Spring (March–May): Average 7.5–15.1°C, mild climate but with relatively high rainfall, especially in May. Popular activities: Lakeside walks, boat trips, visiting castles and attractions in the surrounding area. Recommended clothing: Light jacket, comfortable casual wear, and rain gear.
Summer (June–August): Average 19.5–20.7°C, warm and humid climate with abundant sunshine, ideal for water sports. Popular activities: Swimming, sailing, windsurfing, cycling, exploring the towns around the lake. Recommended clothing: Light and breathable clothing, sun hat, sunglasses, and sunscreen.
Autumn (September–November): Average 12.5–15.8°C, pleasant climate, but with relatively high rainfall and a larger temperature difference between day and night. Popular activities: Visiting wineries, tasting local cuisine, hiking. Recommended clothing: Comfortable long-sleeved shirts, light jacket, and shoes suitable for outdoor activities.
Winter (December–February): Average 2.2–4.9°C, cold and humid climate, with occasional snowfall. Popular activities: Enjoying lake views, indoor activities, spa treatments. Recommended clothing: Warm jacket, scarf, hat, gloves, and waterproof shoes.
Weather in Lake Constance
Annual average temperature: approx. 11°C / Annual rainfall: approx. 1044 mm / Summer humidity: 70%–80% / Rainiest month: May
Lake Constance weather by month
Month
Temperature (°C)
Rainfall (mm)
January
2.2°C
48.4
February
4.9°C
40.4
March
7.5°C
67.7
April
9.4°C
96.7
May
15.1°C
131.2
June
19.5°C
112.8
July
20.7°C
91.7
August
20.6°C
118.9
September
15.8°C
96.8
October
12.5°C
72.2
November
6.2°C
92.6
December
2.8°C
75.1
7-day weather forecast for Lake Constance
11/6
Friday
Overcast
8.6°C/-1.4°C
11/7
Saturday
Mist
11°C/2.4°C
11/8
Sunday
Mist
11.5°C/0.9°C
11/9
Monday
Mist
11.1°C/1.3°C
11/10
Tuesday
Light rain
9.1°C/6.1°C
11/11
Wednesday
Fog
11.6°C/5.8°C
11/12
Thursday
Patchy rain nearby
12.3°C/6.7°C
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