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Contents
- The climate of Slagelse
- The best time to visit Slagelse
- The worst time to visit Slagelse
- Spring weather in Slagelse
- Summer weather in Slagelse
- Autumn weather in Slagelse
- Winter weather in Slagelse
- Weather in January
- Weather in February
- Weather in March
- Weather in April
- Weather in May
- Weather in June
- Weather in July
- Weather in August
- Weather in September
- Weather in October
- Weather in November
- Weather in December
- Frequently asked questions
- Average temperature
- Average pressure
- Average wind speed
- Average humidity
- Average rainfall
- Average rainfall days
- Average snowfall
- Average snowfall days
- Average daylight
- Average sunshine
- Average sunshine days
- Average UV index
- Average cloud cover
- Average visibility
The climate of Slagelse
Located in Denmark, the climate in Slagelse adheres to the Köppen climate classification of Cfb, indicating a marine west coast climate with warm summers. This classification often results in moderate weather with no extreme temperatures. Over the course of the year, temperatures generally range from -0.3°C (31.5°F) to 20.9°C (69.6°F). Viewers can anticipate a relatively uniform distribution of rainfall throughout the year. Weather variables such as visibility range from 8km (5mi) to 9km (5.6mi), maintaining a similar pattern throughout the year.
In terms of weather parameters, Slagelse experiences mild variations. The highest average daily temperatures are typically around 20.9°C (69.6°F) in July. Contrastingly, January brings the lowest averages, with temperatures just below freezing. Rainfall, averaging between 10mm (0.39") and 37mm (1.46") a month, peaks during the month of August. In terms of humidity, percentages fluctuate from 77% to 89% with slightly lower levels in the summer and autumn, and higher percentages during the winter.
Unique weather patterns in Slagelse include significant snowfall during winter months and substantial daylight hours during the summer months. The snowiest month is December with 40mm (1.57") of snow, while maximum daylight hours reach up to 17.4 hours during June.
In terms of weather parameters, Slagelse experiences mild variations. The highest average daily temperatures are typically around 20.9°C (69.6°F) in July. Contrastingly, January brings the lowest averages, with temperatures just below freezing. Rainfall, averaging between 10mm (0.39") and 37mm (1.46") a month, peaks during the month of August. In terms of humidity, percentages fluctuate from 77% to 89% with slightly lower levels in the summer and autumn, and higher percentages during the winter.
Unique weather patterns in Slagelse include significant snowfall during winter months and substantial daylight hours during the summer months. The snowiest month is December with 40mm (1.57") of snow, while maximum daylight hours reach up to 17.4 hours during June.
The best time to visit Slagelse
Considering the weather factors such as temperature, humidity, rainfall, and daylight, the optimal time to visit Slagelse is between June and August. During this period, weather conditions are generally favourable; temperatures average between 15.6°C (60.1°F) to 20.9°C (69.6°F), while rainfall is moderate. These months also offer the most sunshine, with daily averages of 9 hours to 9.2 hours. With an average UV index of 5, precautions against sunburn are advisable.
The worst time to visit Slagelse
As the temperature drops and snowfall increases, Slagelse's weather conditions take a turn for the worse from November to March. The colder months experience temperatures nearing freezing, from -0.3°C (31.5°F) to 1.5°C (34.7°F). In addition, snowfall in December averages 40mm (1.57"). Furthermore, daylight hours decrease drastically during this period, averaging between 7.2 in December and 9.7 hours in February, reducing potential sightseeing time.
Spring weather in Slagelse
Spring brings a shift in the weather in Slagelse. The months from March to May experience temperature from 1.2°C (34.2°F) to 15.6°C (60.1°F), with notable changes month to month. Rainfall during this season ranges from 10mm (0.39") in April to 26mm (1.02") in May. Additionally, daylight hours increase noticeably, reaching up to 16.2 hours by the end of spring.
Summer weather in Slagelse
Summer in Slagelse is characterised by warm, pleasant days and extended daylight hours. The months of June, July, and August witness temperatures ranging from 15.6°C (60.1°F) to 20.9°C (69.6°F). Rainfall is a bit high during summer, particularly in the month of August with a high of 37mm (1.46"). Still, summer does provide the opportunity to bask under extended daylight hours of up to 17.4 hours.
Autumn weather in Slagelse
The months of September, October, and November constitute the autumn season in Slagelse. Temperatures during this period range from 4.6°C (40.3°F) in November to 16.9°C (62.4°F) in September. These cooler temperatures are coupled with a gradual increase in rainfall, peaking at 25mm (0.98") in October. Daylight hours begin to decline as well, dwindling to 8.4 hours by November.
Winter weather in Slagelse
During the winter months from December to February, Slagelse experiences a significant drop in temperature, with averages from -0.3°C (31.5°F) to 3.1°C (37.6°F). Snowfall accompanies these cooler temperatures, with December being the snowiest month at 40mm (1.57"). The daylight hours decrease as well, falling to a low of 7.2 hours in December. Winter also sees an increase in relative humidity, averaging 89%, making this period the coldest and most humid of the year.
