Click on a day for an hourly weather forecast
The weather in Sinaloa in September is hot. The average temperatures are between 22°C and 30°C.
You can expect rain for roughly half of the month of September in Sinaloa. We’re expecting roughly 8 to 15 days of rain, so your rubber boots and umbrella are going to see plenty of use this month if you’re keen on staying dry.
Our weather forecast can give you a great sense of what weather to expect in Sinaloa in September 2025.
If you’re planning to visit Sinaloa in the near future, we highly recommend that you review the 14 day weather forecast for Sinaloa before you arrive.
| Month | Temperatures | Rainy Days | Dry Days | Snowy Days | Rainfall | Weather | More details |
|---|---|---|---|---|---|---|---|
| January | 16° / 8° | 2 | 29 | 0 | 28 mm | Good | Sinaloa in January |
| February | 20° / 11° | 2 | 26 | 0 | 34 mm | Good | Sinaloa in February |
| March | 24° / 15° | 5 | 26 | 0 | 77 mm | Perfect | Sinaloa in March |
| April | 30° / 19° | 6 | 24 | 0 | 92 mm | Good | Sinaloa in April |
| May | 33° / 22° | 11 | 20 | 0 | 221 mm | Ok | Sinaloa in May |
| June | 33° / 23° | 8 | 22 | 0 | 183 mm | Ok | Sinaloa in June |
| July | 33° / 23° | 7 | 24 | 0 | 194 mm | Ok | Sinaloa in July |
| August | 34° / 24° | 7 | 24 | 0 | 148 mm | Bad | Sinaloa in August |
| September | 30° / 22° | 10 | 20 | 0 | 251 mm | Ok | Sinaloa in September |
| October | 25° / 17° | 4 | 27 | 0 | 87 mm | Perfect | Sinaloa in October |
| November | 19° / 11° | 2 | 28 | 0 | 54 mm | Good | Sinaloa in November |
| December | 17° / 9° | 1 | 30 | 0 | 35 mm | Good | Sinaloa in December |