 · 20:00–23:00
🌫️Fog Probability:79.7-100%
Medium

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
17matching 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%
Tue, Jul 7
22:00100%
23:00100%
Wed, Jul 8
24:00100%
01:00100%
02:00100%
03:00100%
04:00100%
05:00100%
06:0069%
07:0062%
08:0042%
09:000%
10:000%
11:000%
12:000%
13:000%
14:000%
15:000%
16:000%
17:000%
18:000%
19:000%
20:0041%
21:0046%
22:00100%
23:00100%
Thu, Jul 9
24:00100%
01:00100%
02:00100%
03:00100%
04:00100%
05:0062%
06:0055%
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%
20:0073%
21:0073%
22:0073%
23:0071%
Fri, Jul 10
24:000%
01:000%
02:0053%
03:0073%
04:0076%
05:0076%
06:0073%
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%
20:0041%
21:0042%
22:0064%
23:0064%
Sat, Jul 11
24:0064%
01:0064%
02:0034%
03:0035%
04:000%
05:000%
06:000%
07:000%
08:000%
09:000%
10:000%
11:000%
12:000%
13:000%
14:000%
15:0034%
16:0034%
17:0061%
18:0067%
19:0069%
20:0042%
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
Wed, Jul 8 Sunrise 05:17 Sunset 19:25
23:00
1% 21°C 0mm 100% 0cm -32° 21°C 0mm 0.01kPa 969m 5.3m/s 1.5m/s
Thu, Jul 9 Sunrise 05:17 Sunset 19:25
24:00
2% 21°C 0mm 99% 0cm -35° 21°C 0mm 0.01kPa 2594m 5.4m/s 1.6m/s
01:00
2% 20°C 0mm 99% 0cm -35° 20°C 0.06mm 0.02kPa 1001m 5m/s 1.6m/s
02:00
1% 20°C 0mm 99% 0cm -31° 20°C 0.06mm 0.02kPa 437m 5.4m/s 1.6m/s
03:00
1% 20°C 0mm 98% 0cm -24° 20°C 0.06mm 0.04kPa 385m 5.8m/s 1.7m/s
04:00
3% 20°C 0mm 98% 0cm -15° 20°C 0mm 0.05kPa 780m 6.4m/s 1.6m/s
05:00
4% 20°C 0mm 97% 0cm -4.1° 20°C 0.06mm 0.06kPa 12165m 6.8m/s 1.8m/s
06:00
6% 20°C 0mm 97% 0cm 7.5° 21°C 0.06mm 0.08kPa 24135m 6.9m/s 2m/s
07:00
7% 20°C 0mm 93% 0cm 19° 22°C 0.06mm 0.18kPa 24134m 8m/s 2.3m/s
08:00
9% 20°C 0mm 82% 0cm 32° 23°C 0.13mm 0.5kPa 24134m 7.6m/s 3.2m/s
09:00
10% 20°C 0mm 74% 0cm 45° 24°C 0.13mm 0.8kPa 24135m 6.5m/s 3.8m/s
10:00
29% 19°C 0mm 70% 0cm 57° 25°C 0mm 0.96kPa 24135m 5.9m/s 3.8m/s
11:00
47% 19°C 0mm 66% 0cm 70° 26°C 0mm 1.1kPa 24135m 5.5m/s 3.8m/s
12:00
66% 19°C 0mm 63% 0cm 79° 27°C 0mm 1.3kPa 24134m 5.5m/s 3.9m/s
13:00
65% 19°C 0mm 60% 0cm 77° 28°C 0mm 1.5kPa 24134m 5m/s 3.8m/s
14:00
