September weather forecastWahlen, Switzerland
September
Weather in September
The first month of the autumn, September, is still a mild month in Wahlen, Switzerland, with temperature in the range of an average high of 15.6°C (60.1°F) and an average low of 5.5°C (41.9°F).Temperature
Wahlen's September weather shows a modest shift in high-temperatures, falling from August's comfortable 19.9°C (67.8°F) to a mild 15.6°C (60.1°F). Wahlen experiences an average nighttime temperature of 5.5°C (41.9°F) in the month of September.Humidity
The average relative humidity in September is 82%.Rainfall
September is the month with the least rainfall in Wahlen. Rain falls for 15.9 days and accumulates 53mm (2.09") of precipitation.Snowfall
In Wahlen, snow does not fall in June through September.Daylight
In Wahlen, Switzerland, the average length of the day in September is 12h and 34min.On the first day of September, sunrise is at 06:49 and sunset at 20:10. On the last day of the month, sunrise is at 07:28 and sunset at 19:11 CEST.
Sunshine
The average sunshine in September in Wahlen is 8.7h.UV index
The average daily maximum UV index in September is 3. A UV Index value of 3 to 5 symbolizes a medium health hazard from exposure to the Sun's UV rays for ordinary individuals.Note: In September, a daily UV index of 3 turns into the following recommendations:
Take necessary precautions - Protection from skin and eye injury is mandatory. Avoiding direct sunlight during midday hours helps reduce the risk from intense UV radiation. During bright days, sunglasses that offer UVA and UVB defense are recommended.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Wahlen, Switzerland
- Average high temperature in September: 15.6°C
The warmest month (with the highest average high temperature) is July (20.1°C).
The month with the lowest average high temperature is January (0.8°C).
- Average low temperature in September: 5.5°C
The month with the highest average low temperature is July (9.3°C).
The coldest month (with the lowest average low temperature) is February (-7°C).
Average pressure in September
Wahlen, Switzerland
- Average pressure in September: 1018.5mbar
The month with the highest atmospheric pressure is December (1021mbar).
The month with the lowest atmospheric pressure is April (1015.4mbar).
Average wind speed in September
Wahlen, Switzerland
- Average wind speed in September: 6.3km/h
The windiest month (with the highest average wind speed) is December (8.3km/h).
The calmest month (with the lowest average wind speed) is August (6km/h).
Average humidity in September
Wahlen, Switzerland
- Average humidity in September: 82%
The month with the highest relative humidity is February (88%).
The months with the lowest relative humidity are July and August (79%).
Average rainfall in September
Wahlen, Switzerland
- Average rainfall in September: 53mm
The wettest month (with the highest rainfall) is May (117mm).
The driest month (with the least rainfall) is September (53mm).
Average rainfall days in September
Wahlen, Switzerland
- Average rainfall days in September: 15.9 days
The month with the highest number of rainy days is May (21.8 days).
The month with the least rainy days is February (11.8 days).
Average snowfall in September
Wahlen, Switzerland
- Average snowfall in September: 0mm
The month with the highest snowfall is December (208mm).
The months with the least snowfall are June, July, August and September (0mm).
Average snowfall days in September
Wahlen, Switzerland
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (11.8 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Wahlen, 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 30min).
- Average sunshine in September: 8h and 42min
The month with the most sunshine is July (Average sunshine: 10h and 12min).
The months with the least sunshine are January, February and December (Average sunshine: 5h and 18min).
Average sunshine days in September
Wahlen, Switzerland
- Average sunshine days in September: 10.6 days
The month with the most sunshine days is October (14.8 days).
The month with the least sunshine days is May (6.8 days).
Average UV index in September
Wahlen, Switzerland
- Average UV index in September: 3
The months with the highest UV index are June, July and August (UV index 4).
The months with the lowest UV index are January, February, March, October, November and December (UV index 2).
Average cloud cover in September
Wahlen, Switzerland
- Average cloud cover in September: 37
The month with the most cloud cover is February (Cloud cover 48).
The months with the least cloud cover are August and October (Cloud cover 35).
Average visibility in September
Wahlen, Switzerland
- Average visibility in September: 8km
The months with the highest visibility are January, March, April, May, June, July, August, September, October, November and December (8km).
The month with the lowest visibility is February (7km).
