Apia weather in September 2025

Expect 84°F daytime maximum temperatures in the shade with on average 8 hours of sunshine per day in Apia in September. Check more long-term weather averages for Apia in September before you book your next holiday to Samoa in 2025/2026.

  • 84°F maximum daytime temperature in September in Apia84
    84°F max day temperature
  • 8 hours of sunshine per day
  • 5 days with some rainfall in September in Apia5
    5 days with some rainfall
  • 73°F minimum night-time temperature in September in Apia73
    73°F min night temperature
  • 12 hours of daylight per day in September in Apia12
    12 hours of daylight per day
  • High heat & humidity in September in ApiaH
    High heat & humidity
  • 7.1 inches monthly rainfall in September in Apia7.1
    7.1 inches of monthly rainfall
  • UV (maximum) index 11+ (Extreme) in September in Apia11
    11+ (Extreme) UV index
  • 82°F sea temperature in September in Apia82
    82°F sea temperature

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The September weather guide for Samoa (Apia) 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)  |  Imperial (°F)

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How hot is it in Apia in September?

Daytime temperatures usually reach 84°F in Apia in September with high heat and humidity, falling to 73°F at night.

How sunny is it in Apia in September?

There are normally 8 hours of bright sunshine each day in Apia in September - that's 67% of daylight hours.

How warm is the sea around Apia in September?

The average sea temperature around Apia in September is 82°F.

Does it rain in Apia in September?

There are usually 5 days with some rain in Apia in September and the average monthly rainfall is 7.1 inches.

Apia September sunrise & sunset times

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

JanFebMarAprMayJunJulAugSepOctNovDec

Date Sunrise times Sunset times
Monday, 1st September 2025 06:32 18:22
Monday, 15th September 2025 06:22 18:23
Tuesday, 30th September 2025 06:11 18:23

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