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Australia and Oceania

Cook Islands weather in May 2026

Australia and Oceania

Cook Islands weather in May 2026

 

Day

27 °C

 

Night

22 °C

 

Sea

27 °C

 

Precipitation

133 mm

in month

 

Rainy days

8 days

in month

 

Daylight

11 hours

average

 

Day

27 °C

 

Night

22 °C

 

Sea

27 °C

 

Precipitation

133 mm

in month

 

Rainy days

8 days

in month

 

Daylight

11 hours

average

Overview: Cook Islands
In May in Cook Islands, the average air temperature ranges from 27 °C (81 °F) during the day to 22 °C (72 °F) at night. There are 8 days of rain on average, where the rainfall is 133 mm (5.24 in).

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Beach with turquise sea in Aitutaki with nice weather and blue sky
Nice beach by the sea with turquise water in Aitutaki on a clear sky day
Nice beach and port in Aitutaki in partly cloudy weather

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Weather overview and FAQs

Weather overview

In May in Cook Islands, the average air temperature ranges from 27 °C (81 °F) during the day to 22 °C (72 °F) at night. There are 8 days of rain on average, where the rainfall is 133 mm (5.24 in).

Are there good conditions to visit in May in Cook Islands?

In May in Cook Islands, there are ideal conditions for a vacation. The daily temperatures in this month reach pleasant 27 °C (81 °F). The seawater temperature reaches ideal 27 °C (80 °F). At night, temperatures hover around a pleasant 22 °C (72 °F). There are only 8 days of rain in the whole month, so you can leave your umbrella at home.

What is the sea temperature in May in Cook Islands?

In May in Cook Islands expect the sea to be warm at 27 °C (80 °F). Seems like an ideal temperature for swimming, you can stay in the sea for a long time and enjoy it as well.

What temperature can I expect during the day in May in Cook Islands?

In May in Cook Islands, the average daily temperatures will be 27 °C (81 °F). The ideal temperature for enjoying sunbathing by the water and a good temperature for other activities. For some people, it will be too hot in the direct sunlight and the stay may not be so pleasant. Don't forget to pack flip-flops, sunscreen, and a hand fan if necessary - it may come in handy.

What is the average number of rainy days in Cook Islands in May?

There are 8 days, which are rainy in Cook Islands in May, that is, days with precipitation more than 2 mm (0.08 in). Converted to days of the week, this means that it will occur on an average of 2.0 days of the week, or in general - 28 % days.

What is the rainfall intensity in May in Cook Islands?

There is precipitation of 133 mm (5.24 in) in May in Cook Islands, which means 4 mm (0.17 in) rainfall per day on average.

What is the night temperature in Cook Islands in May?

The average night temperature in Cook Islands in May is 22 °C (72 °F). A very pleasant temperature for long evening walks, fun over a drink outside, or doing sports in the morning. If possible, look for a hotel with air conditioning.

Is Cook Islands rainier in May than in June?

Yes, Cook Islands is a rainier May than in June.

Is the sea in Cook Islands warmer in May than in April?

No, the sea is not warmer in May in Cook Islands than in April.

How does the sea temperature evolve during the month in Cook Islands in May?

Cook Islands has a decreasing trend of the sea temperature during May - from 27 °C (81 °F) in the first days of the month to 26 °C (79 °F) in the last days of the month.

How long is the day (from dawn till dusk) in Cook Islands in May?

The length of daylight in Cook Islands in May is 11 hours.

How windy is it in Cook Islands in May?

In Cook Islands in May, there will be an average wind scale of 5.

Is it hot in Cook Islands in May?

In May in Cook Islands, you will enjoy nice warm weather, but it will also be pleasant and you probably won't feel hot.

Is the weather in Cook Islands warmer in May than in June?

Yes, May in Cook Islands is warmer than June by 1 °C (34 °F).

What is the temperature trend in Cook Islands in May?

During May in Cook Islands, the day temperatures are decreasing - from 28 °C (83 °F) at the beginning of the month to 27 °C (80 °F) at the end of the month.

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