September weather forecastVaitahu, French Polynesia
September
Weather in September
September ushers in the spring season with slightly increased average temperatures. With the retreating monsoon, rainfall is minimal at 22mm (0.87"), marking September as one of the driest months of the year. The shorter days are filled with ample sunshine and the constant breeze makes for a comfortingly warm and dry climate. Richly illuminated by the tropical sun, Vaitahu looks even more picturesque. The early fall adds a touch of color to the month, making it the perfect period for sightseeing.Temperature
Entering September, Vaitahu's average high-temperature reads a still moderately hot 26.5°C (79.7°F), indicating a close resemblance to the previous month's climate. Vaitahu logs an average low-temperature of 25.3°C (77.5°F) during the nights of September, subtly lower than its daytime highs.Humidity
The months with the lowest humidity are January, September and December, with an average relative humidity of 75%.Rainfall
The month with the least rainfall is September, when the rain falls for 15.6 days and typically collects 22mm (0.87") of precipitation.Daylight
The average length of the day in September is 12h and 4min.On the first day of September, sunrise is at 05:48 and sunset at 17:44. On the last day of the month, sunrise is at 05:30 and sunset at 17:41 -0930.
Sunshine
In Vaitahu, the average sunshine in September is 8.8h.UV index
January through December, with an average maximum UV index of 7, are months with the highest UV index. January through December, with an average maximum UV index of 7, are months with the lowest UV index. A UV Index of 6 to 7 symbolizes a high health hazard from exposure to the Sun's UV rays for the ordinary person.Note: During September, 7 as the daily maximum UV index converts into the following advice:
Elude overexposure. Fair-skinned people could get burnt in less than 20 minutes. Stay out of direct sunlight and seek shade between 10 a.m. and 4 p.m., when UV radiation is strongest, but remember that shade devices may not offer full sun protection. Wearing sunglasses with both UVA and UVB protection effectively reduces sun-induced eye damage.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Vaitahu, French Polynesia
- Average high temperature in September: 26.5°C
The warmest month (with the highest average high temperature) is March (28.2°C).
The month with the lowest average high temperature is August (26.4°C).
- Average low temperature in September: 25.3°C
The month with the highest average low temperature is March (27°C).
The coldest month (with the lowest average low temperature) is August (25.1°C).
Average pressure in September
Vaitahu, French Polynesia
- Average pressure in September: 1012.9mbar
The months with the highest atmospheric pressure are August and September (1012.9mbar).
The months with the lowest atmospheric pressure are February, March and December (1010.8mbar).
Average wind speed in September
Vaitahu, French Polynesia
- Average wind speed in September: 27.2km/h
The windiest month (with the highest average wind speed) is July (28.1km/h).
The calmest month (with the lowest average wind speed) is March (22.3km/h).
Average humidity in September
Vaitahu, French Polynesia
- Average humidity in September: 75%
The month with the highest relative humidity is April (77%).
The months with the lowest relative humidity are January, September and December (75%).
Average rainfall in September
Vaitahu, French Polynesia
- Average rainfall in September: 22mm
The wettest month (with the highest rainfall) is March (49mm).
The driest month (with the least rainfall) is September (22mm).
Average rainfall days in September
Vaitahu, French Polynesia
- Average rainfall days in September: 15.6 days
The month with the highest number of rainy days is March (21 days).
The month with the least rainy days is August (15.5 days).
Average daylight in September /
Average sunshine in September
Vaitahu, French Polynesia
- Average daylight in September: 12h and 6min
The month with the longest days is December (Average daylight: 12h and 42min).
The month with the shortest days is June (Average daylight: 11h and 36min).
- Average sunshine in September: 8h and 48min
The month with the most sunshine is January (Average sunshine: 10h and 42min).
The month with the least sunshine is July (Average sunshine: 6h and 30min).
Average sunshine days in September
Vaitahu, French Polynesia
- Average sunshine days in September: 6.9 days
The month with the most sunshine days is November (8.8 days).
The month with the least sunshine days is March (5.9 days).
Average UV index in September
Vaitahu, French Polynesia
- Average UV index in September: 7
The months with the highest UV index are January, February, March, April, May, June, July, August, September, October, November and December (UV index 7).
The months with the lowest UV index are January, February, March, April, May, June, July, August, September, October, November and December (UV index 7).
Average cloud cover in September
Vaitahu, French Polynesia
- Average cloud cover in September: 37
The month with the most cloud cover is November (Cloud cover 40).
The month with the least cloud cover is January (Cloud cover 36).
Average visibility in September
Vaitahu, French Polynesia
- Average visibility in September: 10km
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (10km).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (10km).





