Osaka weather in May 2025

Expect 75°F daytime maximum temperatures in the shade with on average 6 hours of sunshine per day in Osaka in May. Check more long-term weather averages for Osaka in May before you book your next holiday to Japan in 2025/2026.

  • 75°F maximum daytime temperature in May in Osaka75
    75°F max day temperature
  • 6 hours of sunshine per day
  • 15 days with some rainfall in May in Osaka15
    15 days with some rainfall
  • 59°F minimum night-time temperature in May in Osaka59
    59°F min night temperature
  • 14 hours of daylight per day in May in Osaka14
    14 hours of daylight per day
  • No heat & humidity in May in Osaka0
    No heat & humidity
  • 5.6 inches monthly rainfall in May in Osaka5.6
    5.6 inches of monthly rainfall
  • UV (maximum) index 9 (Very High) in May in Osaka9
    9 (Very High) UV index
  • 64°F sea temperature in May in Osaka64
    64°F sea temperature

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The May weather guide for Japan (Osaka) 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)

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More about Japan

How hot is it in Osaka in May?

Daytime temperatures usually reach 75°F in Osaka in May, falling to 59°F at night.

How sunny is it in Osaka in May?

There are normally 6 hours of bright sunshine each day in Osaka in May - that's 44% of daylight hours.

How warm is the sea around Osaka in May?

The average sea temperature around Osaka in May is 64°F.

Does it rain in Osaka in May?

There are usually 15 days with some rain in Osaka in May and the average monthly rainfall is 5.6 inches.

Osaka May sunrise & sunset times

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

JanFebMarAprMayJunJulAugSepOctNovDec

Date Sunrise times Sunset times
Thursday, 1st May 2025 05:08 18:43
Friday, 16th May 2025 04:55 18:55
Saturday, 31st May 2025 04:47 19:05

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