September weather forecastBilten, Switzerland
September
Weather in September
The first month of the autumn, September, is also an enjoyable month in Bilten, Switzerland, with an average temperature ranging between max 16.9°C (62.4°F) and min 7°C (44.6°F).Temperature
September's arrival subtly correlates with a reduction in the average high-temperature, down from an agreeable 21.6°C (70.9°F) in August to a refreshing 16.9°C (62.4°F). Bilten records an average nighttime low of 7°C (44.6°F) in September.Humidity
In September, the average relative humidity is 81%.Rainfall
In Bilten, during September, the rain falls for 11.6 days and regularly aggregates up to 41mm (1.61") of precipitation. In Bilten, during the entire year, the rain falls for 129.6 days and collects up to 714mm (28.11") of precipitation.Snowfall
June through September are months without snowfall.Daylight
In Bilten, the average length of the day in September is 12h and 34min.On the first day of September, sunrise is at 06:43 and sunset at 20:03. On the last day of the month, sunrise is at 07:22 and sunset at 19:05 CEST.
Sunshine
In September, the average sunshine is 8.9h.UV index
In Bilten, the average daily maximum UV index in September is 3. A UV Index estimate of 3 to 5 represents a medium vulnerability from exposure to the Sun's UV rays for average individuals.Note: The UV index of 3 during September leads to these advisories:
Undertake protective steps - Recommendations to avoid sunburn are issued. It's crucial to reduce time in the direct Sun around mid-day due to the intense solar radiation. Enhance your sun protection with tightly woven, yet airy clothing.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Bilten, Switzerland
- Average high temperature in September: 16.9°C
The warmest month (with the highest average high temperature) is August (21.6°C).
The month with the lowest average high temperature is January (1.4°C).
- Average low temperature in September: 7°C
The month with the highest average low temperature is August (10.5°C).
The coldest month (with the lowest average low temperature) is February (-5.8°C).
Average pressure in September
Bilten, Switzerland
- Average pressure in September: 1018.6mbar
The month with the highest atmospheric pressure is December (1020.8mbar).
The month with the lowest atmospheric pressure is April (1015.6mbar).
Average wind speed in September
Bilten, Switzerland
- Average wind speed in September: 6.2km/h
The windiest month (with the highest average wind speed) is December (8km/h).
The calmest month (with the lowest average wind speed) is August (6.1km/h).
Average humidity in September
Bilten, Switzerland
- Average humidity in September: 81%
The month with the highest relative humidity is February (89%).
The months with the lowest relative humidity are July and August (78%).
Average rainfall in September
Bilten, Switzerland
- Average rainfall in September: 41mm
The wettest month (with the highest rainfall) is May (91mm).
The driest month (with the least rainfall) is November (36mm).
Average rainfall days in September
Bilten, Switzerland
- Average rainfall days in September: 11.6 days
The month with the highest number of rainy days is May (15.3 days).
The month with the least rainy days is February (6 days).
Average snowfall in September
Bilten, Switzerland
- Average snowfall in September: 0mm
The month with the highest snowfall is January (417mm).
The months with the least snowfall are June, July, August and September (0mm).
Average snowfall days in September
Bilten, Switzerland
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (12 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Bilten, Switzerland
- Average daylight in September: 12h and 36min
The month with the longest days is June (Average daylight: 15h and 54min).
The month with the shortest days is December (Average daylight: 8h and 36min).
- Average sunshine in September: 8h and 54min
The month with the most sunshine is July (Average sunshine: 10h and 12min).
The month with the least sunshine is December (Average sunshine: 4h and 48min).
Average sunshine days in September
Bilten, Switzerland
- Average sunshine days in September: 16.5 days
The month with the most sunshine days is October (19.3 days).
The months with the least sunshine days are May and June (13.8 days).
Average UV index in September
Bilten, Switzerland
- Average UV index in September: 3
The months with the highest UV index are June and July (UV index 5).
The months with the lowest UV index are November and December (UV index 1).
Average cloud cover in September
Bilten, Switzerland
- Average cloud cover in September: 37
The month with the most cloud cover is February (Cloud cover 51).
The month with the least cloud cover is August (Cloud cover 34).
Average visibility in September
Bilten, Switzerland
- Average visibility in September: 8km
The month with the highest visibility is July (9km).
The months with the lowest visibility are January and February (7km).
