September weather forecastAhlem, Germany
September
Weather in September
September, the first month of the autumn in Ahlem, is still a refreshing month, with an average temperature ranging between min 10.8°C (51.4°F) and max 19.1°C (66.4°F).Temperature
The onset of September entails a subtle temperature shift, as the average high-temperature eases from a moderately hot 23.8°C (74.8°F) in August to a refreshing 19.1°C (66.4°F). In Ahlem, September nights cool down to an average of 10.8°C (51.4°F).Humidity
In Ahlem, the average relative humidity in September is 76%.Rainfall
In Ahlem, Germany, in September, during 13.8 rainfall days, 32mm (1.26") of precipitation is typically accumulated. Throughout the year, in Ahlem, there are 187.8 rainfall days, and 489mm (19.25") of precipitation is accumulated.Snowfall
In Ahlem, snow does not fall in May through October.Daylight
The average length of the day in September in Ahlem is 12h and 40min.On the first day of the month, sunrise is at 06:33 and sunset at 20:08. On the last day of September, sunrise is at 07:21 and sunset at 19:00 CEST.
Sunshine
In September, the average sunshine in Ahlem, Germany, is 8.3h.UV index
In September, the average daily maximum UV index in Ahlem, Germany, is 4. A UV Index of 3 to 5 symbolizes a moderate threat to health from unsafe exposure to UV radiation for average individuals.Note: In September, a daily UV index of 4 turns into the following recommendations:
Preventative actions are necessary - Recommendations to ward off sunburn are given. Sun's radiation is most powerful around mid-day, so it's best to limit outdoor activities during this time. Enhance your sun protection with tightly woven, yet airy clothing.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Ahlem, Germany
- Average high temperature in September: 19.1°C
The warmest month (with the highest average high temperature) is August (23.8°C).
The month with the lowest average high temperature is January (3°C).
- Average low temperature in September: 10.8°C
The month with the highest average low temperature is August (14°C).
The coldest month (with the lowest average low temperature) is January (-0.9°C).
Average pressure in September
Ahlem, Germany
- Average pressure in September: 1017.2mbar
The month with the highest atmospheric pressure is September (1017.2mbar).
The month with the lowest atmospheric pressure is November (1013mbar).
Average wind speed in September
Ahlem, Germany
- Average wind speed in September: 11.6km/h
The windiest month (with the highest average wind speed) is December (16.2km/h).
The calmest month (with the lowest average wind speed) is August (11.2km/h).
Average humidity in September
Ahlem, Germany
- Average humidity in September: 76%
The months with the highest relative humidity are January and December (88%).
The month with the lowest relative humidity is August (70%).
Average rainfall in September
Ahlem, Germany
- Average rainfall in September: 32mm
The wettest month (with the highest rainfall) is July (53mm).
The driest month (with the least rainfall) is April (22mm).
Average rainfall days in September
Ahlem, Germany
- Average rainfall days in September: 13.8 days
The months with the highest number of rainy days are May and July (18.3 days).
The month with the least rainy days is February (13.4 days).
Average snowfall in September
Ahlem, Germany
- Average snowfall in September: 0mm
The month with the highest snowfall is January (59mm).
The months with the least snowfall are May, June, July, August, September and October (0mm).
Average snowfall days in September
Ahlem, Germany
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (8.9 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
Ahlem, Germany
- Average daylight in September: 12h and 42min
The month with the longest days is June (Average daylight: 16h and 42min).
The month with the shortest days is December (Average daylight: 7h and 48min).
- Average sunshine in September: 8h and 18min
The month with the most sunshine is August (Average sunshine: 9h and 48min).
The month with the least sunshine is December (Average sunshine: 3h and 30min).
Average sunshine days in September
Ahlem, Germany
- Average sunshine days in September: 12.8 days
The month with the most sunshine days is October (14.1 days).
The month with the least sunshine days is December (7.5 days).
Average UV index in September
Ahlem, 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
Ahlem, Germany
- Average cloud cover in September: 42
The month with the most cloud cover is December (Cloud cover 66).
The month with the least cloud cover is August (Cloud cover 37).
Average visibility in September
Ahlem, Germany
- Average visibility in September: 9km
The months with the highest visibility are March, April, May, June, July, August, September and October (9km).
The months with the lowest visibility are January, February, November and December (8km).
