Weather in The Cook Islands in September

So you're interested in going to The Cook Islands in September

September is a hot and slightly rainy time for sunbathing in The Cook Islands. September is a good month for swimming in The Cook Islands with warm sea temperatures. Consider visiting The Cook Islands in the months of March, April, November, December, for the best beach weather. Also consider one of our other suggestions for September.

Temperature in The Cook Islands in September

The average maximum temperature in The Cook Islands in September is 26°. The average maximum temperature is 25° in the previous month and 27° in the next month.

The average temperature in The Cook Islands in September is 23°. The average temperature ranges is 22° in the previous month and 24° in the next month.

The average minimum temperature in The Cook Islands in September is 21°. The minimum temperature is 20° in the previous month and 22° in the next month.

Sunshine in The Cook Islands in September

The average day light hours per day in The Cook Islands in September are 12 and there are 3 hours of sunshine per day on average during September making it not a particularly sunny month.

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° 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 2cm and on average there are 11.7 rainy days in September making it a slightly wet 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° which is somewhat uncomfortable for most people in cities but fine on a beach. The dew point is 20° in the previous month and 22° 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 26kmh. The average maximum wind speed is 26kmh in the previous month and 25kmh in the next month.

The average wind speed in The Cook Islands in September is typically 15kmh. The average wind speed is 14kmh in the previous month and 14kmh 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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