Weather in September
Temperature
The warmest period falls in July through September, when the average high-temperature reaches 25°C (77°F).Rainfall
In Bordeira, in September, during 3 rainfall days, 18mm (0.71") of precipitation is typically accumulated. Throughout the year, in Bordeira, there are 83 rainfall days, and 619mm (24.37") 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 in Bordeira.Note: Swimming in water at 21°C (69.8°F) is not a pleasurable experience for most. The task of managing breathing becomes more challenging as the water temperature descends from 21°C (69.8°F) to 15°C (59°F).
Daylight
In Bordeira, the average length of the day in September is 12h and 25min.On the first day of September in Bordeira, Portugal, sunrise is at 07:06 and sunset at 20:04. On the last day of the month, sunrise is at 07:30 and sunset at 19:20 WEST.
Sunshine
In Bordeira, the average sunshine in September is 9h.UV index
In Bordeira, Portugal, the average daily maximum UV index in September is 7. A UV Index estimate of 6 to 7 represents a high health vulnerability from exposure to the Sun's UV rays for the average person.Note: During September, 7 as the daily maximum UV index converts into the following advice:
Take precautions against overexposure. Protection against sun damage is needed. Avoid direct Sun exposure from 10 a.m. to 4 p.m., a period when UV radiation is most intense, and remember that not all shade structures provide full protection. To mitigate harm from sun exposure, pick sunglasses offering UVA and UVB defense.
Frequently asked questions
What month is the hottest in Bordeira?
What is the average September temperature in Bordeira?
How many days does it rain in September in Bordeira?
What are the months with the warmest sea water in Bordeira?
What is the sea water temperature in September in Bordeira?
What is the average length of the day in September in Bordeira?
What time are sunrise and sunset in September in Bordeira?
How long on average sun shines in September in Bordeira?
How high is the UV index in September in Bordeira?
Average temperature in September
Bordeira, Portugal
- Average high temperature in September: 25°C
The warmest months (with the highest average high temperature) are July, August and September (25°C).
The month with the lowest average high temperature is January (15°C).
- Average low temperature in September: 17°C
The months with the highest average low temperature are July, August and September (17°C).
The coldest month (with the lowest average low temperature) is January (9°C).
Average rainfall in September
Bordeira, Portugal
- Average rainfall in September: 18mm
The wettest month (with the highest rainfall) is December (103mm).
The driest month (with the least rainfall) is July (2mm).
Average rainfall days in September
Bordeira, Portugal
- Average rainfall days in September: 3 days
The month with the highest number of rainy days is December (12 days).
The months with the least rainy days are July and August (1 days).
Average sea temperature in September
Bordeira, 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).
Average daylight in September /
Average sunshine in September
Bordeira, Portugal
- Average daylight in September: 12h and 2min
The month with the longest days is June (Average daylight: 14h and 42min).
The month with the shortest days is December (Average daylight: 9h and 42min).
- Average sunshine in September: 9h
The months with the most sunshine are July and August (Average sunshine: 11h).
The months with the least sunshine are January and December (Average sunshine: 5h).
Average UV index in September
Bordeira, Portugal
- Average UV index in September: 7
The months with the highest UV index are June, July and August (UV index 9).
The months with the lowest UV index are January and December (UV index 2).
Bordeira, Portugal
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