Cook Islands weather in June 2025

Expect 26°C daytime maximum temperatures in the shade in Cook Islands in June based on long-term weather averages. There is usually 6 days with some rainfall and 120 mm of average monthly rainfall in June.

  • 26°C maximum daytime temperature in June in Cook Islands (Avarua)26
    26°C max day temperature
  • 6 days with some rainfall in June in Cook Islands (Avarua)6
    6 days with some rainfall
  • 20°C minimum night-time temperature in June in Cook Islands (Avarua)20
    20°C min night temperature
  • 11 hours of daylight per day in June in Cook Islands (Avarua)11
    11 hours of daylight per day
  • Low heat & humidity in June in Cook Islands (Avarua)L
    Low heat & humidity
  • 120 mm monthly rainfall in June in Cook Islands (Avarua)120
    120 mm of monthly rainfall
  • UV (maximum) index 6 (High) in June in Cook Islands (Avarua)6
    6 (High) UV index
  • 25°C sea temperature in June in Cook Islands (Avarua)25
    25°C sea temperature

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The June weather guide for Cook Islands (Avarua) 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 Cook Islands destinations

Below are average maximum temperatures at popular countries, regions and places in the Cook Islands in June. Select a holiday destination to see more weather parameters.

All Cook Islands destinations

Metric (°C / mm)  |  Imperial (°F / inches)

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How hot is it in the Cook Islands in June?

Daytime temperatures usually reach 26°C in Avarua, Cook Islands in June with low heat and humidity, falling to 20°C at night.

How warm is the sea around the Cook Islands in June?

The average sea temperature around Avarua, Cook Islands in June is 25°C.

Does it rain in the Cook Islands in June?

There are usually 6 days with some rain in Avarua, Cook Islands in June and the average monthly rainfall is 120mm.

Cook Islands June sunrise & sunset times

Browse the sunrise and sunset times for Cook Islands in June 2025. Select a month to view Cook Islands sunrise and sunset times for the next 12 months. The Cook Islands sunrise and sunset times shown below are for Avarua.

JanFebMarAprMayJunJulAugSepOctNovDec

Date Sunrise times Sunset times
Sunday, 1st June 2025 07:09 18:05
Sunday, 15th June 2025 07:14 18:05
Monday, 30th June 2025 07:17 18:09

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