Best time to swim in Cook islands Sea temperature by month

Do you want to go to the seaside in Cook islands? But when should you go to be sure to enjoy good sea water temperature and be able to swim for a long time? Now or another month during the year? On this page, find the sea temperature by month in Cook islands.

Swimming in Cook islands by month

Discover swimming conditions in detail in Cook islands by month below. Click on the links for each month to see details about the sea temperature in the cities of: Avarua and Rarotonga island.

Month Sea temperature
January 82°F
February 82°F to 83°F
March 82°F to 83°F
April 82°F
May 79°F
June 77°F to 77°F
July 77°F to 77°F
August 76°F to 77°F
September 76°F to 77°F
October 78°F to 78°F
November 79°F
December 81°F to 81°F

Where and when should you swim in Cook islands?

Avarua

Best time to swim in Avarua

It is possible to swim all year in Avarua.

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Rarotonga island

Best time to swim in Rarotonga island

It is possible to swim all year in Rarotonga island.

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Water temperatures in Cook islands over the entire year

On this chart, we show you the variation of the average sea water temperature in Cook islands for the cities of: Avarua and Rarotonga island.

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