September weather forecastMerschweiller, France
September
Weather in September
The first month of the autumn, September, is still a comfortable month in Merschweiller, France, with temperature in the range of an average low of 9.5°C (49.1°F) and an average high of 19.2°C (66.6°F).Temperature
The transition into September involves a small decrease in the average high-temperature, dipping slightly from a moderately hot 23.1°C (73.6°F) in August to a comfortable 19.2°C (66.6°F). During September, Merschweiller consistently records a temperature low averaging a chilly 9.5°C (49.1°F).Humidity
In September, the average relative humidity in Merschweiller is 79%.Rainfall
In Merschweiller, France, during September, the rain falls for 11.7 days and regularly aggregates up to 40mm (1.57") of precipitation. In Merschweiller, during the entire year, the rain falls for 185.5 days and collects up to 593mm (23.35") of precipitation.Snowfall
April through September are months without snowfall.Daylight
In September, the average length of the day is 12h and 36min.On the first day of the month, sunrise is at 06:51 and sunset at 20:17. On the last day of September, in Merschweiller, sunrise is at 07:33 and sunset at 19:14 CEST.
Sunshine
In September, the average sunshine in Merschweiller is 8.1h.UV index
The average daily maximum UV index in September is 3. A UV Index value of 3 to 5 symbolizes a moderate health risk from unsafe exposure to UV radiation for ordinary individuals.Note: The average daily UV index of 3 in September transforms into the following instructions:
Prioritize safety - Recommendations to avert sunburn are shared. Direct Sun exposure should be minimized especially during midday when radiation is most intense. For a sun-safe wardrobe, go for clothes that are tightly woven and generously sized.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Merschweiller, France
- Average high temperature in September: 19.2°C
The warmest month (with the highest average high temperature) is August (23.1°C).
The month with the lowest average high temperature is January (3.5°C).
- Average low temperature in September: 9.5°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 (-0.7°C).
Average pressure in September
Merschweiller, France
- Average pressure in September: 1018mbar
The month with the highest atmospheric pressure is December (1018.6mbar).
The month with the lowest atmospheric pressure is November (1014.2mbar).
Average wind speed in September
Merschweiller, France
- Average wind speed in September: 10.1km/h
The windiest month (with the highest average wind speed) is February (15.3km/h).
The calmest month (with the lowest average wind speed) is August (9.6km/h).
Average humidity in September
Merschweiller, France
- Average humidity in September: 79%
The month with the highest relative humidity is December (90%).
The month with the lowest relative humidity is August (75%).
Average rainfall in September
Merschweiller, France
- Average rainfall in September: 40mm
The wettest month (with the highest rainfall) is December (71mm).
The driest month (with the least rainfall) is April (36mm).
Average rainfall days in September
Merschweiller, France
- Average rainfall days in September: 11.7 days
The month with the highest number of rainy days is May (18.8 days).
The month with the least rainy days is September (11.7 days).
Average snowfall in September
Merschweiller, France
- Average snowfall in September: 0mm
The month with the highest snowfall is December (55mm).
The months with the least snowfall are April, May, June, July, August and September (0mm).
Average snowfall days in September
Merschweiller, France
- 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
Merschweiller, France
- 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 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 12min).
Average sunshine days in September
Merschweiller, France
- Average sunshine days in September: 15.5 days
The month with the most sunshine days is September (15.5 days).
The month with the least sunshine days is December (8.4 days).
Average UV index in September
Merschweiller, France
- 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
Merschweiller, France
- Average cloud cover in September: 39
The month with the most cloud cover is December (Cloud cover 68).
The month with the least cloud cover is August (Cloud cover 36).
Average visibility in September
Merschweiller, France
- 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, February, September, October, November and December (8km).
