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
September
Weather in September
Temperature
The shift from August to September coincides with a small decrease in the average high-temperature, down to a comfortable 16.6°C (61.9°F) from an agreeable 20.3°C (68.5°F). Ølstykke sustains a near constant temperature throughout September, with nighttime averages of 13°C (55.4°F).Humidity
In September, the average relative humidity in Ølstykke is 79%.Rainfall
In Ølstykke, Denmark, during September, the rain falls for 16 days and regularly aggregates up to 44mm (1.73") of precipitation. Throughout the year, in Ølstykke, 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 the month, sunrise is at 06:17 and sunset at 20:05. On the last day of September, in Ølstykke, sunrise is at 07:13 and sunset at 18:49 CEST.
Sunshine
The average sunshine in September in Ølstykke, Denmark, is 7.8h.UV index
The average daily maximum UV index in September is 4. A UV Index value of 3 to 5 symbolizes a medium health hazard from unprotected exposure to Sun's UV rays for the average person.Note: In September, the maximum UV index of 4 suggests these recommendations:
Take necessary precautions - Protection from skin and eye injury is mandatory. The best time to avoid the Sun's harmful UV radiation is during midday when it's most potent. A hat with a broad brim is indispensable, filtering out up to half of UV rays.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the average September temperature in Ølstykke?
What is the average humidity in September in Ølstykke?
How much does it rain in Ølstykke in September?
When it does not snow in Ølstykke?
What is the average length of the day in September in Ølstykke?
When are sunrise and sunset in September in Ølstykke?
How long on average sun shines in September in Ølstykke?
How high is the UV index in September in Ølstykke?
Average temperature in September
Ølstykke, 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
Ølstykke, 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
Ølstykke, 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
Ølstykke, 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
Ølstykke, 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
Ølstykke, 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
Ølstykke, 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
Ølstykke, 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
Ølstykke, Denmark
- Average daylight in September: 12h and 4min
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 5min
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
Ølstykke, 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
Ølstykke, 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
Ølstykke, 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
Ølstykke, 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).
