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
September in Slagelse signals a slight drop in average high-temperature, sliding from August's pleasant 20.8°C (69.4°F) to an enjoyable 16.9°C (62.4°F). Slagelse throughout September, experiences an average nighttime temperature of 11.7°C (53.1°F).Humidity
In September, the average relative humidity is 82%.Rainfall
In Slagelse, during September, the rain falls for 14.4 days and regularly aggregates up to 30mm (1.18") of precipitation. Throughout the year, in Slagelse, there are 153.4 rainfall days, and 293mm (11.54") of precipitation is accumulated.Snowfall
May through October are months without snowfall in Slagelse.Daylight
The average length of the day in September is 12h and 44min.On the first day of the month, sunrise is at 06:21 and sunset at 20:07. On the last day of September, in Slagelse, sunrise is at 07:16 and sunset at 18:52 CEST.
Sunshine
In Slagelse, the average sunshine in September is 7.4h.UV index
The average daily maximum UV index in September is 4. A UV Index estimate of 3 to 5 represents a moderate health risk from unsafe exposure to UV radiation for the average person.Note: In September, a regular UV index of 4 translates into these guidelines:
Undertake precautions - It is suggested to shield oneself from sunburn. The intensity of the Sun's UV radiation during midday suggests reducing time spent outdoors. Shield yourself from the harmful effects of UV radiation with sun-protective attire, a hat, and quality sunglasses.
Frequently asked questions
What are September temperatures in Slagelse?
What is the average humidity in September in Slagelse?
How many days does it rain in September in Slagelse?
When it does not snow in Slagelse?
What is the average length of the day in September in Slagelse?
When are sunrise and sunset in September in Slagelse?
How long on average sun shines in September in Slagelse?
What is the UV index intensity in September in Slagelse?
Average temperature in September
Slagelse, Denmark
- Average high temperature in September: 16.9°C
The warmest month (with the highest average high temperature) is July (20.9°C).
The month with the lowest average high temperature is January (2.8°C).
- Average low temperature in September: 11.7°C
The month with the highest average low temperature is August (14°C).
The coldest month (with the lowest average low temperature) is February (-0.7°C).
Average pressure in September
Slagelse, Denmark
- Average pressure in September: 1015.3mbar
The month with the highest atmospheric pressure is April (1015.6mbar).
The month with the lowest atmospheric pressure is November (1011.2mbar).
Average wind speed in September
Slagelse, Denmark
- Average wind speed in September: 14.2km/h
The windiest month (with the highest average wind speed) is December (17.3km/h).
The calmest month (with the lowest average wind speed) is July (13km/h).
Average humidity in September
Slagelse, Denmark
- Average humidity in September: 82%
The months with the highest relative humidity are January, November and December (89%).
The months with the lowest relative humidity are May and June (77%).
Average rainfall in September
Slagelse, Denmark
- Average rainfall in September: 30mm
The wettest month (with the highest rainfall) is August (37mm).
The driest month (with the least rainfall) is April (10mm).
Average rainfall days in September
Slagelse, Denmark
- Average rainfall days in September: 14.4 days
The month with the highest number of rainy days is July (15.5 days).
The month with the least rainy days is February (8.7 days).
Average snowfall in September
Slagelse, Denmark
- Average snowfall in September: 0mm
The month with the highest snowfall is December (40mm).
The months with the least snowfall are May, June, July, August, September and October (0mm).
Average snowfall days in September
Slagelse, Denmark
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is February (8.6 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
Slagelse, Denmark
- Average daylight in September: 12h and 4min
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 12min).
- Average sunshine in September: 7h and 2min
The month with the most sunshine is August (Average sunshine: 9h and 12min).
The months with the least sunshine are January, February and December (Average sunshine: 3h and 0min).
Average sunshine days in September
Slagelse, Denmark
- Average sunshine days in September: 11.4 days
The month with the most sunshine days is April (17.1 days).
The month with the least sunshine days is December (9.5 days).
Average UV index in September
Slagelse, 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
Slagelse, Denmark
- Average cloud cover in September: 49
The month with the most cloud cover is December (Cloud cover 72).
The month with the least cloud cover is August (Cloud cover 41).
Average visibility in September
Slagelse, Denmark
- Average visibility in September: 9km
The months with the highest visibility are March, April, May, June, July, August, September and October (9km).
The months with the lowest visibility are January, February, November and December (8km).
Slagelse, Denmark
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