Leuven experiences a temperate maritime climate with mild summers and cool, damp winters. Summer highs reach 23–24°C, while winter lows can dip to 1–3°C. Rain falls year-round, peaking in late summer and winter, and sunshine is most abundant from May to August. The city’s climate offers distinct, pleasant seasons for travellers.
The best times to travel section shows how the months compare for a visit, so you can find the time of year that fits what you want to do.
Background colours of the months:
The colour shows the typical temperature: yellow (hot), green (mild) and blue (cold). How strong the colour is shows the travel season: full colour means high season, soft colour means shoulder season and soft-striped means off season.
Weather symbols:
Each month has one symbol showing what the weather is typically like, such as hot and sunny, freezing or a rainy or snowy season. Use them to quickly spot months that match the weather you want, or to avoid the ones that don't.
Crowdedness:
The people icon shows how busy the place usually is. The more people, the more crowded it gets.
Additional notes:
The grey info boxes point out special things worth knowing, like recurring weather issues or seasonal events.
Leuven’s climate is shaped by its central Belgian location and Atlantic influences, resulting in moderate temperatures and rainfall throughout the year. Summers (June–August) are mild and comfortable, with average highs of 23–24°C and lows around 13–15°C. July is typically the warmest and sunniest month, offering up to 7 hours of sunshine daily and long daylight hours. Rain is moderate in summer, with July and August each receiving about 61–79 mm of precipitation, often as short showers or thunderstorms. Humidity is moderate to high, but summer evenings remain pleasant for outdoor activities.
Winters (December–February) are cool and often cloudy, with average highs of 7–8°C and lows of 1–3°C. Snow is possible, especially in January and February, but heavy accumulations are rare. Rainfall is frequent, with December and January among the wettest months (59–83 mm), and sunshine is limited to just 1–2 hours per day. Spring (March–May) and autumn (September–November) are transitional, featuring mild temperatures (12–19°C in spring, 11–21°C in autumn), blooming or colourful landscapes, and moderate rainfall. April is the driest month, while August is the wettest. Leuven receives about 780–830 mm of precipitation annually and enjoys 1,600–1,800 hours of sunshine per year. Winds are generally gentle, but can be brisk during storms, especially in winter and early spring.
| Average climate data for Leuven, Belgium | |||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Month | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Year |
| Average maximum temperature (°C) | 5 | 6 | 11 | 15 | 17 | 21 | 23 | 23 | 19 | 15 | 10 | 6 | 23 |
| Average minimum temperature (°C) | 1 | 1 | 3 | 6 | 8 | 12 | 14 | 14 | 11 | 8 | 5 | 2 | 1 |
| Average precipitation (mm) | 42 | 45 | 43 | 17 | 27 | 27 | 20 | 24 | 16 | 30 | 44 | 56 | 392 |
| Average rainfall days (days) | 17 | 15 | 15 | 11 | 14 | 12 | 12 | 10 | 8 | 13 | 16 | 19 | 162 |
| Average snowfall (mm) | 34 | 42 | 7 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 4 | 22 | 108 |
| Average snowfall days (days) | 4 | 5 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 3 | 15 |
| Average relative humidity (%) | 86 | 83 | 78 | 74 | 78 | 78 | 76 | 75 | 79 | 84 | 86 | 88 | 80 |
| Average wind speed (km/h) | 17 | 18 | 16 | 13 | 13 | 12 | 12 | 12 | 12 | 14 | 16 | 18 | 14 |
| Average daily daylight hours (h) | 8 | 10 | 11 | 13 | 15 | 16 | 16 | 14 | 12 | 10 | 9 | 8 | 12 |
| Average daily sunshine hours (h) | 3 | 4 | 5 | 8 | 8 | 8 | 9 | 9 | 7 | 5 | 4 | 3 | 6 |
| Average cloud coverage (%) | 62 | 59 | 53 | 40 | 45 | 45 | 43 | 41 | 41 | 48 | 58 | 62 | 50 |
| Average UV index | 2 | 2 | 3 | 3 | 4 | 5 | 5 | 5 | 4 | 3 | 2 | 2 | 3 |
The best time to visit Leuven is from May to September, when temperatures are warm (18–24°C), days are long, and the city is lively with festivals and outdoor events. These months offer the most sunshine and comfortable evenings, ideal for sightseeing, cycling, and enjoying Leuven’s parks and historic centre.
