Contents
- Weather in September
- Frequently asked questions
- Average temperature in September
- Average pressure in September
- Average wind speed in September
- Average humidity in September
- Average rainfall in September
- Average rainfall days in September
- Average snowfall in September
- Average snowfall days in September
- Average daylight in September
- Average sunshine in September
- Average sunshine days in September
- Average UV index in September
- Average cloud cover in September
- Average visibility in September
Weather in September
Temperature
During the shift to September, a minor reduction in average high-temperature is observed, shifting from a warm 23°C (73.4°F) in August to an enjoyable 19.1°C (66.4°F). During the nights in September, an average low-temperature of 10.7°C (51.3°F) is observed in Ahrem.Humidity
The average relative humidity in September in Ahrem is 77%.Rainfall
In Ahrem, in September, during 9.5 rainfall days, 20mm (0.79") of precipitation is typically accumulated. Throughout the year, in Ahrem, there are 133.8 rainfall days, and 304mm (11.97") of precipitation is accumulated.Snowfall
April through October are months without snowfall in Ahrem, Germany.Daylight
In Ahrem, the average length of the day in September is 12h and 38min.On the first day of September, sunrise is at 06:47 and sunset at 20:17. On the last day of the month, sunrise is at 07:32 and sunset at 19:12 CEST.
Sunshine
In Ahrem, the average sunshine in September is 8.3h.UV index
In Ahrem, the average daily maximum UV index in September 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: The maximum daily UV index of 4 in September interprets into the following recommendations:
Take precautions - Protection against sun damage is advised. Limiting sun exposure during midday hours helps in reducing the harmful effects of UV radiation. On bright days sunglasses that block both UVA and UVB rays should be worn. A hat with a wide brim is extremely helpful, as it can prevent roughly 50% of UV radiation from reaching the eyes.
Frequently asked questions
What is the usual temperature for Ahrem in September?
What is the average humidity in September in Ahrem?
How much does it rain in Ahrem in September?
When it does not snow in Ahrem?
What is the average length of the day in September in Ahrem?
When are sunrise and sunset in September in Ahrem?
How long on average sun shines in September in Ahrem?
How high is the UV index in September in Ahrem?
Average temperature in September
Ahrem, Germany
- Average high temperature in September: 19.1°C
The warmest month (with the highest average high temperature) is August (23°C).
The month with the lowest average high temperature is January (4.1°C).
- Average low temperature in September: 10.7°C
The month with the highest average low temperature is August (13.8°C).
The coldest months (with the lowest average low temperature) are January and February (0.1°C).
Average pressure in September
Ahrem, Germany
- Average pressure in September: 1017.6mbar
The month with the highest atmospheric pressure is September (1017.6mbar).
The month with the lowest atmospheric pressure is November (1013.4mbar).
Average wind speed in September
Ahrem, Germany
- Average wind speed in September: 10.4km/h
The windiest months (with the highest average wind speed) are February and December (15.4km/h).
The calmest month (with the lowest average wind speed) is August (10.2km/h).
Average humidity in September
Ahrem, Germany
- Average humidity in September: 77%
The months with the highest relative humidity are January and December (87%).
The month with the lowest relative humidity is August (73%).
Average rainfall in September
Ahrem, Germany
- Average rainfall in September: 20mm
The wettest month (with the highest rainfall) is December (33mm).
The driest month (with the least rainfall) is April (12mm).
Average rainfall days in September
Ahrem, Germany
- Average rainfall days in September: 9.5 days
The month with the highest number of rainy days is July (14.3 days).
The month with the least rainy days is April (9.2 days).
Average snowfall in September
Ahrem, Germany
- Average snowfall in September: 0mm
The month with the highest snowfall is February (35mm).
The months with the least snowfall are April, May, June, July, August, September and October (0mm).
Average snowfall days in September
Ahrem, Germany
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (4.5 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
Ahrem, Germany
- Average daylight in September: 12h and 4min
The month with the longest days is June (Average daylight: 16h and 24min).
The month with the shortest days is December (Average daylight: 8h and 0min).
- Average sunshine in September: 8h and 2min
The month with the most sunshine is July (Average sunshine: 9h and 48min).
The month with the least sunshine is December (Average sunshine: 3h and 48min).
Average sunshine days in September
Ahrem, Germany
- Average sunshine days in September: 19.3 days
The month with the most sunshine days is October (20.5 days).
The month with the least sunshine days is December (14.7 days).
Average UV index in September
Ahrem, 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
Ahrem, Germany
- Average cloud cover in September: 39
The month with the most cloud cover is December (Cloud cover 60).
The month with the least cloud cover is August (Cloud cover 36).
Average visibility in September
Ahrem, Germany
- 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).
Ahrem, Germany
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