Porto Alegre weather live forecast

Today's maximum temperature in Porto Alegre is expected to be 27°C. Select a day from the live weather forecast for Porto Alegre, Brazil for more weather parameters.

5-day weather forecast updated at 04:00 on Wednesday 22nd October 2025 GMT

More about Porto Alegre

Porto Alegre by month

Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec

Recommended for Brazil

Marriott discount code: up to 20% off hotel stays

  • Save up to 20% when you book long stays with Marriott
  • 20% off - 4-6 nights, 15% off 3 nights
  • Book hotels in Europe, the Middle East & Africa
Show discount codeShow discount code ******UK8
Redeem Marriott discount code >>

View all Marriott offers

The 5-day weather forecast for Brazil (Porto Alegre) is provided by the Swiss meteorological agency, meteoblue. Find out more about our data sources.

Porto Alegre weather forecast by day

Below are the detailed weather forecasts for Porto Alegre for the next 5 days.

Porto Alegre weather for Wednesday 22nd October 2025

Expect scattered clouds in Porto Alegre, Brazil with a maximum temperature of 27°C, low levels of heat & humidity, maximum UV of 10 (Very High) and 11 hours of bright sunshine. There are 0 mm of rainfall expected and a light breeze of 7 kph from the east.

  • 27°C maximum temperature27
    °C maximum temperature
  • 15°C minimum temperature15
    °C minimum temperature
  • Scattered clouds
    scattered clouds
  • 11 hours of bright sunshine11
    hours of sunshine
  • UV (maximum) index 10 (Very High)10
    UV index (Very High)
  • 0 mm of rainfall expected0
    mm of rainfall expected
  • Low heat & humidityL
    low heat & humidity
  • Light breeze of 7 kph from the East7
    kph wind from E

Back to top

Porto Alegre weather for Thursday 23rd October 2025

Expect scattered clouds in Porto Alegre, Brazil with a maximum temperature of 26°C, low levels of heat & humidity, maximum UV of 10 (Very High) and 12 hours of bright sunshine. There are 0 mm of rainfall expected and little or no wind of 6 kph from the north-east.

  • 26°C maximum temperature26
    °C maximum temperature
  • 17°C minimum temperature17
    °C minimum temperature
  • Scattered clouds
    scattered clouds
  • 12 hours of bright sunshine12
    hours of sunshine
  • UV (maximum) index 10 (Very High)10
    UV index (Very High)
  • 0 mm of rainfall expected0
    mm of rainfall expected
  • Low heat & humidityL
    low heat & humidity
  • Little or no wind of 6 kph from the North-East6
    kph wind from NE

Back to top

Porto Alegre weather for Friday 24th October 2025

Expect scattered clouds in Porto Alegre, Brazil with a maximum temperature of 31°C, moderate levels of heat & humidity, maximum UV of 9 (Very High) and 12 hours of bright sunshine. There are 0 mm of rainfall expected and little or no wind of 5 kph from the north-east.

  • 31°C maximum temperature31
    °C maximum temperature
  • 17°C minimum temperature17
    °C minimum temperature
  • Scattered clouds
    scattered clouds
  • 12 hours of bright sunshine12
    hours of sunshine
  • UV (maximum) index 9 (Very High)9
    UV index (Very High)
  • 0 mm of rainfall expected0
    mm of rainfall expected
  • Moderate heat & humidityM
    moderate heat & humidity
  • Little or no wind of 5 kph from the North-East5
    kph wind from NE

Back to top

Porto Alegre weather for Saturday 25th October 2025

Expect isolated thunderstorms in Porto Alegre, Brazil with a maximum temperature of 31°C, moderate levels of heat & humidity, maximum UV of 10 (Very High) and 6 hours of bright sunshine. There are 0-2 mm of rainfall expected with 42% chance of some rain and little or no wind of 5 kph from the north-east.

  • 31°C maximum temperature31
    °C maximum temperature
  • 19°C minimum temperature19
    °C minimum temperature
  • Isolated thunderstorms
    isolated thunderstorms
  • 6 hours of bright sunshine6
    hours of sunshine
  • UV (maximum) index 10 (Very High)10
    UV index (Very High)
  • 42% chance of some rain42
    % chance of some rain
  • 0-2 mm of rainfall expected<2
    mm of rainfall expected
  • Moderate heat & humidityM
    moderate heat & humidity
  • Little or no wind of 5 kph from the North-East5
    kph wind from NE

Back to top

Porto Alegre weather for Sunday 26th October 2025

Expect mostly cloudy with light rain in Porto Alegre, Brazil with a maximum temperature of 22°C, maximum UV of 6 (High) and no hours of bright sunshine. There are 2-5 mm of rainfall expected with 65% chance of some rain and little or no wind of 6 kph from the south.

  • 22°C maximum temperature22
    °C maximum temperature
  • 18°C minimum temperature18
    °C minimum temperature
  • Mostly cloudy with light rain
    mostly cloudy with light rain
  • No hours of bright sunshine0
    hours of sunshine
  • UV (maximum) index 6 (High)6
    UV index (High)
  • 65% chance of some rain65
    % chance of some rain
  • 2-5 mm of rainfall expected<5
    mm of rainfall expected
  • No heat & humidity0
    no heat & humidity
  • Little or no wind of 6 kph from the South6
    kph wind from S

Back to top

KAYAK: Explore destinations from the UK

  • Explore top offers on direct flights from the UK
  • Filter destinations by price, trip type, flight time & more
  • Choose a destination to see cheapest fares & airlines
Go to KAYAK deal >>

View all KAYAK offers

Metric (°C / mm)  |  Imperial (°F / inches)

Back to top

More about Brazil

Related posts

Popular travel offers

Explore holiday destinations

More holidays

Save with latest deals & discounts

More deals

Airport parking

More parking

Airport lounges

More lounges

Top ^