The least favourable time to visit is from November to February, when days are shortest, temperatures are coolest (highs of 7–8°C, lows of 1–3°C), and rain or drizzle is frequent. Outdoor activities are limited, but the city’s museums and cafés offer cosy refuge from the chilly, damp weather.
Leuven has mild, pleasant summers (highs 23–24°C) and cool, damp winters (highs 7–8°C, lows 1–3°C). Rain falls year-round, peaking in late summer and winter, and the city enjoys distinct seasons.
Snow is possible from December to February, but heavy accumulation is rare. Most winter precipitation falls as rain or drizzle, and frosty mornings are frequent.
May to August are the sunniest months, with up to 7 hours of sunshine daily. Winter months are much gloomier, with only 1–2 hours of sun per day.
Leuven receives about 780–830 mm of rain annually, with the wettest months being August and December. Rain is moderate and spread fairly evenly throughout the year, with 9–13 rainy days per month.
Pack warm, waterproof layers for winter and spring, and light clothes plus sun protection for summer. Even in summer, evenings can be cool. Always bring layers and a rain jacket, as weather can change quickly.
Yes, late spring to early autumn is ideal for outdoor activities, with mild to warm temperatures, long days, and lively parks and terraces. Winter is best for cosy indoor experiences and exploring historic sites.
Leuven is inland and does not have beaches, but there are riverside parks and pools for summer relaxation. The Belgian coast is about 1.5 hours away by train for those seeking the beach.
The warmest month, with the highest average maximum temperature, is July (23.3 °C). The month with the lowest average maximum temperature is January (4.8 °C). Overall, the average maximum temperature over the whole year is 14.3 °C.
The month with the highest average minimum temperature is August (13.9 °C). The coldest month, with the lowest average minimum temperature, is January (1.1 °C). Overall, the average minimum temperature over the whole year is 7.1 °C.
The wettest month, with the highest amount of precipitation, is December (56.4 mm). The driest month, with the least amount of precipitation, is September (16.1 mm). Over the whole year there are 392.1 mm of rainfall on average.
The month with the most days of rain is December (18.6 days). The month with the fewest days of rain is September (8.4 days). Over the whole year there are 161.6 days of rain on average.
The month with the most snowfall is February (41.6 mm). The months with the least snowfall are April, May, June, July, August, September and October (0 mm). Over the whole year there are 108.3 mm of snowfall on average.
The month with the most days of snowfall is February (5.1 days). The months with the fewest days of snowfall are June, August, September and October (0 days). Over the whole year there are 14.5 days of snowfall on average.
The month with the highest average relative humidity is December (87.9 %). The month with the lowest average relative humidity is April (74.2 %). The overall average relative humidity over the whole year is 80.4 %.
The windiest month, with the highest average wind speed, is December (18.2 km/h). The calmest month, with the lowest average wind speed, is August (11.8 km/h). The overall average wind speed over the whole year is 14.3 km/h.
The month with the cloudiest skies, so the highest cloud coverage, is January (62.1 %). The month with the clearest skies, so the lowest cloud coverage, is April (40.1 %). Over the whole year there is an average cloud coverage of 49.7 %.
The month with the longest days, so the most daylight, is June (Average daylight: 16 h). The month with the shortest days, so the least daylight, is December (Average daylight: 8 h). Over the whole year there are 11.9 h of daylight per day on average.
The month with the most sunshine per day is August (Average sunshine: 9 h). The month with the least sunshine per day is December (Average sunshine: 3.1 h). Over the whole year there are 6.1 h of sunlight per day on average.
The months with the highest average UV index are June, July and August (UV index: 5). The months with the lowest average UV index are January, February, November and December (UV index: 2). Over the whole year the average UV index is 3.3.
