September weather forecastSankt Gallen, Austria
September
Weather in September
September, the first month of the autumn in Sankt Gallen, is still a comfortable month, with an average temperature fluctuating between 17.1°C (62.8°F) and 6.7°C (44.1°F).Temperature
Observing a mild shift, the average high-temperature during September reduces from August's agreeable 22.8°C (73°F) to a comfortable 17.1°C (62.8°F). In September, Sankt Gallen reports a consistent average low-temperature of 6.7°C (44.1°F) during the nights.Humidity
The average relative humidity in September is 82%.Rainfall
In Sankt Gallen, in September, it is raining for 15.5 days, with typically 62mm (2.44") of accumulated precipitation. Throughout the year, there are 184.1 rainfall days, and 861mm (33.9") of precipitation is accumulated.Snowfall
June through September are months without snowfall.Daylight
The average length of the day in September is 12h and 34min.On the first day of September, sunrise is at 06:20 and sunset at 19:42. On the last day of the month, sunrise is at 06:59 and sunset at 18:42 CEST.
Sunshine
In Sankt Gallen, the average sunshine in September is 8.7h.UV index
The average daily maximum UV index in September is 3. A UV Index of 3 to 5 symbolizes a moderate threat to health from exposure to the Sun's UV radiation for the ordinary person.Note: The maximum daily UV index, 3 in September, converts into the following recommendations:
Heed the precautions - It is counselled to guard against solar damage. Avoiding the Sun during its peak radiation time around midday is a healthy practice. Arm yourself against UV rays' harm with protective apparel and UV-filtering shades.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Sankt Gallen, Austria
- Average high temperature in September: 17.1°C
The warmest month (with the highest average high temperature) is August (22.8°C).
The month with the lowest average high temperature is January (0.2°C).
- Average low temperature in September: 6.7°C
The month with the highest average low temperature is August (10.1°C).
The coldest months (with the lowest average low temperature) are January and February (-6.2°C).
Average pressure in September
Sankt Gallen, Austria
- Average pressure in September: 1018.6mbar
The month with the highest atmospheric pressure is December (1020.5mbar).
The month with the lowest atmospheric pressure is May (1015.5mbar).
Average wind speed in September
Sankt Gallen, Austria
- Average wind speed in September: 5.8km/h
The windiest month (with the highest average wind speed) is March (7.5km/h).
The calmest month (with the lowest average wind speed) is August (5.4km/h).
Average humidity in September
Sankt Gallen, Austria
- Average humidity in September: 82%
The month with the highest relative humidity is February (91%).
The month with the lowest relative humidity is August (77%).
Average rainfall in September
Sankt Gallen, Austria
- Average rainfall in September: 62mm
The wettest month (with the highest rainfall) is May (111mm).
The driest month (with the least rainfall) is April (45mm).
Average rainfall days in September
Sankt Gallen, Austria
- Average rainfall days in September: 15.5 days
The month with the highest number of rainy days is May (22.8 days).
The month with the least rainy days is February (9.1 days).
Average snowfall in September
Sankt Gallen, Austria
- Average snowfall in September: 0mm
The month with the highest snowfall is January (385mm).
The months with the least snowfall are June, July, August and September (0mm).
Average snowfall days in September
Sankt Gallen, Austria
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (12.9 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Sankt Gallen, 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: 8h and 42min
The month with the most sunshine is July (Average sunshine: 10h and 12min).
The month with the least sunshine is February (Average sunshine: 4h and 6min).
Average sunshine days in September
Sankt Gallen, Austria
- Average sunshine days in September: 12 days
The month with the most sunshine days is October (16.4 days).
The month with the least sunshine days is May (6.2 days).
Average UV index in September
Sankt Gallen, Austria
- Average UV index in September: 3
The months with the highest UV index are June and July (UV index 5).
The month with the lowest UV index is January (UV index 1).
Average cloud cover in September
Sankt Gallen, Austria
- Average cloud cover in September: 43
The month with the most cloud cover is February (Cloud cover 58).
The month with the least cloud cover is August (Cloud cover 34).
Average visibility in September
Sankt Gallen, Austria
- Average visibility in September: 7km
The months with the highest visibility are April, May, June, July and August (8km).
The months with the lowest visibility are January and February (6km).
