September weather forecastLei, Italy
September
Weather in September
September, the first month of the autumn in Lei, is still a warm month, with an average temperature varying between 24.3°C (75.7°F) and 14.9°C (58.8°F).Temperature
The start of September involves a temperature drop, moving from a warm 29.9°C (85.8°F) in August to a still moderately hot 24.3°C (75.7°F). Throughout September, Lei's nights cool down to an average of 14.9°C (58.8°F).Humidity
In Lei, the average relative humidity in September is 70%.Rainfall
In September, the rain falls for 12.1 days. Throughout September, 35mm (1.38") of precipitation is accumulated. Throughout the year, there are 153.4 rainfall days, and 531mm (20.91") of precipitation is accumulated.Snowfall
In Lei, snow does not fall in May through November.Daylight
In September, the average length of the day in Lei is 12h and 28min.On the first day of the month, sunrise is at 06:52 and sunset at 19:56. On the last day of September, sunrise is at 07:20 and sunset at 19:08 CEST.
Sunshine
The average sunshine in September in Lei is 10h.UV index
In Lei, the average daily maximum UV index in September is 5. A UV Index value of 3 to 5 symbolizes a moderate health risk from unprotected exposure to Sun's UV rays for ordinary individuals.Note: During September, 5 as the daily maximum UV index converts into the following advice:
Exercise prevention - Warding off sunburn is urged. Direct exposure to the Sun during its peak hours around mid-day should be minimized for safety. Limit sun-induced ocular harm with sunglasses that feature UVA and UVB filtration.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Lei, Italy
- Average high temperature in September: 24.3°C
The warmest month (with the highest average high temperature) is August (29.9°C).
The month with the lowest average high temperature is January (9.9°C).
- Average low temperature in September: 14.9°C
The month with the highest average low temperature is August (17.8°C).
The coldest month (with the lowest average low temperature) is February (2.5°C).
Average pressure in September
Lei, Italy
- Average pressure in September: 1015.6mbar
The month with the highest atmospheric pressure is December (1018.8mbar).
The month with the lowest atmospheric pressure is April (1014mbar).
Average wind speed in September
Lei, Italy
- Average wind speed in September: 8.1km/h
The windiest month (with the highest average wind speed) is March (12km/h).
The calmest month (with the lowest average wind speed) is August (6.4km/h).
Average humidity in September
Lei, Italy
- Average humidity in September: 70%
The month with the highest relative humidity is January (85%).
The months with the lowest relative humidity are July and August (56%).
Average rainfall in September
Lei, Italy
- Average rainfall in September: 35mm
The wettest month (with the highest rainfall) is November (75mm).
The driest month (with the least rainfall) is July (18mm).
Average rainfall days in September
Lei, Italy
- Average rainfall days in September: 12.1 days
The month with the highest number of rainy days is April (16.8 days).
The month with the least rainy days is July (6 days).
Average snowfall in September
Lei, Italy
- Average snowfall in September: 0mm
The month with the highest snowfall is January (96mm).
The months with the least snowfall are May, June, July, August, September, October and November (0mm).
Average snowfall days in September
Lei, Italy
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is February (5.3 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
Lei, Italy
- Average daylight in September: 12h and 30min
The month with the longest days is June (Average daylight: 15h and 0min).
The month with the shortest days is December (Average daylight: 9h and 24min).
- Average sunshine in September: 10h and 0min
The month with the most sunshine is August (Average sunshine: 11h and 54min).
The month with the least sunshine is January (Average sunshine: 5h and 24min).
Average sunshine days in September
Lei, Italy
- Average sunshine days in September: 14.8 days
The month with the most sunshine days is August (22.4 days).
The month with the least sunshine days is January (9.9 days).
Average UV index in September
Lei, Italy
- Average UV index in September: 5
The month with the highest UV index is July (UV index 7).
The month with the lowest UV index is December (UV index 2).
Average cloud cover in September
Lei, Italy
- Average cloud cover in September: 21
The month with the most cloud cover is January (Cloud cover 47).
The month with the least cloud cover is August (Cloud cover 9).
Average visibility in September
Lei, Italy
- Average visibility in September: 10km
The months with the highest visibility are June, July, August and September (10km).
The months with the lowest visibility are January, November and December (8km).
