Naha weather in September 2025

Expect 30°C daytime maximum temperatures in the shade with on average 7 hours of sunshine per day in Naha in September. Check more long-term weather averages for Naha in September before you book your next holiday to Japan in 2025/2026.

  • 30°C maximum daytime temperature in September in Naha30
    30°C max day temperature
  • 7 hours of sunshine per day
  • 20 days with some rainfall in September in Naha20
    20 days with some rainfall
  • 25°C minimum night-time temperature in September in Naha25
    25°C min night temperature
  • 12 hours of daylight per day in September in Naha12
    12 hours of daylight per day
  • High heat & humidity in September in NahaH
    High heat & humidity
  • 168 mm monthly rainfall in September in Naha168
    168 mm of monthly rainfall
  • UV (maximum) index 10 (Very High) in September in Naha10
    10 (Very High) UV index
  • 28°C sea temperature in September in Naha28
    28°C sea temperature

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

Daytime temperatures usually reach 30°C in Naha in September with high heat and humidity, falling to 25°C at night.

How sunny is it in Naha in September?

There are normally 7 hours of bright sunshine each day in Naha in September - that's 55% of daylight hours.

How warm is the sea around Naha in September?

The average sea temperature around Naha in September is 28°C.

Does it rain in Naha in September?

There are usually 20 days with some rain in Naha in September and the average monthly rainfall is 168mm.

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

On average 2.4 days in September in Naha are likely to be affected by the passage of one or more tropical storms.

Naha September sunrise & sunset times

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

JanFebMarAprMayJunJulAugSepOctNovDec

Date Sunrise times Sunset times
Monday, 1st September 2025 06:09 18:49
Monday, 15th September 2025 06:15 18:34
Tuesday, 30th September 2025 06:21 18:17

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