September weather forecastViggiù, Italy
September
Weather in September
September, the first month of the autumn in Viggiù, is also an agreeable month, with an average temperature varying between 11.5°C (52.7°F) and 21°C (69.8°F).Temperature
September's arrival aligns with a minor decrease in average high-temperatures, from August's warm 25.9°C (78.6°F) to a pleasant 21°C (69.8°F). Throughout September, Viggiù witnesses a consistent average low-temperature of 11.5°C (52.7°F).Humidity
In September, the average relative humidity is 74%.Rainfall
In September, the rain falls for 15.4 days. Throughout September, 67mm (2.64") of precipitation is accumulated. Throughout the year, there are 172.1 rainfall days, and 1177mm (46.34") of precipitation is accumulated.Snowfall
In Viggiù, snow does not fall in April through September.Daylight
In Viggiù, the average length of the day in September is 12h and 32min.On the first day of the month, sunrise is at 06:45 and sunset at 20:02. On the last day of September, sunrise is at 07:22 and sunset at 19:06 CEST.
Sunshine
In Viggiù, the average sunshine in September is 9.6h.UV index
In Viggiù, the average daily maximum UV index in September is 4. A UV Index value of 3 to 5 symbolizes a moderate threat to health from exposure to the Sun's UV rays for ordinary individuals.Note: The maximum UV index of 4 during September leads to these instructions:
Act with care - Obligation to protect against skin and eye damage is highlighted. Midday Sun has the strongest UV rays, making it crucial to limit exposure and find shade. Loose clothes with a tight weave are optimal for safeguarding yourself against the Sun's rays.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Viggiù, Italy
- Average high temperature in September: 21°C
The warmest month (with the highest average high temperature) is July (26.3°C).
The month with the lowest average high temperature is January (4.8°C).
- Average low temperature in September: 11.5°C
The month with the highest average low temperature is August (15.2°C).
The coldest month (with the lowest average low temperature) is January (-0.9°C).
Average pressure in September
Viggiù, 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
Viggiù, Italy
- Average wind speed in September: 6.1km/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 (5.5km/h).
Average humidity in September
Viggiù, Italy
- Average humidity in September: 74%
The month with the highest relative humidity is November (79%).
The month with the lowest relative humidity is July (70%).
Average rainfall in September
Viggiù, Italy
- Average rainfall in September: 67mm
The wettest month (with the highest rainfall) is November (177mm).
The driest month (with the least rainfall) is January (31mm).
Average rainfall days in September
Viggiù, Italy
- Average rainfall days in September: 15.4 days
The months with the highest number of rainy days are June and July (20.2 days).
The month with the least rainy days is January (6.8 days).
Average snowfall in September
Viggiù, Italy
- Average snowfall in September: 0mm
The month with the highest snowfall is February (69mm).
The months with the least snowfall are April, May, June, July, August and September (0mm).
Average snowfall days in September
Viggiù, Italy
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (3.8 days).
The months with the least snowfall days are May, June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Viggiù, 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 30min).
The month with the least sunshine is November (Average sunshine: 5h and 18min).
Average sunshine days in September
Viggiù, Italy
- Average sunshine days in September: 11.8 days
The month with the most sunshine days is December (21.5 days).
The month with the least sunshine days is June (6 days).
Average UV index in September
Viggiù, Italy
- Average UV index in September: 4
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
Viggiù, Italy
- Average cloud cover in September: 28
The month with the most cloud cover is November (Cloud cover 42).
The month with the least cloud cover is July (Cloud cover 23).
Average visibility in September
Viggiù, 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).
