September weather forecastBirkerød, Denmark
September
Weather in September
The first month of the autumn, September, is still a refreshing month in Birkerød, Denmark, with an average temperature fluctuating between 13°C (55.4°F) and 16.6°C (61.9°F).Temperature
September signifies a minor drop in average high-temperature, transitioning from a pleasant 20.3°C (68.5°F) in August to a comfortable 16.6°C (61.9°F). September nights reveal a minor deviation from daytime highs, with a mean low-temperature of 13°C (55.4°F).Humidity
In September, the average relative humidity is 79%.Rainfall
In September, the rain falls for 16 days. Throughout September, 44mm (1.73") of precipitation is accumulated. Throughout the year, there are 177.1 rainfall days, and 475mm (18.7") of precipitation is accumulated.Snowfall
May through October are months without snowfall.Daylight
In September, the average length of the day is 12h and 44min.On the first day of September, sunrise is at 06:16 and sunset at 20:04. On the last day of the month, sunrise is at 07:12 and sunset at 18:47 CEST.
Sunshine
In Birkerød, the average sunshine in September is 7.8h.UV index
The average daily maximum UV index in September is 4. A UV Index of 3 to 5 symbolizes a medium health hazard from exposure to the Sun's UV rays for the average person.Note: In September, the maximum UV index of 4 suggests this advice:
Take precautions. Light skin individuals may get burned in less than 30 minutes. When the Sun's UV radiation is most intense during midday, it's best to find shade and limit exposure. For excellent sun protection for the eyes, ears, face, and neck, consider a wide-brim hat.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Birkerød, Denmark
- Average high temperature in September: 16.6°C
The warmest months (with the highest average high temperature) are July and August (20.3°C).
The month with the lowest average high temperature is February (2.7°C).
- Average low temperature in September: 13°C
The month with the highest average low temperature is August (15.4°C).
The coldest month (with the lowest average low temperature) is February (-0.2°C).
Average pressure in September
Birkerød, Denmark
- Average pressure in September: 1015.2mbar
The month with the highest atmospheric pressure is April (1015.5mbar).
The month with the lowest atmospheric pressure is December (1011mbar).
Average wind speed in September
Birkerød, Denmark
- Average wind speed in September: 17.9km/h
The windiest month (with the highest average wind speed) is December (21.2km/h).
The calmest month (with the lowest average wind speed) is July (14.9km/h).
Average humidity in September
Birkerød, Denmark
- Average humidity in September: 79%
The months with the highest relative humidity are January, February, November and December (86%).
The months with the lowest relative humidity are April, May and June (75%).
Average rainfall in September
Birkerød, Denmark
- Average rainfall in September: 44mm
The wettest month (with the highest rainfall) is August (61mm).
The driest month (with the least rainfall) is April (17mm).
Average rainfall days in September
Birkerød, Denmark
- Average rainfall days in September: 16 days
The month with the highest number of rainy days is August (18.7 days).
The month with the least rainy days is February (9.9 days).
Average snowfall in September
Birkerød, Denmark
- Average snowfall in September: 0mm
The month with the highest snowfall is January (55mm).
The months with the least snowfall are May, June, July, August, September and October (0mm).
Average snowfall days in September
Birkerød, Denmark
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (8.8 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
Birkerød, Denmark
- Average daylight in September: 12h and 42min
The month with the longest days is June (Average daylight: 17h and 30min).
The month with the shortest days is December (Average daylight: 7h and 6min).
- Average sunshine in September: 7h and 48min
The months with the most sunshine are June and August (Average sunshine: 9h and 36min).
The month with the least sunshine is December (Average sunshine: 3h and 6min).
Average sunshine days in September
Birkerød, Denmark
- Average sunshine days in September: 10.7 days
The month with the most sunshine days is April (16.5 days).
The month with the least sunshine days is December (6.6 days).
Average UV index in September
Birkerød, Denmark
- Average UV index in September: 4
The months with the highest UV index are June, July and August (UV index 5).
The month with the lowest UV index is January (UV index 1).
Average cloud cover in September
Birkerød, Denmark
- Average cloud cover in September: 46
The month with the most cloud cover is December (Cloud cover 69).
The months with the least cloud cover are June and August (Cloud cover 38).
Average visibility in September
Birkerød, Denmark
- Average visibility in September: 10km
The months with the highest visibility are April, May, June, July, August and September (10km).
The months with the lowest visibility are January, February, March, October, November and December (9km).
