Genval

What is the climate like in Genval?

The best time to visit Genval is typically June – August, with trip comfort peaking in July (6.9/10). Genval is warmest in August, when daily highs average 74°F (23°C), and coolest in January, when lows fall to about 35°F (2°C). The wettest month is typically January and the driest is April; the year sees roughly 34 in (862 mm) of precipitation.

• Best time to visitJune – August — comfort peaks in July (6.9/10)
• Warmest monthAugust — average high 74°F (23°C)
• Coolest monthJanuary — average low 35°F (2°C)
• Wettest monthJanuary (3.4 in (87 mm))
• Driest monthApril (2.0 in (52 mm))
• Annual precipitation34 in (862 mm)
• Based on2016-2025 daily ERA5 reanalysis data (10-year normals)
• Records fromUccle, 13 km away (1833-2026)