Penrhyn weather in August 2025

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

  • 30°C maximum daytime temperature in August in Penrhyn30
    30°C max day temperature
  • 5 days with some rainfall in August in Penrhyn5
    5 days with some rainfall
  • 24°C minimum night-time temperature in August in Penrhyn24
    24°C min night temperature
  • 12 hours of daylight per day in August in Penrhyn12
    12 hours of daylight per day
  • High heat & humidity in August in PenrhynH
    High heat & humidity
  • 161 mm monthly rainfall in August in Penrhyn161
    161 mm of monthly rainfall
  • UV (maximum) index 11 (Extreme) in August in Penrhyn11
    11 (Extreme) UV index
  • 28°C sea temperature in August in Penrhyn28
    28°C sea temperature

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

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

How warm is the sea around Penrhyn in August?

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

Does it rain in Penrhyn in August?

There are usually 5 days with some rain in Penrhyn in August and the average monthly rainfall is 161mm.

Penrhyn August sunrise & sunset times

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

JanFebMarAprMayJunJulAugSepOctNovDec

Date Sunrise times Sunset times
Friday, 1st August 2025 06:47 18:30
Saturday, 16th August 2025 06:42 18:31
Sunday, 31st August 2025 06:34 18:30

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