Porto Alegre, Rio Grande do Sul, Brazil Climate Change Severity
High
Porto Alegre Weather Condition Changes (Historic Vs 2025)
Over the past 15 year(s), Porto Alegre temperature has changed by around +2.7%, and has experienced notable climate changes.
Comparison of Weather Condition (Historic Vs 2025)
HistoricDays
Year 2025Days
Change
Sunny
Cloudy
Rainy
Snowy
MistyDisclaimer: Other weather conditions not shown may affect the total day count.
Climate Change Indicators:
Over the past 15 years, Porto Alegre has experienced measurable shifts in key climate parameters, contributing to the current severity score of 48 (within the High severity category). This suggests worsening climate conditions from the previous years. Here’s a breakdown of the specific changes observed:
Severity Score
48/100
High
From 2010 to 2025, Porto Alegre experienced significant changes:
Temperature change of
+0.5 °C
Variation in annual rainfall
-8.7 %
Change in average humidity
-5.9 %
PM2.5 levels surged by
+73.5 %
Heatwave changed by
+5.3 day(s)
Coldwave changed by
-2.06 day(s)
Wind speeds changed by
-0.7 km/h
These indicators show that Porto Alegre is experiencing a more volatile and extreme climate, reinforcing the need for urgent intervention to mitigate risks. As the severity score rises, focus must shift to adaptation and emergency preparedness.
Porto Alegre Weather Forecast 30 Days (July - August 2025)Porto Alegre, Rio Grande do Sul, Brazil
Temperature
humi.
Wind SpeedSunny16°/8°74%11km/hSunny21°/9°71%9km/hSunny23°/12°70%9km/hPatchy rain nearby21°/16°83%8km/hPatchy rain nearby21°/14°92%18km/h
Moderate rain12°/10°90%17km/hPatchy rain nearby16°/11°86%13km/hCloudy 18°/12°77%21km/h
Partly Cloudy 20°/12°78%19km/hPatchy rain nearby16°/14°92%9km/hPatchy rain nearby18°/14°85%12km/hPartly Cloudy 16°/11°84%9km/h
Overcast 18°/13°88%6km/hPartly Cloudy 23°/14°85%8km/h
Moderate or heavy rain shower19°/11°79%17km/hModerate or heavy rain shower20°/10°77%14km/hModerate or heavy rain shower22°/12°79%14km/h
Heavy rain at times23°/13°77%16km/hModerate or heavy rain shower24°/13°77%14km/hModerate or heavy rain shower23°/12°79%16km/hModerate or heavy rain shower22°/12°76%18km/hModerate or heavy rain shower19°/11°77%19km/h
Moderate rain at times20°/10°75%15km/hModerate or heavy rain shower23°/11°74%17km/hModerate or heavy rain shower22°/12°75%15km/hModerate or heavy rain shower23°/13°77%18km/hModerate or heavy rain shower22°/13°78%18km/hModerate or heavy rain shower21°/12°76%16km/hModerate or heavy rain shower22°/12°75%18km/hModerate or heavy rain shower23°/12°76%15km/hModerate or heavy rain shower24°/13°76%16km/hHighest & Lowest Weather Forecasts
TemperatureHumidityWind Speed
Precipitation
UV
