Barometric Pressure in Porto Alegre, Brazil 
0000 hPa
00.0 ℃
00.0%
00.0 m/s
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The pressure in Porto Alegre, Rio Grande do Sul, Brazil is predicted rising over the next 24 hours, with an average pressure of today, which is considered normal.
Weather prediction: Fairly fine, improving
Rapid Pressure Changes
Rapid pressure changes detected in Porto Alegre - often a sign of approaching weather shifts. Get accurate local time and alerts on our iOS app.
- Rapid Rise - ()
The daily total fluctuation in pressure in Porto Alegre is , with a low of and a high of .
Forecast
Hourly Pressure Trends
Track the barometric pressure in Porto Alegre hour by hour and stay informed about how it will change over the next 6 hours.
Porto Alegre has a humid subtropical climate. Rain can fall in every season, and weather can change quickly. Low pressure often brings clouds, rain, and thunderstorms. High pressure usually brings clearer, drier, and calmer weather. Cold fronts from the south can cause sudden drops in temperature.
The city lies in southern Brazil, near the Guaíba Lake and several rivers. This water helps add moisture to the air and can soften temperature changes. The nearby Atlantic Ocean also affects the weather. Hills and higher land north of the city can help guide winds and influence clouds.
Summer is hot, humid, and often stormy. Temperatures can rise above 30 degrees Celsius. Winter is cooler, with many mild days and some cold nights. Cold fronts can bring strong winds and temperatures near or below 10 degrees Celsius. Spring and fall have changing temperatures and regular rain.