Thonon-les-Bains Weather & Climate: Best Time to Visit

In Thonon-les-Bains, temperatures differ significantly between summer and winter months. Average maximum daytime temperatures range from a comfortable 23°C (73°F) in July, the warmest time of the year, to a chilly 5°C (41°F) during cooler months like January.

At night, you can expect temperatures ranging from 14°C (57°F) in July to around -2°C (28°F) during January.

Check out our detailed temperature page for more information.

Temperature ranges by month

Thonon-les-Bains experiences significant rain/snowfall throughout the year, averaging 1503 mm (59 in) of precipitation annually. Year-round, Thonon-les-Bains has a balanced climate with minimal variation in precipitation. The difference between the wettest month, May, with 147 mm (5.8 in), and the driest month, March, with 109 mm (4.3 in), is minimal. For more details, please visit our Thonon-les-Bains Precipitation page.

The mean monthly precipitation over the year, including rain, hail, and snow

The average number of days each month with precipitation

Seasonal changes in sunshine hours are quite dramatic in Thonon-les-Bains. While July receives considerable daily sunshine with up to 8.6 hours, December marks the darkest time of the year, where sunshine is scarce with only 1.9 hours of sunlight per day.

Visit our detailed sunshine hours page for more information.

Monthly hours of sunshine

Daily hours of sunshine

Daily percentage of sunshine

The relative humidity is high throughout the year in Thonon-les-Bains.

The city experiences its highest humidity in January, reaching 78%. In July, the humidity drops to its lowest level at 65%. What does this mean? Read our detailed page on humidity levels for further details.

Relative humidity over the year