Wellington weather in December 2025

Expect daytime maximum temperatures of 19°C in Wellington, New Zealand in December based on long-term weather averages. There are 7 hours of sunshine per day on average with 12 days with some rainfall and typically 94 mm of rainfall in the month.

  • 19°C maximum daytime temperature in December in Wellington19
    19°C max day temperature
  • 7 hours of sunshine per day
  • 12 days with some rainfall in December in Wellington12
    12 days with some rainfall
  • 12°C minimum night-time temperature in December in Wellington12
    12°C min night temperature
  • 15 hours of daylight per day in December in Wellington15
    15 hours of daylight per day
  • No heat & humidity in December in Wellington0
    No heat & humidity
  • 94 mm monthly rainfall in December in Wellington94
    94 mm of monthly rainfall
  • UV (maximum) index 10 (Very High) in December in Wellington10
    10 (Very High) UV index
  • 15°C sea temperature in December in Wellington15
    15°C sea temperature

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The December weather guide for New Zealand (Wellington) 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 Wellington in December?

Daytime temperatures usually reach 19°C in Wellington in December, falling to 12°C at night.

How sunny is it in Wellington in December?

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

How warm is the sea around Wellington in December?

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

Does it rain in Wellington in December?

There are usually 12 days with some rain in Wellington in December and the average monthly rainfall is 94mm.

Wellington December sunrise & sunset times

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

JanFebMarAprMayJunJulAugSepOctNovDec

Date Sunrise times Sunset times
Monday, 1st December 2025 04:43 19:38
Tuesday, 16th December 2025 04:42 19:51
Wednesday, 31st December 2025 04:50 19:57

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