Rule Fire Sky

Fire Sky Forecast for Yakushima, Kyushu

Koseda, Kagoshima, Japan

Yakushima's roots and boardwalks wind through dense moss-covered cedar forest. Massive trunks overlap at short intervals, making depth and scale visible beneath the closed canopy.

Currently

Real-time conditions

Fiery Red Sky Potential

Low Cloud Cover1%

Mid Cloud Cover0%

High Cloud Cover76%

Aerosol Optical Depth0.1

Sun Elevation-10.8° (Nautical twilight)

Upcoming Opportunities

When all conditions match, PhotoWeather marks an opportunity window.

Times shown in Asia/Tokyo

Next opportunity

Excellent Fiery Red Sky at Sunset

Yakushima

Tomorrow · 19:00–19:05 · 1h window

Medium confidence

46%

🔥Fiery Red Sky Potential76.1%

Low Cloud Cover: 1%

Mid Cloud Cover: 0%

High Cloud Cover: 99%

Sun Elevation: -2.8° (Civil twilight)

How this forecast is evaluated

See which weather signals PhotoWeather uses to identify Fire Sky conditions across Kyushu. The requirements and hourly values below show how those signals apply at Yakushima.

Explore Fire Sky conditions across Kyushu →

Recorded match history

Completed PhotoWeather forecast matches recorded for this exact rule at Yakushima during the last 365 days.

Last 30 days

recorded matching windows · 71% average confidence

Last 90 days

recorded matching windows · 70% average confidence

Last 365 days

recorded matching windows · 71% average confidence

Most frequent recorded start hour

19:00 local time, shared by 23 of 42 matches recorded in the last 365 days.

Most represented month

July, with 13 of 42 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

1matching hours in the next 95 hoursJump to next match

AND logic: all conditions required

Meets requirement

Misses requirement

Time Asia/Tokyo	Golden Hour Any	Fiery Red Sky Potential ≥ 65.0%	Precipitation Chance ≤ 15.0%	Visibility ≥ 8000.0m
Sat, Aug 22
04:00	✕	8%	39%	24135m
05:00	✓	7.9%	39%	24135m
06:00	✓	24%	39%	24135m
07:00	✕	5.7%	39%	24135m
08:00	✕	11%	39%	24134m
09:00	✕	6.7%	39%	24134m
10:00	✕	10%	27%	20100m
11:00	✕	11%	15%	24135m
12:00	✕	4.9%	3.5%	24135m
13:00	✕	6.3%	15%	24134m
14:00	✕	12%	27%	24134m
15:00	✕	13%	39%	24134m
16:00	✕	13%	33%	24134m
17:00	✕	7%	28%	24135m
18:00	✓	5.4%	22%	24135m
19:00	✓	38%	28%	20061m
20:00	✕	9.9%	33%	18485m
21:00	✕	10%	39%	20299m
22:00	✕	7.6%	54%	23257m
23:00	✕	6.7%	44%	23256m
Sun, Aug 23
24:00	✕	6.3%	34%	19852m
01:00	✕	5.1%	50%	23798m
02:00	✕	5%	66%	24134m
03:00	✕	6.6%	82%	18546m
04:00	✕	10%	68%	18415m
05:00	✓	28%	53%	18384m
06:00	✓	55%	39%	24135m
07:00	✕	29%	53%	23540m
08:00	✕	29%	68%	24134m
09:00	✕	19%	82%	24134m
10:00	✕	32%	55%	22189m
11:00	✕	32%	27%	24134m
12:00	✕	28%	0%	23512m
13:00	✕	17%	13%	23233m
14:00	✕	20%	26%	24135m
15:00	✕	17%	39%	23244m
16:00	✕	22%	26%	23415m
17:00	✕	14%	13%	24134m
18:00	✓	13%	0%	24134m
19:00	✓	56%	13%	24134m
20:00	✕	12%	26%	24135m
21:00	✕	29%	39%	24135m
22:00	✕	31%	36%	24135m
23:00	✕	34%	32%	24134m
Mon, Aug 24
24:00	✕	28%	29%	24135m
01:00	✕	29%	46%	24135m
02:00	✕	32%	64%	24134m
03:00	✕	29%	82%	24135m
04:00	✕	29%	63%	24134m
05:00	✓	27%	43%	24134m
06:00	✓	33%	24%	24134m
07:00	✕	13%	29%	24134m
08:00	✕	13%	34%	24134m
09:00	✕	24%	39%	24134m
10:00	✕	21%	26%	24134m
11:00	✕	31%	13%	24134m
12:00	✕	29%	0%	24135m
13:00	✕	30%	13%	24134m
14:00	✕	31%	26%	24134m
15:00	✕	30%	39%	24134m
16:00	✕	31%	26%	24134m
17:00	✕	33%	13%	24135m
18:00	✓	31%	0%	24135m
19:00	✓	76%	13%	24134m
20:00	✕	33%	26%	24134m
21:00	✕	33%	39%	24134m
22:00	✕	31%	26%	23755m
23:00	✕	24%	13%	23276m
Tue, Aug 25
24:00	✕	17%	0%	23240m
01:00	✕	5%	13%	24135m
02:00	✕	1%	26%	23305m
03:00	✕	17%	39%	23252m
04:00	✕	13%	36%	19430m
05:00	✓	11%	32%	18432m
06:00	✓	28%	29%	24134m
07:00	✕	18%	32%	24135m
08:00	✕	13%	35%	24134m
09:00	✕	12%	39%	18677m
10:00	✕	0%	32%	16343m
11:00	✕	0%	25%	14010m
12:00	✕	0%	18%	11676m
13:00	✕	0%	30%	14666m
14:00	✕	0%	41%	17657m
15:00	✕	0%	52%	20647m
16:00	✕	0%	58%	21079m
17:00	✕	0%	63%	21511m
18:00	✓	0%	68%	21943m
19:00	✓	15%	70%	21979m
20:00	✕	0%	71%	22016m
21:00	✕	0%	72%	22053m
22:00	✕	0%	74%	22557m
23:00	✕	0%	76%	23062m
Wed, Aug 26
24:00	✕	0%	78%	23566m
01:00	✕	0%	80%	22955m
02:00	✕	0%	81%	22343m

