Niigata weather in May 2025

Expect 70°F daytime maximum temperatures in the shade with on average 7 hours of sunshine per day in Niigata in May. Check more long-term weather averages for Niigata in May before you book your next holiday to Japan in 2025/2026.

  • 70°F maximum daytime temperature in May in Niigata70
    70°F max day temperature
  • 7 hours of sunshine per day
  • 17 days with some rainfall in May in Niigata17
    17 days with some rainfall
  • 54°F minimum night-time temperature in May in Niigata54
    54°F min night temperature
  • 14 hours of daylight per day in May in Niigata14
    14 hours of daylight per day
  • No heat & humidity in May in Niigata0
    No heat & humidity
  • 3.8 inches monthly rainfall in May in Niigata3.8
    3.8 inches of monthly rainfall
  • UV (maximum) index 8 (Very High) in May in Niigata8
    8 (Very High) UV index
  • 57°F sea temperature in May in Niigata57
    57°F sea temperature

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The May weather guide for Japan (Niigata) 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 Niigata in May?

Daytime temperatures usually reach 70°F in Niigata in May, falling to 54°F at night.

How sunny is it in Niigata in May?

There are normally 7 hours of bright sunshine each day in Niigata in May - that's 47% of daylight hours.

How warm is the sea around Niigata in May?

The average sea temperature around Niigata in May is 57°F.

Does it rain in Niigata in May?

There are usually 17 days with some rain in Niigata in May and the average monthly rainfall is 3.8 inches.

Niigata May sunrise & sunset times

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

JanFebMarAprMayJunJulAugSepOctNovDec

Date Sunrise times Sunset times
Thursday, 1st May 2025 04:48 18:34
Friday, 16th May 2025 04:33 18:48
Saturday, 31st May 2025 04:24 19:00

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