63% 19°C 0mm 60% 0cm 66° 28°C 0mm 1.5kPa 24134m 4.7m/s 3.8m/s
15:00
62% 20°C 0mm 63% 0cm 54° 27°C 0.06mm 1.3kPa 24135m 4m/s 3.5m/s
16:00
55% 20°C 0mm 73% 0cm 41° 26°C 0mm 0.9kPa 24135m 4.4m/s 3.3m/s
17:00
48% 20°C 0mm 73% 0cm 28° 25°C 0mm 0.89kPa 24134m 4.2m/s 3.1m/s
18:00
41% 21°C 0mm 80% 0cm 16° 24°C 0mm 0.62kPa 24135m 4.8m/s 2.6m/s
19:00
45% 21°C 0mm 90% 0cm 4.2° 23°C 0mm 0.26kPa 24134m 4.5m/s 1.9m/s
20:00
49% 21°C 0mm 98% 0cm -7.2° 21°C 0mm 0.04kPa 24135m 2.7m/s 1.5m/s
21:00
53% 20°C 0mm 99% 0cm -17° 20°C 0mm 0.03kPa 24135m 3.3m/s 1.3m/s
22:00
44% 20°C 0mm 98% 0cm -26° 20°C 0mm 0.04kPa 24134m 1.8m/s 1.1m/s
23:00
34% 20°C 0mm 98% 0cm -32° 20°C 0mm 0.06kPa 24135m 3.1m/s 1.3m/s
Fri, Jul 10 Sunrise 05:17 Sunset 19:24
24:00
25% 20°C 0mm 94% 0cm -36° 21°C 0mm 0.14kPa 24135m 4.4m/s 1.5m/s
01:00
20% 21°C 0mm 95% 0cm -35° 21°C 0mm 0.13kPa 23642m 6.3m/s 1.6m/s
02:00
16% 21°C 0mm 96% 0cm -31° 21°C 0.06mm 0.09kPa 24135m 6.1m/s 1.8m/s
03:00
11% 21°C 0mm 98% 0cm -24° 21°C 0.06mm 0.05kPa 18669m 5.7m/s 1.7m/s
04:00
9% 21°C 0mm 99% 0cm -15° 21°C 0mm 0.02kPa 18479m 4.6m/s 1.6m/s
05:00
7% 21°C 0mm 99% 0cm -4.2° 21°C 0.06mm 0.02kPa 24135m 4.6m/s 1.7m/s
06:00
5% 21°C 0mm 98% 0cm 7.4° 21°C 0.06mm 0.04kPa 24135m 5m/s 1.7m/s
07:00
5% 21°C 0mm 92% 0cm 19° 23°C 0.06mm 0.21kPa 24135m 7.3m/s 2.1m/s
08:00
5% 21°C 0mm 85% 0cm 32° 24°C 0.13mm 0.45kPa 24135m 7.4m/s 2.8m/s
09:00
5% 21°C 0mm 78% 0cm 45° 26°C 0.19mm 0.74kPa 24135m 7.3m/s 3.9m/s
10:00
19% 22°C 0mm 74% 0cm 57° 27°C 0.06mm 0.91kPa 24135m 7m/s 4.1m/s
11:00
33% 21°C 0mm 69% 0cm 69° 27°C 0.13mm 1.1kPa 24135m 6.9m/s 4.2m/s
12:00
47% 21°C 0mm 67% 0cm 79° 28°C 0.19mm 1.2kPa 24134m 7.4m/s 4.6m/s
13:00
42% 21°C 0mm 66% 0cm 77° 28°C 0.25mm 1.3kPa 24135m 7.2m/s 4.6m/s
14:00
36% 21°C 0mm 65% 0cm 66° 28°C 0.25mm 1.3kPa 24134m 7.3m/s 4.7m/s
15:00
31% 21°C 0mm 70% 0cm 54° 27°C 0.31mm 1.1kPa 24135m 7m/s 4.4m/s
16:00
27% 22°C 0mm 74% 0cm 41° 27°C 0.06mm 0.89kPa 24134m 6.6m/s 3.9m/s
17:00
23% 22°C 0mm 83% 0cm 28° 25°C 0.13mm 0.53kPa 24134m 7.7m/s 3.4m/s
18:00
19% 22°C 0mm 90% 0cm 16° 24°C 0.13mm 0.31kPa 24135m 8m/s 2.6m/s
19:00
16% 22°C 0mm 96% 0cm 4.1° 23°C 0.19mm 0.12kPa 24134m 6.6m/s 2m/s
20:00
