Average temperature within Porto Alegre all through the month of September is 30. Average high degrees are usually 39 and typical average low being around 22 degrees celsius. We have put some more detail below here:
| Month | Degrees Celsius |
|---|---|
| Temperature | 30 |
| High Temperature | 39 |
| Low Temperature | 22 |
Useful Links: Porto Alegre Weather: Average Weather & Yearly Climate