September weather forecastCernobbio, Italy
September
Weather in September
September, the first month of the autumn in Cernobbio, is also an agreeable month, with an average temperature varying between 20.6°C (69.1°F) and 10.9°C (51.6°F).Temperature
Cernobbio's weather in September involves a mild decrease in the average high-temperature, moving down slightly from August's warm 25.2°C (77.4°F) to a pleasant 20.6°C (69.1°F). The average low-temperature, in September, in Cernobbio, is a cool 10.9°C (51.6°F).Humidity
In September, the average relative humidity is 75%.Rainfall
In Cernobbio, during September, the rain falls for 16.2 days and regularly aggregates up to 75mm (2.95") of precipitation. Throughout the year, in Cernobbio, there are 172.9 rainfall days, and 1265mm (49.8") of precipitation is accumulated.Snowfall
In Cernobbio, snow does not fall in June through September.Daylight
The average length of the day in September is 12h and 32min.On the first day of September, sunrise is at 06:45 and sunset at 20:01. On the last day of the month, sunrise is at 07:21 and sunset at 19:05 CEST.
Sunshine
In September, the average sunshine in Cernobbio is 9.6h.UV index
In Cernobbio, the average daily maximum UV index in September is 4. A UV Index value of 3 to 5 symbolizes a medium vulnerability from unsafe exposure to UV radiation for the average person.Note: In September, the maximum UV index of 4 suggests these recommendations:
Ensure safety - Imperative it is to shield skin and eyes from damage. The best time to avoid the Sun's harmful UV radiation is during midday when it's most potent. Sun-related eye harm can be minimized with proper sunglasses offering UVA and UVB coverage.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Cernobbio, Italy
- Average high temperature in September: 20.6°C
The warmest month (with the highest average high temperature) is July (25.6°C).
The month with the lowest average high temperature is January (4.7°C).
- Average low temperature in September: 10.9°C
The month with the highest average low temperature is August (14.6°C).
The coldest month (with the lowest average low temperature) is January (-1.3°C).
Average pressure in September
Cernobbio, Italy
- Average pressure in September: 1017.5mbar
The month with the highest atmospheric pressure is December (1020.3mbar).
The month with the lowest atmospheric pressure is April (1014.9mbar).
Average wind speed in September
Cernobbio, Italy
- Average wind speed in September: 6.2km/h
The windiest month (with the highest average wind speed) is March (6.9km/h).
The calmest month (with the lowest average wind speed) is November (5.6km/h).
Average humidity in September
Cernobbio, Italy
- Average humidity in September: 75%
The month with the highest relative humidity is November (79%).
The month with the lowest relative humidity is July (70%).
Average rainfall in September
Cernobbio, Italy
- Average rainfall in September: 75mm
The wettest month (with the highest rainfall) is November (181mm).
The driest month (with the least rainfall) is January (36mm).
Average rainfall days in September
Cernobbio, Italy
- Average rainfall days in September: 16.2 days
The month with the highest number of rainy days is June (21.6 days).
The month with the least rainy days is January (5 days).
Average snowfall in September
Cernobbio, Italy
- Average snowfall in September: 0mm
The month with the highest snowfall is February (402mm).
The months with the least snowfall are June, July, August and September (0mm).
Average snowfall days in September
Cernobbio, Italy
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is February (11.2 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Cernobbio, Italy
- Average daylight in September: 12h and 30min
The month with the longest days is June (Average daylight: 15h and 42min).
The month with the shortest days is December (Average daylight: 8h and 42min).
- 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 18min).
Average sunshine days in September
Cernobbio, Italy
- Average sunshine days in September: 10.9 days
The month with the most sunshine days is January (19.3 days).
The month with the least sunshine days is June (4.4 days).
Average UV index in September
Cernobbio, Italy
- Average UV index in September: 4
The month with the highest UV index is June (UV index 6).
The months with the lowest UV index are January, February, November and December (UV index 2).
Average cloud cover in September
Cernobbio, Italy
- Average cloud cover in September: 28
The month with the most cloud cover is November (Cloud cover 43).
The month with the least cloud cover is July (Cloud cover 23).
Average visibility in September
Cernobbio, Italy
- Average visibility in September: 9km
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (9km).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (9km).
