September weather forecastAppenweier, Germany
September
Weather in September
The first month of the autumn, September, is still a pleasant month in Appenweier, Germany, with an average temperature fluctuating between 9.7°C (49.5°F) and 20.2°C (68.4°F).Temperature
The onset of September aligns with a soft reduction in the average high-temperature, gently falling from a moderately hot 24.7°C (76.5°F) in August to a pleasant 20.2°C (68.4°F). In the month of September, the nighttime temperature in Appenweier, Germany, dips to a steady average of 9.7°C (49.5°F).Humidity
The average relative humidity in September in Appenweier is 77%.Rainfall
September is the month with the least rainfall. Rain falls for 10.4 days and accumulates 28mm (1.1") of precipitation.Snowfall
In Appenweier, snow does not fall in April through September.Daylight
In Appenweier, the average length of the day in September is 12h and 35min.On the first day of the month, sunrise is at 06:46 and sunset at 20:09. On the last day of September, sunrise is at 07:26 and sunset at 19:09 CEST.
Sunshine
In Appenweier, the average sunshine in September is 9h.UV index
In September, the average daily maximum UV index in Appenweier is 4. A UV Index estimate of 3 to 5 represents a moderate health risk from exposure to the Sun's UV rays for average individuals.Note: The maximum daily UV index, 4 in September, converts into the following recommendations:
Make use of precautions - Suggestions to resist sunburn are communicated. Avoiding the Sun's peak radiation during midday hours is essential for health and safety. Sunglasses providing both UVA and UVB protection are non-negotiable on sunlit days.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Appenweier, Germany
- Average high temperature in September: 20.2°C
The warmest month (with the highest average high temperature) is August (24.7°C).
The month with the lowest average high temperature is January (3.9°C).
- Average low temperature in September: 9.7°C
The month with the highest average low temperature is August (13.4°C).
The coldest month (with the lowest average low temperature) is January (-1.1°C).
Average pressure in September
Appenweier, Germany
- Average pressure in September: 1018.5mbar
The month with the highest atmospheric pressure is December (1020mbar).
The month with the lowest atmospheric pressure is November (1015.3mbar).
Average wind speed in September
Appenweier, Germany
- Average wind speed in September: 7.7km/h
The windiest month (with the highest average wind speed) is December (10.6km/h).
The calmest month (with the lowest average wind speed) is August (7.6km/h).
Average humidity in September
Appenweier, Germany
- Average humidity in September: 77%
The month with the highest relative humidity is January (87%).
The months with the lowest relative humidity are July and August (73%).
Average rainfall in September
Appenweier, Germany
- Average rainfall in September: 28mm
The wettest month (with the highest rainfall) is December (71mm).
The driest month (with the least rainfall) is September (28mm).
Average rainfall days in September
Appenweier, Germany
- Average rainfall days in September: 10.4 days
The month with the highest number of rainy days is May (19.3 days).
The month with the least rainy days is September (10.4 days).
Average snowfall in September
Appenweier, Germany
- Average snowfall in September: 0mm
The month with the highest snowfall is January (73mm).
The months with the least snowfall are April, May, June, July, August and September (0mm).
Average snowfall days in September
Appenweier, Germany
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (7.9 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
Appenweier, Germany
- Average daylight in September: 12h and 36min
The month with the longest days is June (Average daylight: 16h and 6min).
The month with the shortest days is December (Average daylight: 8h and 24min).
- Average sunshine in September: 9h and 0min
The months with the most sunshine are July and August (Average sunshine: 10h and 18min).
The months with the least sunshine are January and December (Average sunshine: 4h and 30min).
Average sunshine days in September
Appenweier, Germany
- Average sunshine days in September: 16.4 days
The months with the most sunshine days are September and October (16.4 days).
The month with the least sunshine days is May (9.1 days).
Average UV index in September
Appenweier, Germany
- Average UV index in September: 4
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
Appenweier, Germany
- Average cloud cover in September: 33
The months with the most cloud cover are January and December (Cloud cover 55).
The month with the least cloud cover is August (Cloud cover 30).
Average visibility in September
Appenweier, Germany
- Average visibility in September: 9km
The months with the highest visibility are March, April, May, June, July, August and September (9km).
The months with the lowest visibility are January, February, October, November and December (8km).