How to read: colored cells show whether each predicate requirement is met; highlighted rows mean the full rule matched (an opportunity).

What does Fiery Red Sky Potential 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	Aerosol Optical Depth (550nm)	Clear Sky Probability (Ensemble) %	Cloud Cover Uncertainty (Ensemble) %	Dust AOD (550nm)	Golden Hour	High Clouds %	Low Clouds %	Mid-Level Clouds %	RH @ 700 hPa %	Smoke AOD (550nm)	Solar Elevation °	Sunshine Duration seconds
Sun, Aug 23 Sunrise 05:48 Sunset 18:52
05:00 ☾	0.07	87%	15%	0.003	-	76%	1%	0%	32%	0.008	-11°	0seconds
06:00 ☾	0.07	81%	20%	0.003	-	92%	1%	0%	31%	0.008	1.9°	0seconds
07:00 ☾	0.07	81%	20%	0.003	-	73%	1%	0%	38%	0.008	14°	0seconds
08:00 ☾	0.07	80%	19%	0.003	-	33%	1%	0%	45%	0.008	27°	0seconds
09:00	0.07	80%	19%	0.003	-	5%	0%	0%	53%	0.008	40°	0seconds
10:00	0.07	86%	17%	0.003	-	60%	0%	0%	51%	0.008	52°	3600seconds
11:00	0.07	92%	14%	0.003	-	83%	0%	0%	50%	0.008	63°	3600seconds
12:00	0.08	98%	12%	0.003	-	100%	0%	0%	49%	0.008	71°	3600seconds
13:00	0.09	98%	10%	0.002	-	51%	0%	0%	45%	0.008	69°	3600seconds
14:00	0.1	99%	8%	0.002	-	7%	2%	0%	41%	0.008	60°	3600seconds
15:00	0.11	99%	6%	0.002	-	4%	1%	0%	37%	0.009	48°	3600seconds
16:00	0.1	95%	10%	0.002	-	33%	2%	0%	38%	0.009	36°	3600seconds
17:00	0.1	90%	14%	0.002	-	2%	1%	0%	39%	0.008	23°	3600seconds
18:00	0.11	86%	18%	0.002	-	3%	1%	0%	40%	0.008	10°	3600seconds
19:00 ☾	0.11	78%	19%	0.002	-	0%	8%	0%	40%	0.009	-2.6°	3600seconds
20:00 ☾	0.11	70%	21%	0.002	-	5%	1%	0%	40%	0.009	-15°	3600seconds
21:00 ☾	0.11	62%	22%	0.002	-	88%	1%	0%	41%	0.009	-26°	3600seconds
22:00 ☾	0.12	59%	27%	0.001	-	99%	1%	0%	41%	0.009	-36°	0seconds
23:00 ☾	0.12	57%	31%	0.001	-	34%	1%	0%	41%	0.008	-44°	0seconds
Mon, Aug 24 Sunrise 05:48 Sunset 18:50
24:00 ☾	0.12	54%	36%	0.001	-	17%	44%	0%	41%	0.008	-48°	0seconds
01:00 ☾	0.12	53%	33%	0.001	-	77%	19%	0%	40%	0.007	-47°	0seconds
02:00 ☾	0.13	53%	30%	0.001	-	70%	1%	0%	39%	0.007	-42°	0seconds
03:00 ☾	0.12	52%	27%	0.001	-	99%	1%	0%	38%	0.007	-33°	0seconds
04:00 ☾	0.12	53%	31%	0.001	-	100%	2%	0%	37%	0.007	-23°	0seconds
05:00 ☾	0.12	54%	35%	0.001	-	100%	4%	0%	35%	0.007	-11°	0seconds
06:00 ☾	0.12	55%	39%	0.001	-	98%	48%	0%	33%	0.007	1.7°	0seconds
07:00 ☾	0.13	53%	37%	0.001	-	100%	92%	0%	32%	0.007	14°	0seconds
08:00 ☾	0.13	51%	36%	0.001	-	54%	95%	0%	32%	0.007	27°	0seconds
09:00	0.13	49%	34%	0.001	-	11%	61%	0%	31%	0.007	40°	0seconds
10:00	-	42%	34%	-	-	5%	0%	0%	32%	-	52°	3600seconds
