Climate averages 1991–2020
Liège weather
in August.
A warm, moderately wet month: the 2nd warmest and the 11th driest of the year.
Long-term climate patterns, not a forecast for a particular trip.
August is a warm month in Liège: daytime highs average 22.6°C and nights cool to about 14.4°C. By daytime temperature it is the 2nd warmest of the 12 months.
Expect about 79 mm of rain on roughly 12 days, which makes August a moderately wet month (the 11th driest of the 12 months). Daylight, from sunrise to sunset, lasts about 14 h 32 min on an average August day.
The nearest other city in this atlas is Maastricht (25 km away). In August its highs average 22.6°C, about as warm as Liège, with 77 mm of rain.
Among the 18 cities listed in Belgium, Liège ranks joint 1st of 18 for the warmest August highs and 18th of 18 for the driest August (rainfall, lowest first). The mean August high of those 18 cities is 22.3°C; Liège is 0.2°C warmer than that mean.
From August to September, average highs fall by 3.6°C to 19.0°C, and monthly rainfall falls from 79 mm to 62 mm.
The annual picture
August in context
Monthly rainfall
Average total · mmAverages from hourly ERA5 reanalysis data. Actual weather varies from year to year. How these numbers are calculated
Every month, side by side
Liège climate table
| Month | Average highHigh / low | Average low | Rainfall mm/month | Rain days ≥1 mm/day | Daylight hours/dayDaylight h/day |
|---|---|---|---|---|---|
| January | 5.6°C1.0°C | 1.0°C | 70 | 13.0 | 8.59 h |
| February | 6.7°C1.0°C | 1.0°C | 64 | 12.1 | 10.010 h |
| March | 10.3°C2.9°C | 2.9°C | 64 | 13.2 | 11.812 h |
| April | 14.2°C5.5°C | 5.5°C | 52 | 11.2 | 13.814 h |
| May | 17.8°C9.3°C | 9.3°C | 63 | 12.7 | 15.515 h |
| June | 20.7°C12.3°C | 12.3°C | 74 | 12.7 | 16.416 h |
| July | 22.7°C14.5°C | 14.5°C | 78 | 12.9 | 16.016 h |
| August, selected | 22.6°C14.4°C | 14.4°C | 79 | 12.3 | 14.515 h |
| September | 19.0°C11.6°C | 11.6°C | 62 | 10.8 | 12.713 h |
| October | 14.6°C8.6°C | 8.6°C | 63 | 11.8 | 10.811 h |
| November | 9.6°C4.9°C | 4.9°C | 67 | 12.6 | 9.09 h |
| December | 6.3°C2.1°C | 2.1°C | 82 | 14.0 | 8.18 h |
Rainfall is the average of the 30 separate monthly totals. A rain day is a local calendar day with at least 1 mm of precipitation. Daylight is the calculated sunrise-to-sunset length, not measured sunshine.
Compare places
August in nearby cities
- Maastricht in AugustThe Netherlands · 25 kmHigh 22.6°C · Low 14.3°C · 77 mm rain
- Hasselt in AugustBelgium · 37 kmHigh 22.6°C · Low 14.3°C · 75 mm rain
- Aachen in AugustGermany · 40 kmHigh 22.0°C · Low 14.0°C · 79 mm rain
- Heerlen in AugustThe Netherlands · 40 kmHigh 22.4°C · Low 14.2°C · 67 mm rain
- Namur in AugustBelgium · 53 kmHigh 22.5°C · Low 14.2°C · 78 mm rain
- Leuven in AugustBelgium · 67 kmHigh 22.6°C · Low 14.2°C · 73 mm rain
- Düren in AugustGermany · 68 kmHigh 22.4°C · Low 14.0°C · 79 mm rain
- Charleroi in AugustBelgium · 83 kmHigh 22.1°C · Low 13.9°C · 76 mm rain
Read the numbers correctly
Climate, not a promise.
These patterns help compare months. They cannot tell you the weather on a specific day of your trip.
Sources, method and limitsHow these numbers are made (what the highs, lows and rain days mean, the sources and the model cell used for Liège) is explained once on the Liège year overview and on the Sources, method and limits page.