The climate of the Cook Islands: when to go

The Cook Islands are located north of the Tropic of Capricorn, they have a typically tropical oceanic climate, with temperatures stable all year round. The average maximum temperatures vary between 25 ° C and 29 ° C, while the average minimum temperatures vary between 18 ° C in July and August and 23 ° C in January and February.

Seasonal differences are mainly due to the rainfall regime. The Cook Islands alternate between two seasons, a wet and rainy season from December to March, and a mild and dry season from April to November. During the rainy season, from December to March, the Cook Islands can sometimes be hit by tropical cyclones and hurricanes.

The annual average rainfall is around 2,100 mm, the rainiest months are between December and April, the least rainy months are between June and October. Anti mosquito repellents are especially needed during the wet and hot season (December-March), especially on the island of Aitutaki.

The average annual sea water temperature in Rarotonga is 26 ° C, with a maximum temperature of 28 ° C in February and a minimum of 24 ° C in August.

WHEN TO GO TO THE COOK ISLANDS

For a trip to the Cook Islands, the less rainy months from May / June to October are generally preferable.

THE CLIMATE OF THE COOK ISLANDS: CLIMATE TABLES

AVARUA, RAROTONGA (6 meters)
Month	Average low (°C)	Average high (°C)	Precip. (mm)	Precip. days
January	23	29	234
February	23	29	257
March	22	29	284
April	22	28	196
May	20	26	150
June	19	25	122
July	18	25	112
August	18	25	119
September	19	25	127
October	20	26	135
November	21	27	163
December	22	28	206
YEAR			2105