September weather forecastHerstedøster, Denmark
September
Weather in September
September, the first month of the autumn in Herstedøster, is still a refreshing month, with an average temperature fluctuating between 13.2°C (55.8°F) and 16.5°C (61.7°F).Temperature
Herstedøster observes a small decrease in the average high-temperature with the arrival of September, falling from August's pleasant 20.3°C (68.5°F) to a refreshing 16.5°C (61.7°F). September introduces a small decrease to a nighttime average of 13.2°C (55.8°F).Humidity
In Herstedøster, the average relative humidity in September is 78%.Rainfall
In Herstedøster, during September, the rain falls for 14.9 days and regularly aggregates up to 29mm (1.14") of precipitation. Throughout the year, in Herstedøster, there are 163.1 rainfall days, and 345mm (13.58") of precipitation is accumulated.Snowfall
In Herstedøster, snow does not fall in May through October.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 18:48 CEST.
Sunshine
In Herstedøster, the average sunshine in September is 7.9h.UV index
In September, the average daily maximum UV index in Herstedøster is 4. A UV Index estimate of 3 to 5 represents a medium vulnerability from unsafe exposure to UV radiation for the ordinary person.Note: A daily maximum UV index of 4 in September translates into the following instructions:
Heed the precautions - It is counselled to guard against solar damage. Limiting sun exposure during midday hours helps in reducing the harmful effects of UV radiation. Stay sun-safe with clothing that is both closely woven and worn loosely.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Herstedøster, Denmark
- Average high temperature in September: 16.5°C
The warmest month (with the highest average high temperature) is August (20.3°C).
The month with the lowest average high temperature is February (2.7°C).
- Average low temperature in September: 13.2°C
The month with the highest average low temperature is August (15.8°C).
The coldest month (with the lowest average low temperature) is February (0.1°C).
Average pressure in September
Herstedøster, Denmark
- Average pressure in September: 1015.2mbar
The month with the highest atmospheric pressure is April (1015.6mbar).
The month with the lowest atmospheric pressure is December (1011.1mbar).
Average wind speed in September
Herstedøster, Denmark
- Average wind speed in September: 18.6km/h
The windiest month (with the highest average wind speed) is December (22.1km/h).
The calmest month (with the lowest average wind speed) is July (15.4km/h).
Average humidity in September
Herstedøster, Denmark
- Average humidity in September: 78%
The months with the highest relative humidity are January and December (86%).
The months with the lowest relative humidity are April, May and June (75%).
Average rainfall in September
Herstedøster, Denmark
- Average rainfall in September: 29mm
The wettest month (with the highest rainfall) is August (50mm).
The driest month (with the least rainfall) is April (13mm).
Average rainfall days in September
Herstedøster, Denmark
- Average rainfall days in September: 14.9 days
The month with the highest number of rainy days is August (17.3 days).
The month with the least rainy days is February (9.2 days).
Average snowfall in September
Herstedøster, Denmark
- Average snowfall in September: 0mm
The month with the highest snowfall is February (34mm).
The months with the least snowfall are May, June, July, August, September and October (0mm).
Average snowfall days in September
Herstedøster, Denmark
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is February (8.1 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
Herstedøster, Denmark
- Average daylight in September: 12h and 42min
The month with the longest days is June (Average daylight: 17h and 24min).
The month with the shortest days is December (Average daylight: 7h and 6min).
- Average sunshine in September: 7h and 54min
The month with the most sunshine is August (Average sunshine: 9h and 36min).
The month with the least sunshine is December (Average sunshine: 3h and 6min).
Average sunshine days in September
Herstedøster, Denmark
- Average sunshine days in September: 10.8 days
The month with the most sunshine days is April (16.5 days).
The month with the least sunshine days is December (9.1 days).
Average UV index in September
Herstedøster, 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
Herstedøster, Denmark
- Average cloud cover in September: 45
The month with the most cloud cover is December (Cloud cover 70).
The months with the least cloud cover are June and August (Cloud cover 38).
Average visibility in September
Herstedøster, Denmark
- Average visibility in September: 10km
The months with the highest visibility are April, May, June, July, August, September and October (10km).
The months with the lowest visibility are January, February, March, November and December (9km).
