Weather in Japan in May 2018

Check the weather in Japan in May based on long-term weather averages before you book your next holiday to Japan in 2018. Expect daytime temperatures to reach 23°C with on average 6 hours of sunshine per day in Japan in May. The May weather averages shown below are for Tokyo.

Weather in Japan in May

  • 23°C maximum daytime temperature in May in Japan (Tokyo)23
    23°C max day temperature
  • 6 hours of sunshine per day (42% of daylight hours) in May in Japan6
    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

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

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More about Japan weather in May

The average maximum daytime temperature in Japan in May is a warm 23°C (73°F). There are usually 6 hours of bright sunshine each day, which represents 42% of the 14 hours of daylight. The average sea temperature in and around Japan in May is 18°C (64°F).

Expect 132mm (5.2 inches) of rainfall across the whole of May with 16 days with some rain falling. Maximum UV levels will be very high (9 UV index) at midday when the skies are clear. The average night-time temperature is usually a comfortable 14°C (57°F). The weather in Japan in May is represented by Tokyo.

Japan sunrise & sunset times for May 2018

Browse the sunrise & sunset times for Japan in May 2018. Select a month to view Japan sunrise & sunset times for the next twelve months. The Japan sunrise & sunset times shown below are for Tokyo.

JanFebMarAprMayJunJulAugSepOctNovDec

Date Sunrise times Sunset times
Tuesday, 1st May 2018 04:50 18:27
Wednesday, 2nd May 2018 04:49 18:28
Thursday, 3rd May 2018 04:47 18:29
Friday, 4th May 2018 04:46 18:30
Saturday, 5th May 2018 04:45 18:31
Sunday, 6th May 2018 04:44 18:31
Monday, 7th May 2018 04:43 18:32
Tuesday, 8th May 2018 04:42 18:33
Wednesday, 9th May 2018 04:42 18:34
Thursday, 10th May 2018 04:41 18:35
Friday, 11th May 2018 04:40 18:35
Saturday, 12th May 2018 04:39 18:36
Sunday, 13th May 2018 04:38 18:37
Monday, 14th May 2018 04:37 18:38
Tuesday, 15th May 2018 04:36 18:39
Wednesday, 16th May 2018 04:36 18:40
Thursday, 17th May 2018 04:35 18:40
Friday, 18th May 2018 04:34 18:41
Saturday, 19th May 2018 04:33 18:42
Sunday, 20th May 2018 04:33 18:43
Monday, 21st May 2018 04:32 18:43
Tuesday, 22nd May 2018 04:31 18:44
Wednesday, 23rd May 2018 04:31 18:45
Thursday, 24th May 2018 04:30 18:46
Friday, 25th May 2018 04:30 18:46
Saturday, 26th May 2018 04:29 18:47
Sunday, 27th May 2018 04:29 18:48
Monday, 28th May 2018 04:28 18:49
Tuesday, 29th May 2018 04:28 18:49
Wednesday, 30th May 2018 04:27 18:50
Thursday, 31st May 2018 04:27 18:51
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Check Japan weather for a particular month by selecting from the list below. Monthly weather guides include figures for temperature, rainfall, sunshine hours and sea temperature plus daily sunrise & sunset times.

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