Midway Island weather in September 2025

Expect 28°C daytime maximum temperatures in the shade in Midway Island in September based on long-term weather averages. There is usually 18 days with some rainfall and 117 mm of average monthly rainfall in September.

  • 28°C maximum daytime temperature in September in Midway Island28
    28°C max day temperature
  • 18 days with some rainfall in September in Midway Island18
    18 days with some rainfall
  • 23°C minimum night-time temperature in September in Midway Island23
    23°C min night temperature
  • 12 hours of daylight per day in September in Midway Island12
    12 hours of daylight per day
  • Moderate heat & humidity in September in Midway IslandM
    Moderate heat & humidity
  • 117 mm monthly rainfall in September in Midway Island117
    117 mm of monthly rainfall
  • UV (maximum) index 10 (Very High) in September in Midway Island10
    10 (Very High) UV index
  • 27°C sea temperature in September in Midway Island27
    27°C sea temperature

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The September weather guide for Midway Island 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 Midway Island in September?

Daytime temperatures usually reach 28°C in Midway Island in September with moderate heat and humidity, falling to 23°C at night.

How warm is the sea around Midway Island in September?

The average sea temperature around Midway Island in September is 27°C.

Does it rain in Midway Island in September?

There are usually 18 days with some rain in Midway Island in September and the average monthly rainfall is 117mm.

Midway Island September sunrise & sunset times

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

JanFebMarAprMayJunJulAugSepOctNovDec

Date Sunrise times Sunset times
Monday, 1st September 2025 06:28 19:10
Monday, 15th September 2025 06:35 18:54
Tuesday, 30th September 2025 06:42 18:36

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