Christchurch weather in December 2025

Expect daytime maximum temperatures of 21°C in Christchurch in December based on long-term weather averages. There are 7 hours of sunshine per day on average with 11 days with some rainfall and typically 46 mm of rainfall in the month.

  • 21°C maximum daytime temperature in December in Christchurch21
    21°C max day temperature
  • 7 hours of sunshine per day
  • 11 days with some rainfall in December in Christchurch11
    11 days with some rainfall
  • 11°C minimum night-time temperature in December in Christchurch11
    11°C min night temperature
  • 15 hours of daylight per day in December in Christchurch15
    15 hours of daylight per day
  • No heat & humidity in December in Christchurch0
    No heat & humidity
  • 46 mm monthly rainfall in December in Christchurch46
    46 mm of monthly rainfall
  • UV (maximum) index 10 (Very High) in December in Christchurch10
    10 (Very High) UV index
  • 15°C sea temperature in December in Christchurch15
    15°C sea temperature

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The December 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 hot is it in Christchurch in December?

Daytime temperatures usually reach 21°C in Christchurch in December, falling to 11°C at night.

How sunny is it in Christchurch in December?

There are normally 7 hours of bright sunshine each day in Christchurch in December - that's 46% of daylight hours.

How warm is the sea around Christchurch in December?

The average sea temperature around Christchurch in December is 15°C.

Does it rain in Christchurch in December?

There are usually 11 days with some rain in Christchurch in December and the average monthly rainfall is 46mm.

Christchurch December sunrise & sunset times

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

JanFebMarAprMayJunJulAugSepOctNovDec

Date Sunrise times Sunset times
Monday, 1st December 2025 04:44 19:53
Tuesday, 16th December 2025 04:43 20:07
Wednesday, 31st December 2025 04:51 20:13

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