The weather in Porto Alegre in December is hot. The average temperatures are between 19°C and 30°C. Usually the days in December are hot while the nights are a bit cooler.
You can expect about 3 to 8 days of rain in Porto Alegre during the month of December. 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 Porto Alegre in December 2024.
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.