Temperature
Pleasant by day, mild at night.
66°Ftypical September high
Typical range
September climate
September in Yakushima
Japan · Asia
Mild days and some sun. Heavier storm-season rain is the main drawback.
Some tradeoffs
Daytime high
66°F
Lows around 64°F
Rain
Frequent rain
Sun
9.5 h/day
Air feel
Comfortable
When to visit
Month-by-month fit
Best
Precipitation
Rain is frequent. About 17 wet days, more than in most months.
57%wet-day frequency
AmountWet-day chance
Sunshine
Plenty of sun this month.
9.6 hSeptember sunshine
Heat & humidity by month
ComfortableSeptember
Hourly temperature pattern
In September, afternoons feel about 57° and nights feel near 56°.
FreezingVery coldColdCoolNight hours
Clear sky
Partly cloudy skies this month.
47%September Clear sky
Clear skyCloud
Wind pattern
Breezy conditions are typical in September. More a comfort consideration than a planning concern.
15 mphSeptember Breezy
More detailIncludes daypart comfort
Typical September day
September stays around 64°F through the day and night.
Avg temp Typical range
Morning63°F
Rain35%
Cloud56%
Humid airLow
Sun intensityModerate
Midday63°F
Rain31%
Cloud57%
Humid airLow
Sun intensityStrong
Late afternoon64°F
Rain28%
Cloud57%
Humid airLow
Sun intensityModerate
Best windowEarly evening64°F
Rain30%
Cloud58%
Humid airLow
Sun intensityMinimal
Data tableView month-by-month numbers
View month-by-month numbers
| Month | High°F | Low°F | Rainin | Wet days | Sunh | Humidity% |
|---|---|---|---|---|---|---|
| Jan | 43 | 38 | 5.4 | 16 | 5.7 | 66 |
| Feb | 44 | 39 | 5.8 | 15 | 6.6 | 67 |
| Mar | 48 | 44 | 7.3 | 16 | 7.2 | 68 |
| Apr | 53 | 49 | 9.1 | 15 | 8.5 | 70 |
| May | 57 | 53 | 13.5 | 18 | 8.8 | 75 |
| Jun | 62 | 59 | 16.7 | 18 | 7.4 | 84 |
| Jul | 66 | 64 | 7.8 | 18 | 10.8 | 86 |
| Aug | 67 | 65 | 8.7 | 17 | 11.2 | 83 |
| Sep | 66 | 64 | 5.5 | 17 | 9.6 | 79 |
| Oct | 61 | 58 | 7.4 | 15 | 8.3 | 71 |
| Nov | 54 | 50 | 5.7 | 14 | 7.1 | 66 |
| Dec | 46 | 41 | 4.8 | 15 | 6.1 | 65 |
Similar climates
Similar
Similar travel stylePuconChileSimilar travel styleNikkoJapanSimilar travel styleTaupoNew ZealandSimilar travel styleEl ChaltenArgentina
Want a side-by-side climate view? Compare Yakushima with Pucon.
Climate data notePlanning guidance, not a forecast
Typical monthly values are based on long-term climate records. Useful for planning, not a forecast. Check the weather before you travel.
Sunshine: source type is not yet identified at metric level.
Local microclimates can vary by beach, neighborhood, trail, or elevation.
Last updated: Jul 31, 2026
Data & methodology