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Hamm Weather and Climate: A Comprehensive Guide

The climate in Hamm is marked by big temperature swings throughout the year. Temperatures range from warm during the warmest months to cold in the cooler months. It also has a notably wet climate with much precipitation. Let's now guide you through the climate details for a complete overview.

Average maximum day and minimum night temperature

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

At night, temperatures typically drop to an average of around -1°C during these months. Check out our detailed temperature page for more information.

Temperature ranges by month

Precipitation and rainy days

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

In contrast, April experiences a drier climate, with about 70 mm of rainfall spread across 15 rainy days.

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

Sunshine over the year

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

Data from: Bonn, Germany (40 KM, 25 Miles).

Daily hours of sunshine

Data from: Bonn, Germany (40 KM, 25 Miles).

Forecast for Hamm

Tue   Dec 24
5°C | 3°C
S 3 m/s
1 mm
overcast and  chance of slight rain

overcast and chance of slight rain

Wed   Dec 25
6°C | 3°C
SE 2 m/s
0.8 mm
overcast and slight rain

overcast and slight rain

Thu   Dec 26
9°C | 4°C
E 2 m/s
almost clear and no rain

almost clear and no rain

The best time of year to visit Hamm in Germany

During the months of June, July and August you are most likely to experience good weather with pleasant average temperatures that fall between 20°C and 26°C.

Other facts from our historical weather data:
  • Which is the warmest month in Hamm?
    July has an average maximum temperature of 24°C and is the warmest month of the year.
  • Which is the coldest month in Hamm?
    The coldest month is January with an average maximum temperature of 5°C.
  • Which is the wettest month in Hamm?
    December tops the wettest month list with 121 mm of rainfall.
  • Which is the driest month in Hamm?
    April is the driest month with 70 mm of precipitation.
  • Which is the sunniest month in Hamm?
    July is the sunniest month with an average of 210 hours of sunshine.

  • No idea where to travel to this year? We have a tool that recommends destinations based on your ideal conditions. Find out where to go with our weather planner.