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Normal weather for Cook Islands in May

It's warm in May in Cook Islands with an average temperature of 28°C. Temperatures this month range from a low of 27°C to a high of 28°C. At night, you can expect temperatures between 21°C and 24°C.

In May, there is an average of 152 mm of precipitation, spread over 17 days. The wind speed is around 4 Bft, mostly coming from the Southeast.

Cook Islands in May

New York
Temperature Average Temperature
28°C 22°C
Sun High Temp
28°C 28°C
Sun Low Temp
27°C 17°C
Rain Total Precipitation
152 mm 105 mm
Rain Rainy Days
17 days 14 days

Start of May

The month of May starts in Cook Islands with hot temps, averaging around 28°C during the day and nights around 24°C. You can expect regular precipitation, but there will also be some sunny days in the early part of the month.

With the temperature difference between day and night, it’s smart to wear layers. For the daytime, light clothing like shorts or a dress, and a hat and sunglasses are perfect. In the evening and morning, a T-shirt, light pants or skirt, and a light jacket are ideal.

Mid May

By mid-May, daytime temps stay steady at around 28°C, with nights around 23°C. During this part of the month, you might see regular precipitation, but there will also be some sunny days.

Since it cools down at night, it’s a good idea to wear layers. For the daytime, light clothing like shorts or a dress, and a hat and sunglasses are perfect. In the evening and morning, a T-shirt, light pants or skirt, and a light jacket are ideal.

End of May

By the end of May, the average daytime temperature in Cook Islands is around 28°C, while nighttime temps are about 23°C. Expect regular precipitation, but if you’re lucky, you’ll also get some dry and sunny days.

Because temperatures drop in the evening, wearing layers is recommended. For the daytime, light clothing like shorts or a dress, and a hat and sunglasses are perfect. In the evening and morning, a T-shirt, light pants or skirt, and a light jacket are ideal.

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UV index

The UV index is a maximum of 7 this month. That's a moderate to high value on the intensity scale of 1 to 11. Unprotected skin can burn within 15-25 minutes.

Is May a good time to visit Cook Islands?

Looking for sun? May isn’t a good month to be in Cook Islands. The temperature is nice, but there’s too much chance of rain.

Temperature records for Cook Islands in May

Check out the climate of Cook Islands for all months and discover the best travel time

The climate in Cook Islands is based on weather data from Avarua. Other spots might have different weather. You can check out all destinations in Cook Islands to get the full picture of the climate.

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Daily Temperature in May in Cook Islands

This chart shows the average daily high and low temperatures in May for Cook Islands, in degrees Celsius. The red line represents the highs, and the blue line shows the lows. The days of the month are displayed at the bottom of the chart. The data, based on historical observations, provide the average temperatures for this month.

Daily Temperature in May in Cook Islands

Daily Precipitation in May in Cook Islands

The chart below shows the average daily precipitation in May for Cook Islands, measured in millimeters over the past few years. Precipitation is always measured as water, even if it’s snow or hail. The days of the month are listed at the bottom of the chart.

A low average precipitation means that the chance of rain on that day is usually small, while a higher average suggests that it rained more often. But remember, it’s just an average, and every day can be different. Based on historical weather data for May, you can expect about 17 days of precipitation in Cook Islands.

Daily Precipitation in May in Cook Islands

Daily UV Index in May in Cook Islands

This chart shows the average daily UV index in May in Cook Islands, with the UV index ranging from 0 to a maximum of 11. The bottom of the chart shows the days of the month. Based on historical data, this chart provides an idea of the daily UV radiation levels you can expect.

Daily UV Index in May in Cook Islands

Temperature in May in Cook Islands Over the Years

This chart shows the average temperature in May in Cook Islands, measured in degrees Celsius, over the past few years.

Temperature in May in Cook Islands Over the Years

Total Precipitation in May in Cook Islands Over the Years

This chart shows the average precipitation in May in Cook Islands, measured in millimeters over the past years. Precipitation is always measured as water, whether it’s snow or hail.

Precipitation in May in Cook Islands Over the Years

Daily Climate in May for Cook Islands

Click on any day in May to get detailed info about the usual weather on that day in Cook Islands. Check out the historical temperatures and precipitation over the past 10 years on this day.

Weather experiences in May in Cook Islands

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Average Weather in Cook Islands by Month

Click on a month below to see detailed weather info for Cook Islands. Based on historical weather data, you can see the average temperature, precipitation, wind, and UV index for each day of the month.


Or check out the climate of Cook Islands for all months at once

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