September weather forecast
Sant Lluís, Spain

The first month of the autumn, September, is still a warm month in Sant Lluís, Spain, with temperature in the range of an average low of 18°C (64.4°F) and an average high of 26°C (78.8°F).

Temperature

September's arrival shows an average high-temperature of a still moderately hot 26°C (78.8°F), hardly different from the previous month. Throughout September, Sant Lluís's nights cool down to an average of 18°C (64.4°F).

Rainfall

In Sant Lluís, in September, it is raining for 8 days, with typically 61mm (2.4") of accumulated precipitation. In Sant Lluís, during the entire year, the rain falls for 126 days and collects up to 607mm (23.9") of precipitation.

Sea temperature

In Sant Lluís, the average seawater temperature in September is 24°C (75.2°F).
Note: Swimming in 24°C (75.2°F) can be enjoyable or not, depending on how you feel about the cold and conditions such as sunshine, wind, and the day's temperature. FYI: Olympic standards dictate waters of 25°C (77°F) to 28°C (82.4°F).

Daylight

In Sant Lluís, the average length of the day in September is 12h and 27min.
On the first day of the month, sunrise is at 07:11 and sunset at 20:14. On the last day of September, in Sant Lluís, sunrise is at 07:38 and sunset at 19:26 CEST.

Sunshine

In September, the average sunshine is 8h.

UV index

In Sant Lluís, Spain, the average daily maximum UV index in September is 6. A UV Index of 6 to 7 symbolizes a high health vulnerability from unprotected exposure to Sun's UV rays for average individuals.
Note: In September, the maximum UV index of 6 suggests this advice:
Shield from overexposure. Defense against sun-related harm is required. Stay out of direct sunlight between 10 a.m. and 4 p.m., when UV radiation is most intense, and remember that not all shade structures provide complete protection. Using UVA and UVB-protective sunglasses and sun-protective clothing is effective against UV radiation. Attention! UV strength is notably upped by the reflection of sand and water.