September weather forecastMāhina, French Polynesia
September
Weather in September
The weather in September in Māhina experiences a gradual transition into the wet season with a rise in rainfall to 50mm (1.97"). Simultaneously, the temperatures - both air and sea, also increase, heating up the city. Notably, the wind condition reaches its peak with an average wind gust of 34.3km/h (21.3mph), introducing few windy days. The cloud cover starts to lessen, increasing visibility and sunshine duration. Overall, the general climate becomes warmer and windier as September progresses.Temperature
August and September, with an average high-temperature of 24.6°C (76.3°F), are the coldest months in Māhina, French Polynesia.Humidity
In Māhina, the average relative humidity in September is 79%.Rainfall
In Māhina, during September, the rain falls for 18.2 days and regularly aggregates up to 50mm (1.97") of precipitation. Throughout the year, there are 272.6 rainfall days, and 1577mm (62.09") of precipitation is accumulated.Sea temperature
August and September, with an average sea temperature of 26.4°C (79.5°F), are months with the coldest seawater.Note: Water temperature ranging from 25°C (77°F) to 29°C (84.2°F) is seen as very warm and delightful by everyone. During these temperatures, water activities become enjoyable, without causing discomfort for extended periods.
Daylight
In Māhina, the average length of the day in September is 12h and 1min.On the first day of September in Māhina, sunrise is at 06:04 and sunset at 17:51. On the last day of the month, sunrise is at 05:39 and sunset at 17:55 -10.
Sunshine
The average sunshine in September is 7h.UV index
The months with the lowest UV index are June through November, with an average maximum UV index of 6. A UV Index reading of 6 to 7 represents a high health vulnerability from unprotected exposure to Sun's UV rays for ordinary individuals.Note: The maximum UV index of 6 during September translates into these guidelines:
Stick with precautions and abide by sun safety procedures. Evading sunburn is essential. The hours from 10 a.m. to 4 p.m. have the most intense UV radiation. As much as possible, limit direct sun exposure during this period. A wide-brimmed hat is a shield, deflecting up to 50% of harmful UV radiation from eyes. Heads up! Sand and water reflection magnifies the UV exposure from the Sun.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Māhina, French Polynesia
- Average high temperature in September: 24.6°C
The warmest month (with the highest average high temperature) is March (27.3°C).
The months with the lowest average high temperature are August and September (24.6°C).
- Average low temperature in September: 24°C
The months with the highest average low temperature are March and April (26.2°C).
The coldest month (with the lowest average low temperature) is August (23.5°C).
Average pressure in September
Māhina, 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
Māhina, French Polynesia
- Average wind speed in September: 25km/h
The windiest month (with the highest average wind speed) is September (25km/h).
The calmest month (with the lowest average wind speed) is March (18.3km/h).
Average humidity in September
Māhina, French Polynesia
- Average humidity in September: 79%
The months with the highest relative humidity are August, October and November (80%).
The months with the lowest relative humidity are January, March and April (78%).
Average rainfall in September
Māhina, French Polynesia
- Average rainfall in September: 50mm
The wettest month (with the highest rainfall) is December (246mm).
The driest month (with the least rainfall) is August (40mm).
Average rainfall days in September
Māhina, French Polynesia
- Average rainfall days in September: 18.2 days
The month with the highest number of rainy days is January (29.3 days).
The month with the least rainy days is August (17.3 days).
Average sea temperature in September
Māhina, French Polynesia
- Average sea temperature in September: 26.4°C
The best month for swimming (with the highest average sea temperature) is March (28.9°C).
The coldest months (with the lowest average sea temperature) are August and September (26.4°C).
Average daylight in September /
Average sunshine in September
Māhina, 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 0min
The month with the most sunshine is December (Average sunshine: 9h and 12min).
The month with the least sunshine is August (Average sunshine: 5h and 36min).
Average sunshine days in September
Māhina, French Polynesia
- Average sunshine days in September: 6.2 days
The month with the most sunshine days is August (9.4 days).
The month with the least sunshine days is January (0.8 days).
Average UV index in September
Māhina, French Polynesia
- Average UV index in September: 6
The months with the highest UV index are January, February, March, April, May and December (UV index 7).
The months with the lowest UV index are June, July, August, September, October and November (UV index 6).
Average cloud cover in September
Māhina, French Polynesia
- Average cloud cover in September: 47
The month with the most cloud cover is January (Cloud cover 50).
The month with the least cloud cover is April (Cloud cover 42).
Average visibility in September
Māhina, French Polynesia
- Average visibility in September: 10km
The months with the highest visibility are February, March, April, May, June, July, August, September, October and November (10km).
The months with the lowest visibility are January and December (9km).
