Oita weather in September 2026

Expect daytime maximum temperatures of 27°C in Oita, Japan in September based on long-term weather averages. There are 5 hours of sunshine per day on average with 17 days with some rainfall and typically 233 mm of rainfall in the month.

  • 27°C maximum daytime temperature in September in Oita27
    27°C max day temperature
  • 5 hours of sunshine per day
  • 17 days with some rainfall in September in Oita17
    17 days with some rainfall
  • 19°C minimum night-time temperature in September in Oita19
    19°C min night temperature
  • 12 hours of daylight per day in September in Oita12
    12 hours of daylight per day
  • Moderate heat & humidity in September in OitaM
    Moderate heat & humidity
  • 233 mm monthly rainfall in September in Oita233
    233 mm of monthly rainfall
  • UV (maximum) index 9 (Very High) in September in Oita9
    9 (Very High) UV index
  • 27°C sea temperature in September in Oita27
    27°C sea temperature

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The September weather guide for Japan (Oita) 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 Oita in September?

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

How sunny is it in Oita in September?

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

How warm is the sea around Oita in September?

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

Does it rain in Oita in September?

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

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

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

Oita September sunrise & sunset times

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

JanFebMarAprMayJunJulAugSepOctNovDec

Date Sunrise times Sunset times
Tuesday, 1st September 2026 05:48 18:39
Tuesday, 15th September 2026 05:57 18:21
Wednesday, 30th September 2026 06:07 18:00

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