Thonon-les-Bains in september: average Weather, Temperature and Climate
Weather in Thonon-les-Bains in september 2025
The weather in Thonon-les-Bains in september comes from statistical datas on the past years. You can view the weather statistics the entire month, but also navigating through the tabs for the beginning, the middle and the end of the month.
Average weather throughout september
good weather
Weather at 6am
56°F
Clear/Sunny
45% of time
22%
18%
11%
Weather at 12pm
68°F
Clear/Sunny
52% of time
23%
21%
5%
Weather at 6pm
59°F
Clear/Sunny
36% of time
31%
17%
11%
Weather at 3am
54°F
41%
19%
18%
16%
Evolution of daily average temperature and precipitation in Thonon-les-Bains in september
These charts show the evolution of average minimum/maximum temperatures as well as average daily precipitation volume in Thonon-les-Bains in september.
The climate of Thonon-les-Bains in september is good
In september in Thonon-les-Bains, the climate is wet (with 4.2in of rainfall over 6 days). This is better than the previous month since in august it receives an average of 5.7in of rainfall over 9 days.
The climate quite pleasant in this location this month. Temperatures are up to 70°F. The seasonal minimum is 56°F. Thus, the mean temperature average on this month of september in Thonon-les-Bains is 63°F. Note that seasonal normals are in contrast with those observed in Thonon-les-Bains in the month of september with a maximum record of 86°F in 2018 and a minimum record of 36°F in 2020. You can expect to have about 22 days with temperatures above 65°F, or 73% of the month.
On this month of september, day length in Thonon-les-Bains is generally 12:33. The sun rises at 06:12 and sunset is at 18:45.
With a good weather, september is a good month to go in Thonon-les-Bains.
Seasonal average climate and temperature of Thonon-les-Bains in september
Check below seasonal norms These datas are set from the weather statements of the past years of the month of september.
| September | |||||
| Outside temperature | |||||
| Average temperature | 63°F | ||||
| Highest temperature | 70°F | ||||
| Lowest temperature | 56°F | ||||
| Highest record temperature | 86°F (2018) | ||||
| Lowest record temperature | 36°F (2020) | ||||
| Number of days at +86°F | 0 day(s) (0%) | ||||
| Number of days at +65°F | 22 day(s) (73%) | ||||
| Number of days at -32°F | 0 day(s) (0%) | ||||
| Wind | |||||
| Wind speed | 11km/h | ||||
| Wind temperature | 54°F | ||||
| Precipitation (rainfall) | |||||
| Rainfall | 4.2in | ||||
| Number of days with rainfall | 6 day(s) (19%) | ||||
| Record daily rainfall | 2.2in (2012) | ||||
| Snowfall | 0cm | ||||
| Other climate data | |||||
| Humidity | 86% | ||||
| Visibility | 8.82km | ||||
| Cloud cover | 30% | ||||
| UV index | 5 | ||||
| Daily sunshine hours | 12 | ||||
| Sunrise and sunset | |||||
| Time of sunrise | 06:12 | ||||
| Time of sunset | 18:45 | ||||
| Length of day | 12:33 | ||||
| Our opinion about the weather in september | |||||
| Our opinion at whereandwhen.net | good | ||||
How was the weather last september?
Here is the day by day recorded weather in Thonon-les-Bains in september 2024:
67°F to 83°F
61°F to 76°F
65°F to 74°F
58°F to 68°F
58°F to 65°F
50°F to 70°F
56°F to 76°F
58°F to 68°F
52°F to 56°F
54°F to 68°F
52°F to 65°F
49°F to 58°F
45°F to 54°F
45°F to 59°F
45°F to 61°F
49°F to 63°F
50°F to 59°F
47°F to 65°F
49°F to 63°F
49°F to 65°F
54°F to 68°F
56°F to 67°F
56°F to 58°F
50°F to 63°F
50°F to 67°F
58°F to 61°F
56°F to 58°F
45°F to 49°F
45°F to 58°F
54°F to 68°F
Map: other cities in the French Alps in september
Cities near Thonon-les-Bains:
| Yvoire in september | good weather |
| Annemasse in september | good weather |
| Avoriaz in september | tolerable weather |
| Bonneville in september | tolerable weather |
| Cluses in september | tolerable weather |
| La Roche-sur-Foron in september | tolerable weather |
| Saint-Julien-en-Genevois in september | good weather |
| Sallanches in september | tolerable weather |
| La Clusaz in september | tolerable weather |
| Passy in september | very bad weather |
| Saint-Gervais-les-Bains in september | very bad weather |
| Chamonix in september | very bad weather |
Click over cities on the map for information about the weather in september.
Thonon-les-Bains
perfect weather
good
tolerable
bad
very bad
Weather data for Thonon-les-Bains in september:
Weather data for Thonon-les-Bains for september are derived from an average of the weather forecast since 2009 in Thonon-les-Bains. There is a margin of error and these forecasts are to be considered as general information only. The weather in Thonon-les-Bains can vary slightly from year to year, but this data should limit surprises. So you can pack your bags or check for the best time in year to go to Thonon-les-Bains.