Weather in Cook Islands

Weather in Cook Islands can be easily categorized as tropical. The summer months are marked with high temperatures and high humidity as perpetuated by higher rainfall. Tropical storms are more likely to hit the island during this time of the year. During winter months, climate in Cook Islands is cooler and drier.


Different islands of the Cook Islands group have different weather conditions. While Aitutaki and the northern islands record relatively higher temperatures than the main island of Rarotonga. The temperatures keep on decreasing further south as Mangaia in the south is the coolest island and light woolens may be needed at nights and early mornings.


Summer in Cook Islands - December to April

Though mornings are bright and sunny, late afternoon downpours around Rarotonga, strong winds and the occasional tropical cyclone are not uncommon in this season. This is a peak season for tourism in Cook Islands as the lush vibrancy of the countryside is at display. The only downside to this is high humidity, sticky nights and more mosquitoes.
Average day temperatures: 29oC


Winter in Cook Islands - May to October
Midwinter time in Cook Islands that coincides with the month of July is a pleasant time to visit the island as the average daily temperature is very pleasant around 25oC. Cooler, still pleasant night temperatures around 19oC might make you want to put on a light jumper in the evenings and early mornings.