September weather forecastAltenwerder, Germany
September
Weather in September
September, the first month of the autumn in Altenwerder, is still a comfortable month, with an average temperature varying between 10.9°C (51.6°F) and 18.7°C (65.7°F).Temperature
The arrival of September signals a subtle shift in temperature, down from an agreeable 22.8°C (73°F) in August to an enjoyable 18.7°C (65.7°F). In Altenwerder, an average temperature of 10.9°C (51.6°F) is noted during September nights.Humidity
The average relative humidity in September in Altenwerder, Germany, is 80%.Rainfall
In September, the rain falls for 14.5 days. Throughout September, 30mm (1.18") of precipitation is accumulated. In Altenwerder, Germany, during the entire year, the rain falls for 182.3 days and collects up to 438mm (17.24") of precipitation.Snowfall
May through October are months without snowfall in Altenwerder.Daylight
The average length of the day in September is 12h and 41min.On the first day of September in Altenwerder, sunrise is at 06:30 and sunset at 20:09. On the last day of the month, sunrise is at 07:21 and sunset at 18:59 CEST.
Sunshine
The average sunshine in September in Altenwerder is 7.7h.UV index
The average daily maximum UV index in September is 4. A UV Index reading of 3 to 5 represents a moderate health risk from exposure to the Sun's UV radiation for ordinary individuals.Note: A maximum daily UV index of 4 during September morphs into the following directions:
Prioritize safety - The need to safeguard skin and eyes from harm is emphasized. The midday Sun can be harmful due to its potent UV radiation; seek shade and reduce exposure. Safeguard your eyes, ears, and face from sun rays with the aid of a wide-brim hat.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Altenwerder, Germany
- Average high temperature in September: 18.7°C
The warmest month (with the highest average high temperature) is August (22.8°C).
The month with the lowest average high temperature is January (2.8°C).
- Average low temperature in September: 10.9°C
The month with the highest average low temperature is August (13.8°C).
The coldest month (with the lowest average low temperature) is January (-0.6°C).
Average pressure in September
Altenwerder, Germany
- Average pressure in September: 1016.4mbar
The month with the highest atmospheric pressure is September (1016.4mbar).
The month with the lowest atmospheric pressure is November (1012mbar).
Average wind speed in September
Altenwerder, Germany
- Average wind speed in September: 11.9km/h
The windiest month (with the highest average wind speed) is December (17.3km/h).
The calmest month (with the lowest average wind speed) is August (11.5km/h).
Average humidity in September
Altenwerder, Germany
- Average humidity in September: 80%
The months with the highest relative humidity are January and December (89%).
The month with the lowest relative humidity is April (75%).
Average rainfall in September
Altenwerder, Germany
- Average rainfall in September: 30mm
The wettest months (with the highest rainfall) are June and July (51mm).
The driest month (with the least rainfall) is April (20mm).
Average rainfall days in September
Altenwerder, Germany
- Average rainfall days in September: 14.5 days
The month with the highest number of rainy days is July (19.8 days).
The month with the least rainy days is February (11.5 days).
Average snowfall in September
Altenwerder, Germany
- Average snowfall in September: 0mm
The month with the highest snowfall is January (49mm).
The months with the least snowfall are May, June, July, August, September and October (0mm).
Average snowfall days in September
Altenwerder, Germany
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (7.3 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).
Average daylight in September /
Average sunshine in September
Altenwerder, Germany
- Average daylight in September: 12h and 42min
The month with the longest days is June (Average daylight: 16h and 54min).
The month with the shortest days is December (Average daylight: 7h and 36min).
- Average sunshine in September: 7h and 42min
The month with the most sunshine is August (Average sunshine: 9h and 18min).
The month with the least sunshine is December (Average sunshine: 3h and 6min).
Average sunshine days in September
Altenwerder, Germany
- Average sunshine days in September: 12.7 days
The month with the most sunshine days is October (14.4 days).
The month with the least sunshine days is June (8.9 days).
Average UV index in September
Altenwerder, 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
Altenwerder, Germany
- Average cloud cover in September: 47
The month with the most cloud cover is December (Cloud cover 71).
The month with the least cloud cover is August (Cloud cover 40).
Average visibility in September
Altenwerder, Germany
- Average visibility in September: 9km
The months with the highest visibility are February, March, April, May, June, July, August and September (9km).
The months with the lowest visibility are January, October, November and December (8km).
