September weather forecastCollelongo, Italy
September
Weather in September
The first month of the autumn, September, is also an agreeable month in Collelongo, Italy, with temperature in the range of an average low of 10.1°C (50.2°F) and an average high of 21.5°C (70.7°F).Temperature
During the transition into September, Collelongo observes a decrease in the average high-temperature, falling from a moderately hot 27°C (80.6°F) in August to a pleasant 21.5°C (70.7°F). Throughout September, an average low-temperature of 10.1°C (50.2°F) is experienced in Collelongo.Humidity
The average relative humidity in September is 73%.Rainfall
In Collelongo, in September, during 12.8 rainfall days, 44mm (1.73") of precipitation is typically accumulated. In Collelongo, Italy, during the entire year, the rain falls for 178.9 days and collects up to 718mm (28.27") of precipitation.Snowfall
In Collelongo, snow does not fall in May through October.Daylight
The average length of the day in September is 12h and 29min.On the first day of the month, sunrise is at 06:31 and sunset at 19:39. On the last day of September, in Collelongo, sunrise is at 07:02 and sunset at 18:48 CEST.
Sunshine
In September, the average sunshine in Collelongo is 10.2h.UV index
In September, the average daily maximum UV index is 4. A UV Index reading of 3 to 5 represents a moderate threat to health from unprotected exposure to Sun's UV rays for average individuals.Note: In September, an average UV index of 4 transforms into the following instructions:
Make use of precautions - Shielding skin and eyes from injury is a requirement. The solar radiation is most powerful near the mid-day, so the exposure to the direct Sun should be reduced accordingly. For a sun-safe wardrobe, go for clothes that are tightly woven and generously sized.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Collelongo, Italy
- Average high temperature in September: 21.5°C
The warmest month (with the highest average high temperature) is August (27°C).
The month with the lowest average high temperature is January (5.9°C).
- Average low temperature in September: 10.1°C
The month with the highest average low temperature is August (13.4°C).
The coldest month (with the lowest average low temperature) is February (-0.9°C).
Average pressure in September
Collelongo, Italy
- Average pressure in September: 1015.6mbar
The month with the highest atmospheric pressure is December (1018.5mbar).
The months with the lowest atmospheric pressure are April and July (1014mbar).
Average wind speed in September
Collelongo, Italy
- Average wind speed in September: 6.3km/h
The windiest month (with the highest average wind speed) is February (8.8km/h).
The calmest month (with the lowest average wind speed) is August (5.6km/h).
Average humidity in September
Collelongo, Italy
- Average humidity in September: 73%
The month with the highest relative humidity is November (84%).
The month with the lowest relative humidity is August (64%).
Average rainfall in September
Collelongo, Italy
- Average rainfall in September: 44mm
The wettest month (with the highest rainfall) is November (91mm).
The driest month (with the least rainfall) is October (33mm).
Average rainfall days in September
Collelongo, Italy
- Average rainfall days in September: 12.8 days
The month with the highest number of rainy days is May (19.9 days).
The month with the least rainy days is August (10.4 days).
Average snowfall in September
Collelongo, Italy
- Average snowfall in September: 0mm
The month with the highest snowfall is February (106mm).
The months with the least snowfall are May, June, July, August, September and October (0mm).
Average snowfall days in September
Collelongo, Italy
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (6.1 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).
Average daylight in September /
Average sunshine in September
Collelongo, Italy
- Average daylight in September: 12h and 30min
The month with the longest days is June (Average daylight: 15h and 12min).
The month with the shortest days is December (Average daylight: 9h and 12min).
- Average sunshine in September: 10h and 12min
The month with the most sunshine is August (Average sunshine: 11h and 36min).
The month with the least sunshine is January (Average sunshine: 5h and 12min).
Average sunshine days in September
Collelongo, Italy
- Average sunshine days in September: 15.7 days
The months with the most sunshine days are August and October (16.9 days).
The month with the least sunshine days is April (8.7 days).
Average UV index in September
Collelongo, Italy
- Average UV index in September: 4
The month with the highest UV index is July (UV index 6).
The months with the lowest UV index are January, February, November and December (UV index 2).
Average cloud cover in September
Collelongo, Italy
- Average cloud cover in September: 30
The month with the most cloud cover is January (Cloud cover 49).
The month with the least cloud cover is August (Cloud cover 17).
Average visibility in September
Collelongo, Italy
- Average visibility in September: 9km
The month with the highest visibility is August (10km).
The months with the lowest visibility are January, February, October, November and December (8km).
