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

56.4

°F

May 5, 13:52

Trend:

increasing

Yesterday:

56.4°F

Tomorrow:

56.7°F

Sunrise:

06:15

Sunset:

20:48

Day Length:

14 h. 33 min.

Thonon-les-Bains in May

Minimum:

45.1°F

Average:

46.7°F

Maximum:

48.1°F

Water temperature in Thonon-les-Bains today

As of now, in Thonon-les-Bains, the water temperature is 56.4°F. Swimming in water of this temperature is considered as extremely cold, and there's a substantial risk of hypothermia if exposed for more than a brief duration. Today's reading is 2.3°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 rise a bit.

Recent water temperature and forecast

Today's water temperature is notably higher than the average recorded over the past two weeks, indicating a significant warming trend. It is also close to the historical maximum temperature for this date. The maximum temperature recorded for this date was 58.3°F on 2025, while the historical minimum was 52.4°F on 2017.

Over the last two weeks, the water temperature has stayed slightly above than historical averages for those days. The forecast for the upcoming week suggests a gradual increase. The average temperature is expected to rise up to 57.3°F, with minimum temperature starting at 56.7°F, while the maximum might reach 58.0°F.

Daily water temperature in Thonon-les-Bains

Date Current Year

actual* / forecast**

last year 10 years average
Apr 21 54.6°F 53.3°F 51.6°F
Apr 22 53.5°F 51.9°F 51.5°F
Apr 23 52.0°F 53.3°F 52.0°F
Apr 24 53.9°F 53.4°F 52.6°F
Apr 25 53.7°F 53.5°F 53.0°F
Apr 26 55.4°F 52.9°F 53.1°F
Apr 27 55.9°F 53.2°F 53.2°F
Apr 28 55.1°F 54.0°F 53.2°F
Apr 29 56.8°F 55.3°F 53.5°F
Apr 30 55.5°F 57.0°F 53.8°F
May 1 54.2°F 58.0°F 53.6°F
May 2 56.3°F 59.4°F 54.1°F
May 3 56.4°F 59.0°F 54.0°F
May 4 56.4°F 58.6°F 54.1°F
May 5 56.4°F 58.3°F 54.1°F
May 6 56.7°F 58.1°F 54.4°F
May 7 56.9°F 57.9°F 54.6°F
May 8 57.1°F 57.8°F 54.8°F
May 9 57.4°F 57.7°F 55.1°F
May 10 57.6°F 57.8°F 55.3°F
May 11 57.8°F 58.0°F 55.5°F
May 12 58.0°F 58.3°F 55.7°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 8 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 August 24, 2023, reaching a 77.8°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, 51.1°F in Spring, 70.1°F in Summer, and 61.3°F in Autumn.