Hamm

What is the climate like in Hamm?

The best time to visit Hamm is typically May – September, with trip comfort peaking in August (7.1/10). Hamm is warmest in August, when daily highs average 76°F (24°C), and coolest in January, when lows fall to about 35°F (1°C). The wettest month is typically January and the driest is April; the year sees roughly 34 in (859 mm) of precipitation.

• Best time to visitMay – September — comfort peaks in August (7.1/10)
• Warmest monthAugust — average high 76°F (24°C)
• Coolest monthJanuary — average low 35°F (1°C)
• Wettest monthJanuary (3.5 in (88 mm))
• Driest monthApril (2.2 in (57 mm))
• Annual precipitation34 in (859 mm)
• Based on2016-2025 daily ERA5 reanalysis data (10-year normals)
• Records fromWerl, 12 km away (1980-2026)