September weather forecastOsnago, Italy
September
Weather in September
The first month of the autumn, September, is still a warm month in Osnago, Italy, with temperature in the range of an average low of 14.3°C (57.7°F) and an average high of 23.3°C (73.9°F).Temperature
With the onset of September, Osnago's average high-temperature slightly adjusts, moderately receding from August's 28.2°C (82.8°F) to a still moderately hot 23.3°C (73.9°F). In the month of September, Osnago witnesses a consistent average low-temperature of 14.3°C (57.7°F).Humidity
In Osnago, the average relative humidity in September is 72%.Rainfall
In September, the rain falls for 14.6 days. Throughout September, 81mm (3.19") of precipitation is accumulated. Throughout the year, there are 162.3 rainfall days, and 972mm (38.27") of precipitation is accumulated.Snowfall
In Osnago, snow does not fall in April through October.Daylight
The average length of the day in September in Osnago, Italy, is 12h and 32min.On the first day of the month, sunrise is at 06:44 and sunset at 20:00. On the last day of September, sunrise is at 07:20 and sunset at 19:04 CEST.
Sunshine
In Osnago, the average sunshine in September is 9.6h.UV index
The average daily maximum UV index in September in Osnago is 5. A UV Index of 3 to 5 symbolizes a moderate health risk from exposure to the Sun's UV rays for average individuals.Note: The daily high UV index of 5 in September translates into this advice:
Prioritize safety - The need to safeguard skin and eyes from harm is emphasized. To avoid the Sun's strongest rays, limit exposure around the mid-day period. Using UVA and UVB-protective sunglasses and sun-protective clothing is effective against UV radiation.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Osnago, Italy
- Average high temperature in September: 23.3°C
The warmest month (with the highest average high temperature) is July (28.3°C).
The month with the lowest average high temperature is January (5.8°C).
- Average low temperature in September: 14.3°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 (0.9°C).
Average pressure in September
Osnago, Italy
- Average pressure in September: 1017.1mbar
The month with the highest atmospheric pressure is December (1020mbar).
The months with the lowest atmospheric pressure are April and May (1014.7mbar).
Average wind speed in September
Osnago, Italy
- Average wind speed in September: 5.8km/h
The windiest month (with the highest average wind speed) is April (7km/h).
The calmest months (with the lowest average wind speed) are November and December (5.6km/h).
Average humidity in September
Osnago, Italy
- Average humidity in September: 72%
The month with the highest relative humidity is November (79%).
The months with the lowest relative humidity are July and August (69%).
Average rainfall in September
Osnago, Italy
- Average rainfall in September: 81mm
The wettest month (with the highest rainfall) is August (141mm).
The driest month (with the least rainfall) is January (21mm).
Average rainfall days in September
Osnago, Italy
- Average rainfall days in September: 14.6 days
The month with the highest number of rainy days is July (20.3 days).
The month with the least rainy days is January (6 days).
Average snowfall in September
Osnago, Italy
- Average snowfall in September: 0mm
The month with the highest snowfall is February (19mm).
The months with the least snowfall are April, May, June, July, August, September and October (0mm).
Average snowfall days in September
Osnago, Italy
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is February (1.3 days).
The months with the least snowfall days are April, May, June, July, August, September and October (0 days).
Average daylight in September /
Average sunshine in September
Osnago, Italy
- Average daylight in September: 12h and 30min
The month with the longest days is June (Average daylight: 15h and 36min).
The month with the shortest days is December (Average daylight: 8h and 48min).
- Average sunshine in September: 9h and 36min
The month with the most sunshine is July (Average sunshine: 11h and 24min).
The month with the least sunshine is November (Average sunshine: 5h and 0min).
Average sunshine days in September
Osnago, Italy
- Average sunshine days in September: 12.4 days
The month with the most sunshine days is January (23.8 days).
The month with the least sunshine days is June (6.8 days).
Average UV index in September
Osnago, Italy
- Average UV index in September: 5
The months with the highest UV index are June and 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
Osnago, Italy
- Average cloud cover in September: 28
The month with the most cloud cover is November (Cloud cover 47).
The month with the least cloud cover is July (Cloud cover 22).
Average visibility in September
Osnago, Italy
- Average visibility in September: 9km
The month with the highest visibility is June (10km).
The months with the lowest visibility are January, February, March, April, May, July, August, September, October, November and December (9km).





