Thonon-les-Bains Weather in December
What's the weather like in Thonon-les-Bains (Rhône-Alpes) in December 2025?
The climate in Thonon-les-Bains during December can be summarized as cool and reasonably dry.
December is in the winter in Thonon-les-Bains and is typically the 2nd coldest month of the year. Daytime maximum temperatures average around a cold 4°C (40°F), whilst at night -2°C (29°F) is normal.
| Daytime temperature | 4.2°C 39.5°F |
|---|---|
| Nightly temperature | -1.6°C 29.2°F |
| Average temperature | 1.3°C 34.3°F |
| Daily sunshine | 2 hrs |
| Avg rainfall | 80 mm 3.1 ins |
| Rainy days | 14 days |
| Sea temperature | 12.7°C 54.8°F |
| Humidity | 81% |
| Windspeed | 8.3kph 5 mph |
On average December is the 6th wettest month of the year in Thonon-les-Bains with around 80mm 3.1 inches of rain making it a reasonably dry time to visit. This rainfall is typically spread over 14 days, although this may vary considerably.
On the flip side this corresponds to an average of 2 hours of sunshine per day.
December temperatures in Thonon-les-Bains
December rainfall
December hourly sunshine
The data used in these monthly averages covers a period of over 100 years right up until last year. As such they are a valid prediction of what to expect for the weather in Thonon-les-Bains in December 2025.
Other monthly averages
Best places to visit in December
Thonon-les-Bains weather stats
| Hottest month: | July | 24.4°C 75.9°F |
|---|---|---|
| Driest month: | April | 68mm 2.7ins |
| Sunniest month: | July | 8.9hrs |
| Coldest month: | January | 3.3°C 37.9°F |
| Wettest month: | August | 92mm 3.6ins |
© Google
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