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Contents
- The climate of Leuven
- The best time to visit Leuven
- The worst time to visit Leuven
- Spring weather in Leuven
- Summer weather in Leuven
- Autumn weather in Leuven
- Winter weather in Leuven
- 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
Climate and monthly weather forecast
The climate of Leuven
Leuven, Belgium, finds its climate categorised as Cfb, according to the Köppen Climate Classification. This nomenclature translates to a marine west coast climate, characterised by a warm summer. The city's geographical position, located not far from the North Sea, contributes to this specific classification where Atlantic influences bring moderate temperatures and adequate rainfall, distributed across the year.
Overall, Leuven experiences relatively mild weather. Daylight hours range from 8 hours in the shortest days of December to 16.4 hours in the height of June. Similarly, sunshine hours vary across months, peaking in July with an average of 9.2 hours per day, while diminishing to a lower of 3.8 hours per day in December. Daily UV index shows fluctuations, indicating a moderate level in summer months, falling to the low-end scale in winter with readings between 2 in the cooler months and scaling up to 5 in the warmer ones.
In terms of precipitation, Leuven has a fairly even distribution, with rainfall amounts varying from 42mm (1.65") in January to a slight peak of 57mm (2.24") in December. Correspondingly, the city has its fair share of rainy days, spanning from 8.5 days in September to a high of 18.5 days in December. Across the winter months, snowfall can also occur, peaking in February with an average depth of 41mm (1.61") and number of snowfall days reaching up to 5.
On the temperature spectrum in Leuven, months see variations in the range marking lowest average daily minimums at 1°C (33.8°F) in January to highest average daily maximums at 23.2°C (73.8°F) in July. Humidity values sit rather high, with lowest relative humidity recorded in April and July at 75%, whereas the level elevates up to 86% to 88% in the winter period.
Overall, Leuven experiences relatively mild weather. Daylight hours range from 8 hours in the shortest days of December to 16.4 hours in the height of June. Similarly, sunshine hours vary across months, peaking in July with an average of 9.2 hours per day, while diminishing to a lower of 3.8 hours per day in December. Daily UV index shows fluctuations, indicating a moderate level in summer months, falling to the low-end scale in winter with readings between 2 in the cooler months and scaling up to 5 in the warmer ones.
In terms of precipitation, Leuven has a fairly even distribution, with rainfall amounts varying from 42mm (1.65") in January to a slight peak of 57mm (2.24") in December. Correspondingly, the city has its fair share of rainy days, spanning from 8.5 days in September to a high of 18.5 days in December. Across the winter months, snowfall can also occur, peaking in February with an average depth of 41mm (1.61") and number of snowfall days reaching up to 5.
On the temperature spectrum in Leuven, months see variations in the range marking lowest average daily minimums at 1°C (33.8°F) in January to highest average daily maximums at 23.2°C (73.8°F) in July. Humidity values sit rather high, with lowest relative humidity recorded in April and July at 75%, whereas the level elevates up to 86% to 88% in the winter period.
The best time to visit Leuven
For those who prefer to enjoy pleasant, warm weather along with ample sunshine, the summer months in Leuven, particularly from June to August, serve as the ideal time to visit. Average daily maximum temperature can reach up to 23.2°C (73.8°F) in July. These months also present longer daylight duration, peaking at 16.4 hours in June. The number of sunshine days reach up to 17.4 on average during July, accompanied with a moderate UV index of 5.
The worst time to visit Leuven
Considering the weather conditions, the least inviting time for visitors would presumably be December with its marked intensity of both temperature variance to 6.3°C (43.3°F) and rainfall. December sees the highest rainfall amounts averaging 57mm (2.24"), along with the greatest amount of rainy days estimated at 18.5 per month. The daylight hours are also shortest during December at roughly 8 hours.
Spring weather in Leuven
Springtime in Leuven, extending from March to May, is characterised by relatively moderate conditions in terms of temperature, rainfall, and sunlight. The average daily temperature increases gradually during these months, from 10.7°C (51.3°F) in March to 17.5°C (63.5°F) in May. Consistently, rainfall quantity varies slightly, ranging from 43mm (1.69") in March to 27mm (1.06") in May. The period also witnesses a gradual increase in daylight hours from 11.9 hours in March to 15.5 hours in May.
