September weather forecastFa'a'ā, French Polynesia
September
Weather in September
September in Fa'a'ā ushers in a slight rise in rainfall and a subtle enhancement in wind speed to 24.7km/h (15.3mph). The city starts to see more cloudy days compared to previous months. Despite the minimal increase in rainfall, the weather conditions primarily remain favourable for a variety of activities. The moderate climate coupled with the charm of Fa'a'ā makes September a worthwhile visit. From this point, expect a steady shift towards more tropically inclined weather.Temperature
Fa'a'ā experiences a recorded average high-temperature of a still warm 25.1°C (77.2°F) in September, closely aligned with August's 24.9°C (76.8°F). In Fa'a'ā, the month of September brings a consistent average low-temperature of 24.2°C (75.6°F), slightly cooler than its daytime highs.Humidity
The average relative humidity in September in Fa'a'ā is 79%.Rainfall
July and September are months with the least rain when the rain falls for 15.5 days and typically aggregates up to 43mm (1.69") of rain.Sea temperature
In Fa'a'ā, in September, the average water temperature is 26.5°C (79.7°F).Note: Water temperatures from 25°C (77°F) to 29°C (84.2°F) make swimming, diving, and similar activities highly pleasurable and enjoyable for long periods without discomfort.
Daylight
In Fa'a'ā, French Polynesia, the average length of the day in September is 12h and 1min.On the first day of September, sunrise is at 06:04 and sunset at 17:51. On the last day of the month, sunrise is at 05:40 and sunset at 17:55 -10.
Sunshine
In September, the average sunshine is 7.3h.UV index
The months with the lowest UV index are June through September, with an average maximum UV index of 6. A UV Index reading of 6 to 7 represents a high threat to health from unsafe exposure to UV radiation for ordinary individuals.Note: In September, a regular UV index of 6 translates into these guidelines:
Steer clear of overexposure. Fair-skinned individuals can be scorched in less than 20 minutes. Avoid direct Sun exposure and stay in the shade between 10 a.m. and 4 p.m., a time when UV radiation is most intense, noting that not all shade structures offer full protection. Fend off the sun's harsh rays with appropriate clothing, a wide-brim hat, and UV-protective sunglasses. Take note! Sand and water reflections strengthen the Sun's UV exposure.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Fa'a'ā, French Polynesia
- Average high temperature in September: 25.1°C
The warmest month (with the highest average high temperature) is March (27.6°C).
The month with the lowest average high temperature is August (24.9°C).
- Average low temperature in September: 24.2°C
The months with the highest average low temperature are March and April (26.5°C).
The coldest month (with the lowest average low temperature) is August (23.9°C).
Average pressure in September
Fa'a'ā, French Polynesia
- Average pressure in September: 1015.3mbar
The month with the highest atmospheric pressure is September (1015.3mbar).
The months with the lowest atmospheric pressure are January and December (1011.1mbar).
Average wind speed in September
Fa'a'ā, French Polynesia
- Average wind speed in September: 24.7km/h
The windiest month (with the highest average wind speed) is September (24.7km/h).
The calmest month (with the lowest average wind speed) is March (18.1km/h).
Average humidity in September
Fa'a'ā, French Polynesia
- Average humidity in September: 79%
The month with the highest relative humidity is November (80%).
The month with the lowest relative humidity is January (77%).
Average rainfall in September
Fa'a'ā, French Polynesia
- Average rainfall in September: 43mm
The wettest month (with the highest rainfall) is December (198mm).
The driest months (with the least rainfall) are July and September (43mm).
Average rainfall days in September
Fa'a'ā, French Polynesia
- Average rainfall days in September: 15.5 days
The month with the highest number of rainy days is January (27.4 days).
The month with the least rainy days is September (15.5 days).
Average sea temperature in September
Fa'a'ā, French Polynesia
- Average sea temperature in September: 26.5°C
The best month for swimming (with the highest average sea temperature) is March (28.9°C).
The coldest month (with the lowest average sea temperature) is August (26.4°C).
Average daylight in September /
Average sunshine in September
Fa'a'ā, 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: 7h and 18min
The month with the most sunshine is November (Average sunshine: 9h and 42min).
The month with the least sunshine is August (Average sunshine: 5h and 48min).
Average sunshine days in September
Fa'a'ā, French Polynesia
- Average sunshine days in September: 8.5 days
The month with the most sunshine days is May (9.3 days).
The month with the least sunshine days is February (2.6 days).
Average UV index in September
Fa'a'ā, French Polynesia
- Average UV index in September: 6
The months with the highest UV index are January, February, March, April, May, October, November and December (UV index 7).
The months with the lowest UV index are June, July, August and September (UV index 6).
Average cloud cover in September
Fa'a'ā, French Polynesia
- Average cloud cover in September: 44
The month with the most cloud cover is January (Cloud cover 48).
The month with the least cloud cover is April (Cloud cover 40).
Average visibility in September
Fa'a'ā, French Polynesia
- Average visibility in September: 10km
The months with the highest visibility are February, March, April, May, June, July, August, September, October, November and December (10km).
The month with the lowest visibility is January (9km).