Weather in January
January in Slagelse appears to be a chilly period, highlighting the start of a new year with a noticeable cold. The high humidity of 89% hangs heavy in the winter air. When the city experiences 32mm (1.26") of snow spread out on 8.5 days, it provides an idyllic winter scene. Weather in January »
Weather in February
February continues in the chilly vein of January, with its core characteristic being the distinctive low temperatures but with a slight increase as compared to January's readings. While there is a small dip in the recorded rainfall, winter persists in full swing with 33mm (1.3") of snowfall spread across 8.6 days. Weather in February »
Weather in March
March has Slagelse ready to welcome the spring blooming season. The highest temperature patterns rise slightly, while the lowest temperature readings also show an uptick. The dramatic drop in snowfall to 16mm (0.63") across 4.2 days clearly marks the transition from the cold winter months to the more temperate March weather. Weather in March »
Weather in April
April in Slagelse is characterized by impressive daylight hours. There predictably presents a further upswing in temperature readings, reflecting warmer days. Snowfall becomes virtually non-existent in this period, affirming a complete transition into spring. Weather in April »
Weather in May
May's arrival in Slagelse signals the blooming flowers and increasing temperatures typical of late spring. A notable increase in rainfall to 26mm (1.02") over 14.8 days attests to the popular saying of 'April showers bring May flowers'. Weather in May »
Weather in June
June in Slagelse brings some of the longest daylight hours and some of the highest UV index readings observed throughout the year. Summer temperatures are beginning to take hold, promising more warmth to come. This period continues with the same 26mm (1.02") of rainfall from May, offering a consistent watering cycle for plants. Weather in June »
Weather in July
July often presents the warmest weather of the year in Slagelse, embracing the heart of summer. The highest temperatures of 20.9°C (69.6°F) blend with the highest UV index of 5, fostering a typical European summer. Given the increase of rainy days to 15.5 in July, August counters this trend by experiencing fewer rainy days, while the humidity ratio remains consistent. Weather in July »
Weather in August
August weather in Slagelse sustains a consistent summer climate. The city reaches the pinnacle of precipitation, with 37mm (1.46") of rainfall that meets the earth across 15.3 days. In contrast, following month September brings fewer rainy days but showcases a consistent temperature decrease. Weather in August »
Weather in September
The transition between summer and autumn introduces September in Slagelse. Daylight hours begin to decrease, culminating in a softer light and shorter days. The decline in temperature from August's high of 20.8°C (69.4°F) to a September high of 16.9°C (62.4°F) clearly outlines the transition. Weather in September »
Weather in October
October represents the heart of autumn in Slagelse with cooler weather and picturesque fall colors dominating the landscape. There is a persistent fall in temperature readings, with some of the coldest nights since May. In comparison, November brings more rainfall but consistent temperatures. Weather in October »
Weather in November
November’s weather in Slagelse sees an escalation in the amount of rainfall, increasing from 25mm (0.98") in October to 22mm (0.87"), spreading over about 13.8 days. Markedly, days are becoming shorter and chilly nights start creeping in. Weather in November »
Weather in December
December is the capstone month in Slagelse, ending the calendar year with the beginning of winter. The city is blanketed with the highest recorded snowfall of 40mm (1.57") spread across 6.6 days, bringing a snow-laden holiday season. Weather in December »
[Resources]Frequently asked questions
What time of the year is the coldest in Slagelse?
Temperature readings in Slagelse, Denmark, reach their annual highs in January, averaging 2.8°C (37°F) and a minimum average of -0.3°C (31.5°F).
What is the most humid month in Slagelse?
The months with the highest humidity in Slagelse are January, November and December, with an average relative humidity of 89%.
How much does it rain in Slagelse?
In Slagelse, Denmark, during the entire year, the rain falls for 153.4 days and collects up to 293mm (11.54") of precipitation.
When does it snow in Slagelse?
Months with snowfall in Slagelse are January through April, November and December.
How much does it snow in Slagelse?
Throughout the year, in Slagelse, Denmark, there are 30.5 snowfall days, and 137mm (5.39") of snow is accumulated.
What is the month with the least sunshine in Slagelse?
January, February and December, with an average of 3h of sunshine, are months with the least sunshine in Slagelse.
What is the month with the lowest UV index in Slagelse?
With an average maximum UV index of 1, January is the month with the lowest UV index.
What is the driest month in Slagelse?
The month with the least rainfall in Slagelse is April, when the rain falls for 10 days and typically collects 10mm (0.39") of precipitation.
What is the least humid month in Slagelse?
The months with the lowest humidity in Slagelse are May and June, with an average relative humidity of 77%.
When it does not snow in Slagelse?
In Slagelse, Denmark, snow does not fall in May through October.
When are the longest days in Slagelse?
With an average of 17h and 24min of daylight, June has the longest days of the year in Slagelse, Denmark.
What are the months with the highest UV index in Slagelse?
June through August, with an average maximum UV index of 5, are months with the highest UV index in Slagelse.
What part of the year is the hottest in Slagelse?
