Click on a day for an hourly weather forecast
The temperatures in Santa Barbara in September are comfortable with low of 14°C and and high up to 28°C.
There is little to no rain in Santa Barbara during September, so it’s a lot easier to explore the city. Just remember to dress in warm layers, as it can still get pretty chilly.
Our weather forecast can give you a great sense of what weather to expect in Santa Barbara in September 2025.
If you’re planning to visit Santa Barbara in the near future, we highly recommend that you review the 14 day weather forecast for Santa Barbara before you arrive.
| Month | Temperatures | Rainy Days | Dry Days | Snowy Days | Rainfall | Weather | More details |
|---|---|---|---|---|---|---|---|
| January | 18° / 5° | 3 | 28 | 0 | 75 mm | Good | Santa Barbara in January |
| February | 18° / 4° | 3 | 25 | 0 | 66 mm | Good | Santa Barbara in February |
| March | 19° / 5° | 2 | 29 | 0 | 60 mm | Good | Santa Barbara in March |
| April | 21° / 7° | 1 | 29 | 0 | 23 mm | Good | Santa Barbara in April |
| May | 23° / 9° | 1 | 30 | 0 | 11 mm | Perfect | Santa Barbara in May |
| June | 26° / 12° | 0 | 30 | 0 | 5 mm | Perfect | Santa Barbara in June |
| July | 28° / 15° | 0 | 31 | 0 | 14 mm | Perfect | Santa Barbara in July |
| August | 29° / 15° | 0 | 31 | 0 | 7 mm | Good | Santa Barbara in August |
| September | 28° / 14° | 0 | 30 | 0 | 9 mm | Perfect | Santa Barbara in September |
| October | 25° / 11° | 1 | 30 | 0 | 17 mm | Perfect | Santa Barbara in October |
| November | 21° / 8° | 1 | 29 | 0 | 20 mm | Good | Santa Barbara in November |
| December | 18° / 5° | 3 | 28 | 0 | 66 mm | Good | Santa Barbara in December |