Koya weather in June 2025

Expect 23°C daytime maximum temperatures in the shade with on average 5 hours of sunshine per day in Koya in June. Check more long-term weather averages for Koya in June before you book your next holiday to Japan in 2025/2026.

  • 23°C maximum daytime temperature in June in Koya23
    23°C max day temperature
  • 5 hours of sunshine per day
  • 19 days with some rainfall in June in Koya19
    19 days with some rainfall
  • 16°C minimum night-time temperature in June in Koya16
    16°C min night temperature
  • 14 hours of daylight per day in June in Koya14
    14 hours of daylight per day
  • No heat & humidity in June in Koya0
    No heat & humidity
  • 295 mm monthly rainfall in June in Koya295
    295 mm of monthly rainfall
  • UV (maximum) index 11 (Extreme) in June in Koya11
    11 (Extreme) UV index

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The June weather guide for Japan (Koya) 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 Koya in June?

Daytime temperatures usually reach 23°C in Koya in June, falling to 16°C at night.

How sunny is it in Koya in June?

There are normally 5 hours of bright sunshine each day in Koya in June - that's 33% of daylight hours.

Does it rain in Koya in June?

There are usually 19 days with some rain in Koya in June and the average monthly rainfall is 295mm.

What is the chance of a typhoon in Koya in June?

On average less than 1 day in June in Koya is likely to be affected by the passage of one or more tropical storms.

Koya June sunrise & sunset times

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

JanFebMarAprMayJunJulAugSepOctNovDec

Date Sunrise times Sunset times
Sunday, 1st June 2025 04:47 19:04
Sunday, 15th June 2025 04:45 19:11
Monday, 30th June 2025 04:49 19:14

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