July, noted for its average high-temperature of 20.9°C (69.6°F) and an average low-temperature of 13.2°C (55.8°F), is considered the warmest month in Slagelse, Denmark.
What is the rainiest month in Slagelse?
The month with the most rainfall is August, when the rain falls for 15.3 days and typically aggregates up to 37mm (1.46") of precipitation.
What month has the most sunshine in Slagelse?
The month with the most sunshine in Slagelse, Denmark, is August, with an average of 9.2h of sunshine.
When is Daylight Saving Time (DST) in Slagelse?
On Sunday, 27. October 2024, at 03:00, Daylight Saving Time ends in Slagelse, and the time zone changes from CEST to CET. The next Daylight Saving Time starts on Sunday, 30. March 2025, at 02:00, and the time zone reverts from CET to CEST.
When does it snow the most in Slagelse?
December is the month with the most snowfall. Snow falls for 6.6 days and accumulates 40mm (1.57") of snow.
What is the month with the shortest days in Slagelse?
With an average of 7h and 12min of daylight, December has the shortest days of the year in Slagelse.
Average temperature
Slagelse, Denmark
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).
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
Slagelse, Denmark
- Average pressure in January:
1012.8mbar - Average pressure in February:
1013mbar - Average pressure in March:
1014.1mbar - Average pressure in April:
1015.6mbar - Average pressure in May:
1015.5mbar - Average pressure in June:
1014.2mbar
- Average pressure in July:
1013.1mbar - Average pressure in August:
1014mbar - Average pressure in September:
1015.3mbar - Average pressure in October:
1015mbar - Average pressure in November:
1011.2mbar - Average pressure in December:
1011.3mbar
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
Slagelse, Denmark
- Average wind speed in January:
16.6km/h - Average wind speed in February:
16.5km/h - Average wind speed in March:
15.3km/h - Average wind speed in April:
13.5km/h - Average wind speed in May:
13.3km/h - Average wind speed in June:
13.1km/h
- Average wind speed in July:
13km/h - Average wind speed in August:
13.1km/h - Average wind speed in September:
14.2km/h - Average wind speed in October:
15km/h - Average wind speed in November:
14.9km/h - Average wind speed in December:
17.3km/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
Slagelse, Denmark
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
Slagelse, Denmark
The wettest month (with the highest rainfall) is August (37mm).
The driest month (with the least rainfall) is April (10mm).
Average rainfall days
Slagelse, Denmark
- Average rainfall days in January:
10.3 days - Average rainfall days in February:
8.7 days - Average rainfall days in March:
10.1 days - Average rainfall days in April:
10 days - Average rainfall days in May:
14.8 days - Average rainfall days in June:
12.4 days
- Average rainfall days in July:
15.5 days - Average rainfall days in August:
15.3 days - Average rainfall days in September:
14.4 days - Average rainfall days in October:
14.6 days - Average rainfall days in November:
13.8 days - Average rainfall days in December:
13.5 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
Slagelse, Denmark
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
Slagelse, Denmark
- Average snowfall days in January:
8.5 days - Average snowfall days in February:
8.6 days - Average snowfall days in March:
4.2 days - Average snowfall days in April:
0.8 days - Average snowfall days in May:
0 days - Average snowfall days in June:
0 days
- Average snowfall days in July:
0 days - Average snowfall days in August:
0 days - Average snowfall days in September:
0 days - Average snowfall days in October:
0.1 days - Average snowfall days in November:
1.7 days - Average snowfall days in December:
6.6 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 / Average sunshine
Slagelse, Denmark
- Average daylight in January:
7h and 5min - Average daylight in February:
9h and 4min - Average daylight in March:
11h and 5min - Average daylight in April:
14h and 1min - Average daylight in May:
16h and 1min - Average daylight in June:
17h and 2min
- Average daylight in July:
16h and 5min - Average daylight in August:
15h and 0min - Average daylight in September:
12h and 4min - Average daylight in October:
10h and 2min - Average daylight in November:
8h and 2min - Average daylight in December:
7h and 1min
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 January:
3h and 0min - Average sunshine in February:
3h and 0min - Average sunshine in March:
5h and 1min - Average sunshine in April:
8h and 1min - Average sunshine in May:
8h and 2min - Average sunshine in June:
9h and 0min
- Average sunshine in July:
9h and 0min - Average sunshine in August:
9h and 1min - Average sunshine in September:
7h and 2min - Average sunshine in October:
4h and 1min - Average sunshine in November:
3h and 2min - Average sunshine in December:
3h and 0min
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
Slagelse, Denmark
- Average sunshine days in January:
13.2 days - Average sunshine days in February:
11.5 days - Average sunshine days in March:
15 days - Average sunshine days in April:
17.1 days - Average sunshine days in May:
13.3 days - Average sunshine days in June:
14.8 days
- Average sunshine days in July:
12.4 days - Average sunshine days in August:
11.2 days - Average sunshine days in September:
11.4 days - Average sunshine days in October:
12.1 days - Average sunshine days in November:
11.8 days - Average sunshine days in December:
9.5 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
Slagelse, Denmark
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
Slagelse, Denmark
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
Slagelse, Denmark
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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