New Plymouth weather in December 2025

Expect 20°C daytime maximum temperatures in the shade with on average 7 hours of sunshine per day in New Plymouth in December. Check more long-term weather averages for New Plymouth in December before you book your next holiday to New Zealand in 2025/2026.

  • 20°C maximum daytime temperature in December in New Plymouth20
    20°C max day temperature
  • 7 hours of sunshine per day
  • 13 days with some rainfall in December in New Plymouth13
    13 days with some rainfall
  • 12°C minimum night-time temperature in December in New Plymouth12
    12°C min night temperature
  • 15 hours of daylight per day in December in New Plymouth15
    15 hours of daylight per day
  • No heat & humidity in December in New Plymouth0
    No heat & humidity
  • 131 mm monthly rainfall in December in New Plymouth131
    131 mm of monthly rainfall
  • UV (maximum) index 11 (Extreme) in December in New Plymouth11
    11 (Extreme) UV index
  • 17°C sea temperature in December in New Plymouth17
    17°C sea temperature

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

Daytime temperatures usually reach 20°C in New Plymouth in December, falling to 12°C at night.

How sunny is it in New Plymouth in December?

There are normally 7 hours of bright sunshine each day in New Plymouth in December - that's 50% of daylight hours.

How warm is the sea around New Plymouth in December?

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

Does it rain in New Plymouth in December?

There are usually 13 days with some rain in New Plymouth in December and the average monthly rainfall is 131mm.

New Plymouth December sunrise & sunset times

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

JanFebMarAprMayJunJulAugSepOctNovDec

Date Sunrise times Sunset times
Monday, 1st December 2025 04:52 19:34
Tuesday, 16th December 2025 04:52 19:46
Wednesday, 31st December 2025 05:00 19:53

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