Summer weather in Leuven
Summers in Leuven, extending from June to August, present the warmest period of the year. The temperatures in this quarter rise well above 20°C (68°F), with July observing the hottest month of the year with the highest average daily high temperature of 23.2°C (73.8°F). Rainfall amounts steadily decrease over the summer, falling from 27mm (1.06") in June to 20mm (0.79") in August. Comparatively, daylight durations are longer, up to 16.4 hours long in June, reducing to 14.5 hours in August.
Autumn weather in Leuven
Autumn, from September to November, in Leuven observes a general downturn in temperature. Starting with a high of 19.4°C (66.9°F) in September, the temperature incrementally decreases to a lower of 9.6°C (49.3°F) by November. Correspondingly, rainfall during autumn varies between 16mm (0.63") in September to 45mm (1.77") by November, while the daylight hours gradually descend from 12.6 hours in September to 9 hours by November.
Winter weather in Leuven
Winters in Leuven, spanning December to February, are marked by chilling temperatures with highs averaging from 6.3°C (43.3°F) in December and February to 4.9°C (40.8°F) in January. Snowfall is also observed during winter, especially in February, with an average depth of 41mm (1.61"). Correspondingly, the day length decreases to 8 hours in December, gradually increasing to 10.1 hours by February.
Weather in January
The first month of the year in Leuven, Belgium, typically sees the mercury dipping, with temperatures fluctuating between 1°C (33.8°F) at night and 4.9°C (40.8°F) in daytime. Compared to December, the air cools off slightly. Weather in January »
Weather in February
As the calendar turns to February, the Belgian city of Leuven sees a subtle rise in temperatures. With highs of 6.3°C (43.3°F), temperatures begin to move away from the chilliness of January, although the nights still hover around the freezing point. Weather in February »
Weather in March
March in Leuven denotes the dawn of spring, where the weather gradually begins to warm up. The most significant warmth is felt in the daytime, as temperatures reach up to 10.7°C (51.3°F) - a noticeable shift from February's highs. Weather in March »
Weather in April
April marks a full-fledged spring in Leuven, as temperatures climb progressively from March, stylestic heat dynamics oscillate between 5.8°C (42.4°F) at dusk and 15.3°C (59.5°F) at zenith. Rainfall decreases considerably, making way for the dry season. Weather in April »
Weather in May
The month of May ushers in the warmth in Leuven city, with average temperatures scaling from 8.3°C (46.9°F) to 17.5°C (63.5°F). It's a significant leap from April's weather, making it noticeably warmer. Precipitation remains around the same level as April. Weather in May »
Weather in June
June heralds the beginning of summer in Leuven, and temperatures rise still higher, with daytime temperatures typically hitting a maximum of 20.8°C (69.4°F). Compared to May, June offers slightly more consistent warm weather. Also, daylight hours reach their utmost extent during the year. Weather in June »
Weather in July
The peak of summer arrives with July in Leuven, where the temperature escalates further and tops out at 23.2°C (73.8°F). This month stands out as the warmest month of the year. Despite the soaring temperatures, rainy days are few and far between, resulting in a notably droughty period. Weather in July »
Weather in August
August presents nearly equivalent weather to July in Leuven. With the temperature band lying between 14°C (57.2°F) to 23.1°C (73.6°F), the heat stays steady. This month also carries the longest sunshine durations, matching those of July. Weather in August »
Weather in September
Moving into September, Leuven starts to experience a gradual cooldown from the height of summer. With daytime highs no more than 19.4°C (66.9°F), it marks a distinct transition from August. Cloud cover continues to increase, hinting at the upcoming autumn season. Weather in September »
Weather in October
October witnesses a remarkable downshift in temperatures in Leuven. Temperatures prevail from 8.1°C (46.6°F) to 15.1°C (59.2°F), indicating a sharp departure from September's trend. Additionally, the frequency of rainy days sees quite a significant jump. Weather in October »
Weather in November
In November, Leuven’s weather continues to moderate, gradually sliding into the cold winter months. With temperatures ranging between 5°C (41°F) and 9.6°C (49.3°F), the air carries a persistent chill. Rainfall emerges as a key feature, reaching 45mm (1.77") spread over 16.5 days. Weather in November »
Weather in December
December ushers in the full vigor of winter in Leuven. Being the coldest month, the temperature variation begins from a chilly 2.4°C (36.3°F) rising to only 6.3°C (43.3°F). Conferring the most rain, December records rainfall of 57mm (2.24") over approximately 18.5 days. Weather in December »
Updated: Jun 5, 2024
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What part of the year is the coldest?
