Liège climate
Liège (Belgium) has a temperate oceanic climate (Köppen Cfb). The average temperature over the year is 11 °C51 °F, and about 862 mm34 in of precipitation falls in an average year.
Temperature by month
Precipitation by month
Liège climate table
| Month | High °C°F | Low °C°F | Mean °C°F | Precip. mmin | Frost days |
|---|---|---|---|---|---|
| Jan | 540 | 032 | 236 | 813.2 | 17 |
| Feb | 643 | 032 | 337 | 722.8 | 16 |
| Mar | 1050 | 235 | 643 | 672.6 | 12 |
| Apr | 1559 | 541 | 1050 | 481.9 | 5 |
| May | 1966 | 948 | 1457 | 702.8 | 0 |
| Jun | 2272 | 1254 | 1763 | 722.9 | 0 |
| Jul | 2476 | 1458 | 1967 | 773.0 | 0 |
| Aug | 2475 | 1457 | 1966 | 873.4 | 0 |
| Sep | 2069 | 1051 | 1560 | 602.3 | 0 |
| Oct | 1559 | 745 | 1152 | 662.6 | 2 |
| Nov | 949 | 439 | 744 | 753.0 | 6 |
| Dec | 642 | 134 | 338 | 873.4 | 15 |
| Year | 2476 | 032 | 1151 | 86234 | 73 |
“Year” row: highest monthly high, lowest monthly low, annual mean and annual total. Frost days are for the whole grid cell.
| Month | Humid. | Cloud | Solar | Daylight |
|---|---|---|---|---|
| Jan | 94% | 77% | 0.8 | 8:26 |
| Feb | 92% | 74% | 1.5 | 9:57 |
| Mar | 87% | 69% | 2.7 | 11:43 |
| Apr | 81% | 64% | 4.2 | 13:44 |
| May | 80% | 69% | 5.0 | 15:28 |
| Jun | 77% | 69% | 5.4 | 16:27 |
| Jul | 74% | 67% | 5.2 | 16:03 |
| Aug | 74% | 66% | 4.4 | 14:31 |
| Sep | 78% | 63% | 3.4 | 12:32 |
| Oct | 86% | 70% | 2.0 | 10:36 |
| Nov | 93% | 77% | 1.0 | 8:52 |
| Dec | 95% | 77% | 0.6 | 7:00 |
Humid. = average relative humidity at 2 m; cloud = average cloud amount; solar = average daily solar energy reaching the ground in kWh/m² (all-sky); daylight in hours:minutes, calculated for the 15th of each month.
What the climate of Liège is like
The warmest month is July, with an average high of 24 °C76 °F and a low of 14 °C58 °F. The coldest is January, when highs average 5 °C40 °F and lows 0 °C32 °F. There is a clear seasonal cycle, with 17.1 °C30.7 °F between the average temperature of the warmest and the coolest month.
Annual precipitation is moderate at about 862 mm34 in. Rain is spread fairly evenly through the year. The wettest month is December (87 mm3.4 in), the driest is April (48 mm1.9 in).
Relative humidity ranges from 74% in July to 95% in December. The clearest skies (lowest average cloud amount, 63%) are typical of September. Average wind speed near the ground ranges from 9 km/h (6 mph) in August to 14 km/h (9 mph) in January. Daylight lasts from about 8.0 hours in December to 16.4 hours in June.
A lasting snow cover is typical in December–February, when the average snow depth in the reanalysis exceeds 10 cm (deepest in January, about 12 cm).
Best time to visit Liège
Based on these averages, the most comfortable months for sightseeing and outdoor activities are June–September: average highs of 20 °C69 °F to 24 °C76 °F with 60 mm2.3 in to 87 mm3.4 in of precipitation per month.
The most challenging month is January, which is cold, with average highs of 5 °C40 °F.
Comfort score: months are ranked by how close they come to an average high of 21–28 °C (70–82 °F), lows above 5 °C (41 °F), little precipitation and moderate humidity. The best-ranked months of each place are recommended, even where none meets all of these. These are general rules of thumb applied to long-term averages.
What to pack for Liège
- Winter (December–February) — highs 540 to 6 °C43 °F, lows 032 to 1 °C34 °F, about 80 mm3.1 in of precipitation a month. Pack a warm coat, layers and closed shoes.
- Spring (March–May) — highs 1050 to 19 °C66 °F, lows 235 to 9 °C48 °F, about 62 mm2.4 in of precipitation a month. Pack long sleeves, a sweater and a medium jacket.
- Summer (June–August) — highs 2272 to 24 °C76 °F, lows 1254 to 14 °C58 °F, about 79 mm3.1 in of precipitation a month. Pack light layers — T-shirts plus a light sweater or jacket and an extra layer for the cooler mornings and evenings.
- Autumn (September–November) — highs 949 to 20 °C69 °F, lows 439 to 10 °C51 °F, about 67 mm2.6 in of precipitation a month. Pack long sleeves, a sweater and a medium jacket.
How Liège compares
Compared with Aachen, about 40 km to the northeast, Liège is on average 1.4 °C2.5 °F warmer and receives 15% more precipitation (862 mm34 in vs 747 mm29 in). The difference is largest in December (1.6 °C3 °F warmer).
Of the 8 places in Belgium covered by World Climates, Liège is the warmest by annual mean temperature and the wettest by annual precipitation. See all of them on the Belgium climate page.
Places in other countries with the most similar temperature and rainfall pattern: Maastricht (The Netherlands, Cfb), Duisburg (Germany, Cfb) and Köln (Germany, Cfb).
Nearby places
- Maastricht 25 km · 11 °C51 °F · 771 mm30 in
- Aachen 40 km · 9 °C49 °F · 747 mm29 in
- Namur 53 km · 10 °C50 °F · 808 mm32 in
- Leuven 67 km · 11 °C51 °F · 763 mm30 in
- Charleroi 83 km · 10 °C50 °F · 776 mm31 in
- Mönchengladbach 87 km · 11 °C51 °F · 747 mm29 in
- Brussels 89 km · 10 °C51 °F · 764 mm30 in
- Eindhoven 90 km · 10 °C51 °F · 767 mm30 in
Frequently asked questions
What is the warmest month in Liège?
July is the warmest month in Liège, with an average high of 24 °C (76 °F) and an average low of 14 °C (58 °F).
What is the coldest month in Liège?
January is the coldest month, with an average high of 5 °C (40 °F) and an average low of 0 °C (32 °F).
When does it rain the most in Liège?
December is the wettest month with about 87 mm (3.4 in) of precipitation; April is the driest with about 48 mm (1.9 in).
What is the best time to visit Liège?
Judging by long-term averages, the most comfortable months are June–September.
About this data
All figures are 25-year averages (January 2001 – December 2025) from the NASA POWER project. Temperature, humidity, wind and precipitation come from the MERRA-2 reanalysis (precipitation is the bias-corrected MERRA-2 product), cloud and solar values from CERES satellite data. They describe a grid cell of roughly 50–70 km, not a single weather station, so they can differ from airport records — most of all on coasts, in mountains and for rainfall. Average highs and lows are the monthly mean temperature plus/minus half of the average daily temperature range. Counts of rainy days are not part of this dataset.
The grid cell’s average elevation is 266 m, while Liège lies at about 66 m. Temperatures on this page were therefore adjusted by +1.3 °C2.3 °F using the standard lapse rate of 6.5 °C per 1,000 m.