Click on a day for an hourly weather forecast
The temperatures in Sao Paulo in September are comfortable with low of 16°C and and high up to 26°C.
You can expect about 3 to 8 days of rain in Sao Paulo during the month of September. It’s a good idea to bring along your umbrella so that you don’t get caught in poor weather.
Our weather forecast can give you a great sense of what weather to expect in Sao Paulo in September 2025.
If you’re planning to visit Sao Paulo in the near future, we highly recommend that you review the 14 day weather forecast for Sao Paulo before you arrive.
| Month | Temperatures | Rainy Days | Dry Days | Snowy Days | Rainfall | Weather | More details |
|---|---|---|---|---|---|---|---|
| January | 27° / 20° | 19 | 12 | 0 | 461 mm | Good | Sao Paulo in January |
| February | 27° / 19° | 16 | 12 | 0 | 344 mm | Good | Sao Paulo in February |
| March | 26° / 19° | 12 | 19 | 0 | 232 mm | Good | Sao Paulo in March |
| April | 24° / 17° | 6 | 24 | 0 | 119 mm | Perfect | Sao Paulo in April |
| May | 22° / 15° | 4 | 28 | 0 | 75 mm | Good | Sao Paulo in May |
| June | 22° / 14° | 3 | 27 | 0 | 71 mm | Good | Sao Paulo in June |
| July | 22° / 14° | 4 | 27 | 0 | 87 mm | Good | Sao Paulo in July |
| August | 24° / 14° | 3 | 28 | 0 | 61 mm | Perfect | Sao Paulo in August |
| September | 26° / 16° | 5 | 25 | 0 | 99 mm | Perfect | Sao Paulo in September |
| October | 26° / 17° | 9 | 22 | 0 | 164 mm | Good | Sao Paulo in October |
| November | 25° / 17° | 11 | 19 | 0 | 251 mm | Good | Sao Paulo in November |
| December | 27° / 19° | 15 | 16 | 0 | 349 mm | Good | Sao Paulo in December |