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Water temperature in Zurich in August

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Is it warm enough to swim in Zurich in August? Average water temperature in Zurich in August is 20.3°C and therefore suitable for comfortable swimming. The warmest water in Zurich in August is 27°C, and the coldest is 15°C. Average high air temperature in Zurich in August is 23°C, and average low temperature is 14°C. To find out the water temperature today and in the coming days, go to Current water temperature in Zurich

Changes water temperature in Zurich in August 2025, 2024

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

You can choose any other years:

Year 1:   Year 2:


Day 2025 2024
1 August17°C 
2 August17°C22°C
3 August18°C22°C
4 August18°C 
5 August18°C 
6 August19°C21°C
7 August21°C22°C
8 August21°C22°C
9 August22°C22°C
10 August24°C23°C
11 August23°C23°C
12 August23°C23°C
13 August24°C 
14 August24°C23°C
15 August24°C24°C
Day 2025 2024
16 August24°C23°C
17 August23°C21°C
18 August22°C21°C
19 August21°C20°C
20 August20°C20°C
21 August19°C19°C
22 August18°C19°C
23 August18°C19°C
24 August18°C19°C
25 August18°C19°C
26 August18°C19°C
27 August19°C20°C
28 August18°C20°C
29 August19°C21°C
30 August 21°C
31 August18°C22°C

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Average water temperature in Zurich in August over a decade

20162017201820192020
19.4°C19.8°C22.9°C20°C21.3°C
20212022202320242025
18.1°C19.8°C19.9°C21.1°C20.2°C

Weather and climate in Zurich in August

This data display average monthly climate indicators in Zurich in August based on our historical weather readings over a period of ten years. In addition to temperature, we include data on the number of rainy and sunny days so you can have all the information about your destination before your trip

  • Average HIGH temperature23°C
  • Average LOW temperature14°C
  • Average humidity
    74
  • Average rainfall days12 days
  • Average rainfall4.9''/124mm
  • Average daylight14h
  • Average sunshine6.5h
  • Average UV index7

Zurich water temperature during other months:

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

Where is the warm sea water in August?

Want to know where the water temperature in August is good for swimming? Select the continent of interest, the day of the month and the required water temperature

Region
Date (day and month)
Water temperature: min 16°C
 Average temperature  Maximum temperature

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[1] - The "Blue Flag" is awarded to beaches which fulfill a number of criteria, including: the quality of the bathing water, which must be in accordance with the relevant European Union Directive environmental education and information and beach area management and safety.

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Our report for Zurich 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.

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