Spring (March–May): Average 7.3–15.1°C, mild and rainy with occasional overcast days. Temperatures gradually increase from March to May, offering pleasant scenery. Common activities: Lakeside walks, cycling, exploring Konstanz's old town. Recommended clothing: Light jacket, comfortable trousers or skirt, comfortable shoes.
Summer (June–August): Average 19.3–20.5°C, warm and humid with abundant sunshine and occasional showers. This is the warmest and most popular tourist season in Konstanz. Common activities: Swimming, water sports, sunbathing on Lake Constance. Recommended clothing: Light and breathable clothing, hat, sunscreen.
Autumn (September–November): Average 15.8–6.3°C, cool with higher rainfall and variable weather. Leaves begin to change color, creating stunning scenery. Common activities: Hiking, tasting local wines. Recommended clothing: Warm jacket, comfortable trousers, waterproof jacket.
Winter (December–February): Average 2.9–4.9°C, cold and humid with frequent rain or snow. The lake may freeze over. Common activities: Visiting indoor museums, enjoying local cuisine. Recommended clothing: Heavy coat, warm clothing, waterproof shoes.
Weather in Konstanz
Annual average temperature: approx. 11°C / Annual rainfall: approx. 938 mm / Summer humidity: 65%–75% / Rainiest month: August
Konstanz weather by month
Month
Temperature (°C)
Rainfall (mm)
January
2.4°C
42.9
February
4.9°C
33.5
March
7.3°C
56.2
April
9.4°C
72
May
15.1°C
125.7
June
19.3°C
98.1
July
20.5°C
68.4
August
20.5°C
146.4
September
15.8°C
80.7
October
12.4°C
64.6
November
6.3°C
82.1
December
2.9°C
67.6
7-day weather forecast for Konstanz
10/31
Saturday
Sunny
11.5°C/1.7°C
11/1
Sunday
Overcast
9.6°C/3.8°C
11/2
Monday
Overcast
7.4°C/1.3°C
11/3
Tuesday
Overcast
9.2°C/1.9°C
11/4
Wednesday
Patchy rain nearby
6.3°C/3.7°C
11/5
Thursday
Cloudy
7.7°C/2°C
11/6
Friday
Mist
7.1°C/0.8°C
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