September weather forecastSondernach, France
September
Weather in September
September, the first month of the autumn in Sondernach, is also an enjoyable month, with an average temperature fluctuating between 9.6°C (49.3°F) and 19.9°C (67.8°F).Temperature
The shift from August to September coincides with a small decrease in the average high-temperature, down to a comfortable 19.9°C (67.8°F) from a moderately hot 24.3°C (75.7°F). Throughout September nights, Sondernach experiences a consistent temperature average of 9.6°C (49.3°F).Humidity
The average relative humidity in September in Sondernach is 78%.Rainfall
September is the month with the least rainfall in Sondernach. Rain falls for 10.8 days and accumulates 20mm (0.79") of precipitation.Snowfall
April through September are months without snowfall.Daylight
In Sondernach, the average length of the day in September is 12h and 34min.On the first day of September, sunrise is at 06:50 and sunset at 20:12. On the last day of the month, sunrise is at 07:30 and sunset at 19:12 CEST.
Sunshine
In Sondernach, the average sunshine in September is 9.1h.UV index
In September, the average daily maximum UV index is 4. A UV Index value of 3 to 5 symbolizes a moderate threat to health from exposure to the Sun's UV radiation for the ordinary person.Note: In September, a regular UV index of 4 translates into these guidelines:
Adopt protective measures - Suggestions to resist sunburn are offered. For health reasons, it's advisable to reduce direct sun exposure during peak hours around midday. Wearing sunglasses with both UVA and UVB protection effectively reduces sun-induced eye damage.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Sondernach, France
- Average high temperature in September: 19.9°C
The warmest month (with the highest average high temperature) is August (24.3°C).
The month with the lowest average high temperature is January (3.8°C).
- Average low temperature in September: 9.6°C
The month with the highest average low temperature is August (13.1°C).
The coldest months (with the lowest average low temperature) are January and February (-1.3°C).
Average pressure in September
Sondernach, France
- Average pressure in September: 1018.6mbar
The month with the highest atmospheric pressure is December (1020.5mbar).
The month with the lowest atmospheric pressure is November (1015.5mbar).
Average wind speed in September
Sondernach, France
- Average wind speed in September: 7.3km/h
The windiest month (with the highest average wind speed) is February (10.4km/h).
The calmest month (with the lowest average wind speed) is August (6.7km/h).
Average humidity in September
Sondernach, France
- Average humidity in September: 78%
The month with the highest relative humidity is January (85%).
The months with the lowest relative humidity are April, July and August (76%).
Average rainfall in September
Sondernach, France
- Average rainfall in September: 20mm
The wettest month (with the highest rainfall) is June (49mm).
The driest month (with the least rainfall) is September (20mm).
Average rainfall days in September
Sondernach, France
- Average rainfall days in September: 10.8 days
The month with the highest number of rainy days is May (17.3 days).
The month with the least rainy days is November (10.4 days).
Average snowfall in September
Sondernach, France
- Average snowfall in September: 0mm
The month with the highest snowfall is January (38mm).
The months with the least snowfall are April, May, June, July, August and September (0mm).
Average snowfall days in September
Sondernach, France
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (6.4 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
Sondernach, France
- 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: 9h and 6min
The months with the most sunshine are July and August (Average sunshine: 10h and 30min).
The month with the least sunshine is December (Average sunshine: 5h and 0min).
Average sunshine days in September
Sondernach, France
- Average sunshine days in September: 15.8 days
The month with the most sunshine days is October (18.1 days).
The month with the least sunshine days is June (9.8 days).
Average UV index in September
Sondernach, France
- 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
Sondernach, France
- Average cloud cover in September: 31
The month with the most cloud cover is December (Cloud cover 50).
The month with the least cloud cover is August (Cloud cover 29).
Average visibility in September
Sondernach, France
- Average visibility in September: 9km
The months with the highest visibility are February, March, April, May, June, July, August, September, October and November (9km).
The months with the lowest visibility are January and December (8km).
