All data are in degrees Fahrenheit

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Water temperature in Thonon-les-Bains

Detailed information about the current water temperature in Thonon-les-Bains. The trend over the last two weeks, daily averages, and precise forecast of the water temperature changes. Gain a deeper understanding of seasonal dynamics with monthly statistical analyses covering recent years.
Water temperature in Thonon-les-Bains now

74.7

°F

September 7, 07:18

Trend:

decreasing

Yesterday:

74.8°F

Tomorrow:

74.0°F

Sunrise:

07:01

Sunset:

20:02

Day Length:

13 h. 1 min.

Thonon-les-Bains in September

Minimum:

44.5°F

Average:

46.1°F

Maximum:

49.0°F

Water temperature in Thonon-les-Bains today

As of now, in Thonon-les-Bains, the water temperature is 74.7°F. It's safe to say that the water is comfortably warm for various water-related activities. Today's reading is 3.6°F higher than the average recorded on this particular day in recent years. The water temperature remains approximately unchanged from yesterday. According to the forecast, we expect the temperature to fall a bit.

Recent water temperature and forecast

The water temperature today is above average for the last two weeks, showing a small increase in temperature. It is also close to the historical maximum temperature for this date. The maximum temperature recorded for this date was 73.1°F on 2023, while the historical minimum was 69.4°F on 2021.

Over the last two weeks, the water temperature has stayed slightly above than historical averages for those days. The forecast for the upcoming week shows a gradual cooling trend. The average temperature is expected to be 73.5°F, the minimum temperature may reach 72.9°F, and the maximum might stay at 74.0°F.

Daily water temperature in Thonon-les-Bains

Date Current Year

actual* / forecast**

last year 10 years average
Aug 24 73.7°F 72.8°F 72.9°F
Aug 25 73.6°F 72.4°F 72.9°F
Aug 26 74.1°F 72.5°F 72.8°F
Aug 27 74.6°F 72.6°F 72.7°F
Aug 28 73.9°F 72.4°F 72.5°F
Aug 29 74.2°F 72.0°F 72.4°F
Aug 30 74.1°F 72.6°F 72.6°F
Aug 31 74.1°F 71.8°F 72.5°F
Sep 1 74.0°F 71.6°F 72.3°F
Sep 2 73.7°F 70.1°F 72.0°F
Sep 3 73.4°F 69.1°F 71.6°F
Sep 4 74.0°F 69.7°F 71.5°F
Sep 5 73.9°F 70.0°F 71.2°F
Sep 6 74.8°F 70.4°F 71.2°F
Sep 7 74.7°F 70.0°F 71.1°F
Sep 8 74.0°F 69.9°F 70.4°F
Sep 9 74.0°F 69.4°F 70.4°F
Sep 10 73.9°F 68.9°F 70.3°F
Sep 11 73.5°F 70.2°F 69.9°F
Sep 12 73.1°F 67.8°F 69.6°F
Sep 13 73.0°F 67.7°F 69.4°F
Sep 14 72.9°F 67.4°F 69.3°F

* actual - actual temperature values

** forecast - projected values for the next week

Real-time coastal temperatures could deviate by several degrees from the provided readings. These deviations often become evident following intense rainfall or strong winds.

Our forecasting methodology leverages a mathematical model, that uses current water and weather conditions, historical records, wind intensity and direction.

Water temperature in Thonon-les-Bains by month

In Thonon-les-Bains, there are only 21 days through the year when the water is warm enough to be comfortable for swimming.
The warmest water in Thonon-les-Bains was recorded on July 1, 2026, reaching a 79.8°F. While the coldest temperature occurred on February 14, 2017, dipping to 42.7°F. The average readings by season are 46.1°F in Winter, 51.2°F in Spring, 70.4°F in Summer, and 61.3°F in Autumn.