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Aachen Weather and Climate: A Comprehensive Guide

The temperature in Aachen can vary greatly throughout the year. The temperatures shift from warm to cold. It receives a reasonable amount of rain/snowfall. Now, let’s explore all the climate details to give you a full picture.

Average maximum day and minimum night temperature

Depending on the time of the year, temperatures range from comfortable to chilly in Aachen. Average daytime temperatures reach a comfortable 24°C in July. In January, the coolest month of the year, temperatures drop to a chilly 6°C.

At night, you can expect cooler temperatures, with averages dropping to around 1°C during this month. Check out our detailed temperature page for more information.

Temperature ranges by month

Precipitation and rainy days

Generally, Aachen has a moderate amount of precipitation, averaging 936 mm of rain/snowfall annually. Despite minor fluctuations, Aachen enjoys fairly consistent precipitation throughout the year. In December, you can expect around 90 mm of precipitation, while in April, Aachen receives about 62 mm.

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

Sunshine over the year

Aachen can be enjoyed more throughout the sunniest month of July under a blue sky, with approximately 7.0 hours of sunshine daily. In contrast, the city experiences much darker days in December, with only 1.8 hours of sunlight per day. Visit our detailed sunshine hours page for more information.

Monthly hours of sunshine

Data from: Maastricht, the Netherlands (26 KM, 16 Miles).

Daily hours of sunshine

Data from: Maastricht, the Netherlands (26 KM, 16 Miles).

Forecast for Aachen

Tue   Dec 24
7°C | 2°C
SW 5 m/s
1.6 mm
overcast and rain

overcast and rain

Wed   Dec 25
9°C | 6°C
SW 3 m/s
0.7 mm
overcast and  chance of slight rain

overcast and chance of slight rain

Thu   Dec 26
10°C | 4°C
E 3 m/s
partly cloudy and no rain

partly cloudy and no rain

The best time of year to visit Aachen 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 Aachen?
    July has an average maximum temperature of 24°C and is the warmest month of the year.
  • Which is the coldest month in Aachen?
    The coldest month is January with an average maximum temperature of 6°C.
  • Which is the wettest month in Aachen?
    December tops the wettest month list with 90 mm of rainfall.
  • Which is the driest month in Aachen?
    April is the driest month with 62 mm of precipitation.
  • Which is the sunniest month in Aachen?
    July is the sunniest month with an average of 211 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.