Click on a day for an hourly weather forecast
The weather in Santa Ana in September is very hot. The average temperatures are between 24°C and 31°C, drinking water regularly is advisable.
There’s going to be many days of rain during the month of September in Santa Ana.
Santa Ana should expect an average of 15 to 22 days of rain, so be sure to bring along a waterproof jacket to stay dry this month!
Our weather forecast can give you a great sense of what weather to expect in Santa Ana in September 2025.
If you’re planning to visit Santa Ana in the near future, we highly recommend that you review the 14 day weather forecast for Santa Ana before you arrive.
| Month | Temperatures | Rainy Days | Dry Days | Snowy Days | Rainfall | Weather | More details |
|---|---|---|---|---|---|---|---|
| January | 33° / 23° | 0 | 31 | 0 | 6 mm | Good | Santa Ana in January |
| February | 33° / 23° | 1 | 28 | 0 | 12 mm | Good | Santa Ana in February |
| March | 33° / 24° | 1 | 30 | 0 | 16 mm | Good | Santa Ana in March |
| April | 32° / 25° | 5 | 25 | 0 | 97 mm | Good | Santa Ana in April |
| May | 32° / 25° | 13 | 18 | 0 | 337 mm | Ok | Santa Ana in May |
| June | 31° / 24° | 14 | 16 | 0 | 377 mm | Ok | Santa Ana in June |
| July | 32° / 24° | 12 | 19 | 0 | 233 mm | Ok | Santa Ana in July |
| August | 32° / 24° | 15 | 16 | 0 | 357 mm | Ok | Santa Ana in August |
| September | 31° / 24° | 17 | 13 | 0 | 383 mm | Ok | Santa Ana in September |
| October | 31° / 24° | 14 | 17 | 0 | 385 mm | Ok | Santa Ana in October |
| November | 32° / 23° | 4 | 26 | 0 | 82 mm | Good | Santa Ana in November |
| December | 33° / 22° | 0 | 31 | 0 | 14 mm | Good | Santa Ana in December |