Yakushima weather in August 2025

Expect 27°C daytime maximum temperatures in the shade with on average 7 hours of sunshine per day in Yakushima in August. Check more long-term weather averages for Yakushima in August before you book your next holiday to Japan in 2025/2026.

  • 27°C maximum daytime temperature in August in Yakushima27
    27°C max day temperature
  • 7 hours of sunshine per day
  • 21 days with some rainfall in August in Yakushima21
    21 days with some rainfall
  • 21°C minimum night-time temperature in August in Yakushima21
    21°C min night temperature
  • 13 hours of daylight per day in August in Yakushima13
    13 hours of daylight per day
  • High heat & humidity in August in YakushimaH
    High heat & humidity
  • 260 mm monthly rainfall in August in Yakushima260
    260 mm of monthly rainfall
  • UV (maximum) index 11 (Extreme) in August in Yakushima11
    11 (Extreme) UV index
  • 29°C sea temperature in August in Yakushima29
    29°C sea temperature

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The August 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 / mm)  |  Imperial (°F / inches)

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More about Japan

How hot is it in Yakushima in August?

Daytime temperatures usually reach 27°C in Yakushima in August with high heat and humidity, falling to 21°C at night.

How sunny is it in Yakushima in August?

There are normally 7 hours of bright sunshine each day in Yakushima in August - that's 50% of daylight hours.

How warm is the sea around Yakushima in August?

The average sea temperature around Yakushima in August is 29°C.

Does it rain in Yakushima in August?

There are usually 21 days with some rain in Yakushima in August and the average monthly rainfall is 260mm.

What is the chance of a typhoon in Yakushima in August?

On average 2.8 days in August in Yakushima are likely to be affected by the passage of one or more tropical storms.

Yakushima August sunrise & sunset times

Browse the sunrise and sunset times for Yakushima in August 2025. Select a month to view Yakushima sunrise and sunset times for the next 12 months.

JanFebMarAprMayJunJulAugSepOctNovDec

Date Sunrise times Sunset times
Friday, 1st August 2025 05:36 19:11
Saturday, 16th August 2025 05:45 18:58
Sunday, 31st August 2025 05:53 18:42

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