Cook Islands climate and temperatures

The climate of Cook Islands is a tropical rainforest climate (Köppen: Af), with high temperatures and heavy rainfall year-round, without a true dry season. Monthly temperatures range from a minimum of 26°C in July to a maximum of 30°C in January. The average annual temperature is around 28°C.

During the colder months, nighttime temperatures average around 20°C, while in the warmer months they average about 24°C.

Popular destinations in Cook Islands

• Amuri
• Ivirua
• Mangarei Village
• Muri
• Ngatangiia
• Omoka
• Tautu
• Titikaveka
• Vaipae

View all destinations in Cook Islands

Climate table of Cook Islands

The climate table below gives you a clear overview of the climate in Cook Islands by month, from average temperatures and rainfall to UV levels. This makes it easy to see when the weather best suits your travel plans.

Best time to visit Cook Islands

The best time to visit Cook Islands is January, February, March, April, May, June, July, August, September, October, November en December. During this period, temperatures are usually pleasant to warm and there is relatively little rainfall. Between January and December, average high temperatures range roughly from 30°C to 29°C, while rainfall remains limited. The warmest month is January, with an average daytime temperature of around 30°C. The driest month is June, with about 80 mm of rainfall, while March is usually the wettest month of the year, with approximately 266 mm. Snow plays virtually no role in the climate here.

Average temperature per month

This chart shows the average daytime (maximum) and nighttime (minimum) temperatures per month in Cook Islands. The figures are based on climate data from recent years and are presented in degrees Celsius, so you can clearly see the temperature range for each month.

Average rainfall per month

This chart shows the average monthly rainfall in Cook Islands. The figures are based on long-term climate data and are displayed in millimeters, so you can immediately see which months are drier or wetter.

Average UV index per month

This chart shows the average monthly sun intensity in Cook Islands. The UV index ranges from 0 (no UV radiation) to 11+ (extreme). A higher UV index means you can burn more quickly, making proper sun protection increasingly important.

Average annual temperature

This chart shows the average annual temperature in Cook Islands based on data from the past ten years. It allows you to see at a glance how the climate is evolving and whether there are clear warming trends.

Average annual rainfall

This chart shows the average annual rainfall in Cook Islands over the past ten years. It allows you to see at a glance how much rain falls each year and whether there are clear fluctuations between the years.

Weather experiences in Cook Islands

The weather in Cook Islands is rated an average of 4.3 out of 5 stars by 8 visitors. Have you been to Cook Islands? Share your experience with the weather to help other visitors plan their trip.

Average weather per month

Click on a month below and discover what the weather in Cook Islands is typically like. For each period, you can instantly see the average temperature, rainfall, wind, and UV index. Thanks to years of historical weather data, you’ll know exactly what to expect during your trip.

• January
• February
• March
• April
• May
• June
• July
• August
• September
• October
• November
• December