Climate and Average Weather in the Cook Islands

On average, the Cook Islands experience moderate to tropical climate all year-round with pleasantly warm summers and muggy winters. Situated in the center of the Polynesian Triangle, the Cook Islands share the same time zone with Hawaii (USA) at UTC/GMT-10.

In the Cook Islands, although there are no true wet or dry seasons, there is a noticeably wetter stretch from December to May. During the dryer period from June to November temperatures average at 26°C (79°F), spanning over seven months of mild sunshine. In spite of the warm weather, the Cook Islands is mostly windy all year-round, making it less humid than other tropical islands at this time of the year.

Meanwhile, the warm season runs from November to April when temperatures average from 22°C (72°F) at night to as high as 31°C (87.8°F) during the day. Warm season is when elevated levels of humidity are expected and occasional rainfall or precipitation occurs. There is nothing to worry about rainfall in the Cook Islands as it occurs mostly in the morning or in the afternoon only for a short amount of time.

Spread out over 850,000 square miles of the ocean, the fifteen (15) islands that comprise the Cooks Islands are divided geographically into six (6) Northern Islands and nine (9) Southern Islands. The climate at the Cook Islands is moderate to tropical, although average temperatures and weather conditions may slightly differ for every island. To give a general overview of the climate in terms of geography, the following questions are addressed below.

What's the weather like in Northern Cook Islands?
Northern Cook Islands experience moderate to gusty winds, occasional rainfall, and thunderstorms. This is because the Northern part is somehow affected by low pressure in the air. Over the course of the year, Northern Cook Islands still gets adequate amounts of sunlight, making it an ideal tourist destination regardless of the time of the year.

What's the weather like in Southern Cook Islands?
Southern Cook Islands is where the capital, Avarua, is located. Climate is similar to the ones experienced by the Northern Cook Islands with gusty winds, mild sunshine, and, in the worst cases, isolated thunderstorms.

Interested in more detailed Weather and Climate information?
Please select the city below you wish to travel to, or the one closest to your destination. Each selected city will show you the following graphs:
1. Average minimum and maximum temperatures over the year
2. Average monthly precipitation over the year (rainfall, snow etc)
3. Average monthly hours of sunshine over the year
On certain pages we also offer other historical weather data like humidity, wind speed and water temperature.

Places in the Cook Islands

Select a city to see its average temperature, precipitation and hours of sunshine over the year.

Map not visible? Whoops sorry! Please refresh the page.


Islands of the Cook Islands