September weather forecastGlonn, Germany
September
Weather in September
The first month of the autumn, September, is still a refreshing month in Glonn, Germany, with an average temperature varying between 7.7°C (45.9°F) and 17.9°C (64.2°F).Temperature
September brings a slight decrease in the average high-temperature, shifting from an agreeable 22.5°C (72.5°F) in August to a refreshing 17.9°C (64.2°F). Glonn experiences a steady low-temperature of 7.7°C (45.9°F) throughout September.Humidity
The average relative humidity in September in Glonn is 84%.Rainfall
In Glonn, in September, during 16.1 rainfall days, 63mm (2.48") of precipitation is typically accumulated. Throughout the year, in Glonn, there are 189.7 rainfall days, and 973mm (38.31") of precipitation is accumulated.Snowfall
June through September are months without snowfall in Glonn.Daylight
The average length of the day in September is 12h and 34min.On the first day of September in Glonn, sunrise is at 06:31 and sunset at 19:53. On the last day of the month, sunrise is at 07:11 and sunset at 18:53 CEST.
Sunshine
In September, the average sunshine in Glonn is 8.5h.UV index
The average daily maximum UV index in September is 4. A UV Index estimate of 3 to 5 represents a moderate threat to health from unsafe exposure to UV radiation for average individuals.Note: The maximum UV index, 4 during September, leads to the following recommendations:
Prioritize safety - The need to safeguard skin and eyes from harm is emphasized. When the Sun's UV radiation is most intense during midday, it's best to find shade and limit exposure. Employ a wide-brim hat for potent defense against up to 50% of UV rays.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Glonn, Germany
- Average high temperature in September: 17.9°C
The warmest month (with the highest average high temperature) is August (22.5°C).
The month with the lowest average high temperature is January (2°C).
- Average low temperature in September: 7.7°C
The month with the highest average low temperature is August (11.4°C).
The coldest month (with the lowest average low temperature) is February (-4.5°C).
Average pressure in September
Glonn, Germany
- Average pressure in September: 1018.7mbar
The month with the highest atmospheric pressure is December (1020.4mbar).
The month with the lowest atmospheric pressure is April (1015.7mbar).
Average wind speed in September
Glonn, Germany
- Average wind speed in September: 6.7km/h
The windiest month (with the highest average wind speed) is March (9.4km/h).
The calmest months (with the lowest average wind speed) are August and September (6.7km/h).
Average humidity in September
Glonn, Germany
- Average humidity in September: 84%
The months with the highest relative humidity are January and February (88%).
The month with the lowest relative humidity is April (78%).
Average rainfall in September
Glonn, Germany
- Average rainfall in September: 63mm
The wettest month (with the highest rainfall) is July (120mm).
The driest month (with the least rainfall) is November (38mm).
Average rainfall days in September
Glonn, Germany
- Average rainfall days in September: 16.1 days
The month with the highest number of rainy days is May (23.3 days).
The month with the least rainy days is February (9.3 days).
Average snowfall in September
Glonn, Germany
- Average snowfall in September: 0mm
The month with the highest snowfall is January (379mm).
The months with the least snowfall are June, July, August and September (0mm).
Average snowfall days in September
Glonn, Germany
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (11.8 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Glonn, Germany
- Average daylight in September: 12h and 36min
The month with the longest days is June (Average daylight: 16h and 0min).
The month with the shortest days is December (Average daylight: 8h and 30min).
- Average sunshine in September: 8h and 30min
The month with the most sunshine is August (Average sunshine: 10h and 0min).
The month with the least sunshine is February (Average sunshine: 4h and 24min).
Average sunshine days in September
Glonn, Germany
- Average sunshine days in September: 10.7 days
The month with the most sunshine days is October (16.5 days).
The month with the least sunshine days is May (5.9 days).
Average UV index in September
Glonn, 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 January (UV index 1).
Average cloud cover in September
Glonn, Germany
- Average cloud cover in September: 41
The month with the most cloud cover is February (Cloud cover 55).
The month with the least cloud cover is August (Cloud cover 34).
Average visibility in September
Glonn, Germany
- Average visibility in September: 8km
The month with the highest visibility is April (9km).
The months with the lowest visibility are January and February (7km).
