When to Go

The Cook Islands have two distinct seasons that can be classified as either summer and winter, or wet and dry. While the temperature variations between the two seasons are negligible, the precipitation levels are polar opposites. There are, of course, other factors to consider when you're deciding on the best time to visit the Cook Islands, including annual events and peak tourist times.

Summer

Summers on the Cook Islands last from November through April and encompass both the rainy season, from December through April, and hurricane season, from November through March. Both the days and nights are hot and humid throughout the summer, with temperatures averaging a sticky 29 degrees C. You will find a bit of light in the season, though, as mornings are generally bright and sunny before descending into rainy afternoons. As the season progresses, the islands see a marked increase of thunderstorms that occasionally turn into hurricanes.

Rarotonga experiences the most rain throughout the season, so you may wish to avoid that area. However, as March and April come around, the weather is on a definite upswing. The days become clearer with less rainfall and a drop in humidity, which makes these months a very pleasant time to be on the islands. Christmas and New Year bring the locals back home to visit families, so if you're going to be traveling around the holidays, book your plane tickets and accommodation months in advance.

Winter

From May through October the Cook Islands experience their winter, also known as the dry season. The rainfall has dropped considerably, though keep in mind that Rarotonga will still get more rain than any of the other islands. Temperatures usually hover around 25 degrees C, but the level of comfort is markedly increased with the drop in humidity during winter months. This season does experience cooler nights, but the average temperature usually stays around 19 degrees C, with the coldest ever recorded temperature in the winter only reaching 9 degrees C. Still, it may be wise to bring a light jacket or sweater for evenings. September and October are great times to visit, as the temperatures are at their warmest before the summertime, without the added humidity.

Annual Events

Festivals are a large part of island life, and the Cook Islands are no exception. The start of the summer season sees the Tiare Week Festival every November, during which the flower displays and contests make the islands a riot of colours and a sight to behold. Beach horse racing takes place every January, and boat racing is the annual event come Easter. Winter starts off with the coconut festival in May, which includes demonstrations of cooking with coconuts as well as cocktail competitions. The Polynesian Music Festival is a popular event that showcases traditional instruments, and throughout the season you can watch or take part in the various sporting events including marathons, squash, golf and even lawn bowling.