September weather forecastLeuk, Switzerland
September weather for Leuk, Switzerland: In Leuk, Switzerland, during September, snow falls for 1.7 days and regularly aggregates up to 12mm (0.47") of snow. The first month of the autumn, September, is still a cool month in Leuk, Switzerland, with temperature in the range of an average high of 12°C (53.6°F) and an average low of 2.8°C (37°F).
September
Weather in September
The first month of the autumn, September, is still a cool month in Leuk, Switzerland, with temperature in the range of an average high of 12°C (53.6°F) and an average low of 2.8°C (37°F).Temperature
Transition into September subtly marks a drop in the average high-temperature, moderately moving from a refreshing 16.2°C (61.2°F) in August to a cool 12°C (53.6°F). Nighttime temperatures hover around an average low of 2.8°C (37°F) in September.Humidity
In September, the average relative humidity is 83%.Rainfall
In Leuk, Switzerland, in September, it is raining for 16.2 days, with typically 30mm (1.18") of accumulated precipitation. In Leuk, Switzerland, during the entire year, the rain falls for 172.2 days and collects up to 522mm (20.55") of precipitation.Snowfall
Months with snowfall in Leuk, Switzerland, are January through June, August through December. In Leuk, Switzerland, during September, snow falls for 1.7 days and regularly aggregates up to 12mm (0.47") of snow. In Leuk, Switzerland, during the entire year, snow falls for 111 days and aggregates up to 1205mm (47.44") of snow.Daylight
In Leuk, the average length of the day in September is 12h and 32min.On the first day of the month, sunrise is at 06:50 and sunset at 20:08. On the last day of September, sunrise is at 07:27 and sunset at 19:11 CEST.
Sunshine
The average sunshine in September is 8.2h.UV index
The average daily maximum UV index in September is 2. A UV Index of 2, and less, symbolizes a low threat to health from unprotected exposure to Sun's UV rays for the ordinary person.Note: The maximum daily UV index of 2 in September interprets into the following recommendations:
Although the majority can endure up to an hour in the sun without burns, children always require sun protection. The solar radiation is most powerful near the mid-day, so the exposure to the direct Sun should be reduced accordingly. To mitigate harm from sun exposure, pick sunglasses offering UVA and UVB defense. Be watchful! The reflection of snow can enhance the intensity of the Sun's UV radiation nearly double.
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Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Leuk, Switzerland
- Average high temperature in September: 12°C
The warmest month (with the highest average high temperature) is July (16.3°C).
The month with the lowest average high temperature is January (-2.8°C).
- Average low temperature in September: 2.8°C
The months with the highest average low temperature are July and August (5.8°C).
The coldest month (with the lowest average low temperature) is February (-11.9°C).
Average pressure in September
Leuk, Switzerland
- Average pressure in September: 1018.3mbar
The month with the highest atmospheric pressure is December (1021mbar).
The month with the lowest atmospheric pressure is April (1015.3mbar).
Average wind speed in September
Leuk, Switzerland
- Average wind speed in September: 6.3km/h
The windiest month (with the highest average wind speed) is December (8.4km/h).
The calmest month (with the lowest average wind speed) is August (6km/h).
Average humidity in September
Leuk, Switzerland
- Average humidity in September: 83%
The month with the highest relative humidity is March (92%).
The month with the lowest relative humidity is August (80%).
Average rainfall in September
Leuk, Switzerland
- Average rainfall in September: 30mm
The wettest months (with the highest rainfall) are June and August (67mm).
The driest month (with the least rainfall) is January (23mm).
Average rainfall days in September
Leuk, Switzerland
- Average rainfall days in September: 16.2 days
The month with the highest number of rainy days is July (23.4 days).
The month with the least rainy days is February (6.6 days).
Average snowfall in September
Leuk, Switzerland
- Average snowfall in September: 12mm
The month with the highest snowfall is March (199mm).
The month with the least snowfall is July (0mm).
Average snowfall days in September
Leuk, Switzerland
- Average snowfall days in September: 1.7 days
The months with the highest number of snowfall days are January and March (18.1 days).
The month with the least snowfall days is July (0.1 days).
Average daylight in September /
Average sunshine in September
Leuk, Switzerland
- Average daylight in September: 12h and 30min
The month with the longest days is June (Average daylight: 15h and 42min).
The month with the shortest days is December (Average daylight: 8h and 42min).
- Average sunshine in September: 8h and 12min
The months with the most sunshine are July and August (Average sunshine: 9h and 30min).
The month with the least sunshine is February (Average sunshine: 4h and 24min).
Average sunshine days in September
Leuk, Switzerland
- Average sunshine days in September: 8.4 days
The month with the most sunshine days is October (15.2 days).
The month with the least sunshine days is July (3.8 days).
Average UV index in September
Leuk, Switzerland
- Average UV index in September: 2
The months with the highest UV index are June and July (UV index 4).
The months with the lowest UV index are January, February, March, April and November (UV index 1).
Average cloud cover in September
Leuk, Switzerland
- Average cloud cover in September: 44
The month with the most cloud cover is March (Cloud cover 57).
The month with the least cloud cover is October (Cloud cover 40).
Average visibility in September
Leuk, Switzerland
- Average visibility in September: 7km
The months with the highest visibility are July, August and October (8km).
The months with the lowest visibility are January, February and March (6km).





