Cook Islands weather live forecast

Today's maximum temperature in the Cook Islands is expected to be 25°C. Select a day from the live weather forecast for the Cook Islands (Avarua) for more weather parameters.

Tuesday
19th May
25

23

0

UV1
Wednesday
20th May
27

24

3

UV6
Thursday
21st May
27

25

3

UV6
Friday
22nd May
27

24

4

UV6
Saturday
23rd May
27

24

6

UV7

5-day weather forecast updated at 04:00 on Tuesday 19th May 2026 GMT

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The 5-day weather forecast for Cook Islands (Avarua) is provided by the Swiss meteorological agency, meteoblue. Find out more about our data sources.

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Below are temperatures expected today at popular countries, regions and places in the Cook Islands. Select a destination to see the detailed weather forecast for today, tomorrow and the outlook for the next five days.

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Cook Islands weather forecast by day

Below are the detailed weather forecasts for the Cook Islands for the next 5 days. The forecasts shown are for Avarua and may not represent the whole of the Cook Islands. Browse more destinations in Cook Islands to view more weather forecasts.

Cook Islands weather for Tuesday 19th May 2026

Expect isolated thunderstorms in Cook Islands with a maximum temperature of 25°C, maximum UV of 1 (Low) and no hours of bright sunshine. There are 30-40 mm of rainfall expected with 98% chance of some rain and a moderate breeze of 26 kph from the east.

25
°C maximum temperature
23
°C minimum temperature
isolated thunderstorms
0
hours of sunshine
UV1
UV index (Low)
98
% chance of some rain
<40
mm of rainfall expected
0
no heat & humidity
26
kph wind from E

Cook Islands weather for Wednesday 20th May 2026

Expect isolated thunderstorms in Cook Islands with a maximum temperature of 27°C, low levels of heat & humidity, maximum UV of 6 (High) and 3 hours of bright sunshine. There are 10-20 mm of rainfall expected with 62% chance of some rain and a moderate breeze of 21 kph from the north-west.

27
°C maximum temperature
24
°C minimum temperature
isolated thunderstorms
3
hours of sunshine
UV6
UV index (High)
62
% chance of some rain
<20
mm of rainfall expected
L
low heat & humidity
21
kph wind from NW

Cook Islands weather for Thursday 21st May 2026

Expect isolated thunderstorms in Cook Islands with a maximum temperature of 27°C, low levels of heat & humidity, maximum UV of 6 (High) and 3 hours of bright sunshine. There are 5-10 mm of rainfall expected with 52% chance of some rain and a gentle breeze of 14 kph from the north-west.

27
°C maximum temperature
25
°C minimum temperature
isolated thunderstorms
3
hours of sunshine
UV6
UV index (High)
52
% chance of some rain
<10
mm of rainfall expected
L
low heat & humidity
14
kph wind from NW

Cook Islands weather for Friday 22nd May 2026

Expect isolated thunderstorms in Cook Islands with a maximum temperature of 27°C, low levels of heat & humidity, maximum UV of 6 (High) and 4 hours of bright sunshine. There are 0-2 mm of rainfall expected with 33% chance of some rain and a gentle breeze of 18 kph from the north-west.

27
°C maximum temperature
24
°C minimum temperature
isolated thunderstorms
4
hours of sunshine
UV6
UV index (High)
33
% chance of some rain
<2
mm of rainfall expected
L
low heat & humidity
18
kph wind from NW

Cook Islands weather for Saturday 23rd May 2026

Expect broken clouds in Cook Islands with a maximum temperature of 27°C, low levels of heat & humidity, maximum UV of 7 (High) and 6 hours of bright sunshine. There are 0 mm of rainfall expected and a gentle breeze of 18 kph from the west.