September weather forecastTrient, Switzerland
September
Weather in September
September, the first month of the autumn in Trient, is still a cool month, with temperature in the range of an average low of 3.6°C (38.5°F) and an average high of 12.8°C (55°F).Temperature
September brings a minor shift in the average high-temperature, adjusting from a refreshing 16.8°C (62.2°F) in August to a fresh 12.8°C (55°F). Trient's temperature in September lowers to a consistent average of 3.6°C (38.5°F) during the nights.Humidity
In Trient, Switzerland, the average relative humidity in September is 81%.Rainfall
September is the month with the least rainfall. Rain falls for 19.7 days and accumulates 76mm (2.99") of precipitation.Snowfall
In Trient, snow does not fall in June through September.Daylight
In September, the average length of the day is 12h and 32min.On the first day of the month, sunrise is at 06:53 and sunset at 20:10. On the last day of September, in Trient, sunrise is at 07:29 and sunset at 19:13 CEST.
Sunshine
In September, the average sunshine is 8.3h.UV index
In September, the average daily maximum UV index in Trient, Switzerland, is 2. A UV Index reading of 2, and below, represents a minimal health hazard from unprotected exposure to Sun's UV rays for average individuals.Note: The maximum daily UV index of 2 in September converts into the following recommendations:
Most individuals can handle sun exposure for up to an hour without burning, but children must always be shielded from sun exposure. The solar radiation around mid-day is intense; avoid the Sun and stay safe. Prioritize a wide-brim hat for comprehensive sun defense for your face, neck, eyes, and ears. Mark this! Snow reflection can nearly double the UV radiation intensity from the Sun.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Trient, Switzerland
- Average high temperature in September: 12.8°C
The warmest month (with the highest average high temperature) is August (16.8°C).
The month with the lowest average high temperature is January (-2.3°C).
- Average low temperature in September: 3.6°C
The month with the highest average low temperature is July (6.7°C).
The coldest months (with the lowest average low temperature) are January and February (-11.4°C).
Average pressure in September
Trient, 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 (1015.1mbar).
Average wind speed in September
Trient, Switzerland
- Average wind speed in September: 6.7km/h
The windiest month (with the highest average wind speed) is December (8.6km/h).
The calmest months (with the lowest average wind speed) are August and September (6.7km/h).
Average humidity in September
Trient, Switzerland
- Average humidity in September: 81%
The month with the highest relative humidity is March (91%).
The month with the lowest relative humidity is August (78%).
Average rainfall in September
Trient, Switzerland
- Average rainfall in September: 76mm
The wettest month (with the highest rainfall) is May (204mm).
The driest month (with the least rainfall) is September (76mm).
Average rainfall days in September
Trient, Switzerland
- Average rainfall days in September: 19.7 days
The month with the highest number of rainy days is May (25.4 days).
The month with the least rainy days is January (9.7 days).
Average snowfall in September
Trient, Switzerland
- Average snowfall in September: 0mm
The month with the highest snowfall is December (778mm).
The months with the least snowfall are June, July, August and September (0mm).
Average snowfall days in September
Trient, Switzerland
- Average snowfall days in September: 0.1 days
The month with the highest number of snowfall days is February (17.6 days).
The months with the least snowfall days are June, July and August (0 days).
Average daylight in September /
Average sunshine in September
Trient, 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: 10h and 6min).
The months with the least sunshine are January and December (Average sunshine: 4h and 48min).
Average sunshine days in September
Trient, Switzerland
- Average sunshine days in September: 7.8 days
The month with the most sunshine days is October (13.7 days).
The months with the least sunshine days are May and June (3.3 days).
Average UV index in September
Trient, 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 and November (UV index 1).
Average cloud cover in September
Trient, Switzerland
- Average cloud cover in September: 40
The month with the most cloud cover is March (Cloud cover 51).
The month with the least cloud cover is August (Cloud cover 36).
Average visibility in September
Trient, Switzerland
- Average visibility in September: 8km
The months with the highest visibility are June, July, August, September and October (8km).
The months with the lowest visibility are January, February and March (6km).





