Kosrae weather in September 2025

Expect 31°C daytime maximum temperatures in the shade with on average -9999 hours of sunshine per day in Kosrae in September. Check more long-term weather averages for Kosrae in September before you book your next holiday to Federated States of Micronesia in 2025/2026.

  • 31°C maximum daytime temperature in September in Kosrae31
    31°C max day temperature
  • 19 days with some rainfall in September in Kosrae19
    19 days with some rainfall
  • 24°C minimum night-time temperature in September in Kosrae24
    24°C min night temperature
  • 12 hours of daylight per day in September in Kosrae12
    12 hours of daylight per day
  • High heat & humidity in September in KosraeH
    High heat & humidity
  • 288 mm monthly rainfall in September in Kosrae288
    288 mm of monthly rainfall
  • UV (maximum) index 11+ (Extreme) in September in Kosrae11
    11+ (Extreme) UV index
  • 29°C sea temperature in September in Kosrae29
    29°C sea temperature

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The September weather guide for Federated States of Micronesia (Kosrae) 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 Kosrae in September?

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

How warm is the sea around Kosrae in September?

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

Does it rain in Kosrae in September?

There are usually 19 days with some rain in Kosrae in September and the average monthly rainfall is 288mm.

Kosrae September sunrise & sunset times

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

JanFebMarAprMayJunJulAugSepOctNovDec

Date Sunrise times Sunset times
Monday, 1st September 2025 06:02 18:14
Monday, 15th September 2025 05:59 18:08
Tuesday, 30th September 2025 05:56 18:00

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