September weather forecastCollalbo, Italy
September
Weather in September
The first month of the autumn, September, is also an enjoyable month in Collalbo, Italy, with temperature in the range of an average high of 16.5°C (61.7°F) and an average low of 5.2°C (41.4°F).Temperature
As September arrives, Collalbo's weather displays a minor decrease in high-temperatures, transitioning from August's agreeable 20.8°C (69.4°F) to a comfortable 16.5°C (61.7°F). In the month of September, Collalbo records a consistent average low-temperature of 5.2°C (41.4°F).Humidity
The average relative humidity in September is 77%.Rainfall
In September, the rain falls for 13.5 days. Throughout September, 46mm (1.81") of precipitation is accumulated. In Collalbo, during the entire year, the rain falls for 143.2 days and collects up to 628mm (24.72") of precipitation.Snowfall
January through June, September through December are months with snowfall. September is the first month it typically snows. Throughout September, in the average 0.5 snowfall days, it receives 34mm (1.34") of snow. Throughout the year, there are 67 snowfall days, and 1416mm (55.75") of snow is accumulated.Daylight
The average length of the day in September is 12h and 33min.On the first day of September in Collalbo, sunrise is at 06:34 and sunset at 19:53. On the last day of the month, sunrise is at 07:12 and sunset at 18:55 CEST.
Sunshine
In September, the average sunshine in Collalbo is 10.2h.UV index
In September, the average daily maximum UV index is 3. A UV Index reading of 3 to 5 represents a moderate health risk from unsafe exposure to UV radiation for the ordinary person.Note: In September, the maximum UV index of 3 translates into these guidelines:
Be vigilant - A duty to shield skin and eyes from injury exists. Around midday, solar radiation is most harmful; hence, exposure should be limited. For effective sun eye protection, rely on sunglasses certified for UVA and UVB resistance. Foresee this! The reflection from snow can nearly double the intensity of UV radiation from the Sun.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Collalbo, Italy
- Average high temperature in September: 16.5°C
The warmest month (with the highest average high temperature) is July (21°C).
The month with the lowest average high temperature is January (-0.7°C).
- Average low temperature in September: 5.2°C
The month with the highest average low temperature is August (8.4°C).
The coldest month (with the lowest average low temperature) is January (-8.8°C).
Average pressure in September
Collalbo, Italy
- Average pressure in September: 1017.9mbar
The month with the highest atmospheric pressure is December (1020.3mbar).
The month with the lowest atmospheric pressure is May (1015.3mbar).
Average wind speed in September
Collalbo, Italy
- Average wind speed in September: 6.1km/h
The windiest month (with the highest average wind speed) is February (7.3km/h).
The calmest month (with the lowest average wind speed) is November (5.7km/h).
Average humidity in September
Collalbo, Italy
- Average humidity in September: 77%
The month with the highest relative humidity is February (85%).
The months with the lowest relative humidity are June and July (74%).
Average rainfall in September
Collalbo, Italy
- Average rainfall in September: 46mm
The wettest month (with the highest rainfall) is August (98mm).
The driest month (with the least rainfall) is January (16mm).
Average rainfall days in September
Collalbo, Italy
- Average rainfall days in September: 13.5 days
The month with the highest number of rainy days is July (19.3 days).
The month with the least rainy days is January (5.3 days).
Average snowfall in September
Collalbo, Italy
- Average snowfall in September: 34mm
The month with the highest snowfall is November (505mm).
The months with the least snowfall are July and August (0mm).
Average snowfall days in September
Collalbo, Italy
- Average snowfall days in September: 0.5 days
The months with the highest number of snowfall days are February and March (11.7 days).
The months with the least snowfall days are July and August (0 days).
Average daylight in September /
Average sunshine in September
Collalbo, Italy
- Average daylight in September: 12h and 30min
The month with the longest days is June (Average daylight: 15h and 48min).
The month with the shortest days is December (Average daylight: 8h and 36min).
- Average sunshine in September: 10h and 12min
The months with the most sunshine are June and July (Average sunshine: 11h and 18min).
The month with the least sunshine is November (Average sunshine: 6h and 0min).
Average sunshine days in September
Collalbo, Italy
- Average sunshine days in September: 12.7 days
The month with the most sunshine days is December (20.8 days).
The month with the least sunshine days is July (5.5 days).
Average UV index in September
Collalbo, Italy
- Average UV index in September: 3
The month with the highest UV index is July (UV index 5).
The months with the lowest UV index are January, February, March, April, October, November and December (UV index 2).
Average cloud cover in September
Collalbo, Italy
- Average cloud cover in September: 33
The month with the most cloud cover is November (Cloud cover 39).
The month with the least cloud cover is December (Cloud cover 28).
Average visibility in September
Collalbo, Italy
- Average visibility in September: 8km
The months with the highest visibility are June and July (9km).
The month with the lowest visibility is November (7km).
