September weather forecastMels, Switzerland
September
Weather in September
September, the first month of the autumn in Mels, is still a comfortable month, with an average temperature varying between 16.8°C (62.2°F) and 6°C (42.8°F).Temperature
With the onset of September, the average high-temperature subtly recedes from August's agreeable 21°C (69.8°F) to a refreshing 16.8°C (62.2°F). In Mels, the September nights cool down to an average low of 6°C (42.8°F).Humidity
In Mels, the average relative humidity in September is 79%.Rainfall
In September, the rain falls for 13.8 days. Throughout September, 55mm (2.17") of precipitation is accumulated. Throughout the year, there are 149.5 rainfall days, and 983mm (38.7") of precipitation is accumulated.Snowfall
Months with snowfall are January through May, September through December. September is the first month it typically snows in Mels. Throughout September, in the average 0.1 snowfall days, it receives 1mm (0.04") of snow. In Mels, during the entire year, snow falls for 80 days and aggregates up to 2699mm (106.26") of snow.Daylight
In September, the average length of the day is 12h and 34min.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 07:20 and sunset at 19:03 CEST.
Sunshine
The average sunshine in September is 9.3h.UV index
In Mels, the average daily maximum UV index in September is 3. A UV Index of 3 to 5 symbolizes a moderate threat to health from exposure to the Sun's UV radiation for average individuals.Note: In September, the UV index of 3 transforms into the following advice:
Heed the precautions - Protecting the skin and eyes from damage is compulsory. To prevent harmful UV exposure, minimize direct contact with the Sun around midday. Protect your eyes, ears, face, and neck from the Sun by wearing a wide-brimmed hat. Mind this! Nearly twice the UV radiation from the Sun can be reflected by the snow.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Mels, Switzerland
- Average high temperature in September: 16.8°C
The warmest month (with the highest average high temperature) is August (21°C).
The month with the lowest average high temperature is January (0.8°C).
- Average low temperature in September: 6°C
The month with the highest average low temperature is August (9.4°C).
The coldest month (with the lowest average low temperature) is February (-7.4°C).
Average pressure in September
Mels, Switzerland
- Average pressure in September: 1018.5mbar
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
Mels, Switzerland
- Average wind speed in September: 6.5km/h
The windiest month (with the highest average wind speed) is December (8km/h).
The calmest months (with the lowest average wind speed) are August and September (6.5km/h).
Average humidity in September
Mels, Switzerland
- Average humidity in September: 79%
The months with the highest relative humidity are January and February (87%).
The month with the lowest relative humidity is July (76%).
Average rainfall in September
Mels, Switzerland
- Average rainfall in September: 55mm
The wettest month (with the highest rainfall) is August (115mm).
The driest month (with the least rainfall) is April (52mm).
Average rainfall days in September
Mels, Switzerland
- Average rainfall days in September: 13.8 days
The month with the highest number of rainy days is May (20 days).
The month with the least rainy days is February (6.2 days).
Average snowfall in September
Mels, Switzerland
- Average snowfall in September: 1mm
The month with the highest snowfall is January (613mm).
The months with the least snowfall are June, July and August (0mm).
Average snowfall days in September
Mels, Switzerland
- Average snowfall days in September: 0.1 days
The month with the highest number of snowfall days is January (15.9 days).
The months with the least snowfall days are June, July and August (0 days).
Average daylight in September /
Average sunshine in September
Mels, 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 18min
The month with the most sunshine is July (Average sunshine: 10h and 24min).
The months with the least sunshine are January, February and December (Average sunshine: 5h and 36min).
Average sunshine days in September
Mels, Switzerland
- Average sunshine days in September: 14.6 days
The month with the most sunshine days is October (17 days).
The month with the least sunshine days is May (8.3 days).
Average UV index in September
Mels, 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 January, February, March, November and December (UV index 2).
Average cloud cover in September
Mels, Switzerland
- Average cloud cover in September: 35
The month with the most cloud cover is February (Cloud cover 44).
The month with the least cloud cover is August (Cloud cover 32).
Average visibility in September
Mels, Switzerland
- Average visibility in September: 8km
The months with the highest visibility are June, July and August (9km).
The months with the lowest visibility are January and February (7km).
