September weather forecastBivio, Switzerland
September
Weather in September
September, the first month of the autumn in Bivio, is still a cool month, with an average temperature ranging between min 1.6°C (34.9°F) and max 10.9°C (51.6°F).Temperature
In September, the meteorological conditions change slightly, with the average high-temperature moving from a refreshing 15.3°C (59.5°F) in August to a cool 10.9°C (51.6°F). During September, Bivio's temperature falls to a steady low-temperature average of 1.6°C (34.9°F).Humidity
In September, the average relative humidity is 85%.Rainfall
In Bivio, in September, it is raining for 15.6 days, with typically 39mm (1.54") of accumulated precipitation. Throughout the year, there are 139.9 rainfall days, and 641mm (25.24") of precipitation is accumulated.Snowfall
Months with snowfall in Bivio are January through June, September through December. September is the first month it typically snows. Throughout September, in the average 1.2 snowfall days, it receives 33mm (1.3") of snow. In Bivio, during the entire year, snow falls for 97.2 days and aggregates up to 1956mm (77.01") of snow.Daylight
In September, the average length of the day in Bivio is 12h and 33min.On the first day of September, sunrise is at 06:42 and sunset at 20:00. On the last day of the month, sunrise is at 07:19 and sunset at 19:03 CEST.
Sunshine
In Bivio, Switzerland, the average sunshine in September is 7.8h.UV index
In September, the average daily maximum UV index in Bivio is 2. A UV Index estimate of 2, and below, represents a minimal health vulnerability from unsafe exposure to UV radiation for average individuals.Note: In September, the average maximum UV index of 2 translates into the following recommendations:
Despite the majority tolerating prolonged sun exposure, those with sensitive skin, infants, and children demand continual protection. Midday is when the Sun's radiation is strongest; avoid prolonged exposure during this time. Sunglasses that guard against UVA and UVB rays are pivotal in minimizing sun-induced ocular damage. Take into account! The reflection from snow can nearly double the Sun's UV radiation intensity.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Bivio, Switzerland
- Average high temperature in September: 10.9°C
The warmest month (with the highest average high temperature) is July (15.4°C).
The month with the lowest average high temperature is January (-4.4°C).
- Average low temperature in September: 1.6°C
The month with the highest average low temperature is August (5°C).
The coldest month (with the lowest average low temperature) is January (-13.9°C).
Average pressure in September
Bivio, Switzerland
- Average pressure in September: 1018mbar
The month with the highest atmospheric pressure is December (1020.6mbar).
The month with the lowest atmospheric pressure is April (1015.3mbar).
Average wind speed in September
Bivio, Switzerland
- Average wind speed in September: 7.8km/h
The windiest months (with the highest average wind speed) are February and December (9.9km/h).
The calmest month (with the lowest average wind speed) is August (7.5km/h).
Average humidity in September
Bivio, Switzerland
- Average humidity in September: 85%
The month with the highest relative humidity is April (94%).
The month with the lowest relative humidity is July (81%).
Average rainfall in September
Bivio, Switzerland
- Average rainfall in September: 39mm
The wettest month (with the highest rainfall) is November (84mm).
The driest month (with the least rainfall) is January (20mm).
Average rainfall days in September
Bivio, Switzerland
- Average rainfall days in September: 15.6 days
The month with the highest number of rainy days is July (22.6 days).
The month with the least rainy days is December (2.6 days).
Average snowfall in September
Bivio, Switzerland
- Average snowfall in September: 33mm
The month with the highest snowfall is November (492mm).
The months with the least snowfall are July and August (0mm).
Average snowfall days in September
Bivio, Switzerland
- Average snowfall days in September: 1.2 days
The month with the highest number of snowfall days is March (17 days).
The month with the least snowfall days is August (0 days).
Average daylight in September /
Average sunshine in September
Bivio, Switzerland
- 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 42min).
- Average sunshine in September: 7h and 48min
The month with the most sunshine is July (Average sunshine: 9h and 54min).
The month with the least sunshine is November (Average sunshine: 3h and 54min).
Average sunshine days in September
Bivio, Switzerland
- Average sunshine days in September: 11 days
The month with the most sunshine days is December (18.8 days).
The month with the least sunshine days is July (6.2 days).
Average UV index in September
Bivio, Switzerland
- Average UV index in September: 2
The months with the highest UV index are June, July and August (UV index 3).
The months with the lowest UV index are January, February, March, April, October and November (UV index 1).
Average cloud cover in September
Bivio, Switzerland
- Average cloud cover in September: 54
The month with the most cloud cover is April (Cloud cover 66).
The month with the least cloud cover is July (Cloud cover 47).
Average visibility in September
Bivio, Switzerland
- Average visibility in September: 7km
The month with the highest visibility is July (8km).
The month with the lowest visibility is April (5km).
