Click on a day for an hourly weather forecast
The weather in Sonora in September is very hot. The average temperatures are between 26°C and 36°C, drinking water regularly is advisable.
You can expect about 3 to 8 days of rain in Sonora 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 Sonora in September 2026.
If you’re planning to visit Sonora in the near future, we highly recommend that you review the 14 day weather forecast for Sonora before you arrive.
| Month | Temperatures | Rainy Days | Dry Days | Snowy Days | Rainfall | Weather | More details |
|---|---|---|---|---|---|---|---|
| January | 24° / 12° | 1 | 30 | 0 | 17 mm | Perfect | Sonora in January |
| February | 25° / 13° | 0 | 28 | 0 | 12 mm | Perfect | Sonora in February |
| March | 29° / 15° | 0 | 31 | 0 | 8 mm | Good | Sonora in March |
| April | 32° / 18° | 0 | 30 | 0 | 2 mm | Good | Sonora in April |
| May | 35° / 20° | 0 | 31 | 0 | 1 mm | Ok | Sonora in May |
| June | 39° / 26° | 0 | 30 | 0 | 15 mm | Bad | Sonora in June |
| July | 37° / 29° | 6 | 25 | 0 | 154 mm | Ok | Sonora in July |
| August | 37° / 28° | 8 | 23 | 0 | 155 mm | Bad | Sonora in August |
| September | 36° / 26° | 5 | 25 | 0 | 113 mm | Ok | Sonora in September |
| October | 33° / 22° | 1 | 30 | 0 | 28 mm | Good | Sonora in October |
| November | 28° / 17° | 1 | 29 | 0 | 20 mm | Perfect | Sonora in November |
| December | 23° / 13° | 1 | 30 | 0 | 16 mm | Perfect | Sonora in December |