Chatham Island weather in September 2026

Expect daytime maximum temperatures of 52°F in Chatham Island, New Zealand in September based on long-term weather averages. There are 4 hours of sunshine per day on average with typically 2.8 inches of rainfall in the month.

  • 52°F maximum daytime temperature in September in Chatham Island52
    52°F max day temperature
  • 4 hours of sunshine per day
  • 3 days with some rainfall in September in Chatham Island3
    3 days with some rainfall
  • 43°F minimum night-time temperature in September in Chatham Island43
    43°F min night temperature
  • 12 hours of daylight per day in September in Chatham Island12
    12 hours of daylight per day
  • No heat & humidity in September in Chatham Island0
    No heat & humidity
  • 2.8 inches monthly rainfall in September in Chatham Island2.8
    2.8 inches of monthly rainfall
  • UV (maximum) index 3 (Moderate) in September in Chatham Island3
    3 (Moderate) UV index
  • 52°F sea temperature in September in Chatham Island52
    52°F sea temperature

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The September weather guide for New Zealand (Chatham 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)  |  Imperial (°F)

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How warm is it in Chatham Island in September?

Daytime temperatures usually reach 55°F in Chatham Island in September, falling to 45°F at night.

How sunny is it in Chatham Island in September?

There are normally 5 hours of bright sunshine each day in Chatham Island in September - that's 42% of daylight hours.

How warm is the sea around Chatham Island in September?

The average sea temperature around Chatham Island in September is 54°F.

Does it rain in Chatham Island in September?

There are usually 15 days with some rain in Chatham Island in September and the average monthly rainfall is 4.1 inches.

Chatham Island September sunrise & sunset times

Browse the sunrise and sunset times for Chatham Island in September 2026. Select a month to view Chatham Island sunrise and sunset times for the next 12 months.

JanFebMarAprMayJunJulAugSepOctNovDec

Date Sunrise times Sunset times
Tuesday, 1st September 2026 07:00 18:04
Tuesday, 15th September 2026 06:34 18:20
Wednesday, 30th September 2026 06:07 18:37

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