Penrhyn weather in May 2025

Expect 31°C daytime maximum temperatures in the shade with on average -9999 hours of sunshine per day in Penrhyn in May. Check more long-term weather averages for Penrhyn in May before you book your next holiday to Cook Islands in 2025/2026.

  • 31°C maximum daytime temperature in May in Penrhyn31
    31°C max day temperature
  • 9 days with some rainfall in May in Penrhyn9
    9 days with some rainfall
  • 25°C minimum night-time temperature in May in Penrhyn25
    25°C min night temperature
  • 12 hours of daylight per day in May in Penrhyn12
    12 hours of daylight per day
  • Very high heat & humidity in May in PenrhynVH
    Very High heat & humidity
  • 152 mm monthly rainfall in May in Penrhyn152
    152 mm of monthly rainfall
  • UV (maximum) index 11 (Extreme) in May in Penrhyn11
    11 (Extreme) UV index
  • 29°C sea temperature in May in Penrhyn29
    29°C sea temperature

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The May 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 May?

Daytime temperatures usually reach 31°C in Penrhyn in May with very high heat and humidity, falling to 25°C at night.

How warm is the sea around Penrhyn in May?

The average sea temperature around Penrhyn in May is 29°C.

Does it rain in Penrhyn in May?

There are usually 9 days with some rain in Penrhyn in May and the average monthly rainfall is 152mm.

Penrhyn May sunrise & sunset times

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

JanFebMarAprMayJunJulAugSepOctNovDec

Date Sunrise times Sunset times
Thursday, 1st May 2025 06:36 18:23
Friday, 16th May 2025 06:38 18:19
Saturday, 31st May 2025 06:41 18:19

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