September weather forecastMettendorf, Germany
September
Weather in September
The first month of the autumn, September, is also an enjoyable month in Mettendorf, Germany, with an average temperature fluctuating between 8.1°C (46.6°F) and 17.2°C (63°F).Temperature
September sees a slight reduction in average high-temperature, with a shift from a pleasant 20.9°C (69.6°F) in August to an enjoyable 17.2°C (63°F). Mettendorf experiences a mean temperature of 8.1°C (46.6°F) during September nights.Humidity
The average relative humidity in September in Mettendorf is 84%.Rainfall
In Mettendorf, Germany, during September, the rain falls for 12.5 days and regularly aggregates up to 34mm (1.34") of precipitation. In Mettendorf, during the entire year, the rain falls for 166.4 days and collects up to 566mm (22.28") of precipitation.Snowfall
In Mettendorf, snow does not fall in June through September.Daylight
The average length of the day in September is 12h and 37min.On the first day of September in Mettendorf, sunrise is at 06:50 and sunset at 20:18. On the last day of the month, sunrise is at 07:33 and sunset at 19:15 CEST.
Sunshine
In Mettendorf, the average sunshine in September is 7.4h.UV index
In Mettendorf, the average daily maximum UV index in September is 3. A UV Index value of 3 to 5 symbolizes a moderate health risk from exposure to the Sun's UV radiation for the ordinary person.Note: The maximum UV index of 3 during September leads to these instructions:
Preventative actions are necessary - The mandate to avoid skin and eye damage is in place. Avoiding the Sun during its peak radiation time around midday is a healthy practice. Always opt for UVA and UVB-resistant sunglasses on radiant days.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Mettendorf, Germany
- Average high temperature in September: 17.2°C
The warmest month (with the highest average high temperature) is August (20.9°C).
The month with the lowest average high temperature is January (2.4°C).
- Average low temperature in September: 8.1°C
The month with the highest average low temperature is July (11.2°C).
The coldest month (with the lowest average low temperature) is January (-1.9°C).
Average pressure in September
Mettendorf, Germany
- Average pressure in September: 1017.8mbar
The month with the highest atmospheric pressure is September (1017.8mbar).
The month with the lowest atmospheric pressure is November (1013.7mbar).
Average wind speed in September
Mettendorf, Germany
- Average wind speed in September: 10.4km/h
The windiest month (with the highest average wind speed) is February (16.2km/h).
The calmest month (with the lowest average wind speed) is August (9.9km/h).
Average humidity in September
Mettendorf, Germany
- Average humidity in September: 84%
The months with the highest relative humidity are January, November and December (92%).
The month with the lowest relative humidity is April (79%).
Average rainfall in September
Mettendorf, Germany
- Average rainfall in September: 34mm
The wettest month (with the highest rainfall) is December (66mm).
The driest month (with the least rainfall) is April (31mm).
Average rainfall days in September
Mettendorf, Germany
- Average rainfall days in September: 12.5 days
The months with the highest number of rainy days are June and July (17.3 days).
The month with the least rainy days is February (9.2 days).
Average snowfall in September
Mettendorf, Germany
- Average snowfall in September: 0mm
The month with the highest snowfall is February (105mm).
The months with the least snowfall are June, July, August and September (0mm).
Average snowfall days in September
Mettendorf, Germany
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (10.3 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Mettendorf, 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 12min).
- Average sunshine in September: 7h and 24min
The months with the most sunshine are July and August (Average sunshine: 8h and 48min).
The month with the least sunshine is December (Average sunshine: 2h and 42min).
Average sunshine days in September
Mettendorf, Germany
- Average sunshine days in September: 15 days
The month with the most sunshine days is October (15.9 days).
The month with the least sunshine days is June (10.3 days).
Average UV index in September
Mettendorf, Germany
- Average UV index in September: 3
The month with the highest UV index is July (UV index 5).
The months with the lowest UV index are January, February, March, October, November and December (UV index 2).
Average cloud cover in September
Mettendorf, Germany
- Average cloud cover in September: 47
The month with the most cloud cover is December (Cloud cover 75).
The month with the least cloud cover is August (Cloud cover 43).
Average visibility in September
Mettendorf, Germany
- Average visibility in September: 8km
The month with the highest visibility is April (9km).
The months with the lowest visibility are November and December (7km).
