September weather forecastAhl, Denmark
September
Weather in September
The first month of the autumn, September, is still a refreshing month in Ahl, Denmark, with an average temperature fluctuating between 13°C (55.4°F) and 16.2°C (61.2°F).Temperature
The onset of September is marked by a minor decrease in temperature, transitioning from an enjoyable 19.3°C (66.7°F) in August to a still refreshing 16.2°C (61.2°F). September in Ahl is characterized by a steady nighttime low-temperature of 13°C (55.4°F).Humidity
In Ahl, the average relative humidity in September is 79%.Rainfall
In Ahl, in September, during 11.1 rainfall days, 33mm (1.3") of precipitation is typically accumulated. Throughout the year, in Ahl, there are 139.5 rainfall days, and 369mm (14.53") of precipitation is accumulated.Snowfall
April through October are months without snowfall in Ahl.Daylight
In September, the average length of the day in Ahl is 12h and 45min.On the first day of the month, sunrise is at 06:22 and sunset at 20:11. On the last day of September, in Ahl, sunrise is at 07:19 and sunset at 18:54 CEST.
Sunshine
In Ahl, the average sunshine in September is 7.9h.UV index
In Ahl, the average daily maximum UV index in September is 4. A UV Index estimate of 3 to 5 represents a medium health hazard from exposure to the Sun's UV radiation for the ordinary person.Note: In September, the maximum UV index of 4 suggests this advice:
Stay alert. Light-skinned people could suffer burns in less than 30 minutes. The Sun's radiation is especially intense around midday; try to stay in shade during this period. Always opt for UVA and UVB-resistant sunglasses on radiant days.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Ahl, Denmark
- Average high temperature in September: 16.2°C
The warmest months (with the highest average high temperature) are July and August (19.3°C).
The month with the lowest average high temperature is February (2.9°C).
- Average low temperature in September: 13°C
The month with the highest average low temperature is August (15.1°C).
The coldest month (with the lowest average low temperature) is February (0.6°C).
Average pressure in September
Ahl, Denmark
- Average pressure in September: 1014.6mbar
The month with the highest atmospheric pressure is April (1015.4mbar).
The month with the lowest atmospheric pressure is December (1010.1mbar).
Average wind speed in September
Ahl, Denmark
- Average wind speed in September: 20.5km/h
The windiest month (with the highest average wind speed) is December (24.6km/h).
The calmest month (with the lowest average wind speed) is July (17.5km/h).
Average humidity in September
Ahl, Denmark
- Average humidity in September: 79%
The months with the highest relative humidity are January and December (85%).
The month with the lowest relative humidity is May (76%).
Average rainfall in September
Ahl, Denmark
- Average rainfall in September: 33mm
The wettest month (with the highest rainfall) is July (44mm).
The driest month (with the least rainfall) is April (12mm).
Average rainfall days in September
Ahl, Denmark
- Average rainfall days in September: 11.1 days
The month with the highest number of rainy days is July (15 days).
The month with the least rainy days is April (8.3 days).
Average snowfall in September
Ahl, Denmark
- Average snowfall in September: 0mm
The month with the highest snowfall is January (48mm).
The months with the least snowfall are April, May, June, July, August, September and October (0mm).
Average snowfall days in September
Ahl, Denmark
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is February (7 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
Ahl, Denmark
- Average daylight in September: 12h and 42min
The month with the longest days is June (Average daylight: 17h and 36min).
The month with the shortest days is December (Average daylight: 7h and 0min).
- Average sunshine in September: 7h and 54min
The month with the most sunshine is June (Average sunshine: 10h and 42min).
The months with the least sunshine are January and February (Average sunshine: 3h and 24min).
Average sunshine days in September
Ahl, Denmark
- Average sunshine days in September: 17.2 days
The month with the most sunshine days is April (20.3 days).
The month with the least sunshine days is February (11.4 days).
Average UV index in September
Ahl, Denmark
- Average UV index in September: 4
The months with the highest UV index are June and July (UV index 5).
The month with the lowest UV index is January (UV index 1).
Average cloud cover in September
Ahl, Denmark
- Average cloud cover in September: 45
The month with the most cloud cover is February (Cloud cover 67).
The months with the least cloud cover are June, July and August (Cloud cover 38).
Average visibility in September
Ahl, Denmark
- Average visibility in September: 10km
The months with the highest visibility are April, May, June, July, August, September, October, November and December (10km).
The months with the lowest visibility are January, February and March (9km).
