Temperature
Pleasant by day, brisk at night.
70°Ftypical Aug high
Porto Alegre
Brazil · South America
Porto Alegre is most comfortable in local spring, local autumn, and local winter. Local summers are warm and local winters are mild. Rain is frequent in most months.
Best time to go
12 mo · Typical year
Temperature range
50°F to 85°F
Rain
11 days/mo
Sunshine
9 h/day
Humidity feel
Sometimes humid
When to visit
Month-by-month fit
Precipitation
Rainfall is lower than usual here.
32%wet-day frequency
AmountWet-day chance
Sunshine
Some sun, but clouds are common.
8 hAug sunshine
Heat & humidity by month
It rarely feels hot, though humidity can be noticeable during rainy periods.
LowAug heat feel
Easy airWarm airHot airHumid airVery humid air
Hourly comfort pattern
In August, afternoons feel about 64° and nights feel near 53°.
ColdCoolComfortableWarmHotNight shading
More detailIncludes sky, daypart comfort, and wind
Cloud cover
Partly cloudy across the month.
44%Aug clear sky
ClearCloud cover
Typical August day
August late afternoons are around 68°F, and early evening stays near 67°F.
Avg temp Typical range
Morning55°F
Rain15%
Cloud65%
Humid airLow
Sun intensityMinimal
Midday59°F
Rain15%
Cloud59%
Humid airLow
Sun intensityLow
Best windowLate afternoon68°F
Rain16%
Cloud57%
Humid airLow
Sun intensityModerate
evening67°F
Rain15%
Cloud54%
Humid airLow
Sun intensityLow
Wind pattern
Calm winds are typical in August.
6 mphAug Light breeze
Typical wind speed (mph)
Similar
Similar things to doRio de JaneiroBrazilSimilar things to doBuenos AiresArgentinaSimilar things to doOuro PretoBrazilSimilar things to doSao PauloBrazil
Want a side-by-side climate view? Compare Porto Alegre with Rio de Janeiro.
Climate data notePlanning guidance, not a forecast
Typical monthly values are based on long-term climate records. Useful for planning, not a forecast. Check the weather before you travel.
Local microclimates can vary by beach, neighborhood, trail, or elevation.
Last updated: Jul 27, 2026
Data & methodology