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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 7.4–15°C, 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 19.3–20.7°C, 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 15.7–6.3°C, 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 3.0–4.9°C, 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. 11.5°C / Annual rainfall: approx. 1105 mm / Summer humidity: 65%–75% / Rainiest month: May

Aargau monthly average temperature and precipitation

Month
Air temperature (°C)
Precipitation (mm)
January
2.4°C
63
February
4.9°C
46.3
March
7.4°C
82.3
April
9.4°C
87.3
May
15°C
127
June
19.3°C
97
July
20.7°C
95.7
August
20.7°C
99.7
September
15.7°C
107.7
October
12.7°C
78.7
November
6.3°C
118.3
December
3°C
102

Aargau weather for the next seven days

12/16
Tuesday
Sunny
4.8°C/-0.8°C
12/17
Wednesday
Partly Cloudy
8°C/0.4°C
12/18
Thursday
Sunny
8°C/-0.1°C
12/19
Friday
Sunny
8.3°C/0°C
12/20
Saturday
Patchy rain nearby
6.7°C/2.8°C
12/21
Sunday
Partly Cloudy
5.8°C/0.9°C
12/22
Monday
Partly Cloudy
6.4°C/1.9°C

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.