Capri
Italy
Long-term weather forecast
Long-term weather forecast

September weather forecast and climate
Capri, Italy

Ships on the clear waters with the Faraglioni stone rocks in the Giardini di Augusto in Capri, Italy
Ships on the clear waters with the Faraglioni stone rocks in the Giardini di Augusto in Capri, Italy
The first month of the autumn, September, is also a moderately hot month in Capri, Italy, with average temperature varying between 25°C (77°F) and 16°C (60.8°F).

Temperature

In Capri, the average high-temperature slightly decreases, from a moderately hot 28°C (82.4°F) in August, to a still warm 25°C (77°F). The average low-temperature, in Capri, is 16°C (60.8°F).

Rainfall

In Capri, it is raining for 8 days, with typically 57mm (2.2") of accumulated precipitation. Throughout the year, in Capri, there are 130 rainfall days, and 762mm (30") of precipitation is accumulated.

Sea temperature

In Capri, the average seawater temperature is 24.8°C (76.6°F). Depending on a person's sensitivity to cold, with regards to sunshine, wind, and air temperature, a quick swim in 24.8°C (76.6°F) water may be enjoyable. (FYI: The official water temperature required for the Olympic swimming competition is 25°C (77°F) to 28°C (82.4°F).)

Daylight

In Capri, the average length of the day is 12.5h.

Sunshine

The average sunshine in Capri is 8h.

UV index

The average daily maximum UV index in September is 6. A UV Index reading of 6 to 7 represents a high health hazard from the exposure to the Sun's UV rays for the ordinary person.
The average daily UV index of 6 transform into the following instructions:
Take precautions against overexposure. Protection against sun damage is needed. 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. Sun-protective clothing, a long-sleeved shirt and pants, a wide-brimmed hat, and UVA and UVB-blocking sunglasses are particularly helpful in blocking UV radiation's harmful effects. Beware! The reflection of water and sand dramatically increases exposure to the UV rays.

What is the temperature in September in Capri?

In September, in Capri, the average high-temperature is 25°C (77°F), and the average low-temperature is 16°C (60.8°F).

How many days does it rain in September in Capri?

In Capri, Italy, in September, it is raining for 8 days, with typically 57mm (2.2") of accumulated precipitation.

What is the water temperature in September in Capri?

In Capri, the average seawater temperature in September is 24.8°C (76.6°F). A person's cold intolerance, with sunshine, wind, and air temperature, are essential factors for enjoying swimming in 24.8°C (76.6°F) water.

How many hours of daylight does Capri have in September?

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

How long on average sun shines in September in Capri?

In September, the average sunshine is 8h.

What is the UV index intensity in September in Capri?

In Capri, the average daily maximum UV index in September is 6. A UV Index reading of 6 to 7 represents a high health risk from unsafe exposure to the Sun's UV rays.
Average temperature in September - Capri, Italy
  • Average high temperature in September: 25°C

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 (12°C).

  • Average low temperature in September: 16°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 (5°C).

Average rainfall in September - Capri, Italy
  • Average rainfall in September: 57mm

The wettest month (with the highest rainfall) is November (120mm).
Driest months (with the lowest rainfall) are June and July (23mm).

Average rainfall days in September - Capri, Italy
  • Average rainfall days in September: 8 days

Months with the highest number of rainy days are November and December (15 days).
The month with the lowest number of rainy days is July (4 days).

Average sea temperature in September - Capri, Italy
  • Average sea temperature in September: 24.8°C

The best month for swimming (with the highest average sea temperature) is August (26°C).
The coldest month (with the lowest average sea temperature) is February (13.9°C).

Average daylight in September / Average sunshine in September - Capri, Italy
  • Average daylight in September: 12.5h

The month with the longest days is June (Average daylight: 15h).
The month with shortest days is December (Average daylight: 9.3h).

  • Average sunshine in September: 8h

Months with most sunshine are July and August (Average sunshine: 10h).
Months with least sunshine are January, February, November and December (Average sunshine: 4).

Average UV index in September - Capri, Italy
  • 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).