Cook Islands weather live forecast

Today's maximum temperature in the Cook Islands is expected to be 75°F. Select a day from the live weather forecast for the Cook Islands (Avarua) for more weather parameters.

Wednesday
17th Sep
75

64

0

7
Thursday
18th Sep
79

63

0

2
Friday
19th Sep
81

70

4

10
Saturday
20th Sep
79

70

5

10
Sunday
21st Sep
77

68

6

10

5-day weather forecast updated at 04:01 on Thursday 18th September 2025 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.

Top Cook Islands destinations

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 Wednesday 17th September 2025

Expect mostly cloudy with rain in Cook Islands with a maximum temperature of 75°F, maximum UV of 7 (High) and no hours of bright sunshine. There are 10-20 mm of rainfall expected with 99% chance of some rain and a fresh breeze of 22 mph from the south-east.

75
°F maximum temperature
64
°F minimum temperature
mostly cloudy with rain
0
hours of sunshine
7
UV index (High)
99
% chance of some rain
<20
mm of rainfall expected
75
°F wind chill
22
mph wind from SE

Cook Islands weather for Thursday 18th September 2025

Expect cloudy with some rain in Cook Islands with a maximum temperature of 79°F, low levels of heat & humidity, maximum UV of 2 (Low) and no hours of bright sunshine. There are 50 mm or more of rainfall expected with 99% chance of some rain and a fresh breeze of 23 mph from the south-east.

79
°F maximum temperature
63
°F minimum temperature
cloudy with some rain
0
hours of sunshine
2
UV index (Low)
99
% chance of some rain
>50
mm or more of rainfall expected
L
low heat & humidity
23
mph wind from SE

Cook Islands weather for Friday 19th September 2025

Expect isolated thunderstorms in Cook Islands with a maximum temperature of 81°F, low levels of heat & humidity, maximum UV of 10 (Very High) and 4 hours of bright sunshine. There are 20-30 mm of rainfall expected with 64% chance of some rain and a moderate breeze of 14 mph from the west.

81
°F maximum temperature
70
°F minimum temperature
isolated thunderstorms
4
hours of sunshine
10
UV index (Very High)
64
% chance of some rain
<30
mm of rainfall expected
L
low heat & humidity
14
mph wind from W

Cook Islands weather for Saturday 20th September 2025

Expect isolated thunderstorms in Cook Islands with a maximum temperature of 79°F, low levels of heat & humidity, maximum UV of 10 (Very High) and 5 hours of bright sunshine. There are 0-2 mm of rainfall expected with 26% chance of some rain and a light breeze of 7 mph from the south-west.

79
°F maximum temperature
70
°F minimum temperature
isolated thunderstorms
5
hours of sunshine
10
UV index (Very High)
26
% chance of some rain
<2
mm of rainfall expected
L
low heat & humidity
7
mph wind from SW

Cook Islands weather for Sunday 21st September 2025

Expect isolated thunderstorms in Cook Islands with a maximum temperature of 77°F, maximum UV of 10 (Very High) and 6 hours of bright sunshine. There are 0-2 mm of rainfall expected with 17% chance of some rain and a gentle breeze of 9 mph from the south.

77
°F maximum temperature
68
°F minimum temperature
isolated thunderstorms
6
hours of sunshine
10
UV index (Very High)
17
% chance of some rain
<2
mm of rainfall expected
0
no heat & humidity
9
mph wind from S

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Cook Islands - quick facts
Time difference	UK -10 hours
Language(s)	English, Maori
Currency	Cook Islands Dollar, New Zealand Dollar
Electricity	I plug (240V)
Driving side	Left
Why visit?	Beaches
Tourist info	Cook Islands Tourism