September weather forecastHaldenstein, Switzerland
September weather for Haldenstein, Switzerland: The first month of the autumn, September, is also a moderate month in Haldenstein, Switzerland, with an average temperature varying between 14.6°C (58.3°F) and 3.7°C (38.7°F). In Haldenstein, in September, during 17.5 rainfall days, 62mm (2.44") of precipitation is typically accumulated.
September
Weather in September
The first month of the autumn, September, is also a moderate month in Haldenstein, Switzerland, with an average temperature varying between 14.6°C (58.3°F) and 3.7°C (38.7°F).Temperature
September reveals a small adjustment in temperature, transitioning from an average high of an enjoyable 19°C (66.2°F) in August to a still refreshing 14.6°C (58.3°F). Haldenstein records an average nighttime low of 3.7°C (38.7°F) in September.Humidity
In Haldenstein, Switzerland, the average relative humidity in September is 81%.Rainfall
In Haldenstein, in September, it is raining for 17.5 days, with typically 62mm (2.44") of accumulated precipitation. In Haldenstein, Switzerland, during the entire year, the rain falls for 211.5 days and collects up to 1072mm (42.2") of precipitation.Snowfall
June through September are months without snowfall in Haldenstein.Daylight
In September, the average length of the day in Haldenstein is 12h and 33min.On the first day of the month, sunrise is at 06:42 and sunset at 20:01. On the last day of September, sunrise is at 07:19 and sunset at 19:03 CEST.
Sunshine
The average sunshine in September in Haldenstein, Switzerland, is 9h.UV index
The average daily maximum UV index in September in Haldenstein is 3. A UV Index of 3 to 5 symbolizes a moderate health risk from exposure to the Sun's UV rays for the average person.Note: In September, the maximum UV index of 3 suggests this advice:
Heed the precautions - Suggestions to avoid sunburn are made. Avoiding the Sun's peak radiation during midday hours is essential for health and safety. A hat with a generous brim can prevent nearly 50% of UV rays from reaching your eyes.
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Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Haldenstein, Switzerland
- Average high temperature in September: 14.6°C
The warmest month (with the highest average high temperature) is August (19°C).
The month with the lowest average high temperature is January (-1.3°C).
- Average low temperature in September: 3.7°C
The month with the highest average low temperature is August (7.3°C).
The coldest month (with the lowest average low temperature) is February (-10°C).
Average pressure in September
Haldenstein, Switzerland
- Average pressure in September: 1018.3mbar
The month with the highest atmospheric pressure is December (1020.8mbar).
The month with the lowest atmospheric pressure is April (1015.5mbar).
Average wind speed in September
Haldenstein, Switzerland
- Average wind speed in September: 6.6km/h
The windiest month (with the highest average wind speed) is November (8.2km/h).
The calmest month (with the lowest average wind speed) is August (6.5km/h).
Average humidity in September
Haldenstein, Switzerland
- Average humidity in September: 81%
The month with the highest relative humidity is March (90%).
The month with the lowest relative humidity is July (78%).
Average rainfall in September
Haldenstein, Switzerland
- Average rainfall in September: 62mm
The wettest month (with the highest rainfall) is August (133mm).
The driest month (with the least rainfall) is February (61mm).
Average rainfall days in September
Haldenstein, Switzerland
- Average rainfall days in September: 17.5 days
The month with the highest number of rainy days is May (24.3 days).
The month with the least rainy days is January (12.3 days).
Average snowfall in September
Haldenstein, Switzerland
- Average snowfall in September: 0mm
The month with the highest snowfall is January (320mm).
The months with the least snowfall are June, July, August and September (0mm).
Average snowfall days in September
Haldenstein, Switzerland
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (13.8 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Haldenstein, Switzerland
- Average daylight in September: 12h and 36min
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: 9h and 0min
The month with the most sunshine is July (Average sunshine: 10h and 18min).
The month with the least sunshine is February (Average sunshine: 5h and 18min).
Average sunshine days in September
Haldenstein, Switzerland
- Average sunshine days in September: 9.1 days
The month with the most sunshine days is October (14.6 days).
The month with the least sunshine days is May (3.8 days).
Average UV index in September
Haldenstein, Switzerland
- Average UV index in September: 3
The months with the highest UV index are June and July (UV index 4).
The months with the lowest UV index are January and November (UV index 1).
Average cloud cover in September
Haldenstein, Switzerland
- Average cloud cover in September: 39
The month with the most cloud cover is March (Cloud cover 48).
The months with the least cloud cover are August and October (Cloud cover 37).
Average visibility in September
Haldenstein, Switzerland
- Average visibility in September: 7km
The months with the highest visibility are May, June, July, August, October and November (8km).
The month with the lowest visibility is January (6km).





