September weather forecastLettweiler, Germany
September
Weather in September
The first month of the autumn, September, is also an enjoyable month in Lettweiler, Germany, with temperature in the range of an average low of 9.7°C (49.5°F) and an average high of 19.3°C (66.7°F).Temperature
September's arrival coincides with a soft drop in the average high-temperature, subtly decreasing from August's moderately hot 23.8°C (74.8°F) to a refreshing 19.3°C (66.7°F). Throughout the nights in September, Lettweiler experiences an average low-temperature of 9.7°C (49.5°F).Humidity
In Lettweiler, the average relative humidity in September is 78%.Rainfall
In Lettweiler, Germany, in September, it is raining for 12.2 days, with typically 28mm (1.1") of accumulated precipitation. In Lettweiler, during the entire year, the rain falls for 176 days and collects up to 462mm (18.19") of precipitation.Snowfall
In Lettweiler, snow does not fall in May through October.Daylight
The average length of the day in September is 12h and 36min.On the first day of September in Lettweiler, sunrise is at 06:45 and sunset at 20:12. On the last day of the month, sunrise is at 07:28 and sunset at 19:09 CEST.
Sunshine
The average sunshine in September in Lettweiler is 8.4h.UV index
In September, the average daily maximum UV index in Lettweiler is 4. A UV Index value of 3 to 5 symbolizes a medium vulnerability from unsafe exposure to UV radiation for average individuals.Note: The maximum daily UV index of 4 in September interprets into the following recommendations:
Take necessary precautions - Protection from skin and eye injury is mandatory. Minimize direct exposure to the Sun during midday when its radiation is at its peak. Opt for tightly woven and loose clothing to enhance protection from the Sun.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Lettweiler, Germany
- Average high temperature in September: 19.3°C
The warmest month (with the highest average high temperature) is July (24.4°C).
The month with the lowest average high temperature is January (3.3°C).
- Average low temperature in September: 9.7°C
The month with the highest average low temperature is August (13.3°C).
The coldest month (with the lowest average low temperature) is January (-1.3°C).
Average pressure in September
Lettweiler, Germany
- Average pressure in September: 1018.1mbar
The month with the highest atmospheric pressure is December (1018.4mbar).
The month with the lowest atmospheric pressure is November (1014.5mbar).
Average wind speed in September
Lettweiler, Germany
- Average wind speed in September: 8.9km/h
The windiest months (with the highest average wind speed) are February and March (12.1km/h).
The calmest month (with the lowest average wind speed) is August (8.7km/h).
Average humidity in September
Lettweiler, Germany
- Average humidity in September: 78%
The months with the highest relative humidity are January and December (89%).
The months with the lowest relative humidity are July and August (72%).
Average rainfall in September
Lettweiler, Germany
- Average rainfall in September: 28mm
The wettest month (with the highest rainfall) is July (58mm).
The driest month (with the least rainfall) is April (25mm).
Average rainfall days in September
Lettweiler, Germany
- Average rainfall days in September: 12.2 days
The month with the highest number of rainy days is July (18.8 days).
The month with the least rainy days is February (11.9 days).
Average snowfall in September
Lettweiler, Germany
- Average snowfall in September: 0mm
The months with the highest snowfall are January and February (44mm).
The months with the least snowfall are May, June, July, August, September and October (0mm).
Average snowfall days in September
Lettweiler, Germany
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (7.1 days).
The months with the least snowfall days are May, June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Lettweiler, Germany
- Average daylight in September: 12h and 36min
The month with the longest days is June (Average daylight: 16h and 12min).
The month with the shortest days is December (Average daylight: 8h and 12min).
- Average sunshine in September: 8h and 24min
The month with the most sunshine is July (Average sunshine: 10h and 6min).
The month with the least sunshine is December (Average sunshine: 3h and 24min).
Average sunshine days in September
Lettweiler, Germany
- Average sunshine days in September: 14.3 days
The month with the most sunshine days is October (15 days).
The month with the least sunshine days is December (9.2 days).
Average UV index in September
Lettweiler, Germany
- Average UV index in September: 4
The months with the highest UV index are June, July and August (UV index 5).
The months with the lowest UV index are January, February, November and December (UV index 2).
Average cloud cover in September
Lettweiler, Germany
- Average cloud cover in September: 39
The month with the most cloud cover is December (Cloud cover 66).
The month with the least cloud cover is August (Cloud cover 35).
Average visibility in September
Lettweiler, Germany
- Average visibility in September: 8km
The months with the highest visibility are March, April, May, June, July and August (9km).
The months with the lowest visibility are January, November and December (7km).
