September weather forecast
Matā'utu, Wallis and Futuna

In September, weather conditions slightly improve with the high temperature rising to 29.3°C (84.7°F). Though the rainfall remains minimal, the earthy scent of recent rains maintains its charm. The overall climatic conditions continue to be enjoyable and conducive for tourists. The sea temperature mildly increases to 28.3°C (82.9°F) encouraging beach activities.

Temperature

Matā'utu in September witnesses an average high-temperature of a still warm 29.3°C (84.7°F), indicating a slight variation from August's 29.1°C (84.4°F). Matā'utu's nighttime temperature in September drops to an average of 24.2°C (75.6°F).

Rainfall

In Matā'utu, during September, the rain falls for 5 days and regularly aggregates up to 221mm (8.7") of precipitation. In Matā'utu, during the entire year, the rain falls for 114 days and collects up to 3323mm (130.83") of precipitation.

Sea temperature

In Matā'utu, the average seawater temperature in September is 28.3°C (82.9°F).
Note: Water temperature between 25°C (77°F) and 29°C (84.2°F) is regarded as very warm and enjoyable by all. With these temperatures, water activities are pleasurable, without feeling uncomfortable for prolonged periods.

Daylight

In September, the average length of the day is 12h and 2min.
On the first day of September, sunrise is at 05:48 and sunset at 17:40. On the last day of the month, sunrise is at 05:27 and sunset at 17:40 +12.

Sunshine

The average sunshine in September is 5h.

UV index

The months with the highest UV index in Matā'utu are January through April, September through December, with an average maximum UV index of 12. A UV Index estimate of 11, and higher, represents an extreme threat to health from exposure to the Sun's UV radiation for ordinary individuals.
Note: In September, the UV index of 12 transforms into the following advice:
Enforce every key safety measure. Those with light skin might get burns in a matter of minutes. Limit direct sun exposure and seek shade between 10 a.m. and 4 p.m., the time of the most intense UV radiation, noting that shade structures may not provide total sun protection. On bright days sunglasses that block both UVA and UVB rays should be worn. A hat with a wide brim is extremely helpful, as it can prevent roughly 50% of UV radiation from reaching the eyes. A sunscreen with at least SPF 30 should be used liberally and reapplied frequently on cloudy days, especially after swimming or an outdoor workout. Attention! UV radiation is markedly stronger with water and sand reflections.