September weather forecast
Vilamoura, Portugal

The beautiful brown sandy beach behind the scenic city of Vilamoura in Portugal
The beautiful brown sandy beach behind the scenic city of Vilamoura in Portugal

Weather in September

The first month of the autumn, September, is also a moderately hot month in Vilamoura, Portugal, with average temperature fluctuating between 17°C (62.6°F) and 27°C (80.6°F).

Temperature

In Vilamoura, the average high-temperature is practically the same as in August - a still moderately hot 27°C (80.6°F). In September, in Vilamoura, the average low-temperature is 17°C (62.6°F).

Rainfall

In Vilamoura, it is raining for 2 days, with typically 15mm (0.59") of accumulated precipitation. Throughout the year, in Vilamoura, there are 77 rainfall days, and 557mm (21.93") of precipitation is accumulated.

Sea temperature

August and September, with an average sea temperature of 21°C (69.8°F), are months with the warmest seawater.
Note: For swimming, a surface water temperature of 21°C (69.8°F) is not enjoyable for the majority. It is not considered safe, as controlling breathing becomes progressively more difficult as water temperature decreases below 21°C (69.8°F).

Daylight

In September, the average length of the day is 12.4h.

Sunshine

The average sunshine in September is 9h.

UV index

In Vilamoura, the average daily maximum UV index is 7. A UV Index value of 6 to 7 symbolizes a high threat to health from unsafe exposure to the UV radiation for the average person.
Note: The daily maximum UV index of 7 interpret into the following advice:
Take precautions and adopt sun safety practices. Protection against sunburn is obliged. Seek shade and minimize exposure to direct Sun in a period between 10 a.m. and 4 p.m. when UV radiation is most intense; keep in mind that shade structures like parasols or canopies do not provide perfect sun protection. On bright days sunglasses that block both UVA and UVB rays should be worn. A hat with a wide brim is extremely helpful, as it can prevent roughly 50% of UV radiation from reaching the eyes.
[Resources]

FAQ

How much does it rain in Vilamoura in September?

In September, in Vilamoura, the rain falls for 2 days. Throughout September, 15mm (0.59") of precipitation is accumulated.

When is the sea warmest in Vilamoura?

Months with the warmest seawater in Vilamoura, Portugal, are August and September, with an average sea temperature of 21°C (69.8°F).

What is the sea water temperature in September in Vilamoura?

In Vilamoura, Portugal, the average seawater temperature in September is 21°C (69.8°F). For swimming, a surface water temperature of 21°C (69.8°F) is not enjoyable for the majority. It is not considered safe, as controlling breathing becomes progressively more difficult as water temperature decreases below 21°C (69.8°F).

How many hours of daylight does Vilamoura have in September?

The average length of the day in September in Vilamoura, Portugal, is 12.4h.

How long on average sun shines in September in Vilamoura?

In September, the average sunshine is 9h.

What is the UV index reading in September in Vilamoura?

In September, the average daily maximum UV index in Vilamoura is 7. A UV Index estimate of 6 to 7 represents a high hazard to health from the exposure to the Sun's UV rays.

Average temperature in September
Vilamoura, Portugal

Average temperature in September - Vilamoura, Portugal
  • Average high temperature in September: 27°C

The warmest months (with the highest average high temperature) are July and August (28°C).
Months with the lowest average high temperature are January, February and December (16°C).

  • Average low temperature in September: 17°C

Months with the highest average low temperature are July, August and September (17°C).
The coldest months (with the lowest average low temperature) are January and February (8°C).

[Resources]

Average rainfall in September
Vilamoura, Portugal

Average rainfall in September - Vilamoura, Portugal
  • Average rainfall in September: 15mm

The wettest month (with the highest rainfall) is December (100mm).
The driest months (with the least rainfall) are July and August (2mm).

[Resources]

Average rainfall days in September
Vilamoura, Portugal

Average rainfall days in September - Vilamoura, Portugal
  • Average rainfall days in September: 2 days

The month with the highest number of rainy days is December (12 days).
Months with the least rainy days are July and August (1 days).

[Resources]

Average sea temperature in September
Vilamoura, Portugal

Average sea temperature in September - Vilamoura, Portugal
  • Average sea temperature in September: 21°C

The best months for swimming (with the highest average sea temperature) are August and September (21°C).
The coldest month (with the lowest average sea temperature) is February (15°C).

[Resources]

Average daylight in September /
Average sunshine in September
Vilamoura, Portugal

Average daylight in September / Average sunshine in September - Vilamoura, Portugal
  • Average daylight in September: 12.4h

The month with the longest days is June (Average daylight: 14.7h).
The month with the shortest days is December (Average daylight: 9.7h).

  • Average sunshine in September: 9h

The month with the most sunshine is July (Average sunshine: 12h).
Months with the least sunshine are January and December (Average sunshine: 5).

[Resources]

Average UV index in September
Vilamoura, Portugal

Average UV index in September - Vilamoura, Portugal
  • Average UV index in September: 7

Months with the highest UV index are June, July and August (UV index 9).
Months with the lowest UV index are January and December (UV index 2).

[Resources]

Weather forecast for your location

1. Click Locate me button
2. Allow the app to use your location
* you will be automatically redirected to the weather forecast for your location