Japan weather in May 2026

Expect daytime maximum temperatures of 23°C in 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 132 mm of rainfall in the month.

  • 23°C maximum daytime temperature in May in Japan (Tokyo)23
    23°C max day temperature
  • 6 hours of sunshine per day
  • 16 days with some rainfall in May in Japan (Tokyo)16
    16 days with some rainfall
  • 14°C minimum night-time temperature in May in Japan (Tokyo)14
    14°C min night temperature
  • 14 hours of daylight per day in May in Japan (Tokyo)14
    14 hours of daylight per day
  • No heat & humidity in May in Japan (Tokyo)0
    No heat & humidity
  • 132 mm monthly rainfall in May in Japan (Tokyo)132
    132 mm of monthly rainfall
  • UV (maximum) index 9 (Very High) in May in Japan (Tokyo)9
    9 (Very High) UV index
  • 18°C sea temperature in May in Japan (Tokyo)18
    18°C sea temperature

More about Japan

Japan by month

Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec

Recommended for Japan

Hawaiian Airlines: Top deals on flights to/from Hawaii

  • Save on flights to/from Hawaii with Hawaiian Airlines
  • Browse popular routes & find best fares
  • Plus check out top tips on flying to Hawaii & more
Go to Hawaiian Airlines deal >>

The May weather guide for Japan (Tokyo) 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.

Top Japan destinations

Below are average maximum temperatures at popular countries, regions and places in Japan in May. Select a holiday destination to see more weather parameters.

All Japan destinations

Metric (°C / mm)  |  Imperial (°F / inches)

Back to top

More about Japan

How hot is it in Japan in May?

Daytime temperatures usually reach 23°C in Tokyo, Japan in May, falling to 14°C at night.

How sunny is it in Japan in May?

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

How warm is the sea around Japan in May?

The average sea temperature around Tokyo, Japan in May is 18°C.

Does it rain in Japan in May?

There are usually 16 days with some rain in Tokyo, Japan in May and the average monthly rainfall is 132mm.

Japan May sunrise & sunset times

Browse the sunrise and sunset times for Japan in May 2026. Select a month to view Japan sunrise and sunset times for the next 12 months. The Japan sunrise and sunset times shown below are for Tokyo.

JanFebMarAprMayJunJulAugSepOctNovDec

Date Sunrise times Sunset times
Friday, 1st May 2026 04:50 18:27
Saturday, 16th May 2026 04:36 18:40
Sunday, 31st May 2026 04:27 18:51

Related posts

Popular travel offers

Explore holidays in the sun for less

More holidays

Airport parking

More parking

Airport lounges

More lounges

Top ^