Cook Islands weather live forecast

Today's maximum temperature in the Cook Islands is expected to be 26°C. Select a day from the live weather forecast for the Cook Islands (Avarua) for more weather parameters.

Monday
17th Aug
26

22

1

8
Tuesday
18th Aug
24

19

0

7
Wednesday
19th Aug
23

19

3

8
Thursday
20th Aug
22

18

5

6
Friday
21st Aug
22

18

4

5

5-day weather forecast updated at 04:01 on Monday 17th August 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 Monday 17th August 2026

Expect mostly cloudy with light rain in Cook Islands with a maximum temperature of 26°C, low levels of heat & humidity, maximum UV of 8 (Very High) and 1 hour of bright sunshine. There are 0-2 mm of rainfall expected with 35% chance of some rain and a gentle breeze of 19 kph from the north.

26
°C maximum temperature
22
°C minimum temperature
mostly cloudy with light rain
1
hour of sunshine
8
UV index (Very High)
35
% chance of some rain
<2
mm of rainfall expected
L
low heat & humidity
19
kph wind from N

Cook Islands weather for Tuesday 18th August 2026

Expect mostly cloudy with light rain in Cook Islands with a maximum temperature of 24°C, maximum UV of 7 (High) and no hours of bright sunshine. There are 0-2 mm of rainfall expected with 27% chance of some rain and a gentle breeze of 14 kph from the south-west.

24
°C maximum temperature
19
°C minimum temperature
mostly cloudy with light rain
0
hours of sunshine
7
UV index (High)
27
% chance of some rain
<2
mm of rainfall expected
0
no heat & humidity
14
kph wind from SW

Cook Islands weather for Wednesday 19th August 2026

Expect broken clouds in Cook Islands with a maximum temperature of 23°C, maximum UV of 8 (Very High) and 3 hours of bright sunshine. There are 0 mm of rainfall expected and a gentle breeze of 16 kph from the south-west.

23
°C maximum temperature
19
°C minimum temperature
broken clouds
3
hours of sunshine
8
UV index (Very High)
0
mm of rainfall expected
0
no heat & humidity
16
kph wind from SW

Cook Islands weather for Thursday 20th August 2026

Expect broken clouds in Cook Islands with a maximum temperature of 22°C, maximum UV of 6 (High) and 5 hours of bright sunshine. There are 0 mm of rainfall expected and a gentle breeze of 16 kph from the south.

22
°C maximum temperature
18
°C minimum temperature
broken clouds
5
hours of sunshine
6
UV index (High)
0
mm of rainfall expected
0
no heat & humidity
16
kph wind from S

Cook Islands weather for Friday 21st August 2026

Expect broken clouds in Cook Islands with a maximum temperature of 22°C, maximum UV of 5 (Moderate) and 4 hours of bright sunshine. There are 0 mm of rainfall expected and a gentle breeze of 16 kph from the south-east.