Noumea weather in September 2025

Expect 24°C daytime maximum temperatures in the shade with on average 7 hours of sunshine per day in Noumea in September. Check more long-term weather averages for Noumea in September before you book your next holiday to New Caledonia in 2025/2026.

  • 24°C maximum daytime temperature in September in Noumea24
    24°C max day temperature
  • 7 hours of sunshine per day
  • 9 days with some rainfall in September in Noumea9
    9 days with some rainfall
  • 17°C minimum night-time temperature in September in Noumea17
    17°C min night temperature
  • 12 hours of daylight per day in September in Noumea12
    12 hours of daylight per day
  • No heat & humidity in September in Noumea0
    No heat & humidity
  • 40 mm monthly rainfall in September in Noumea40
    40 mm of monthly rainfall
  • UV (maximum) index 9 (Very High) in September in Noumea9
    9 (Very High) UV index
  • 22°C sea temperature in September in Noumea22
    22°C sea temperature

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The September weather guide for New Caledonia (Noumea) 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 Noumea in September?

Daytime temperatures usually reach 24°C in Noumea in September, falling to 17°C at night.

How sunny is it in Noumea in September?

There are normally 7 hours of bright sunshine each day in Noumea in September - that's 61% of daylight hours.

How warm is the sea around Noumea in September?

The average sea temperature around Noumea in September is 22°C.

Does it rain in Noumea in September?

There are usually 9 days with some rain in Noumea in September and the average monthly rainfall is 40mm.

Noumea September sunrise & sunset times

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

JanFebMarAprMayJunJulAugSepOctNovDec

Date Sunrise times Sunset times
Monday, 1st September 2025 06:04 17:44
Monday, 15th September 2025 05:51 17:48
Tuesday, 30th September 2025 05:36 17:53

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