Porto Alegre Weather & Climate: Best Time to Visit
Porto Alegre, Rio Grande do Sul, Brazil, has a moderate seasonal temperature range, with January reaching 31°C (88°F) and July cooling to 20°C (68°F).
Rainfall is high, totalling around 1590 mm (63 in) per year. October is the wettest month and May the driest. The sunniest month is December, with 7.8 hours of sunshine per day on average.
Monthly Temperature in Porto Alegre
The climate in Porto Alegre experiences moderate temperature changes, with mild shifts between seasons. Average maximum daytime temperatures range from a very warm 31°C (88°F) in January, the warmest time of the year, to a pleasant 20°C (68°F) during cooler months like July.
At night, you can expect temperatures ranging from 21°C (70°F) in January to around 10°C (50°F) during July.Check out our detailed temperature page for more information.
Temperature ranges by month
Rainfall in Porto Alegre
Porto Alegre is known for its substantial rainfall, with annual precipitation reaching 1590 mm (63 in). Year-round, Porto Alegre has a balanced climate with minimal variation in precipitation. The difference between the wettest month, October, with 172 mm (6.8 in), and the driest month, May, with 110 mm (4.3 in), is minimal. For more details, please visit our Porto Alegre Precipitation page.
The mean monthly precipitation over the year, including rain, hail, and snow
The average number of days each month with precipitation
Sunshine Hours in Porto Alegre
Seasonal changes in sunshine hours are quite dramatic in Porto Alegre. While December receives considerable daily sunshine with up to 7.8 hours, June marks the darkest time of the year, where sunshine is scarce with only 3.9 hours of sunlight per day.
Visit our detailed sunshine hours page for more information.
Monthly hours of sunshine
Daily hours of sunshine
Humidity in Porto Alegre by Month
The relative humidity is high throughout the year in Porto Alegre.
The city experiences its highest humidity in June, reaching 82%. In December, the humidity drops to its lowest level at 69%. What does this mean? Read our detailed page on humidity levels for further details.
Relative humidity over the year
Wind Speed in Porto Alegre
The mean wind speed over the year ranges from () in April, May, June and July to 1 m/s (2 knots) in January, February, March, August, September, October, November and December. What does this mean?
The mean monthly wind speed over the year (meters per second)
Porto Alegre 3-Day Forecast
Check the conditions for any month of the year.
Best Time to Visit Porto Alegre
During March, April, May, June, July, August and November, Porto Alegre experiences its most favorable weather, with temperatures between 20°C (68°F) and 30°C (85°F). These mild conditions make it an excellent time for a visit.The weather does bring rainfall during this period, between 110 mm (4.3 in) and 141 mm (5.6 in).
Plan accordingly for October, when conditions bring the heaviest precipitation. Looking for inspiration on where to travel this year? We have a tool that recommends destinations based on your ideal conditions. Find out where to go with our weather planner.
