September weather forecastEngi, Switzerland
September
Weather in September
September, the first month of the autumn in Engi, is also a moderate month, with an average temperature varying between 14.2°C (57.6°F) and 4.5°C (40.1°F).Temperature
The arrival of September signals a subtle shift in temperature, down from a comfortable 18°C (64.4°F) in August to a moderate 14.2°C (57.6°F). In the month of September, the average temperature dips to a wintry 4.5°C (40.1°F) during the night.Humidity
In September, the average relative humidity in Engi, Switzerland, is 84%.Rainfall
In Engi, in September, it is raining for 16.1 days, with typically 104mm (4.09") of accumulated precipitation. Throughout the year, there are 142.8 rainfall days, and 1680mm (66.14") of precipitation is accumulated.Snowfall
January through December are months with snowfall. In September, in Engi, it is snowing for 3.7 days. Throughout September, 116mm (4.57") of snow is accumulated. Throughout the year, in Engi, there are 135.1 snowfall days, and 6644mm (261.57") of snow is accumulated.Daylight
In Engi, the average length of the day in September is 12h and 34min.On the first day of September in Engi, sunrise is at 06:43 and sunset at 20:02. On the last day of the month, sunrise is at 07:21 and sunset at 19:04 CEST.
Sunshine
In September, the average sunshine is 7.5h.UV index
In Engi, the average daily maximum UV index in September is 3. A UV Index of 3 to 5 symbolizes a moderate threat to health from unsafe exposure to UV radiation for the ordinary person.Note: The maximum UV index of 3 during September leads to these instructions:
Put precautions into practice - Protective measures against sun-induced damage are advised. Solar radiation is at its peak intensity during midday, so it's advisable to stay indoors or in the shade. During bright days, sunglasses that offer UVA and UVB defense are recommended. Remember to consider! The UV radiation from the Sun can be intensified nearly twice by the reflection of snow.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Engi, Switzerland
- Average high temperature in September: 14.2°C
The warmest month (with the highest average high temperature) is August (18°C).
The months with the lowest average high temperature are January and February (-1.4°C).
- Average low temperature in September: 4.5°C
The month with the highest average low temperature is August (7.8°C).
The coldest month (with the lowest average low temperature) is February (-9.1°C).
Average pressure in September
Engi, Switzerland
- Average pressure in September: 1018.5mbar
The month with the highest atmospheric pressure is December (1020.9mbar).
The month with the lowest atmospheric pressure is April (1015.5mbar).
Average wind speed in September
Engi, Switzerland
- Average wind speed in September: 6.9km/h
The windiest month (with the highest average wind speed) is December (9.5km/h).
The calmest month (with the lowest average wind speed) is August (6.8km/h).
Average humidity in September
Engi, Switzerland
- Average humidity in September: 84%
The month with the highest relative humidity is March (92%).
The month with the lowest relative humidity is July (81%).
Average rainfall in September
Engi, Switzerland
- Average rainfall in September: 104mm
The wettest month (with the highest rainfall) is August (223mm).
The driest month (with the least rainfall) is February (90mm).
Average rainfall days in September
Engi, Switzerland
- Average rainfall days in September: 16.1 days
The month with the highest number of rainy days is July (23.8 days).
The month with the least rainy days is February (1.6 days).
Average snowfall in September
Engi, Switzerland
- Average snowfall in September: 116mm
The month with the highest snowfall is December (1197mm).
The month with the least snowfall is July (6mm).
Average snowfall days in September
Engi, Switzerland
- Average snowfall days in September: 3.7 days
The month with the highest number of snowfall days is March (21.1 days).
The month with the least snowfall days is July (0.3 days).
Average daylight in September /
Average sunshine in September
Engi, 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: 7h and 30min
The month with the most sunshine is July (Average sunshine: 8h and 42min).
The month with the least sunshine is February (Average sunshine: 3h and 24min).
Average sunshine days in September
Engi, Switzerland
- Average sunshine days in September: 10.8 days
The month with the most sunshine days is October (15 days).
The month with the least sunshine days is May (4.9 days).
Average UV index in September
Engi, 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, November and December (UV index 1).
Average cloud cover in September
Engi, Switzerland
- Average cloud cover in September: 49
The month with the most cloud cover is February (Cloud cover 64).
The month with the least cloud cover is August (Cloud cover 47).
Average visibility in September
Engi, Switzerland
- Average visibility in September: 7km
The month with the highest visibility is July (8km).
The months with the lowest visibility are January, February and March (6km).





