Manihiki weather in August 2025

Expect 30°C daytime maximum temperatures in the shade with on average -9999 hours of sunshine per day in Manihiki in August. Check more long-term weather averages for Manihiki in August before you book your next holiday to Cook Islands in 2025/2026.

  • 30°C maximum daytime temperature in August in Manihiki30
    30°C max day temperature
  • 4 days with some rainfall in August in Manihiki4
    4 days with some rainfall
  • 24°C minimum night-time temperature in August in Manihiki24
    24°C min night temperature
  • 12 hours of daylight per day in August in Manihiki12
    12 hours of daylight per day
  • High heat & humidity in August in ManihikiH
    High heat & humidity
  • 155 mm monthly rainfall in August in Manihiki155
    155 mm of monthly rainfall
  • UV (maximum) index 11 (Extreme) in August in Manihiki11
    11 (Extreme) UV index
  • 28°C sea temperature in August in Manihiki28
    28°C sea temperature

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The August weather guide for Cook Islands (Manihiki) 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 Manihiki in August?

Daytime temperatures usually reach 30°C in Manihiki in August with high heat and humidity, falling to 24°C at night.

How warm is the sea around Manihiki in August?

The average sea temperature around Manihiki in August is 28°C.

Does it rain in Manihiki in August?

There are usually 4 days with some rain in Manihiki in August and the average monthly rainfall is 155mm.

Manihiki August sunrise & sunset times

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

JanFebMarAprMayJunJulAugSepOctNovDec

Date Sunrise times Sunset times
Friday, 1st August 2025 07:00 18:41
Saturday, 16th August 2025 06:55 18:42
Sunday, 31st August 2025 06:47 18:41

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