September weather forecastSankt Blasien, Germany
September
Weather in September
September, the first month of the autumn in Sankt Blasien, is still a refreshing month, with temperature in the range of an average low of 8.3°C (46.9°F) and an average high of 18.7°C (65.7°F).Temperature
Sankt Blasien's September weather features a light decline in high-temperatures, reducing from an agreeable 22.8°C (73°F) in August to a comfortable 18.7°C (65.7°F). Sankt Blasien in September experiences a low-temperature average of 8.3°C (46.9°F).Humidity
The average relative humidity in September is 82%.Rainfall
September is the month with the least rainfall. Rain falls for 15.6 days and accumulates 57mm (2.24") of precipitation.Snowfall
January through May, September through December are months with snowfall. September is the first month it typically snows. Throughout September, in the average 0.4 snowfall days, it receives 22mm (0.87") of snow. In Sankt Blasien, Germany, during the entire year, snow falls for 86 days and aggregates up to 1942mm (76.46") of snow.Daylight
In Sankt Blasien, the average length of the day in September is 12h and 34min.On the first day of the month, sunrise is at 06:46 and sunset at 20:08. On the last day of September, sunrise is at 07:25 and sunset at 19:08 CEST.
Sunshine
In Sankt Blasien, the average sunshine in September is 8.1h.UV index
In September, the average daily maximum UV index is 4. A UV Index reading of 3 to 5 represents a moderate health risk from exposure to the Sun's UV rays for ordinary individuals.Note: The average daily UV index of 4 in September transforms into the following instructions:
Take necessary precautions - Suggestions to elude sunburn are provided. The midday Sun can be dangerous due to its intense radiation; always find shade and reduce exposure. Tightly woven clothing, when worn loosely, shields effectively against the Sun. Take precaution! The reflection from snow can almost double the UV radiation of the Sun.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Sankt Blasien, Germany
- Average high temperature in September: 18.7°C
The warmest months (with the highest average high temperature) are July and August (22.8°C).
The month with the lowest average high temperature is January (2.5°C).
- Average low temperature in September: 8.3°C
The months with the highest average low temperature are July and August (11.4°C).
The coldest month (with the lowest average low temperature) is February (-3.1°C).
Average pressure in September
Sankt Blasien, Germany
- Average pressure in September: 1018.5mbar
The month with the highest atmospheric pressure is December (1020.5mbar).
The month with the lowest atmospheric pressure is November (1015.6mbar).
Average wind speed in September
Sankt Blasien, Germany
- Average wind speed in September: 7.1km/h
The windiest months (with the highest average wind speed) are March and December (9.7km/h).
The calmest month (with the lowest average wind speed) is August (6.8km/h).
Average humidity in September
Sankt Blasien, Germany
- Average humidity in September: 82%
The month with the highest relative humidity is January (90%).
The months with the lowest relative humidity are April and July (79%).
Average rainfall in September
Sankt Blasien, Germany
- Average rainfall in September: 57mm
The wettest month (with the highest rainfall) is June (130mm).
The driest month (with the least rainfall) is September (57mm).
Average rainfall days in September
Sankt Blasien, Germany
- Average rainfall days in September: 15.6 days
The month with the highest number of rainy days is May (22.8 days).
The month with the least rainy days is February (5.6 days).
Average snowfall in September
Sankt Blasien, Germany
- Average snowfall in September: 22mm
The month with the highest snowfall is December (454mm).
The months with the least snowfall are June, July and August (0mm).
Average snowfall days in September
Sankt Blasien, Germany
- Average snowfall days in September: 0.4 days
The month with the highest number of snowfall days is January (17.8 days).
The months with the least snowfall days are June, July and August (0 days).
Average daylight in September /
Average sunshine in September
Sankt Blasien, Germany
- 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 6min
The month with the most sunshine is July (Average sunshine: 9h and 36min).
The month with the least sunshine is December (Average sunshine: 3h and 36min).
Average sunshine days in September
Sankt Blasien, Germany
- Average sunshine days in September: 12.2 days
The month with the most sunshine days is October (15.2 days).
The month with the least sunshine days is June (5.7 days).
Average UV index in September
Sankt Blasien, Germany
- Average UV index in September: 4
The months with the highest UV index are June and July (UV index 5).
The month with the lowest UV index is November (UV index 1).
Average cloud cover in September
Sankt Blasien, Germany
- Average cloud cover in September: 41
The month with the most cloud cover is January (Cloud cover 63).
The month with the least cloud cover is August (Cloud cover 38).
Average visibility in September
Sankt Blasien, Germany
- Average visibility in September: 8km
The month with the highest visibility is July (9km).
The month with the lowest visibility is January (6km).