January is the month that records the lowest temperatures, with averages ranging from a high of 4.9°C (40.8°F) to a low of 1°C (33.8°F).
How much does it rain?
Throughout the year, there are 162 rainfall days, and 393mm (15.47") of precipitation is accumulated.
When does it snow?
Months with snowfall are January through March, November and December.
How many days does it snow?
In Leuven, during the entire year, snow falls for 14.4 days and aggregates up to 108mm (4.25") of snow.
What is the month with the lowest UV index?
January, February, November and December, with an average maximum UV index of 2, are months with the lowest UV index.
What is the snowiest month?
The month with the most snowfall is February, when snow falls for 5 days and typically aggregates up to 41mm (1.61") of snow.
When it does not snow?
April through October are months without snowfall in Leuven.
When are the longest days?
With an average of 16h and 24min of daylight, June has the longest days of the year.
What are the months with the highest UV index?
The months with the highest UV index are June through August, with an average maximum UV index of 5.
What are the warmest months?
Leuven's temperatures tend to reach their peak averages in July, with a high of 23.2°C (73.8°F) and a low of 13.7°C (56.7°F).
What month has the most sunshine?
With an average of 9.2h of sunshine, July has the most sunshine of the year.
What is the least humid month?
The least humid month is August, with an average relative humidity of 74%.
What is the driest month?
The month with the least rainfall is September, when the rain falls for 8.5 days and typically collects 16mm (0.63") of precipitation.
When is Daylight Saving Time (DST)?
On Sunday, 27. October 2024, at 03:00, Daylight Saving Time ends, 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.
What is the most humid month?
December is the most humid month, with an average relative humidity of 88%.
What is the rainiest month?
December is the month with the most rainfall. Rain falls for 18.5 days and accumulates 57mm (2.24") of precipitation.
What is the month with the shortest days?
With an average of 8h and 0min of daylight, December has the shortest days of the year.
What is the month with the least sunshine?
December has the least sunshine of the year, with an average of 3.8h of sunshine.
Average temperature
Leuven, Belgium
The warmest month (with the highest average high temperature) is July (23.2°C).
The month with the lowest average high temperature is January (4.9°C).
The month with the highest average low temperature is August (14°C).
The coldest month (with the lowest average low temperature) is January (1°C).
Average pressure
Leuven, Belgium
- Average pressure in January:
1016.2mbar - Average pressure in February:
1015.2mbar - Average pressure in March:
1016mbar - Average pressure in April:
1015.8mbar - Average pressure in May:
1016.4mbar - Average pressure in June:
1016.2mbar
- Average pressure in July:
1015.7mbar - Average pressure in August:
1015.6mbar - Average pressure in September:
1017.5mbar - Average pressure in October:
1016.5mbar - Average pressure in November:
1012.5mbar - Average pressure in December:
1016.3mbar
The month with the highest atmospheric pressure is September (1017.5mbar).
The month with the lowest atmospheric pressure is November (1012.5mbar).
Average wind speed
Leuven, Belgium
- Average wind speed in January:
17.2km/h - Average wind speed in February:
17.7km/h - Average wind speed in March:
15.7km/h - Average wind speed in April:
12.6km/h - Average wind speed in May:
12.4km/h - Average wind speed in June:
12.2km/h
- Average wind speed in July:
11.9km/h - Average wind speed in August:
11.7km/h - Average wind speed in September:
11.9km/h - Average wind speed in October:
13.9km/h - Average wind speed in November:
15.7km/h - Average wind speed in December:
18.1km/h
The windiest month (with the highest average wind speed) is December (18.1km/h).
