Click on a day for an hourly weather forecast
The weather in Oaxaca in September is very hot. The average temperatures are between 24°C and 29°C, drinking water regularly is advisable.
With more than 22 rainy days, Oaxaca is an incredibly wet during September. Be sure to pack your umbrella and bring along your rubber boots to stay dry. It’s going to be raining cats and dogs this month!
Our weather forecast can give you a great sense of what weather to expect in Oaxaca in September 2025.
If you’re planning to visit Oaxaca in the near future, we highly recommend that you review the 14 day weather forecast for Oaxaca before you arrive.
| Month | Temperatures | Rainy Days | Dry Days | Snowy Days | Rainfall | Weather | More details |
|---|---|---|---|---|---|---|---|
| January | 29° / 21° | 0 | 31 | 0 | 11 mm | Good | Oaxaca in January |
| February | 30° / 21° | 1 | 28 | 0 | 13 mm | Good | Oaxaca in February |
| March | 30° / 22° | 2 | 29 | 0 | 34 mm | Good | Oaxaca in March |
| April | 31° / 23° | 4 | 26 | 0 | 61 mm | Good | Oaxaca in April |
| May | 31° / 24° | 15 | 16 | 0 | 287 mm | Ok | Oaxaca in May |
| June | 29° / 23° | 21 | 9 | 0 | 576 mm | Ok | Oaxaca in June |
| July | 30° / 23° | 23 | 8 | 0 | 420 mm | Ok | Oaxaca in July |
| August | 30° / 24° | 25 | 6 | 0 | 552 mm | Ok | Oaxaca in August |
| September | 29° / 24° | 24 | 6 | 0 | 625 mm | Ok | Oaxaca in September |
| October | 29° / 23° | 18 | 13 | 0 | 341 mm | Ok | Oaxaca in October |
| November | 30° / 23° | 4 | 26 | 0 | 75 mm | Good | Oaxaca in November |
| December | 29° / 22° | 1 | 30 | 0 | 15 mm | Good | Oaxaca in December |