Chatham Island weather in August 2025

Expect 10°C daytime maximum temperatures in the shade with on average 3 hours of sunshine per day in Chatham Island in August. Check more long-term weather averages for Chatham Island in August before you book your next holiday to New Zealand in 2025/2026.

  • 10°C maximum daytime temperature in August in Chatham Island10
    10°C max day temperature
  • 3 hours of sunshine per day
  • 1 day with some rainfall in August in Chatham Island1
    1 day with some rainfall
  • 6°C minimum night-time temperature in August in Chatham Island6
    6°C min night temperature
  • 10 hours of daylight per day in August in Chatham Island10
    10 hours of daylight per day
  • No heat & humidity in August in Chatham Island0
    No heat & humidity
  • 81 mm monthly rainfall in August in Chatham Island81
    81 mm of monthly rainfall
  • UV (maximum) index 2 (Low) in August in Chatham Island2
    2 (Low) UV index
  • 11°C sea temperature in August in Chatham Island11
    11°C sea temperature

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The August weather guide for New Zealand (Chatham Island) 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 warm is it in Chatham Island in August?

Daytime temperatures usually reach 10°C in Chatham Island in August, falling to 6°C at night.

How sunny is it in Chatham Island in August?

There are normally 3 hours of bright sunshine each day in Chatham Island in August - that's 29% of daylight hours.

Is the sea cold around Chatham Island in August?

The average sea temperature around Chatham Island in August is 11°C.

Does it ever rain in Chatham Island in August?

There is usually 1 day with some rain in Chatham Island in August and the average monthly rainfall is 81mm.

Chatham Island August sunrise & sunset times

Browse the sunrise and sunset times for Chatham Island in August 2025. Select a month to view Chatham Island sunrise and sunset times for the next 12 months.

JanFebMarAprMayJunJulAugSepOctNovDec

Date Sunrise times Sunset times
Friday, 1st August 2025 07:46 17:30
Saturday, 16th August 2025 07:25 17:46
Sunday, 31st August 2025 07:01 18:03

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