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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

12/16
Tuesday
Sunny
40.8°F/30.7°F
12/17
Wednesday
Patchy rain nearby
47.3°F/37.1°F
12/18
Thursday
Sunny
48.3°F/34.8°F
12/19
Friday
Sunny
47.4°F/32.9°F
12/20
Saturday
Patchy rain nearby
43.9°F/39.1°F
12/21
Sunday
Partly Cloudy
43.3°F/35.7°F
12/22
Monday
Partly Cloudy
42.1°F/35.4°F

Aargau Frequently Asked Questions and Useful Information for Travel

Is Aarau worth visiting?

Absolutely. While cities like Zurich, Geneva, and Lucerne are popular, Switzerland's magic often lies in its smaller towns and natural landscapes. Places like Aarau offer a more authentic and relaxed Swiss experience, away from tourist crowds.

What are the top attractions in Aargau?

Aargau boasts magnificent castles and historic sites. Explore Schloss Lenzburg, a museum offering insights into history, Schloss Hallwyl with its picturesque setting, and the impressive Schloss Wildegg. Stein Castle and the Swiss Children's Museum also provide unique experiences.

Is Aargau a German-speaking region?

German is the official language in Canton Aargau. While High German is used in formal settings like schools and media, Swiss German is commonly spoken in daily life.

What is the difference between Aarau and Aargau?

Aarau is the capital town and municipality of the northern Swiss canton of Aargau. Essentially, Aarau is the administrative center located within the broader region of Aargau.

What kind of experiences can I find in Aargau?

Aargau offers a delightful blend of history, culture, and natural beauty. You can immerse yourself in the past by visiting its numerous castles, enjoy authentic Swiss hospitality in its charming towns, and appreciate the serene landscapes that characterize the region.