September weather forecastLocarno, Switzerland
September weather for Locarno, Switzerland: The onset of September in Locarno, Switzerland, results in a small decrease in the average high-temperature, moderately receding from a pleasant 20.8°C (69.4°F) in August to a refreshing 16.5°C (61.7°F). In Locarno, Switzerland, in September, during 17.6 rainfall days, 63mm (2.48") of precipitation is typically accumulated.
September
Weather in September
September sees the onset of autumn, a beautiful season with temperatures becoming mild. Despite a decrease in temperature to a high of 16.5°C (61.7°F), the weather remains warm, offering stunning views of fall foliage. Outdoor activities such as hiking and discovering the Swiss alpine region continue. September's weather thus represents the perfect blend of summer's warmth and the cool of the upcoming winter. This period is great for tourists wanting to escape the rush of summer visitors yet still enjoy the excellent weather.Temperature
The onset of September in Locarno, Switzerland, results in a small decrease in the average high-temperature, moderately receding from a pleasant 20.8°C (69.4°F) in August to a refreshing 16.5°C (61.7°F). During the month of September, the temperature in Locarno generally drops to a low average of 7.2°C (45°F).Humidity
The average relative humidity in September is 79%.Rainfall
In Locarno, in September, during 17.6 rainfall days, 63mm (2.48") of precipitation is typically accumulated. Throughout the year, there are 200.8 rainfall days, and 1253mm (49.33") of precipitation is accumulated.Snowfall
In Locarno, Switzerland, snow does not fall in June through September.Daylight
In Locarno, the average length of the day in September is 12h and 32min.On the first day of the month, sunrise is at 06:46 and sunset at 20:03. On the last day of September, sunrise is at 07:22 and sunset at 19:06 CEST.
Sunshine
In Locarno, the average sunshine in September is 9.4h.UV index
In September, the average daily maximum UV index is 3. A UV Index value of 3 to 5 symbolizes a medium health hazard from unsafe exposure to UV radiation for average individuals.Note: The average daily UV index of 3 in September transforms into the following instructions:
Exercise caution. The susceptibility of light skin individuals to burns is less than 30 minutes. Midday is when the Sun's radiation is strongest; avoid prolonged exposure during this time. Sun protection is enhanced with clothing that boasts a tight weave yet offers a loose fit.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Locarno, Switzerland
- Average high temperature in September: 16.5°C
The warmest month (with the highest average high temperature) is July (21.2°C).
The month with the lowest average high temperature is January (0.9°C).
- Average low temperature in September: 7.2°C
The month with the highest average low temperature is August (10.6°C).
The coldest month (with the lowest average low temperature) is January (-5.9°C).
Average pressure in September
Locarno, Switzerland
- Average pressure in September: 1017.9mbar
The month with the highest atmospheric pressure is December (1020.6mbar).
The month with the lowest atmospheric pressure is April (1015.1mbar).
Average wind speed in September
Locarno, Switzerland
- Average wind speed in September: 6.3km/h
The windiest month (with the highest average wind speed) is February (7.4km/h).
The calmest month (with the lowest average wind speed) is November (5.8km/h).
Average humidity in September
Locarno, Switzerland
- Average humidity in September: 79%
The month with the highest relative humidity is November (83%).
The month with the lowest relative humidity is July (76%).
Average rainfall in September
Locarno, Switzerland
- Average rainfall in September: 63mm
The wettest month (with the highest rainfall) is November (164mm).
The driest month (with the least rainfall) is January (45mm).
Average rainfall days in September
Locarno, Switzerland
- Average rainfall days in September: 17.6 days
The month with the highest number of rainy days is July (25.5 days).
The months with the least rainy days are February and December (8.6 days).
Average snowfall in September
Locarno, Switzerland
- Average snowfall in September: 0mm
The month with the highest snowfall is November (334mm).
The months with the least snowfall are June, July, August and September (0mm).
Average snowfall days in September
Locarno, Switzerland
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (14.8 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Locarno, 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: 9h and 24min
The month with the most sunshine is July (Average sunshine: 11h and 18min).
The month with the least sunshine is November (Average sunshine: 5h and 24min).
Average sunshine days in September
Locarno, Switzerland
- Average sunshine days in September: 9.7 days
The month with the most sunshine days is October (14.9 days).
The month with the least sunshine days is June (3.1 days).
Average UV index in September
Locarno, 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, October, November and December (UV index 2).
Average cloud cover in September
Locarno, Switzerland
- Average cloud cover in September: 33
The month with the most cloud cover is November (Cloud cover 42).
The month with the least cloud cover is July (Cloud cover 27).
Average visibility in September
Locarno, Switzerland
- Average visibility in September: 8km
The months with the highest visibility are April, May, June, July, August and December (9km).
The months with the lowest visibility are January, February, March, September, October and November (8km).
