Porto Alegre Weather and Climate: A Comprehensive Guide
Temperatures see a moderate degree of fluctuation,
transitioning from very warm conditions
to pleasant.
It also has a notably wet climate with much precipitation.
Now, let’s break down all the climate details for a clearer picture.
Average maximum day and minimum night temperature
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 in January, the warmest time of the year, to a pleasant 20°C during cooler months like July.
At night, temperatures typically drop to an average of around 10°C during these months. Check out our detailed temperature page for more information.Temperature ranges by month
Precipitation and rainy days
Porto Alegre is known for its substantial rainfall, with annual precipitation reaching 1590 mm. Year-round, Porto Alegre has a balanced climate with minimal variation in precipitation. The difference between the wettest month, October, with 172 mm, and the driest month, May, with 110 mm, is minimal.The mean monthly precipitation over the year, including rain, hail and snow
The average number of days each month with precipitation
Sunshine over the year
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
Average humidity
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%. Explore our detailed page on humidity levels for further details.
Relative humidity over the year
Average wind speed
The mean wind speed over the year ranges from 0 m/s in April, May, June and July to 1 m/s in January, February, March, August, September, October, November and December.
The mean monthly wind speed over the year (meters per second)
broken clouds and no rain partly cloudy and thunder clear and no rainForecast for Porto Alegre
7 m/s
6 m/s
8 m/s
The best time of year to visit Porto Alegre in Brazil
During the months of May, June, July, August, September and October you are most likely to experience good weather with pleasant average temperatures that fall between 20°C and 26°C.Other facts from our historical weather data:
Most rainfall (rainy season) is seen in September and October.
January has an average maximum temperature of 31°C and is the warmest month of the year.
The coldest month is July with an average maximum temperature of 20°C.
October tops the wettest month list with 172 mm of rainfall.
May is the driest month with 110 mm of precipitation.
December is the sunniest month with an average of 233 hours of sunshine.
No idea where to travel to this year? We have a tool that recommends destinations based on your ideal conditions. Find out where to go with our weather planner.
