September weather forecastGerolstein, Germany
September
Weather in September
The first month of the autumn, September, is still a refreshing month in Gerolstein, Germany, with an average temperature ranging between min 9°C (48.2°F) and max 18.1°C (64.6°F).Temperature
The move into September indicates a slight reduction in the average high-temperature, down from August's pleasant 22°C (71.6°F) to an enjoyable 18.1°C (64.6°F). The average low-temperature during September nights is a frosty 9°C (48.2°F).Humidity
In September, the average relative humidity in Gerolstein is 81%.Rainfall
In September, the rain falls for 13.8 days. Throughout September, 37mm (1.46") of precipitation is accumulated. In Gerolstein, during the entire year, the rain falls for 185.2 days and collects up to 578mm (22.76") of precipitation.Snowfall
In Gerolstein, Germany, snow does not fall in June through September.Daylight
In Gerolstein, the average length of the day in September is 12h and 37min.On the first day of the month, sunrise is at 06:48 and sunset at 20:17. On the last day of September, in Gerolstein, sunrise is at 07:32 and sunset at 19:13 CEST.
Sunshine
In Gerolstein, the average sunshine in September is 8.1h.UV index
In Gerolstein, Germany, the average daily maximum UV index in September is 3. A UV Index reading of 3 to 5 represents a medium vulnerability from exposure to the Sun's UV rays for the average person.Note: In September, the UV index of 3 transforms into the following advice:
Put precautions into practice - Guidance to elude sunburn is provided. Exposing oneself to the midday Sun can be harmful due to the strong UV radiation; limit your time outside. In bright sunlight, prioritize sunglasses that grant protection from UVA and UVB radiation.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Gerolstein, Germany
- Average high temperature in September: 18.1°C
The warmest month (with the highest average high temperature) is July (22.3°C).
The month with the lowest average high temperature is January (2.8°C).
- Average low temperature in September: 9°C
The month with the highest average low temperature is August (12.3°C).
The coldest month (with the lowest average low temperature) is January (-1.4°C).
Average pressure in September
Gerolstein, Germany
- Average pressure in September: 1017.7mbar
The month with the highest atmospheric pressure is September (1017.7mbar).
The month with the lowest atmospheric pressure is November (1013.8mbar).
Average wind speed in September
Gerolstein, Germany
- Average wind speed in September: 9.3km/h
The windiest month (with the highest average wind speed) is December (14.1km/h).
The calmest month (with the lowest average wind speed) is August (9.1km/h).
Average humidity in September
Gerolstein, Germany
- Average humidity in September: 81%
The months with the highest relative humidity are January, November and December (90%).
The month with the lowest relative humidity is April (76%).
Average rainfall in September
Gerolstein, Germany
- Average rainfall in September: 37mm
The wettest months (with the highest rainfall) are May and June (65mm).
The driest month (with the least rainfall) is April (34mm).
Average rainfall days in September
Gerolstein, Germany
- Average rainfall days in September: 13.8 days
The month with the highest number of rainy days is July (20.6 days).
The month with the least rainy days is February (9.5 days).
Average snowfall in September
Gerolstein, Germany
- Average snowfall in September: 0mm
The month with the highest snowfall is February (142mm).
The months with the least snowfall are June, July, August and September (0mm).
Average snowfall days in September
Gerolstein, Germany
- Average snowfall days in September: 0 days
The months with the highest number of snowfall days are January and February (12.7 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Gerolstein, Germany
- Average daylight in September: 12h and 36min
The month with the longest days is June (Average daylight: 16h and 18min).
The month with the shortest days is December (Average daylight: 8h and 6min).
- Average sunshine in September: 8h and 6min
The month with the most sunshine is July (Average sunshine: 9h and 42min).
The month with the least sunshine is December (Average sunshine: 3h and 18min).
Average sunshine days in September
Gerolstein, Germany
- Average sunshine days in September: 12.8 days
The month with the most sunshine days is October (14.5 days).
The month with the least sunshine days is June (7.5 days).
Average UV index in September
Gerolstein, Germany
- 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
Gerolstein, Germany
- Average cloud cover in September: 42
The month with the most cloud cover is December (Cloud cover 67).
The month with the least cloud cover is August (Cloud cover 39).
Average visibility in September
Gerolstein, Germany
- Average visibility in September: 8km
The months with the highest visibility are April and August (9km).
The months with the lowest visibility are January, October, November and December (7km).
