Norfolk Island weather in September 2025

Expect 19°C daytime maximum temperatures in the shade with on average 7 hours of sunshine per day in Norfolk Island in September. Check more long-term weather averages for Norfolk Island in September before you book your next holiday to Norfolk Island in 2025/2026.

  • 19°C maximum daytime temperature in September in Norfolk Island19
    19°C max day temperature
  • 7 hours of sunshine per day
  • 16 days with some rainfall in September in Norfolk Island16
    16 days with some rainfall
  • 14°C minimum night-time temperature in September in Norfolk Island14
    14°C min night temperature
  • 12 hours of daylight per day in September in Norfolk Island12
    12 hours of daylight per day
  • No heat & humidity in September in Norfolk Island0
    No heat & humidity
  • 111 mm monthly rainfall in September in Norfolk Island111
    111 mm of monthly rainfall
  • UV (maximum) index 7 (High) in September in Norfolk Island7
    7 (High) UV index
  • 19°C sea temperature in September in Norfolk Island19
    19°C sea temperature

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The September weather guide for Norfolk 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 Norfolk Island in September?

Daytime temperatures usually reach 19°C in Norfolk Island in September, falling to 14°C at night.

How sunny is it in Norfolk Island in September?

There are normally 7 hours of bright sunshine each day in Norfolk Island in September - that's 60% of daylight hours.

How warm is the sea around Norfolk Island in September?

The average sea temperature around Norfolk Island in September is 19°C.

Does it rain in Norfolk Island in September?

There are usually 16 days with some rain in Norfolk Island in September and the average monthly rainfall is 111mm.

Norfolk Island September sunrise & sunset times

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

JanFebMarAprMayJunJulAugSepOctNovDec

Date Sunrise times Sunset times
Monday, 1st September 2025 06:03 17:34
Monday, 15th September 2025 05:47 17:41
Tuesday, 30th September 2025 05:28 17:48

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