Lake Lucerne water temperature in July

Is it warm enough to swim in Lake Lucerne in July? Average water temperature in Lake Lucerne in July is 20.1°C and therefore suitable for comfortable swimming. The warmest water in Lake Lucerne in July is 24°C, and the coldest is 17°C. To find out the water temperature today and in the coming days, go to Current water temperature in Lake Lucerne

Changes water temperature in Lake Lucerne in July 2025, 2024

To get an accurate forecast for the water temperature in Lake Lucerne for any chosen month, compare two years within a 10 year range using the chart below.

You can choose any other years:

Day	2025	2024
1 July	20°C	18°C
2 July	20°C	18°C
3 July	20°C	18°C
4 July	20°C	17°C
5 July	20°C	17°C
6 July	20°C	18°C
7 July	19°C	18°C
8 July	19°C	18°C
9 July	18°C	18°C
10 July	18°C	19°C
11 July	18°C
12 July	19°C
13 July	20°C
14 July	20°C
15 July	20°C

Day	2025	2024
16 July	21°C
17 July	21°C
18 July	21°C
19 July	20°C	20°C
20 July	20°C
21 July	20°C	20°C
22 July	20°C	20°C
23 July	19°C	20°C
24 July	19°C	20°C
25 July	18°C	20°C
26 July	18°C	20°C
27 July	17°C	21°C
28 July	17°C	21°C
29 July	17°C	21°C
30 July	17°C	22°C
31 July	17°C	21°C

You can also view information about water temperature for other months by clicking on the month button below

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Our report for Lake Lucerne is compiled using satellite data together with in-situ observations to get the most reliable daily data of sea surface temperatures, surf forecasts, current temperatures and weather forecasts.

Region

Date (day and month)

Water temperature: min 16°C

Average temperature Maximum temperature

Water temperature in Lake Lucerne in July

Changes water temperature in Lake Lucerne in July 2025, 2024

You can choose any other years:

Lake Lucerne water temperature during other months:

Where is the warm sea water in July?

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