Kwajalein weather in September 2025

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

  • 31°C maximum daytime temperature in September in Kwajalein31
    31°C max day temperature
  • 18 days with some rainfall in September in Kwajalein18
    18 days with some rainfall
  • 25°C minimum night-time temperature in September in Kwajalein25
    25°C min night temperature
  • 12 hours of daylight per day in September in Kwajalein12
    12 hours of daylight per day
  • Very high heat & humidity in September in KwajaleinVH
    Very High heat & humidity
  • 270 mm monthly rainfall in September in Kwajalein270
    270 mm of monthly rainfall
  • UV (maximum) index 11+ (Extreme) in September in Kwajalein11
    11+ (Extreme) UV index
  • 29°C sea temperature in September in Kwajalein29
    29°C sea temperature

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The September weather guide for Marshall Islands (Kwajalein) 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 Kwajalein in September?

Daytime temperatures usually reach 31°C in Kwajalein in September with very high heat and humidity, falling to 25°C at night.

How warm is the sea around Kwajalein in September?

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

Does it rain in Kwajalein in September?

There are usually 18 days with some rain in Kwajalein in September and the average monthly rainfall is 270mm.

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

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

Kwajalein September sunrise & sunset times

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

JanFebMarAprMayJunJulAugSepOctNovDec

Date Sunrise times Sunset times
Monday, 1st September 2025 06:41 18:58
Monday, 15th September 2025 06:39 18:49
Tuesday, 30th September 2025 06:38 18:41

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