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Yakushima weather in September 2025
Expect 77°F daytime maximum temperatures in the shade with on average 5 hours of sunshine per day in Yakushima in September. Check more long-term weather averages for Yakushima in September before you book your next holiday to Japan in 2025/2026.
- 7777°F max day temperature
- 5 hours of sunshine per day
- 2020 days with some rainfall
- 6868°F min night temperature
- 1212 hours of daylight per day
- MModerate heat & humidity
- 13.013.0 inches of monthly rainfall
- 99 (Very High) UV index
- 8282°F sea temperature
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Recommended for Japan
The September weather guide for Japan (Yakushima) shows long term weather averages processed from data supplied by CRU (University of East Anglia), the Met Office & the Netherlands Meteorological Institute. Find out more about our data sources.
Metric (°C) | Imperial (°F)
More about Japan
How hot is it in Yakushima in September?
Daytime temperatures usually reach 77°F in Yakushima in September with moderate heat and humidity, falling to 68°F at night.
How sunny is it in Yakushima in September?
There are normally 5 hours of bright sunshine each day in Yakushima in September - that's 43% of daylight hours.
How warm is the sea around Yakushima in September?
The average sea temperature around Yakushima in September is 82°F.
Does it rain in Yakushima in September?
There are usually 20 days with some rain in Yakushima in September and the average monthly rainfall is 13.0 inches.
What is the chance of a typhoon in Yakushima in September?
On average 1.7 days in September in Yakushima are likely to be affected by the passage of one or more tropical storms.
Yakushima September sunrise & sunset times
Browse the sunrise and sunset times for Yakushima in September 2025. Select a month to view Yakushima sunrise and sunset times for the next 12 months.
JanFebMarAprMayJunJulAugSepOctNovDec
Date | Sunrise times | Sunset times |
---|---|---|
Monday, 1st September 2025 | 05:54 | 18:40 |
Monday, 15th September 2025 | 06:02 | 18:23 |
Tuesday, 30th September 2025 | 06:10 | 18:04 |
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