Annual average weather for The Cook Islands

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When is the best time to visit The Cook Islands?

The best months to visit The Cook Islands are June, July, August, September, for the best beach weather, the most sunshine and optimal sunbathing and swimming conditions with the least chance of rain.

The weather is perfect for sunbathing in the months from October to June when the maximum temperature reaches above 26°C (72°F)

The sea is best for swimming between December and May when the sea temperature is above the average 26°C (79°F) which is very warm and ideal for relaxing and swimming for the whole day.

Can you sunbathe in The Cook Islands year round?

Yes, you can sunbathe in The Cook Islands all year round.

The weather is best for sunbathing in the months from October to June when the maximum temperature reaches above 26°C (72°F)

More info about the annual temperatures and sunshine.

Can you swim in The Cook Islands year round?

Yes, you can swim in The Cook Islands all year round.

The warmest sea water temperatures in The Cook Islands are found in March when they peak at 28°C (82°F) and lowest in August when they dip to 24°C (76°F).

The sea temperature is above average for swimming between December and May when the sea temperature is above 26°C (79°F) which is very warm and ideal for relaxing and swimming for the whole day.

More info about the annual sea temperatures

When is the hottest month in The Cook Islands?

The hottest month in The Cook Islands is February when the average maximum temperature is hot 29°C (85°F), average temperature is 27°C (80°F) and average minimum temperature is 24°C (76°F).

More info about the annual temperatures and sunshine.

When is the coldest month in The Cook Islands?

The coolest month in The Cook Islands is August when the average maximum temperature is 25°C (77°F), average temperature is 22°C (72°F) and average minimum temperature is 20°C (68°F).

More info about the annual temperatures and sunshine

When is the sunniest month in The Cook Islands?

The sunniest days in The Cook Islands are in August which has the most hours of sunshine per day with an average of 7.8 hours of sunshine per day. August is sunny but overcast at times with many bright days.

More info about the annual sunshine.

When is the least sunny month in The Cook Islands?

January has the least sunshine with an average of 6.4 hours of sunshine per day. January is quite sunny but with occasional periods of cloudy and overcast skies.

More info about the annual sunshine.

When is the driest month in The Cook Islands?

The driest month in The Cook Islands is June with 11.2cm (4.4inches) of rain and August has the fewest days of rain with 4.5 days with some rain, a quite rainy time to visit the beach.

More info about the annual rainfall

When is the wettest month in The Cook Islands?

The wettest month in The Cook Islands is January with 23.1cm (9.1inches) of rain and March has the most days of rain with 18.1 days with some rain, a wet time to visit the beach.

More info about the annual rainfall.

When is the sea the coldest in The Cook Islands?

The coldest sea water temperatures in The Cook Islands are found in August when they dip to 24°C (76°F) which is warm and pleasant for relaxing and swimming for long periods.

More info about the annual sea temperatures.

When is the sea the warmest in The Cook Islands?

The warmest sea water temperatures in The Cook Islands are found in March when they peak at 28°C (82°F) which is very warm and ideal for relaxing and swimming for the whole day.

More info about the annual sea temperatures.

When is the most humid month in The Cook Islands?

The most humid month in The Cook Islands is February with a dew point (an indicator of humidity) of 25°C (77°F) which is very uncomfortable and fairly oppressive unless you are on a beach. At night you would most likely require airconditioning.

More info about the annual humidity.

When is the least humid month in The Cook Islands?

The least humid month in The Cook Islands is August with a dew point of 20°C (68°F) which is somewhat uncomfortable for most people in cities but fine on a beach.

More info about the annual humidity.

When is the windiest month in The Cook Islands?

The most windy month in The Cook Islands is September when the average maximum windspeed is 26KM/H (16MPH) and the average wind speed is 15KM/H (9MPH).

More info about the annual wind conditions.

Annual Temperature for The Cook Islands

The hottest month in The Cook Islands is February when the average maximum temperature is 29°C (85°F), average temperature is 27°C (80°F) and average minimum temperature is 24°C (76°F).

The coolest month in The Cook Islands is August when the average maximum temperature is 25°C (25°F), average temperature is 22°C (72°F) and average minimum temperature is 20°C (68°F).

Annual Sunshine for The Cook Islands

The longest days in The Cook Islands are in December, with an average of 13.4 hours of daylight per day. June has the shortest days with an average of 10.8 hours of daylight per day.

The sunniest days in The Cook Islands are in August which has the most hours of sunshine per day with an average of 7.8 hours of sunshine per day, making it sunny but overcast at times with many bright days.

January has the least sunshine with an average of 6.4 hours of sunshine per day, making it quite sunny but with occasional periods of cloudy and overcast skies.

The ultraviolet index is the highest in January when it reaches 15.7 and lowest in June when it reaches 6.

An ultraviolet index reading above 11 indicates an extreme risk of harm from unprotected sun exposure. Unprotected skin risks burning in less than 10 minutes. Take all precautions because unprotected skin and eyes can burn in minutes. Tanning will be safest before 10am and after 4pm but only with a good application of sun screen. For those with sensitive skin stay in the shade and wear protective clothing, a wide-brimmed hat, and UV-blocking sunglasses. Generously apply broad spectrum SPF 30+ sunscreen every 2 hours, even on cloudy days. Watch out for relections from water that may increase ultraviolet exposure.

Annual Sea Temperature for The Cook Islands

The warmest sea water temperatures in The Cook Islands are found in March when they peak at 28°C (82°F) and lowest in August when they dip to 24°C (76°F).

The sea is best for swimming between December and May when the temperature is above 26°C (79°F) which is very warm and ideal for relaxing and swimming for the whole day.

Annual Rainfall for The Cook Islands

The wettest month in The Cook Islands is January with 23.1cm (9.1inches) of rain and March has the most days of rain with 18.1 days with some rain, a wet time to visit the beach.

The driest month in The Cook Islands is June with 11.2cm (4.4inches) of rain and August has the fewest days of rain with 4.5 days with some rain, a quite rainy time to visit the beach.

Annual Humidity for The Cook Islands

The most humid month in The Cook Islands is February with a dew point (an indicator of humidity) of 25°C (77°F) which is very uncomfortable and fairly oppressive unless you are on a beach. At night you would most likely require airconditioning.

The least humid month in The Cook Islands is August with a dew point of 20°C (68°F) which is somewhat uncomfortable for most people in cities but fine on a beach.

Annual Wind Speed for The Cook Islands

The most windy month in The Cook Islands is September when the average maximum windspeed is 26KM/H (16MPH) and the average wind speed is 15KM/H (9MPH).

The least windy month in The Cook Islands is April when the average maximum windspeed is 23KM/H (14MPH) and the average wind speed is 12KM/H (7MPH).

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