Click on a day for an hourly weather forecast
The temperatures in La Sarraz in September are usually low and can range between 10°C and 19°C.
You can expect about 3 to 8 days of rain in La Sarraz during the month of September. It’s a good idea to bring along your umbrella so that you don’t get caught in poor weather.
Our weather forecast can give you a great sense of what weather to expect in La Sarraz in September 2026.
If you’re planning to visit La Sarraz in the near future, we highly recommend that you review the 14 day weather forecast for La Sarraz before you arrive.
| Month | Temperatures | Rainy Days | Dry Days | Snowy Days | Rainfall | Weather | More details |
|---|---|---|---|---|---|---|---|
| January | 4° / -2° | 10 | 10 | 12 | 156 mm | Awful | La Sarraz in January |
| February | 5° / -2° | 9 | 10 | 11 | 128 mm | Awful | La Sarraz in February |
| March | 9° / 1° | 7 | 17 | 7 | 122 mm | Awful | La Sarraz in March |
| April | 13° / 5° | 7 | 21 | 2 | 108 mm | Awful | La Sarraz in April |
| May | 16° / 7° | 10 | 21 | 0 | 174 mm | Ok | La Sarraz in May |
| June | 21° / 12° | 9 | 21 | 0 | 171 mm | Ok | La Sarraz in June |
| July | 23° / 13° | 9 | 22 | 0 | 153 mm | Good | La Sarraz in July |
| August | 23° / 13° | 8 | 23 | 0 | 149 mm | Good | La Sarraz in August |
| September | 19° / 10° | 5 | 25 | 0 | 99 mm | Good | La Sarraz in September |
| October | 15° / 6° | 5 | 25 | 1 | 118 mm | Good | La Sarraz in October |
| November | 9° / 3° | 8 | 18 | 5 | 146 mm | Awful | La Sarraz in November |
| December | 5° / 0° | 10 | 11 | 10 | 203 mm | Awful | La Sarraz in December |