Click on a day for an hourly weather forecast
The temperatures in Pismo Beach in September are comfortable with low of 16°C and and high up to 27°C.
As it is almost never rain during September in Pismo Beach the weather is perfect for hanging out outside and exploring all that Pismo Beach has to offer.
Our weather forecast can give you a great sense of what weather to expect in Pismo Beach in September 2025.
If you’re planning to visit Pismo Beach in the near future, we highly recommend that you review the 14 day weather forecast for Pismo Beach before you arrive.
| Month | Temperatures | Rainy Days | Dry Days | Snowy Days | Rainfall | Weather | More details |
|---|---|---|---|---|---|---|---|
| January | 18° / 8° | 3 | 28 | 0 | 68 mm | Good | Pismo Beach in January |
| February | 18° / 7° | 3 | 25 | 0 | 56 mm | Good | Pismo Beach in February |
| March | 19° / 8° | 3 | 28 | 0 | 62 mm | Good | Pismo Beach in March |
| April | 20° / 9° | 2 | 28 | 0 | 17 mm | Good | Pismo Beach in April |
| May | 22° / 11° | 0 | 31 | 0 | 6 mm | Good | Pismo Beach in May |
| June | 25° / 13° | 0 | 30 | 0 | 2 mm | Perfect | Pismo Beach in June |
| July | 26° / 15° | 0 | 31 | 0 | 7 mm | Perfect | Pismo Beach in July |
| August | 27° / 15° | 0 | 31 | 0 | 1 mm | Perfect | Pismo Beach in August |
| September | 27° / 16° | 0 | 30 | 0 | 6 mm | Perfect | Pismo Beach in September |
| October | 24° / 14° | 1 | 30 | 0 | 16 mm | Perfect | Pismo Beach in October |
| November | 21° / 10° | 1 | 29 | 0 | 24 mm | Good | Pismo Beach in November |
| December | 17° / 8° | 3 | 28 | 0 | 48 mm | Good | Pismo Beach in December |