Weather in The Cook Islands in September

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Visiting The Cook Islands in September

September is one of the best months to visit The Cook Islands for the best beach weather. It has the most sunshine and best sunbathing and swimming conditions of the year.

September has average maximum temperatures of 26°C (78°F) which is very warm and perfect for sunbathing on clear days. The sunshine percentage is 65% making it sunny but overcast at times. The hours of sunshine per day are 7.8hrs making the days quite long and bright. September has total rainfall of 12.1cm (4.8inches) making it quite dry with only moderate showers. There are just 6.2 days with some rainfall so you can still enjoy the beach on the majority of rain free clear days. Sea temperatures are a warm 25°C (76°F). September is a good month for swimming in The Cook Islands with comfortable temperatures for most people.

Also consider visiting The Cook Islands in one of the other best months of June, July, August, for the best beach weather.

Also consider one of our other suggestions for September.

Can you sunbathe in The Cook Islands in September?

Yes, September is a good time for sunbathing in The Cook Islands.

September has average maximum temperatures of 26°C (78°F) which is very warm and perfect for sunbathing on clear days. The sunshine percentage is 65% making it sunny but overcast at times. The hours of sunshine per day are 7.8hrs making the days quite long and bright. September has total rainfall of 12.1cm (4.8inches) making it quite dry with only moderate showers. There are just 6.2 days with some rainfall so you can still enjoy the beach on the majority of rain free clear days.

More about September temperature and sunshine.

Can you swim in The Cook Islands in September?

Yes, September is a good month for swimming in The Cook Islands with warm sea temperatures 25°C (76°F).

More about September sea temperatures.

Is September a good time to holiday in The Cook Islands?

Yes, September is a great time for a holiday in The Cook Islands.

September has average maximum temperatures of 26°C (78°F) which is very warm and perfect for sunbathing on clear days. The sunshine percentage is 65% making it sunny but overcast at times. The hours of sunshine per day are 7.8hrs making the days quite long and bright. September has total rainfall of 12.1cm (4.8inches) making it quite dry with only moderate showers. There are just 6.2 days with some rainfall so you can still enjoy the beach on the majority of rain free clear days. Sea temperatures are a warm 25°C (76°F). September is a good month for swimming in The Cook Islands with comfortable temperatures for most people.

More about the September temperatures and sunshine.

Is The Cook Islands warm in September?

Yes, The Cook Islands is very warm and perfect for sunbathing on clear days in September.

The average maximum temperature in The Cook Islands in September is 26°C (78°F). The average maximum temperature is 25°C (77°) in the previous month and 27°C (80°F) in the next month.

The average temperature in The Cook Islands in September is 23°C (73°F). The average temperature is 22°C (72°F) in the previous month and 24°C (75°F) in the next month.

More info about the September temperatures and sunshine.

How sunny is The Cook Islands in September?

The average day light hours per day in The Cook Islands in September are 12. The sunshine percentage is 65% making it sunny but overcast at times. The hours of sunshine per day are 7.8hrs making the days quite long and bright.

More about September sunshine.

Temperature in The Cook Islands in September

The average maximum temperature in The Cook Islands in September is 26°C (78°F). The average maximum temperature is 25°C (77°F) in the previous month and 27°C (80°F) in the next month.

The average temperature in The Cook Islands in September is 23°C (73°F). The average temperature is 22°C (72°F) in the previous month and 24°C (75°F) in the next month.

The average minimum temperature in The Cook Islands in September is 21°C (70°F). The minimum temperature is 20°C (68°F) in the previous month and 22°C (71°F) in the next month.

Sunshine in The Cook Islands in September

During September the average day light hours are 12 per day in The Cook Islands. The sunshine percentage is 65% making it sunny but overcast at times. The hours of sunshine per day are 7.8hrs making the days quite long and bright.

The ultraviolet index in The Cook Islands in September is typically 11 during September. 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.

Sea Temperature in The Cook Islands in September

The average sea water temperature in The Cook Islands in September is 24.7°C (76.5°F) which is warm and pleasant for relaxing and swimming for long periods.

Rainfall in The Cook Islands in September

The average total rainfall in The Cook Islands in September is 12.1cm (4.8inches) and on average there are 6.2 rainy days in September making it a quite rainy time to visit the beach.

Humidity in The Cook Islands in September

The maximum dew point (an indicator of humidity) in The Cook Islands in September is 21°C (70°F) which is somewhat uncomfortable for most people in cities but fine on a beach. The dew point is 20°C (68°F) in the previous month and 22°C (22°F) in the next month.

The average maximum relative humidity in The Cook Islands in September is typically 89.4%. The maximum relative humidity is 89% in the previous month and 89.8% in the next month.

The average relative humidity in The Cook Islands in September is typically 78%. The average relative humidity is 76.2% in the previous month and 78.3% in the next month.

Wind Speed in The Cook Islands in September

The average maximum wind speed in The Cook Islands in September is typically 26KM/H (16MPH). The average maximum wind speed is 26KM/H (16MPH) in the previous month and 25KM/H (15MPH) in the next month.

The average wind speed in The Cook Islands in September is typically 15KM/H (9MPH). The average wind speed is 14KM/H (9MPH) in the previous month and 14KM/H (9MPH) in the next month.

The average wind direction in The Cook Islands in September is from the East-Southeast.

Monthly Averages

Suggested Beaches in September

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Beaches recommended for you today, this weekend, in the next 2 weeks or in any month of the year.

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Need Inspiration?

Beaches recommended for you today, this weekend, in the next 2 weeks or in any month of the year.