12% 22°C 0mm 99% 0cm -7.3° 22°C 0.25mm 0.03kPa 24134m 6.4m/s 1.9m/s
21:00
9% 22°C 0mm 99% 0cm -18° 22°C 0.31mm 0.03kPa 24134m 6.6m/s 1.7m/s
22:00
6% 22°C 0mm 99% 0cm -26° 22°C 0.06mm 0.03kPa 24135m 7.2m/s 1.9m/s
23:00
4% 22°C 0mm 99% 0cm -32° 22°C 0.13mm 0.03kPa 24134m 7.3m/s 1.8m/s
Sat, Jul 11 Sunrise 05:18 Sunset 19:24
24:00
1% 22°C 0mm 99% 0cm -36° 22°C 0.19mm 0.04kPa 24134m 7.8m/s 2.1m/s
01:00
1% 21°C 0mm 98% 0cm -35° 22°C 0.19mm 0.04kPa 24135m 8.3m/s 2.3m/s
02:00
0% 22°C 0mm 98% 0cm -31° 22°C 0.25mm 0.07kPa 24135m 9.3m/s 2.2m/s
03:00
0% 22°C 0mm 98% 0cm -24° 22°C 0.31mm 0.04kPa 14734m 9.7m/s 2.4m/s
04:00
0% 22°C 0.003mm 96% 0cm -15° 23°C 0.31mm 0.12kPa 17061m 9.5m/s 2.9m/s
05:00
0% 22°C 0.007mm 93% 0cm -4.3° 24°C 0.31mm 0.21kPa 19387m 9.4m/s 3.3m/s
06:00
0% 23°C 0.01mm 90% 0cm 7.3° 24°C 0.31mm 0.31kPa 21714m 9.2m/s 3.8m/s
07:00
0% 23°C 0.02mm 86% 0cm 19° 25°C 0.44mm 0.45kPa 22209m 8.6m/s 3.8m/s
08:00
0% 23°C 0.04mm 82% 0cm 32° 26°C 0.56mm 0.61kPa 22703m 8m/s 3.9m/s
09:00
0% 23°C 0.05mm 78% 0cm 44° 27°C 0.69mm 0.79kPa 23198m 7.3m/s 3.9m/s
10:00
1% 23°C 0.04mm 80% 0cm 57° 26°C 0.52mm 0.68kPa 23510m 7.2m/s 3.7m/s
11:00
1% 23°C 0.02mm 82% 0cm 69° 26°C 0.35mm 0.58kPa 23822m 7m/s 3.4m/s
12:00
2% 23°C 0.01mm 85% 0cm 79° 25°C 0.19mm 0.49kPa 24135m 6.8m/s 3.2m/s
13:00
2% 22°C 0.01mm 90% 0cm 77° 24°C 0.23mm 0.31kPa 23781m 6.2m/s 2.7m/s
14:00
1% 22°C 0.01mm 95% 0cm 66° 23°C 0.27mm 0.16kPa 23426m 5.5m/s 2.3m/s
15:00
1% 22°C 0.01mm 99% 0cm 54° 22°C 0.31mm 0.02kPa 23072m 4.8m/s 1.8m/s
16:00
2% 22°C 0.007mm 99% 0cm 41° 22°C 0.25mm 0.02kPa 22194m 4.9m/s 1.7m/s
17:00
4% 22°C 0.003mm 99% 0cm 28° 22°C 0.19mm 0.02kPa 21315m 5m/s 1.7m/s
18:00
5% 22°C 0mm 99% 0cm 16° 22°C 0.13mm 0.02kPa 20437m 5.1m/s 1.7m/s
19:00
5% 22°C 0.007mm 99% 0cm 4.1° 22°C 0.17mm 0.02kPa 20643m 5.3m/s 1.7m/s
20:00
4% 22°C 0.01mm 99% 0cm -7.3° 22°C 0.21mm 0.02kPa 20849m 5.4m/s 1.7m/s
21:00
4% 22°C 0.02mm 99% 0cm -18° 22°C 0.25mm 0.03kPa 21055m 5.5m/s 1.7m/s
22:00
3% 22°C 0.01mm 99% 0cm -26° 22°C 0.21mm 0.03kPa 20870m 5.4m/s 1.6m/s
How to read: these inputs help produce the derived score; they are not requirements by themselves.

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