September weather forecast
Porto Cervo, Italy

The first month of the autumn, September, is still a warm month in Porto Cervo, Italy, with temperature in the range of an average low of 17°C (62.6°F) and an average high of 26°C (78.8°F).

Temperature

September's onset corresponds with a subtle shift in the average high-temperature, slightly moving from a warm 29°C (84.2°F) in August to a still moderately hot 26°C (78.8°F). Porto Cervo reports an average low-temperature of 17°C (62.6°F) during the nights of September.

Rainfall

In September, in Porto Cervo, the rain falls for 8 days. Throughout September, 31mm (1.22") of precipitation is accumulated. In Porto Cervo, during the entire year, the rain falls for 133 days and collects up to 525mm (20.67") of precipitation.

Sea temperature

In Porto Cervo, in September, the average water temperature is 23.6°C (74.5°F).
Note: Individual preferences to cold, influenced by conditions such as sunshine, wind, and surrounding temperature, play a part in the comfort of swimming in 23.6°C (74.5°F) waters. (As an aside, Olympic swimming standards dictate water temperatures from 25°C (77°F) to 28°C (82.4°F).)

Daylight

In Porto Cervo, the average length of the day in September is 12h and 28min.
On the first day of the month, sunrise is at 06:48 and sunset at 19:54. On the last day of September, in Porto Cervo, sunrise is at 07:17 and sunset at 19:05 CEST.

Sunshine

In September, the average sunshine in Porto Cervo is 8h.

UV index

In Porto Cervo, Italy, the average daily maximum UV index in September is 6. A UV Index of 6 to 7 symbolizes a high health hazard from unsafe exposure to UV radiation for ordinary individuals.
Note: The maximum daily UV index of 6 in September converts into the following recommendations:
Continue precautions and advocate sun safety advice. Deterrence of sunburn is indispensable. UV radiation from the Sun is most intense between 10 a.m. and 4 p.m. Try to avoid direct sunlight during this period. A hat with a broad brim is indispensable, filtering out up to half of UV rays. Attention! The combination of sand and water reflections enhances UV ray intensity.