Click on a day for an hourly weather forecast
The temperatures in San Pedro in September are quite cold with temperatures between 8°C and 20°C, warm clothes are a must.
The wather in San Pedro in September can vary between cold and nice weather days. Expect a few rainy days but usually not more than 3.
Our weather forecast can give you a great sense of what weather to expect in San Pedro in September 2026.
If you’re planning to visit San Pedro in the near future, we highly recommend that you review the 14 day weather forecast for San Pedro before you arrive.
| Month | Temperatures | Rainy Days | Dry Days | Snowy Days | Rainfall | Weather | More details |
|---|---|---|---|---|---|---|---|
| January | 28° / 14° | 0 | 31 | 0 | 3 mm | Perfect | San Pedro in January |
| February | 27° / 14° | 0 | 28 | 0 | 2 mm | Perfect | San Pedro in February |
| March | 26° / 12° | 0 | 31 | 0 | 2 mm | Perfect | San Pedro in March |
| April | 24° / 10° | 0 | 30 | 0 | 7 mm | Perfect | San Pedro in April |
| May | 21° / 8° | 2 | 29 | 0 | 69 mm | Good | San Pedro in May |
| June | 18° / 6° | 4 | 26 | 0 | 136 mm | Good | San Pedro in June |
| July | 17° / 5° | 2 | 29 | 0 | 76 mm | Good | San Pedro in July |
| August | 19° / 7° | 3 | 28 | 0 | 86 mm | Good | San Pedro in August |
| September | 20° / 8° | 1 | 29 | 0 | 36 mm | Good | San Pedro in September |
| October | 22° / 10° | 1 | 30 | 0 | 32 mm | Good | San Pedro in October |
| November | 25° / 12° | 0 | 30 | 0 | 7 mm | Perfect | San Pedro in November |
| December | 26° / 13° | 0 | 31 | 0 | 9 mm | Perfect | San Pedro in December |