Christchurch weather in September 2025

Expect 14°C daytime maximum temperatures in the shade with on average 5 hours of sunshine per day in Christchurch in September. Check more long-term weather averages for Christchurch in September before you book your next holiday to New Zealand in 2025/2026.

  • 14°C maximum daytime temperature in September in Christchurch14
    14°C max day temperature
  • 5 hours of sunshine per day
  • 9 days with some rainfall in September in Christchurch9
    9 days with some rainfall
  • 5°C minimum night-time temperature in September in Christchurch5
    5°C min night temperature
  • 12 hours of daylight per day in September in Christchurch12
    12 hours of daylight per day
  • No heat & humidity in September in Christchurch0
    No heat & humidity
  • 39 mm monthly rainfall in September in Christchurch39
    39 mm of monthly rainfall
  • UV (maximum) index 3 (Moderate) in September in Christchurch3
    3 (Moderate) UV index
  • 10°C sea temperature in September in Christchurch10
    10°C sea temperature

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The September weather guide for New Zealand (Christchurch) 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 warm is it in Christchurch in September?

Daytime temperatures usually reach 14°C in Christchurch in September, falling to 5°C at night.

How sunny is it in Christchurch in September?

There are normally 5 hours of bright sunshine each day in Christchurch in September - that's 45% of daylight hours.

Is the sea cold around Christchurch in September?

The average sea temperature around Christchurch in September is 10°C.

Does it rain in Christchurch in September?

There are usually 9 days with some rain in Christchurch in September and the average monthly rainfall is 39mm.

Christchurch September sunrise & sunset times

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

JanFebMarAprMayJunJulAugSepOctNovDec

Date Sunrise times Sunset times
Monday, 1st September 2025 06:57 18:03
Monday, 15th September 2025 06:32 18:18
Tuesday, 30th September 2025 06:05 18:35

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