Monthly weather forecast and Climate
Oneroa Village, Cook Islands CK

Warmest months (with the highest average high temperature) are January, February and March (29°C).
Months with the lowest average high temperature are July and August (25°C).

Months with the highest average low temperature are January, February and March (23°C).
Coldest months (with the lowest average low temperature) are June, July, August and September (19°C).

The wettest month (with the highest rainfall) is January (236mm).
Driest months (with the lowest rainfall) are July and September (102mm).

Months with the highest number of rainy days are January and March (17 days).
The month with the lowest number of rainy days is August (3 days).

The best month for swimming (with the highest average sea temperature) is March (28°C).
Coldest months (with the lowest average sea temperature) are July, August, September and October (24°C).

Months with the longest days are January, February, October, November and December (Average daylight: 13h).
Months with shortest days are May, June, July and August (Average daylight: 11h).

Months with most sunshine are January and March (Average sunshine: 17h).
The month with least sunshine is August (Average sunshine: 3h).

Months with the highest UV index are January, February, March, October, November and December (UV index 12).
Months with the lowest UV index are June and July (UV index 6).