Nelson weather in December 2025

Expect daytime maximum temperatures of 20°C in Nelson, New Zealand in December based on long-term weather averages. There are 8 hours of sunshine per day on average with 11 days with some rainfall and typically 104 mm of rainfall in the month.

  • 20°C maximum daytime temperature in December in Nelson20
    20°C max day temperature
  • 8 hours of sunshine per day
  • 11 days with some rainfall in December in Nelson11
    11 days with some rainfall
  • 11°C minimum night-time temperature in December in Nelson11
    11°C min night temperature
  • 15 hours of daylight per day in December in Nelson15
    15 hours of daylight per day
  • No heat & humidity in December in Nelson0
    No heat & humidity
  • 104 mm monthly rainfall in December in Nelson104
    104 mm of monthly rainfall
  • UV (maximum) index 10 (Very High) in December in Nelson10
    10 (Very High) UV index
  • 17°C sea temperature in December in Nelson17
    17°C sea temperature

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

Daytime temperatures usually reach 20°C in Nelson in December, falling to 11°C at night.

How sunny is it in Nelson in December?

There are normally 8 hours of bright sunshine each day in Nelson in December - that's 50% of daylight hours.

How warm is the sea around Nelson in December?

The average sea temperature around Nelson in December is 17°C.

Does it rain in Nelson in December?

There are usually 11 days with some rain in Nelson in December and the average monthly rainfall is 104mm.

Nelson December sunrise & sunset times

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

JanFebMarAprMayJunJulAugSepOctNovDec

Date Sunrise times Sunset times
Monday, 1st December 2025 04:49 19:43
Tuesday, 16th December 2025 04:48 19:57
Wednesday, 31st December 2025 04:56 20:03

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