Chuuk weather in September 2025

Expect daytime maximum temperatures of 31°C in Chuuk in September and very high heat and humidity based on long-term weather averages. There are 5 hours of sunshine per day on average with 20 days with some rainfall and typically 345 mm of rainfall in the month.

  • 31°C maximum daytime temperature in September in Chuuk31
    31°C max day temperature
  • 5 hours of sunshine per day
  • 20 days with some rainfall in September in Chuuk20
    20 days with some rainfall
  • 24°C minimum night-time temperature in September in Chuuk24
    24°C min night temperature
  • 12 hours of daylight per day in September in Chuuk12
    12 hours of daylight per day
  • Very high heat & humidity in September in ChuukVH
    Very High heat & humidity
  • 345 mm monthly rainfall in September in Chuuk345
    345 mm of monthly rainfall
  • UV (maximum) index 11+ (Extreme) in September in Chuuk11
    11+ (Extreme) UV index
  • 29°C sea temperature in September in Chuuk29
    29°C sea temperature

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The September weather guide for Federated States of Micronesia (Chuuk) 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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How hot is it in Chuuk in September?

Daytime temperatures usually reach 31°C in Chuuk in September with very high heat and humidity, falling to 24°C at night.

How sunny is it in Chuuk in September?

There are normally 5 hours of bright sunshine each day in Chuuk in September - that's 44% of daylight hours.

How warm is the sea around Chuuk in September?

The average sea temperature around Chuuk in September is 29°C.

Does it rain in Chuuk in September?

There are usually 20 days with some rain in Chuuk in September and the average monthly rainfall is 345mm.

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

On average less than 1 day in September in Chuuk is likely to be affected by the passage of one or more tropical storms.

Chuuk September sunrise & sunset times

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

JanFebMarAprMayJunJulAugSepOctNovDec

Date Sunrise times Sunset times
Monday, 1st September 2025 05:45 18:00
Monday, 15th September 2025 05:43 17:53
Tuesday, 30th September 2025 05:41 17:44

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