The temperatures in Porto Alegre in October are comfortable with low of 15°C and and high up to 25°C.
You can expect rain for roughly half of the month of October in Porto Alegre. We’re expecting roughly 8 to 15 days of rain, so your rubber boots and umbrella are going to see plenty of use this month if you’re keen on staying dry.
Our weather forecast can give you a great sense of what weather to expect in Porto Alegre in October 2025.
If you’re planning to visit Porto Alegre in the near future, we highly recommend that you review the 14 day weather forecast for Porto Alegre before you arrive.
Temperatures
25° / 15°
Rainy Days
8
Snowy Days
0
Dry Days
23
Rainfall
194
mm
Sun Hours
9.4
Hrs
