Spring (March–May): Average 46–58°F, mild climate with occasional showers, but generally pleasant. Common activities: Walking in city parks, visiting Aachen Cathedral. Recommended clothing: Light jacket, comfortable trousers or skirt, comfortable shoes.
Summer (June–August): Average 62–67°F, warm and humid, occasional showers or thunderstorms. Common activities: Hiking in the Aachen forest, enjoying open-air cafes. Recommended clothing: Short-sleeved shirts, shorts or skirts, breathable shoes, umbrella.
Autumn (September–November): Average 45–60°F, temperatures gradually decrease, more rainfall, changeable weather. Common activities: Visiting Aachen's museums, enjoying local cuisine. Recommended clothing: Light jacket or windbreaker, comfortable trousers or skirt, warm underwear.
Winter (December–February): Average 38–43°F, cold and humid, frequent rain or snow. Common activities: Experiencing the Christmas market atmosphere in Aachen (if in December). Recommended clothing: Thick coat, warm clothing, scarf, gloves, hat.
Aachen climatological average
Annual average temperature: approx. 52.9°F / Annual rainfall: approx. 971 mm / Summer humidity: 70%–80% / Rainiest month: October
Aachen monthly average temperature and precipitation
Month
Air temperature (°F)
Precipitation (mm)
January
38.7°F
72
February
43.3°F
77.3
March
46.2°F
67.6
April
49.1°F
61.3
May
58.3°F
83.9
June
62.4°F
67.5
July
66°F
95.8
August
67.3°F
69.6
September
61°F
88.1
October
55.8°F
109.8
November
45.7°F
83.1
December
40.6°F
95.6
Aachen weather for the next seven days
5/7
Thursday
Patchy rain nearby
55.4°F/43.1°F
5/8
Friday
Partly Cloudy
59.9°F/45.7°F
5/9
Saturday
Patchy rain nearby
66°F/43.8°F
5/10
Sunday
Moderate rain
66.8°F/48°F
5/11
Monday
Moderate rain
56.3°F/43°F
5/12
Tuesday
Patchy rain nearby
62.1°F/43.1°F
5/13
Wednesday
Patchy rain nearby
50.5°F/45.5°F
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