September weather forecastMoorea-Maiao, French Polynesia
September
Weather in September
September sees the weather in Moorea-Maiao start to take a subtle turn, as there is a slight increase in rainfall while the temperatures and UV index remain steady. This transition signifies the end of the drier months and the approach of the more humid part of the year. Despite slight changes, September still offers warm and mostly dry days suitable for sightseeing and beach activities. Outdoor explorers can fully enjoy this month's weather to savour underwater activities and grassland excursions. With the changing weather conditions, September serves as a gateway to the warmth and wetness of the coming months.Temperature
June through October are identified as the coldest months in Moorea-Maiao, French Polynesia, with an average high-temperature of 28°C (82.4°F).Rainfall
In Moorea-Maiao, French Polynesia, in September, it is raining for 5 days, with typically 54mm (2.13") of accumulated precipitation. Throughout the year, there are 115 rainfall days, and 1787mm (70.35") of precipitation is accumulated.Sea temperature
August and September, with an average sea temperature of 26°C (78.8°F), are months with the coldest seawater in Moorea-Maiao.Note: Water temperatures between 25°C (77°F) and 29°C (84.2°F) are ideal for all water activities, offering enjoyment without causing discomfort over extended periods.
Daylight
In Moorea-Maiao, the average length of the day in September is 12h and 1min.On the first day of September in Moorea-Maiao, French Polynesia, sunrise is at 06:05 and sunset at 17:52. On the last day of the month, sunrise is at 05:41 and sunset at 17:56 -10.
Sunshine
In September, the average sunshine in Moorea-Maiao is 5h.UV index
In September, the average daily maximum UV index in Moorea-Maiao is 11. A UV Index of 11, and more, symbolizes an extreme health hazard from unprotected exposure to Sun's UV rays for ordinary individuals.Note: The maximum UV index, 11 during September, leads to the following recommendations:
Execute every important safeguard, as unprotected skin and eyes could burn within moments. Make an effort to avoid direct sun exposure between 10 a.m. and 4 p.m., the peak period for UV radiation, and note that objects like parasols or canopies might not offer full sun protection. Consider a wide-brim hat essential for effective sun defense covering your face, neck, and eyes. Following every swim or outdoor workout, a sunscreen with an SPF of not less than 30 should be liberally applied and re-applied frequently, even on overcast days. Notice! Sand and water reflections contribute to a stronger UV exposure.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Moorea-Maiao, French Polynesia
- Average high temperature in September: 28°C
The warmest month (with the highest average high temperature) is March (31°C).
The months with the lowest average high temperature are June, July, August, September and October (28°C).
- Average low temperature in September: 22°C
The month with the highest average low temperature is March (25°C).
The coldest months (with the lowest average low temperature) are July, August and September (22°C).
Average rainfall in September
Moorea-Maiao, French Polynesia
- Average rainfall in September: 54mm
The wettest month (with the highest rainfall) is January (307mm).
The driest month (with the least rainfall) is August (53mm).
Average rainfall days in September
Moorea-Maiao, French Polynesia
- Average rainfall days in September: 5 days
The months with the highest number of rainy days are January and March (17 days).
The month with the least rainy days is August (4 days).
Average sea temperature in September
Moorea-Maiao, French Polynesia
- Average sea temperature in September: 26°C
The best months for swimming (with the highest average sea temperature) are March and April (29°C).
The coldest months (with the lowest average sea temperature) are August and September (26°C).
Average daylight in September /
Average sunshine in September
Moorea-Maiao, French Polynesia
- Average daylight in September: 12h and 0min
The month with the longest days is December (Average daylight: 13h and 12min).
The month with the shortest days is June (Average daylight: 11h and 6min).
- Average sunshine in September: 5h
The months with the most sunshine are January and March (Average sunshine: 17h).
The month with the least sunshine is August (Average sunshine: 4h).
Average UV index in September
Moorea-Maiao, French Polynesia
- Average UV index in September: 11
The months with the highest UV index are January, February, March, October, November and December (UV index 12).
The months with the lowest UV index are June and July (UV index 7).





