the Cook Islands Weather by Month: Temperature & Rainfall Guide

Many people wonder what the weather conditions are in the Cook Islands over the year. What is the best time to visit the Cook Islands?

This page shows the average weather conditions by month in the Cook Islands over the year in: January, February, March, April, May, June, July, August, September, October, November, December.

In January the weather in the Cook Islands ranges from less favorable in Arutanga to mixed in Rarotonga. In Rarotonga you can expect warm maximum average daytime temperatures around 28°C (82°F) and nighttime temperatures around 25°C (77°F).

Find more detailed climate information for the Cook Islands in January here.

In February the weather in the Cook Islands ranges from less favorable in Arutanga to mixed in Rarotonga. In Rarotonga you can expect warm maximum average daytime temperatures around 28°C (82°F) and nighttime temperatures around 26°C (79°F).

Find more detailed climate information for the Cook Islands in February here.

In March the weather in the Cook Islands ranges from less favorable in Pukapuka to good in Rarotonga. In Rarotonga you can expect warm maximum average daytime temperatures around 28°C (82°F) and nighttime temperatures around 26°C (79°F). On average, this month is one of the warmest months of the year in the Cook Islands. So be prepared and make sure to dress lightly.

Find more detailed climate information for the Cook Islands in March here.

In April the weather in the Cook Islands ranges from mixed in Rakahanga to very good in Rarotonga. The average maximum daytime temperatures are high and range from 28°C (82°F) in Rarotonga to 30°C (86°F) in Pukapuka.

Find more detailed climate information for the Cook Islands in April here.

In May the weather in the Cook Islands ranges from good in Penrhyn to very good in Rarotonga. The average maximum daytime temperatures are high and range from 27°C (81°F) in Rarotonga to 30°C (86°F) in Penrhyn.

Find more detailed climate information for the Cook Islands in May here.

In June the weather in the Cook Islands ranges from very good in Penrhyn to excellent in Rarotonga. The average maximum daytime temperatures are high and range from 26°C (79°F) in Arorangi to 29°C (84°F) in Penrhyn.

Find more detailed climate information for the Cook Islands in June here.

In July the weather in the Cook Islands ranges from very good in Rarotonga to excellent in Arutanga. The average maximum daytime temperatures are high and range from 25°C (77°F) in Rarotonga to 29°C (84°F) in Penrhyn.

Find more detailed climate information for the Cook Islands in July here.

In August the weather in the Cook Islands ranges from very good in Penrhyn to excellent in Rarotonga. The average maximum daytime temperatures are high and range from 25°C (77°F) in Rarotonga to 29°C (84°F) in Penrhyn. On average, this month is the coldest month of the year in the Cook Islands.

Find more detailed climate information for the Cook Islands in August here.

In September the weather in the Cook Islands ranges from very good in Pukapuka to excellent in Rarotonga. The average maximum daytime temperatures are high and range from 25°C (77°F) in Rarotonga to 29°C (84°F) in Penrhyn.

Find more detailed climate information for the Cook Islands in September here.

In October the weather in the Cook Islands ranges from mixed in Pukapuka to excellent in Rarotonga. The average maximum daytime temperatures are high and range from 25°C (77°F) in Rarotonga to 29°C (84°F) in Penrhyn.

Find more detailed climate information for the Cook Islands in October here.

In November the weather in the Cook Islands ranges from mixed in Pukapuka to very good in Rarotonga. The average maximum daytime temperatures are high and range from 26°C (79°F) in Ngatangiia to 29°C (84°F) in Pukapuka.

Find more detailed climate information for the Cook Islands in November here.

In December the weather in the Cook Islands ranges from less favorable in Pukapuka to very good in Penrhyn. The average maximum daytime temperatures are high and range from 27°C (81°F) in Ngatangiia to 29°C (84°F) in Penrhyn.

Find more detailed climate information for the Cook Islands in December here.