American Samoa weather in September 2025

Expect 29°C daytime maximum temperatures in the shade with on average 6 hours of sunshine per day in American Samoa in September. Check more long-term weather averages for American Samoa in September before you book your next holiday to American Samoa in 2025/2026.

  • 29°C maximum daytime temperature in September in American Samoa (Pago Pago)29
    29°C max day temperature
  • 6 hours of sunshine per day
  • 5 days with some rainfall in September in American Samoa (Pago Pago)5
    5 days with some rainfall
  • 23°C minimum night-time temperature in September in American Samoa (Pago Pago)23
    23°C min night temperature
  • 12 hours of daylight per day in September in American Samoa (Pago Pago)12
    12 hours of daylight per day
  • High heat & humidity in September in American Samoa (Pago Pago)H
    High heat & humidity
  • 174 mm monthly rainfall in September in American Samoa (Pago Pago)174
    174 mm of monthly rainfall
  • UV (maximum) index 11+ (Extreme) in September in American Samoa (Pago Pago)11
    11+ (Extreme) UV index
  • 28°C sea temperature in September in American Samoa (Pago Pago)28
    28°C sea temperature

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The September weather guide for American Samoa, represented by Pago Pago, (Pago Pago) 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 American Samoa in September?

Daytime temperatures usually reach 29°C in Pago Pago, American Samoa in September with high heat and humidity, falling to 23°C at night.

How sunny is it in American Samoa in September?

There are normally 6 hours of bright sunshine each day in Pago Pago, American Samoa in September - that's 52% of daylight hours.

How warm is the sea around American Samoa in September?

The average sea temperature around Pago Pago, American Samoa in September is 28°C.

Does it rain in American Samoa in September?

There are usually 5 days with some rain in Pago Pago, American Samoa in September and the average monthly rainfall is 174mm.

American Samoa September sunrise & sunset times

Browse the sunrise and sunset times for American Samoa in September 2025. Select a month to view American Samoa sunrise and sunset times for the next 12 months. The American Samoa sunrise and sunset times shown below are for Pago Pago.

JanFebMarAprMayJunJulAugSepOctNovDec

Date Sunrise times Sunset times
Monday, 1st September 2025 06:27 18:18
Monday, 15th September 2025 06:17 18:18
Tuesday, 30th September 2025 06:06 18:19

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