Kumamoto weather in May 2025

Expect 25°C daytime maximum temperatures in the shade with on average 6 hours of sunshine per day in Kumamoto in May. Check more long-term weather averages for Kumamoto in May before you book your next holiday to Japan in 2025/2026.

  • 25°C maximum daytime temperature in May in Kumamoto25
    25°C max day temperature
  • 6 hours of sunshine per day
  • 16 days with some rainfall in May in Kumamoto16
    16 days with some rainfall
  • 15°C minimum night-time temperature in May in Kumamoto15
    15°C min night temperature
  • 14 hours of daylight per day in May in Kumamoto14
    14 hours of daylight per day
  • Low heat & humidity in May in KumamotoL
    Low heat & humidity
  • 209 mm monthly rainfall in May in Kumamoto209
    209 mm of monthly rainfall
  • UV (maximum) index 10 (Very High) in May in Kumamoto10
    10 (Very High) UV index
  • 19°C sea temperature in May in Kumamoto19
    19°C sea temperature

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The May weather guide for Japan (Kumamoto) 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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How hot is it in Kumamoto in May?

Daytime temperatures usually reach 25°C in Kumamoto in May with low heat and humidity, falling to 15°C at night.

How sunny is it in Kumamoto in May?

There are normally 6 hours of bright sunshine each day in Kumamoto in May - that's 41% of daylight hours.

How warm is the sea around Kumamoto in May?

The average sea temperature around Kumamoto in May is 19°C.

Does it rain in Kumamoto in May?

There are usually 16 days with some rain in Kumamoto in May and the average monthly rainfall is 209mm.

Kumamoto May sunrise & sunset times

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

JanFebMarAprMayJunJulAugSepOctNovDec

Date Sunrise times Sunset times
Thursday, 1st May 2025 05:30 18:59
Friday, 16th May 2025 05:18 19:10
Saturday, 31st May 2025 05:10 19:20

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