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Aargau

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Aargau Weather, Climate and Best Time to Visit

Data source:Meteostat
Update date:2025-09

Aargau year round climate

  • Spring (March–May): Average 45–59°F, mild and rainy, gradually warming from March, with the most rainfall in May. Common activities: Hiking, cycling, visiting castles. Recommended clothing: Light jacket, long-sleeved shirt, comfortable shoes.
  • Summer (June–August): Average 66–69°F, warm and humid, sunny with occasional showers. Common activities: Outdoor swimming, water sports, visiting museums. Recommended clothing: Short-sleeved shirts, shorts, light and breathable clothing.
  • Autumn (September–November): Average 60–43°F, cool and rainy, temperatures dropping significantly after October. Common activities: Leaf-peeping, trying local cuisine, visiting wineries. Recommended clothing: Light jacket, long-sleeved shirt, comfortable shoes.
  • Winter (December–February): Average 37–40°F, cold and humid, with occasional snowfall. Common activities: Skiing, indoor activities, enjoying hot drinks. Recommended clothing: Warm jacket, scarf, hat, gloves.

Aargau climatological average

Annual average temperature: approx. 52.7°F / Annual rainfall: approx. 1105 mm / Summer humidity: 65%–75% / Rainiest month: May

Aargau monthly average temperature and precipitation

Month
Air temperature (°F)
Precipitation (mm)
January
36.3°F
63
February
40.8°F
46.3
March
45.3°F
82.3
April
48.9°F
87.3
May
59°F
127
June
66.7°F
97
July
69.3°F
95.7
August
69.3°F
99.7
September
60.3°F
107.7
October
54.9°F
78.7
November
43.3°F
118.3
December
37.4°F
102

Aargau weather for the next seven days

3/16
Monday
Patchy rain nearby
46.4°F/32°F
3/17
Tuesday
Partly Cloudy
51.6°F/34.7°F
3/18
Wednesday
Sunny
50.1°F/34.5°F
3/19
Thursday
Partly Cloudy
50.9°F/34.5°F
3/20
Friday
Partly Cloudy
49.8°F/33.3°F
3/21
Saturday
Partly Cloudy
49.8°F/30.8°F
3/22
Sunday
Patchy rain nearby
52.5°F/36.8°F