September weather forecast
Atuona, French Polynesia

September's weather in Atuona, French Polynesia sees a continuation of the unpretentious changes observed the previous month, making it seem as if the island has settled into a rhythm. There is less rain with precipitation coming in at 81mm (3.19"), and stable temperatures both on land and in the sea. The expansion of day time adds a welcome extension to the time available for outdoor pastimes. Despite the declining rain, it pays to be prepared for a surprise shower or two.

Temperature

The average high-temperature in Atuona, French Polynesia, during September is a still warm 29°C (84.2°F), almost matching the conditions of the preceding month. September in Atuona generally records an average low-temperature of 23°C (73.4°F).

Rainfall

In Atuona, in September, during 6 rainfall days, 81mm (3.19") of precipitation is typically accumulated. In Atuona, during the entire year, the rain falls for 121 days and collects up to 1293mm (50.91") of precipitation.

Sea temperature

September is the month with the coldest seawater in Atuona, with an average sea temperature of 27.1°C (80.8°F).
Note: Surface water temperatures between 25°C (77°F) and 29°C (84.2°F) offer outstanding conditions for any water activity, providing extreme pleasure for extended periods.

Daylight

The average length of the day in September in Atuona, French Polynesia, is 12h and 4min.
On the first day of the month, sunrise is at 05:47 and sunset at 17:43. On the last day of September, sunrise is at 05:30 and sunset at 17:41 -0930.

Sunshine

January, February, September through December, with an average of 8h of sunshine, are months with the most sunshine.

UV index

January through April, September through December, with an average maximum UV index of 12, are months with the highest UV index. A UV Index estimate of 11, and higher, represents an ultimate health vulnerability from unsafe exposure to UV radiation for the ordinary person.
Note: The maximum daily UV index of 12 in September interprets into the following recommendations:
Implement all key precautions. Warding off sun damage is critical. Stay in the shade and limit sun exposure from 10 a.m. to 4 p.m., when UV radiation is most potent. Keep in mind that shade structures like parasols or canopies do not offer full protection. Safeguard your eyes, ears, and face from sun rays with the aid of a wide-brim hat. A broad-spectrum sunscreen of SPF 30+ should be used liberally and reapplied every two hours or post an outdoor workout or swim. Beware! The strength of the UV rays is significantly increased by the reflection of the water and sand.