World sea water temperatures

Water temperature in Anthy-sur-Leman (ARA) in September

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Is it warm enough to swim in Anthy-sur-Leman in September? Average water temperature in Anthy-sur-Leman in September is 19.9°C and therefore is not suitable for comfortable swimming. The warmest water in Anthy-sur-Leman in September is 23.6°C, and the coldest is 16.8°C. To find out the sea temperature today and in the coming days, go to Current sea temperature in Anthy-sur-Leman

Changes water temperature in Anthy-sur-Leman in September 2025, 2024

To get an accurate forecast for the water temperature in Anthy-sur-Leman for any chosen month, compare two years within a 10 year range using the chart below. In addition to the sea water temperature in Anthy-sur-Leman, the selected years in the table also show the values of the maximum and minimum temperatures on each of the days of September.

You can choose any other years:

Year 1:   Year 2:


Day 2025 2024 Min Max
1 September21°C22.9°C19.6°C23.6°C
2 September20.7°C22.4°C19.8°C22.9°C
3 September21.1°C22.4°C19.5°C22.7°C
4 September21.2°C22.4°C19.1°C22.6°C
5 September21.1°C22°C19.2°C22.8°C
6 September20.9°C21.4°C19.1°C22.7°C
7 September20.9°C20.8°C19.1°C22°C
8 September20.6°C20.7°C19.1°C22.8°C
9 September20.4°C21.2°C19.4°C22.7°C
10 September21.3°C20.6°C19.5°C22.8°C
11 September19.9°C20.4°C19.4°C22.7°C
12 September19.9°C20.1°C19.2°C22.4°C
13 September19.7°C19.9°C18.6°C22.5°C
14 September19.6°C19.8°C18.4°C21.9°C
15 September20.3°C19.7°C18.4°C21.9°C
Day 2025 2024 Min Max
16 September19.3°C19.6°C18.2°C22.2°C
17 September19.5°C19.6°C17.9°C21.5°C
18 September19.7°C19.5°C17.6°C21.3°C
19 September19.9°C19.4°C17.6°C21.7°C
20 September19.9°C19.3°C17.5°C22°C
21 September20°C19°C17.3°C21.5°C
22 September19.6°C18.8°C17.2°C21.1°C
23 September19.3°C18.5°C17.1°C21.2°C
24 September19°C18.3°C17°C20.7°C
25 September18.7°C18°C16.8°C20.3°C
26 September 17.8°C16.9°C19.9°C
27 September 17.5°C16.8°C19.8°C
28 September 17.5°C17°C19.5°C
29 September 17.4°C16.8°C19.3°C
30 September 17.3°C16.8°C19.3°C
Anthy-sur-Leman water temp chart in September

Average water temperature in Anthy-sur-Leman in September over a decade

20152016201720182019
19.3°C20.8°C18.9°C20.9°C20.2°C
20202021202220232024
20.7°C19.9°C20.5°C21.2°C19.8°C

Anthy-sur-Leman 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

Temperature in neighboring cities

The nearest locations with the average water temperature in September. In addition, the maximum and minimum water temperatures for that month, recorded over the last decade, are shown

AvrMinMax
Sciez19.9°C16.8°C23.6°C
Messery19.5°C16.4°C23.4°C
Chens sur Leman19.3°C16.2°C23.5°C
Geneva19.2°C16.1°C23.4°C
Hermance19.2°C16.1°C23.4°C
Coppet19.2°C16.1°C23.4°C
Radolfzell19.8°C16.3°C23.9°C
Allensbach19.8°C16.3°C23.9°C
Reichenau19.8°C16.3°C23.9°C
Moos19.8°C16.3°C23.9°C

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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 Anthy-sur-Leman 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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