September weather forecastThyon, Switzerland
September
Weather in September
The first month of the autumn, September, is also a fresh month in Thyon, Switzerland, with an average temperature varying between 3.3°C (37.9°F) and 12.3°C (54.1°F).Temperature
September marks a gentle change in average high-temperature, declining from August's refreshing 16.7°C (62.1°F) to a cool 12.3°C (54.1°F). In Thyon, the average nighttime temperature during September is a wintry 3.3°C (37.9°F).Humidity
In September, the average relative humidity in Thyon is 82%.Rainfall
In September, in Thyon, Switzerland, the rain falls for 19.4 days. Throughout September, 70mm (2.76") of precipitation is accumulated. In Thyon, during the entire year, the rain falls for 226.6 days and collects up to 1272mm (50.08") of precipitation.Snowfall
June through September are months without snowfall in Thyon, Switzerland.Daylight
The average length of the day in September in Thyon is 12h and 32min.On the first day of the month, sunrise is at 06:51 and sunset at 20:09. On the last day of September, in Thyon, sunrise is at 07:28 and sunset at 19:12 CEST.
Sunshine
In Thyon, the average sunshine in September is 8.3h.UV index
The average daily maximum UV index in September in Thyon is 3. A UV Index value of 3 to 5 symbolizes a moderate health risk from exposure to the Sun's UV radiation for ordinary individuals.Note: In September, the maximum UV index of 3 suggests this advice:
Act with care - Obligation to protect against skin and eye damage is highlighted. The best time to avoid the Sun's harmful UV radiation is during midday when it's most potent. Sunglasses that guard against UVA and UVB rays are pivotal in minimizing sun-induced ocular damage.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Thyon, Switzerland
- Average high temperature in September: 12.3°C
The warmest month (with the highest average high temperature) is August (16.7°C).
The month with the lowest average high temperature is January (-2.6°C).
- Average low temperature in September: 3.3°C
The month with the highest average low temperature is August (6.4°C).
The coldest month (with the lowest average low temperature) is February (-11.1°C).
Average pressure in September
Thyon, Switzerland
- Average pressure in September: 1018.2mbar
The month with the highest atmospheric pressure is December (1020.9mbar).
The month with the lowest atmospheric pressure is April (1015.2mbar).
Average wind speed in September
Thyon, Switzerland
- Average wind speed in September: 6.4km/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 (6.2km/h).
Average humidity in September
Thyon, Switzerland
- Average humidity in September: 82%
The month with the highest relative humidity is March (90%).
The months with the lowest relative humidity are July and August (79%).
Average rainfall in September
Thyon, Switzerland
- Average rainfall in September: 70mm
The wettest month (with the highest rainfall) is May (158mm).
The driest month (with the least rainfall) is October (63mm).
Average rainfall days in September
Thyon, Switzerland
- Average rainfall days in September: 19.4 days
The month with the highest number of rainy days is May (24.9 days).
The month with the least rainy days is December (13.3 days).
Average snowfall in September
Thyon, Switzerland
- Average snowfall in September: 0mm
The month with the highest snowfall is January (175mm).
The months with the least snowfall are June, July, August and September (0mm).
Average snowfall days in September
Thyon, Switzerland
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is February (10.6 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Thyon, 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 18min
The months with the most sunshine are July and August (Average sunshine: 9h and 54min).
The month with the least sunshine is January (Average sunshine: 4h and 48min).
Average sunshine days in September
Thyon, Switzerland
- Average sunshine days in September: 8.5 days
The month with the most sunshine days is October (14.8 days).
The month with the least sunshine days is May (4.2 days).
Average UV index in September
Thyon, 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
Thyon, Switzerland
- Average cloud cover in September: 41
The months with the most cloud cover are February and March (Cloud cover 53).
The month with the least cloud cover is October (Cloud cover 36).
Average visibility in September
Thyon, Switzerland
- Average visibility in September: 7km
The months with the highest visibility are June, July, August, October, November and December (8km).
The month with the lowest visibility is March (6km).
