September weather forecast
Matiti, French Polynesia

September

Weather in September

September presents a moderate increment in temperatures and increased wind gust speeds reaching up to 34.3 Kph. As the month progresses, noticeable changes include a rise in daylight hours and an increase in rainfall. The cloud cover and humidity levels persist from August. The weather during September holds a unique appeal with the cooling winds making the warmth pleasant.

Temperature

August and September bring Matiti's lowest average temperatures, reaching a high of 24.6°C (76.3°F).

Humidity

The average relative humidity in September is 79%.

Rainfall

In Matiti, in September, it is raining for 18.2 days, with typically 50mm (1.97") of accumulated precipitation. Throughout the year, there are 272.6 rainfall days, and 1577mm (62.09") of precipitation is accumulated.

Daylight

In Matiti, the average length of the day in September is 12h and 1min.
On the first day of the month, sunrise is at 06:03 and sunset at 17:50. On the last day of September, sunrise is at 05:39 and sunset at 17:54 -10.

Sunshine

In September, the average sunshine is 7h.

UV index

June through November, with an average maximum UV index of 6, are months with the lowest UV index. A UV Index of 6 to 7 symbolizes a high health hazard from unsafe exposure to UV radiation for the ordinary person.
Note: A maximum UV index of 6 in September translates into the following recommendations:
Inhibit overexposure. Warding off sun damage is of utmost importance. Avoid direct exposure to the Sun between 10 a.m. and 4 p.m., the peak period for UV radiation, noting that objects like parasols or canopies might not offer complete sun protection. Counter UV radiation's ill effects with clothing designed for sun safety and UV-resistant eyewear.

Frequently asked questions

What is the coldest time of year?
Matiti experiences lowest temperatures, averaging a high-temperature of 24.6°C (76.3°F) during August and September.
What is the average September temperature in Matiti?
The high-temperature, in September, in Matiti, records 24.6°C (76.3°F), while the low-temperature is 24°C (75.2°F). In April, the average heat index (a.k.a. 'apparent temperature', 'feels like'), which combines relative humidity and air temperature, is computed to be 30°C (86°F).
What is the average humidity in September?
In September, the average relative humidity is 79%.
How much does it rain in September?
In Matiti, in September, it is raining for 18.2 days, with typically 50mm (1.97") of accumulated precipitation.
How many hours of daylight does Matiti have in September?
In September, the average day length is 12h and 1min.
When is the sunrise / sunset in September?
On the first day of September, sunrise is at 06:03 and sunset at 17:50. On the last day of the month, sunrise is at 05:39 and sunset at 17:54 -10.
How many hours of sunshine does Matiti have in September?
In September, the average sunshine duration is 7h.
What are the months with the lowest UV index?
The months with the lowest UV index are June through November, with an average maximum UV index of 6.
How high is the UV index in September?
The average daily maximum UV index in September is 6. A UV Index estimate of 6 to 7 represents a high health risk from unprotected exposure to UV radiation.
Average high temperature
Average low temperature
Average wind speed
Average max. wind speed
Average wind speed gusts
Average humidity
Average rainfall
Average rainfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility
Average temperature in September - Matiti, French Polynesia
Average temperature in September
Matiti, 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 - Matiti, French Polynesia
Average pressure in September
Matiti, 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 - Matiti, French Polynesia
Average wind speed in September
Matiti, 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 - Matiti, French Polynesia
Average humidity in September
Matiti, 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 - Matiti, French Polynesia
Average rainfall in September
Matiti, 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 - Matiti, French Polynesia
Average rainfall days in September
Matiti, 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 daylight in September / Average sunshine in September - Matiti, French Polynesia
Average daylight in September /
Average sunshine in September
Matiti, 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 - Matiti, French Polynesia
Average sunshine days in September
Matiti, 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 - Matiti, French Polynesia
Average UV index in September
Matiti, 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 - Matiti, French Polynesia
Average cloud cover in September
Matiti, 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 - Matiti, French Polynesia
Average visibility in September
Matiti, 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).

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