The calmest month (with the lowest average wind speed) is August (11.7km/h).
Average humidity
Leuven, Belgium
The month with the highest relative humidity is December (88%).
The month with the lowest relative humidity is August (74%).
Average rainfall
Leuven, Belgium
The wettest month (with the highest rainfall) is December (57mm).
The driest month (with the least rainfall) is September (16mm).
Average rainfall days
Leuven, Belgium
- Average rainfall days in January:
17 days - Average rainfall days in February:
14.7 days - Average rainfall days in March:
14.8 days - Average rainfall days in April:
11.3 days - Average rainfall days in May:
13.8 days - Average rainfall days in June:
11.8 days
- Average rainfall days in July:
11.7 days - Average rainfall days in August:
10.5 days - Average rainfall days in September:
8.5 days - Average rainfall days in October:
12.9 days - Average rainfall days in November:
16.5 days - Average rainfall days in December:
18.5 days
The month with the highest number of rainy days is December (18.5 days).
The month with the least rainy days is September (8.5 days).
Average snowfall
Leuven, Belgium
The month with the highest snowfall is February (41mm).
The months with the least snowfall are April, May, June, July, August, September and October (0mm).
Average snowfall days
Leuven, Belgium
- Average snowfall days in January:
4.4 days - Average snowfall days in February:
5 days - Average snowfall days in March:
1.4 days - Average snowfall days in April:
0.2 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 days - Average snowfall days in November:
0.8 days - Average snowfall days in December:
2.6 days
The month with the highest number of snowfall days is February (5 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).
Average daylight / Average sunshine
Leuven, Belgium
- Average daylight in January:
8h and 3min - Average daylight in February:
10h and 0min - Average daylight in March:
11h and 5min - Average daylight in April:
13h and 5min - Average daylight in May:
15h and 3min - Average daylight in June:
16h and 2min
- Average daylight in July:
16h and 0min - Average daylight in August:
14h and 3min - Average daylight in September:
12h and 4min - Average daylight in October:
10h and 4min - Average daylight in November:
9h and 0min - Average daylight in December:
8h and 0min
The month with the longest days is June (Average daylight: 16h and 24min).
The month with the shortest days is December (Average daylight: 8h and 0min).
- Average sunshine in January:
3h and 5min - Average sunshine in February:
4h and 2min - Average sunshine in March:
5h and 5min - Average sunshine in April:
8h and 1min - Average sunshine in May:
8h and 2min - Average sunshine in June:
8h and 4min
- Average sunshine in July:
9h and 1min - Average sunshine in August:
9h and 0min - Average sunshine in September:
7h and 4min - Average sunshine in October:
5h and 3min - Average sunshine in November:
4h and 1min - Average sunshine in December:
3h and 5min
The month with the most sunshine is July (Average sunshine: 9h and 12min).
The month with the least sunshine is December (Average sunshine: 3h and 48min).
Average sunshine days
Leuven, Belgium
- Average sunshine days in January:
8.8 days - Average sunshine days in February:
8.7 days - Average sunshine days in March:
13.2 days - Average sunshine days in April:
16 days - Average sunshine days in May:
15.5 days - Average sunshine days in June:
16.4 days
- Average sunshine days in July:
17.4 days - Average sunshine days in August:
18.6 days - Average sunshine days in September:
20.1 days - Average sunshine days in October:
15.6 days - Average sunshine days in November:
10.1 days - Average sunshine days in December:
9 days
The month with the most sunshine days is September (20.1 days).
The month with the least sunshine days is February (8.7 days).
Average UV index
Leuven, Belgium
The months with the highest UV index are June, July and August (UV index 5).
The months with the lowest UV index are January, February, November and December (UV index 2).
Average cloud cover
Leuven, Belgium
The month with the most cloud cover is December (Cloud cover 62).
The months with the least cloud cover are April and August (Cloud cover 41).
Average visibility
Leuven, Belgium
The months with the highest visibility are February, March, April, May, June, July, August, September, October, November and December (9km).
The month with the lowest visibility is January (8km).
