Porto-Vecchio
France
Long-term weather forecast
Long-term weather forecast

September weather forecast and climate
Porto-Vecchio, France

September, the first month of the autumn, in Porto-Vecchio, is also a moderately hot month, with average temperature fluctuating between 24°C (75.2°F) and 17°C (62.6°F).

Temperature

In Porto-Vecchio, the average high-temperature slightly decreases, from 27°C (80.6°F) in August, to a still warm 24°C (75.2°F). The average low-temperature, in September, is 17°C (62.6°F).

Rainfall

In Porto-Vecchio, in September, during 7 rainfall days, 39mm (1.5") of precipitation is typically accumulated. Throughout the year, there are 124 rainfall days, and 592mm (23.3") of precipitation is accumulated.

Sea temperature

In Porto-Vecchio, France, the average seawater temperature is 23.3°C (73.9°F).
Note: A person's cold intolerance, with sunshine, wind, and air temperature, are essential factors for enjoying swimming in 23.3°C (73.9°F) water. (FYI: The Olympic swimming competition requires a water temperature between 25°C (77°F) and 28°C (82.4°F).)

Daylight

In Porto-Vecchio, France, the average length of the day is 12.5h.

Sunshine

In Porto-Vecchio, the average sunshine is 8h.

UV index

The average daily maximum UV index in September is 6. A UV Index value of 6 to 7 symbolizes a high threat to health from the exposure to the Sun's UV radiation for the average person.
Note: The average daily UV index of 6 transform into the following instructions:
Take precautions against overexposure. Fair-skinned people may get burned in less than 20 minutes. The Sun's UV radiation is most powerful between 10 a.m. and 4 p.m. To the extent possible, limit exposure to the direct sun during these hours. A wide-brim hat offers excellent sun protection for eyes, ears, face, and neck. Sunglasses with UVA and UVB protection significantly reduce eye damage from sun exposure. Tightly woven, loose-fitting clothes provide additional protection from the Sun. Beware! The reflection of water and sand dramatically increases exposure to the UV rays.

What is the temperature in September in Porto-Vecchio?

The average high-temperature, in September, is 24°C (75.2°F), while the average low-temperature is 17°C (62.6°F).

How many days does it rain in September in Porto-Vecchio?

In September, in Porto-Vecchio, the rain falls for 7 days. Throughout September, 39mm (1.5") of precipitation is accumulated.

How warm is the water in September in Porto-Vecchio?

In Porto-Vecchio, the average seawater temperature in September is 23.3°C (73.9°F). Depending on a person's sensitivity to cold, with regards to sunshine, wind, and air temperature, a quick swim in 23.3°C (73.9°F) water may be enjoyable.

How many hours of daylight does Porto-Vecchio have in September?

The average length of the day in September is 12.5h.

How long on average sun shines in September in Porto-Vecchio?

The average sunshine in September is 8h.

What is the UV index reading in September in Porto-Vecchio?

In Porto-Vecchio, France, the average daily maximum UV index in September is 6. A UV Index of 6 to 7 symbolizes a high hazard to health from unprotected exposure to the UV radiation.
Average temperature in September - Porto-Vecchio, France
  • Average high temperature in September: 24°C

The warmest month (with the highest average high temperature) is August (27°C).
The month with the lowest average high temperature is January (12°C).

  • Average low temperature in September: 17°C

The month with the highest average low temperature is August (19°C).
Coldest months (with the lowest average low temperature) are January and February (6°C).

Average rainfall in September - Porto-Vecchio, France
  • Average rainfall in September: 39mm

The wettest month (with the highest rainfall) is November (83mm).
The driest month (with the lowest rainfall) is July (9mm).

Average rainfall days in September - Porto-Vecchio, France
  • Average rainfall days in September: 7 days

The month with the highest number of rainy days is December (15 days).
The month with the lowest number of rainy days is July (3 days).

Average sea temperature in September - Porto-Vecchio, France
  • Average sea temperature in September: 23.3°C

The best month for swimming (with the highest average sea temperature) is August (24.3°C).
The coldest month (with the lowest average sea temperature) is February (13.4°C).

Average daylight in September / Average sunshine in September - Porto-Vecchio, France
  • Average daylight in September: 12.5h

The month with the longest days is June (Average daylight: 15.2h).
The month with shortest days is December (Average daylight: 9.2h).

  • Average sunshine in September: 8h

The month with most sunshine is July (Average sunshine: 11h).
Months with least sunshine are January and December (Average sunshine: 4).

Average UV index in September - Porto-Vecchio, France
  • Average UV index in September: 6

Months with the highest UV index are June and July (UV index 9).
The month with the lowest UV index is December (UV index 1).