11:00	-	36%	35%	-	-	6%	0%	0%	32%	-	63°	3600seconds
12:00	-	29%	35%	-	-	96%	0%	0%	33%	-	70°	3600seconds
13:00	-	29%	34%	-	-	100%	0%	0%	32%	-	69°	3600seconds
14:00	-	30%	34%	-	-	100%	0%	0%	32%	-	60°	3600seconds
15:00	-	30%	33%	-	-	96%	1%	0%	31%	-	48°	3600seconds
16:00	-	34%	33%	-	-	100%	0%	0%	32%	-	36°	3600seconds
17:00	-	39%	33%	-	-	100%	0%	0%	34%	-	23°	3600seconds
18:00	-	43%	33%	-	-	99%	2%	0%	35%	-	9.9°	3600seconds
19:00 ☾	-	46%	33%	-	-	99%	1%	0%	35%	-	-2.8°	3600seconds
20:00 ☾	-	48%	32%	-	-	96%	1%	0%	35%	-	-15°	3600seconds
21:00 ☾	-	51%	32%	-	-	89%	1%	0%	35%	-	-27°	3600seconds
22:00 ☾	-	56%	33%	-	-	36%	2%	0%	35%	-	-37°	0seconds
23:00 ☾	-	61%	35%	-	-	3%	38%	0%	34%	-	-44°	0seconds
Tue, Aug 25 Sunrise 05:49 Sunset 18:49
24:00 ☾	-	66%	36%	-	-	3%	23%	0%	34%	-	-48°	0seconds
01:00 ☾	-	62%	35%	-	-	6%	76%	0%	34%	-	-48°	0seconds
02:00 ☾	-	59%	33%	-	-	4%	90%	0%	33%	-	-42°	0seconds
03:00 ☾	-	55%	32%	-	-	11%	74%	0%	33%	-	-34°	0seconds
04:00 ☾	-	52%	31%	-	-	5%	2%	0%	36%	-	-23°	0seconds
05:00 ☾	-	48%	30%	-	-	0%	5%	0%	38%	-	-11°	0seconds
06:00 ☾	-	45%	29%	-	-	0%	4%	0%	41%	-	1.6°	0seconds
07:00 ☾	-	45%	27%	-	-	0%	3%	0%	41%	-	14°	0seconds
08:00 ☾	-	46%	25%	-	-	2%	4%	0%	42%	-	27°	0seconds
09:00	-	46%	23%	-	-	21%	4%	0%	43%	-	40°	0seconds
10:00	-	46%	27%	-	-	48%	13%	1%	51%	-	52°	1200seconds
11:00	-	46%	31%	-	-	74%	23%	2%	60%	-	63°	2400seconds
12:00	-	46%	35%	-	-	100%	33%	3%	68%	-	70°	3600seconds
13:00	-	40%	33%	-	-	100%	27%	2%	72%	-	68°	2400seconds
14:00	-	35%	32%	-	-	100%	22%	2%	77%	-	60°	1200seconds
15:00	-	29%	30%	-	-	100%	16%	1%	82%	-	48°	0seconds
16:00	-	26%	32%	-	-	100%	24%	1%	80%	-	35°	0seconds
17:00	-	23%	34%	-	-	100%	31%	1%	79%	-	23°	0seconds
18:00	-	20%	36%	-	-	100%	39%	1%	77%	-	9.7°	0seconds
19:00 ☾	-	17%	34%	-	-	100%	35%	16%	80%	-	-3.1°	0seconds
20:00 ☾	-	15%	32%	-	-	100%	31%	31%	82%	-	-15°	0seconds
21:00 ☾	-	12%	30%	-	-	100%	27%	46%	85%	-	-27°	0seconds
22:00 ☾	-	10%	27%	-	-	100%	22%	52%	82%	-	-37°	0seconds
23:00 ☾	-	7%	25%	-	-	100%	17%	58%	79%	-	-45°	0seconds
Wed, Aug 26 Sunrise 05:50 Sunset 18:48
24:00 ☾	-	5%	22%	-	-	100%	12%	64%	77%	-	-49°	0seconds
01:00 ☾	-	5%	22%	-	-	100%	12%	76%	66%	-	-48°	0seconds
02:00 ☾	-	5%	23%	-	-	100%	12%	88%	55%	-	-42°	0seconds
03:00 ☾	-	5%	23%	-	-	100%	12%	100%	45%	-	-34°	0seconds
04:00 ☾	-	4%	21%	-	-	100%	12%	100%	43%	-	-23°	1200seconds

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

Aug 22, 2026, 7:02 PM UTC

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