New Zealand weather in January 2025

Expect 20°C daytime maximum temperatures in the shade with on average 8 hours of sunshine per day in New Zealand in January. Check more long-term weather averages for New Zealand in January before you book your next holiday to New Zealand in 2025/2026.

  • 20°C maximum daytime temperature in January in New Zealand (Wellington)20
    20°C max day temperature
  • 8 hours of sunshine per day
  • 9 days with some rainfall in January in New Zealand (Wellington)9
    9 days with some rainfall
  • 13°C minimum night-time temperature in January in New Zealand (Wellington)13
    13°C min night temperature
  • 15 hours of daylight per day in January in New Zealand (Wellington)15
    15 hours of daylight per day
  • No heat & humidity in January in New Zealand (Wellington)0
    No heat & humidity
  • 80 mm monthly rainfall in January in New Zealand (Wellington)80
    80 mm of monthly rainfall
  • UV (maximum) index 11 (Extreme) in January in New Zealand (Wellington)11
    11 (Extreme) UV index
  • 16°C sea temperature in January in New Zealand (Wellington)16
    16°C sea temperature

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The January 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 and places in New Zealand in January. 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 January?

Daytime temperatures usually reach 20°C in Wellington, New Zealand in January, falling to 13°C at night.

How sunny is it in New Zealand in January?

There are normally 8 hours of bright sunshine each day in Wellington, New Zealand in January - that's 51% of daylight hours.

How warm is the sea around New Zealand in January?

The average sea temperature around Wellington, New Zealand in January is 16°C.

Does it rain in New Zealand in January?

There are usually 9 days with some rain in Wellington, New Zealand in January and the average monthly rainfall is 80mm.

New Zealand January sunrise & sunset times

Browse the sunrise and sunset times for New Zealand in January 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
Wednesday, 1st January 2025 05:51 20:57
Thursday, 16th January 2025 06:07 20:54
Friday, 31st January 2025 06:25 20:43

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