Click on a day for an hourly weather forecast
The weather in Buena Park in September is hot. The average temperatures are between 20°C and 27°C.
As it is almost never rain during September in Buena Park the weather is perfect for hanging out outside and exploring all that Buena Park has to offer.
Our weather forecast can give you a great sense of what weather to expect in Buena Park in September 2025.
If you’re planning to visit Buena Park in the near future, we highly recommend that you review the 14 day weather forecast for Buena Park before you arrive.
| Month | Temperatures | Rainy Days | Dry Days | Snowy Days | Rainfall | Weather | More details |
|---|---|---|---|---|---|---|---|
| January | 20° / 12° | 2 | 29 | 0 | 26 mm | Good | Buena Park in January |
| February | 19° / 12° | 2 | 27 | 0 | 24 mm | Good | Buena Park in February |
| March | 20° / 13° | 1 | 30 | 0 | 15 mm | Good | Buena Park in March |
| April | 21° / 14° | 0 | 30 | 0 | 7 mm | Good | Buena Park in April |
| May | 21° / 15° | 0 | 31 | 0 | 4 mm | Good | Buena Park in May |
| June | 23° / 17° | 0 | 30 | 0 | 2 mm | Perfect | Buena Park in June |
| July | 26° / 19° | 0 | 31 | 0 | 8 mm | Perfect | Buena Park in July |
| August | 27° / 20° | 0 | 31 | 0 | 6 mm | Perfect | Buena Park in August |
| September | 27° / 20° | 0 | 30 | 0 | 6 mm | Perfect | Buena Park in September |
| October | 25° / 18° | 1 | 30 | 0 | 9 mm | Perfect | Buena Park in October |
| November | 22° / 15° | 1 | 29 | 0 | 11 mm | Good | Buena Park in November |
| December | 19° / 12° | 2 | 29 | 0 | 28 mm | Good | Buena Park in December |