September weather forecast and climate
Rome, Italy

The sun rising above the Colosseum in Rome Italy
The sun rising above the Colosseum in Rome Italy
September, the first month of the autumn, in Rome, is still a warm month, with average temperature varying between 15.2°C (59.4°F) and 26.5°C (79.7°F).

Temperature

In September, the average high-temperature slightly decreases, from a tropical 30.6°C (87.1°F) in August, to a moderately hot 26.5°C (79.7°F). In Rome, the average low-temperature is 15.2°C (59.4°F).

Rainfall

In Rome, during September, the rain falls for 6.2 days and regularly aggregates up to 73.3mm (2.89") of precipitation. Throughout the year, there are 79.4 rainfall days, and 804.3mm (31.67") of precipitation is accumulated.

Daylight

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

Sunshine

In September, the average sunshine is 7.9h.

UV index

In September, the average daily maximum UV index is 6. A UV Index estimate of 6 to 7 represents a high threat to health from unsafe exposure to the UV radiation for average individuals.
Note: In September, the average maximum UV index of 6 translate into the following recommendations:
Take precautions and utilize sun safety practices. Protection against the skin and eye damage is required. 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.

What is the temperature in September in Rome?

The average high-temperature, in September, in Rome, Italy, is 26.5°C (79.7°F), while the average low-temperature is 15.2°C (59.4°F).

How much does it rain in Rome in September?

In Rome, Italy, during September, the rain falls for 6.2 days and regularly aggregates up to 73.3mm (2.89") of precipitation.

What is the average length of the day in September in Rome?

The average length of the day in September in Rome is 12.5h.

How many hours of sunshine does Rome have in September?

In Rome, Italy, the average sunshine in September is 7.9h.

What is the UV index intensity in September in Rome?

In September, the average daily maximum UV index in Rome is 6. A UV Index estimate of 6 to 7 represents a high hazard to health from the exposure to the Sun's UV radiation.
Average temperature in September - Rome, Italy
  • Average high temperature in September: 26.5°C

The warmest month (with the highest average high temperature) is August (30.6°C).
The month with the lowest average high temperature is January (11.9°C).

  • Average low temperature in September: 15.2°C

The month with the highest average low temperature is August (18.3°C).
The coldest month (with the lowest average low temperature) is January (3.1°C).

Average rainfall in September - Rome, Italy
  • Average rainfall in September: 73.3mm

The wettest month (with the highest rainfall) is November (115.4mm).
The driest month (with the least rainfall) is July (19.2mm).

Average rainfall days in September - Rome, Italy
  • Average rainfall days in September: 6.2 days

The month with the highest number of rainy days is November (9.7 days).
The month with the least rainy days is July (2.1 days).

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

The month with the longest days is June (Average daylight: 15.2h).
The month with the shortest days is December (Average daylight: 9.2h).

  • Average sunshine in September: 7.9h

The month with the most sunshine is July (Average sunshine: 10.7h).
The month with the least sunshine is December (Average sunshine: 3.6h).

Average UV index in September - Rome, Italy
  • Average UV index in September: 6

The month with the highest UV index is July (UV index 9).
The month with the lowest UV index is December (UV index 1).