Hamm Weather & Climate: Best Time to Visit

In Hamm, temperatures differ significantly between summer and winter months. Average maximum daytime temperatures range from a comfortable 24°C (75°F) in July, the warmest time of the year, to a chilly 5°C (41°F) during cooler months like January.

At night, you can expect temperatures ranging from 13°C (55°F) in July to around -1°C (30°F) during January.

Check out our detailed temperature page for more information.

Temperature ranges by month

Hamm experiences significant rain/snowfall throughout the year, averaging 1111 mm (44 in) of precipitation annually. While rainfall varies throughout the year, each season offers its own charm. December brings wetter days averaging 121 mm (4.8 in) of precipitation, spread over 17 rainy days.

In contrast, the driest month April experiences a drier climate, with about 70 mm (2.8 in) of rainfall spread across 15 rainy days. For more details, please visit our Hamm Precipitation page.

The mean monthly precipitation over the year, including rain, hail, and snow

The average number of days each month with precipitation

Seasonal changes in sunshine hours are quite dramatic in Hamm. While July receives considerable daily sunshine with up to 7.0 hours, December marks the darkest time of the year, where sunshine is scarce with only 1.4 hours of sunlight per day.

Visit our detailed sunshine hours page for more information.

Monthly hours of sunshine

Daily hours of sunshine