Temperature
Pleasant by day, brisk at night.
70°Ftypical August high
Typical range
August climate
August in Porto Alegre
Brazil · South America
Mild days with cool nights and plenty of sun.
One of the best months here
Daytime high
70°F
Lows around 52°F
Rain
Several rainy days
Sun
8 h/day
Air feel
Comfortable
When to visit
Month-by-month fit
Best
Precipitation
Several rainy days. About 10 wet days, fewer than in most months.
33%wet-day frequency
AmountWet-day chance
Sunshine
A mix of sunshine and cloud.
8 hAugust sunshine
Heat & humidity by month
ComfortableAugust
Easy airWarm airHot airHumid airVery humid air
Hourly temperature pattern
In August, afternoons feel about 66° and nights feel near 52°.
ColdCoolComfortableWarmHotNight hours
Clear sky
Partly cloudy skies this month.
44%August Clear sky
Clear skyCloud
Wind pattern
Calm winds are typical in August.
6 mphAugust Light breeze
More detailIncludes daypart comfort
Typical August day
August late afternoons are around 68°F, easing to about 61°F in early evening.
Avg temp Typical range
Morning58°F
Rain16%
Cloud60%
Humid airLow
Sun intensityLow
Best windowMidday68°F
Rain16%
Cloud57%
Humid airLow
Sun intensityModerate
Late afternoon68°F
Rain16%
Cloud55%
Humid airLow
Sun intensityLow
Early evening61°F
Rain16%
Cloud51%
Humid airLow
Sun intensityMinimal
Data tableView month-by-month numbers
View month-by-month numbers
| Month | High°F | Low°F | Rainin | Wet days | Sunh | Humidity% |
|---|---|---|---|---|---|---|
| Jan | 85 | 69 | 5.4 | 14 | 11.0 | 75 |
| Feb | 85 | 69 | 5.0 | 14 | 10.7 | 77 |
| Mar | 83 | 67 | 4.4 | 12 | 9.8 | 78 |
| Apr | 78 | 62 | 4.1 | 10 | 8.6 | 80 |
| May | 71 | 56 | 4.2 | 9 | 7.7 | 83 |
| Jun | 67 | 52 | 4.5 | 10 | 6.7 | 84 |
| Jul | 66 | 50 | 5.5 | 10 | 6.9 | 83 |
| Aug | 70 | 52 | 4.7 | 10 | 8.0 | 81 |
| Sep | 71 | 55 | 5.8 | 11 | 7.9 | 80 |
| Oct | 76 | 60 | 6.6 | 12 | 8.6 | 78 |
| Nov | 80 | 63 | 4.9 | 11 | 10.4 | 75 |
| Dec | 84 | 67 | 4.9 | 12 | 11.1 | 74 |
Similar climates
Similar
Similar travel styleRio de JaneiroBrazilSimilar travel styleBuenos AiresArgentinaSimilar travel styleArtigasUruguaySimilar travel styleAsunciónParaguay
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.
Sunshine: source type is not yet identified at metric level.
Local microclimates can vary by beach, neighborhood, trail, or elevation.
Last updated: Aug 26, 2026
Data & methodology