September weather forecastDornbirn, Austria
September
Weather in September
September marks the beginning of the fall season in Dornbirn with temperatures moving between 7.4°C (45.3°F) and 17.6°C (63.7°F). Rainfall drops to a lower level at 60mm (2.36") signifying a slight dry spell. Consequently, city walks and parks are the most attractive spots offering a scenery of colorful leaves. Autumn's arrival prompts cooler temperatures and beautiful fall foliage. However, the winds stay light and the shortening daylight hours merely affect outdoor plans.Temperature
In Dornbirn, the average high-temperature in September slightly decreases from a pleasant 21.9°C (71.4°F) in August to an enjoyable 17.6°C (63.7°F). The month of September records an average low-temperature of 7.4°C (45.3°F).Humidity
In Dornbirn, the average relative humidity in September is 79%.Rainfall
In Dornbirn, in September, during 14.6 rainfall days, 60mm (2.36") of precipitation is typically accumulated. In Dornbirn, during the entire year, the rain falls for 174 days and collects up to 955mm (37.6") of precipitation.Snowfall
Months with snowfall in Dornbirn are January through May, September through December. September is the first month it typically snows in Dornbirn. Throughout September, in the average 0.1 snowfall days, it receives 1mm (0.04") of snow. In Dornbirn, during the entire year, snow falls for 49.1 days and aggregates up to 1273mm (50.12") of snow.Daylight
In Dornbirn, the average length of the day in September is 12h and 34min.On the first day of September, sunrise is at 06:40 and sunset at 20:01. On the last day of the month, sunrise is at 07:19 and sunset at 19:02 CEST.
Sunshine
In Dornbirn, the average sunshine in September is 9.2h.UV index
In September, the average daily maximum UV index in Dornbirn is 3. A UV Index reading of 3 to 5 represents a moderate health risk from exposure to the Sun's UV radiation for ordinary individuals.Note: In September, a daily UV index of 3 turns into the following recommendations:
Adopt protective measures - Suggestions to resist sunburn are offered. Avoiding the Sun's peak radiation during midday hours is essential for health and safety. A wide-brimmed hat is a staple for defending the face, eyes, ears, and neck from the Sun. Notice! The UV radiation of the Sun can be intensified nearly twofold due to the reflective quality of snow.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Dornbirn, Austria
- Average high temperature in September: 17.6°C
The warmest month (with the highest average high temperature) is July (22.2°C).
The month with the lowest average high temperature is January (1.8°C).
- Average low temperature in September: 7.4°C
The month with the highest average low temperature is August (11.2°C).
The coldest month (with the lowest average low temperature) is February (-4.8°C).
Average pressure in September
Dornbirn, Austria
- Average pressure in September: 1018.6mbar
The month with the highest atmospheric pressure is December (1020.7mbar).
The month with the lowest atmospheric pressure is April (1015.7mbar).
Average wind speed in September
Dornbirn, Austria
- Average wind speed in September: 6.6km/h
The windiest month (with the highest average wind speed) is March (8.3km/h).
The calmest month (with the lowest average wind speed) is August (6.5km/h).
Average humidity in September
Dornbirn, Austria
- Average humidity in September: 79%
The months with the highest relative humidity are January and February (86%).
The months with the lowest relative humidity are July and August (76%).
Average rainfall in September
Dornbirn, Austria
- Average rainfall in September: 60mm
The wettest month (with the highest rainfall) is August (110mm).
The driest month (with the least rainfall) is April (47mm).
Average rainfall days in September
Dornbirn, Austria
- Average rainfall days in September: 14.6 days
The month with the highest number of rainy days is May (20.3 days).
The month with the least rainy days is February (9 days).
Average snowfall in September
Dornbirn, Austria
- Average snowfall in September: 1mm
The month with the highest snowfall is January (376mm).
The months with the least snowfall are June, July and August (0mm).
Average snowfall days in September
Dornbirn, Austria
- Average snowfall days in September: 0.1 days
The month with the highest number of snowfall days is January (11.6 days).
The months with the least snowfall days are June, July and August (0 days).
Average daylight in September /
Average sunshine in September
Dornbirn, Austria
- Average daylight in September: 12h and 36min
The month with the longest days is June (Average daylight: 15h and 54min).
The month with the shortest days is December (Average daylight: 8h and 30min).
- Average sunshine in September: 9h and 12min
The months with the most sunshine are July and August (Average sunshine: 10h and 18min).
The month with the least sunshine is February (Average sunshine: 5h and 0min).
Average sunshine days in September
Dornbirn, Austria
- Average sunshine days in September: 13 days
The month with the most sunshine days is October (17.7 days).
The month with the least sunshine days is June (7.7 days).
Average UV index in September
Dornbirn, Austria
- 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, November and December (UV index 2).
Average cloud cover in September
Dornbirn, Austria
- Average cloud cover in September: 36
The months with the most cloud cover are January and February (Cloud cover 47).
The month with the least cloud cover is August (Cloud cover 31).
Average visibility in September
Dornbirn, Austria
- Average visibility in September: 8km
The months with the highest visibility are April, June, July and August (9km).
The months with the lowest visibility are January and February (7km).
