Tokyo weather in September 2025

Expect daytime maximum temperatures of 27°C in Tokyo, Japan in September based on long-term weather averages. There are 4 hours of sunshine per day on average with 19 days with some rainfall and typically 181 mm of rainfall in the month.

  • 27°C maximum daytime temperature in September in Tokyo27
    27°C max day temperature
  • 4 hours of sunshine per day
  • 19 days with some rainfall in September in Tokyo19
    19 days with some rainfall
  • 20°C minimum night-time temperature in September in Tokyo20
    20°C min night temperature
  • 12 hours of daylight per day in September in Tokyo12
    12 hours of daylight per day
  • Low heat & humidity in September in TokyoL
    Low heat & humidity
  • 181 mm monthly rainfall in September in Tokyo181
    181 mm of monthly rainfall
  • UV (maximum) index 8 (Very High) in September in Tokyo8
    8 (Very High) UV index
  • 25°C sea temperature in September in Tokyo25
    25°C sea temperature

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The September 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.

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

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More about Japan

How hot is it in Tokyo in September?

Daytime temperatures usually reach 27°C in Tokyo in September with low heat and humidity, falling to 20°C at night.

How sunny is it in Tokyo in September?

There are normally 4 hours of bright sunshine each day in Tokyo in September - that's 31% of daylight hours.

How warm is the sea around Tokyo in September?

The average sea temperature around Tokyo in September is 25°C.

Does it rain in Tokyo in September?

There are usually 19 days with some rain in Tokyo in September and the average monthly rainfall is 181mm.

What is the chance of a typhoon in Tokyo in September?

On average 1.4 days in September in Tokyo are likely to be affected by the passage of one or more tropical storms.

Tokyo September sunrise & sunset times

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

JanFebMarAprMayJunJulAugSepOctNovDec

Date Sunrise times Sunset times
Monday, 1st September 2025 05:13 18:09
Monday, 15th September 2025 05:23 17:48
Tuesday, 30th September 2025 05:35 17:26

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