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Water temperature in Zurich in September

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Is it warm enough to swim in Zurich in September? Average water temperature in Zurich in September is 16.4°C and therefore is not suitable for comfortable swimming. The warmest water in Zurich in September is 22°C, and the coldest is 10°C. Average high air temperature in Zurich in September is 19°C, and average low temperature is 11°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 September 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 September17°C22°C
2 September17°C22°C
3 September17°C22°C
4 September16°C21°C
5 September17°C21°C
6 September17°C20°C
7 September17°C19°C
8 September16°C18°C
9 September 17°C
10 September 15°C
11 September 14°C
12 September 13°C
13 September 11°C
14 September 11°C
15 September 10°C
Day 2025 2024
16 September 10°C
17 September 11°C
18 September 11°C
19 September 12°C
20 September 13°C
21 September 14°C
22 September 14°C
23 September 14°C
24 September 14°C
25 September 14°C
26 September 14°C
27 September 13°C
28 September 13°C
29 September 13°C
30 September 12°C

Average water temperature in Zurich in September over a decade

20152016201720182019
15.3°C18.1°C14.6°C17.8°C16.7°C
20202021202220232024
17.3°C16.4°C15°C17.9°C14.9°C

Weather and climate in Zurich in September

This data display average monthly climate indicators in Zurich in September 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 temperature19°C
  • Average LOW temperature11°C
  • Average humidity
    79
  • Average rainfall days10 days
  • Average rainfall3.9''/99mm
  • Average daylight13h
  • Average sunshine5h
  • Average UV index5

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 September?

Want to know where the water temperature in September 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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