Kwajalein weather in September 2026

Expect daytime maximum temperatures of 31°C in Kwajalein, Marshall Islands in September and very high heat and humidity based on long-term weather averages. There are 18 days with some rainfall and typically 270 mm of rainfall in the month.

  • 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 30°C in Kwajalein in September with high heat and humidity, falling to 25°C at night.

How sunny is it in Kwajalein in September?

There are normally 7 hours of bright sunshine each day in Kwajalein in September - that's 59% of daylight hours.

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 291mm.

Kwajalein September sunrise & sunset times

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

JanFebMarAprMayJunJulAugSepOctNovDec

Date Sunrise times Sunset times
Tuesday, 1st September 2026 06:41 18:58
Tuesday, 15th September 2026 06:39 18:50
Wednesday, 30th September 2026 06:38 18:41

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