New Zealand weather in December 2025

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

  • 19°C maximum daytime temperature in December in New Zealand (Wellington)19
    19°C max day temperature
  • 7 hours of sunshine per day
  • 12 days with some rainfall in December in New Zealand (Wellington)12
    12 days with some rainfall
  • 12°C minimum night-time temperature in December in New Zealand (Wellington)12
    12°C min night temperature
  • 15 hours of daylight per day in December in New Zealand (Wellington)15
    15 hours of daylight per day
  • No heat & humidity in December in New Zealand (Wellington)0
    No heat & humidity
  • 94 mm monthly rainfall in December in New Zealand (Wellington)94
    94 mm of monthly rainfall
  • UV (maximum) index 10 (Very High) in December in New Zealand (Wellington)10
    10 (Very High) UV index
  • 15°C sea temperature in December in New Zealand (Wellington)15
    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.

Top New Zealand destinations

Below are average maximum temperatures at popular countries, regions and places in New Zealand in December. Select a holiday destination to see more weather parameters.

All New Zealand destinations

Metric (°C / mm)  |  Imperial (°F / inches)

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How hot is it in New Zealand in December?

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

How sunny is it in New Zealand in December?

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

How warm is the sea around New Zealand in December?

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

Does it rain in New Zealand in December?

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

New Zealand December sunrise & sunset times

Browse the sunrise and sunset times for New Zealand in December 2025. Select a month to view New Zealand sunrise and sunset times for the next 12 months. The New Zealand sunrise and sunset times shown below are for Wellington.

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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