Nagasaki weather in May 2026

Expect daytime maximum temperatures of 23°C in Nagasaki, Japan in May based on long-term weather averages. There are 6 hours of sunshine per day on average with 16 days with some rainfall and typically 214 mm of rainfall in the month.

  • 23°C maximum daytime temperature in May in Nagasaki23
    23°C max day temperature
  • 6 hours of sunshine per day
  • 16 days with some rainfall in May in Nagasaki16
    16 days with some rainfall
  • 15°C minimum night-time temperature in May in Nagasaki15
    15°C min night temperature
  • 14 hours of daylight per day in May in Nagasaki14
    14 hours of daylight per day
  • No heat & humidity in May in Nagasaki0
    No heat & humidity
  • 214 mm monthly rainfall in May in Nagasaki214
    214 mm of monthly rainfall
  • UV (maximum) index 10 (Very High) in May in Nagasaki10
    10 (Very High) UV index
  • 19°C sea temperature in May in Nagasaki19
    19°C sea temperature

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

Daytime temperatures usually reach 23°C in Nagasaki in May, falling to 15°C at night.

How sunny is it in Nagasaki in May?

There are normally 6 hours of bright sunshine each day in Nagasaki in May - that's 42% of daylight hours.

How warm is the sea around Nagasaki in May?

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

Does it rain in Nagasaki in May?

There are usually 16 days with some rain in Nagasaki in May and the average monthly rainfall is 214mm.

Nagasaki May sunrise & sunset times

Browse the sunrise and sunset times for Nagasaki in May 2026. Select a month to view Nagasaki sunrise and sunset times for the next 12 months.

JanFebMarAprMayJunJulAugSepOctNovDec

Date Sunrise times Sunset times
Friday, 1st May 2026 05:34 19:02
Saturday, 16th May 2026 05:21 19:13
Sunday, 31st May 2026 05:14 19:23

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