Porto Alegre weather live forecast

Today's maximum temperature in Porto Alegre is expected to be 28°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 April 2026 GMT

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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 April 2026

Expect isolated thunderstorms in Porto Alegre, Brazil with a maximum temperature of 28°C, low levels of heat & humidity, maximum UV of 6 (High) and 4 hours of bright sunshine. There are 0-2 mm of rainfall expected with 25% chance of some rain and a light breeze of 10 kph from the south-east.

  • 28°C maximum temperature28
    °C maximum temperature
  • 20°C minimum temperature20
    °C minimum temperature
  • Isolated thunderstorms
    isolated thunderstorms
  • 4 hours of bright sunshine4
    hours of sunshine
  • UV (maximum) index 6 (High)6
    UV index (High)
  • 25% chance of some rain25
    % chance of some rain
  • 0-2 mm of rainfall expected<2
    mm of rainfall expected
  • Low heat & humidityL
    low heat & humidity
  • Light breeze of 10 kph from the South-East10
    kph wind from SE

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Porto Alegre weather for Thursday 23rd April 2026

Expect isolated thunderstorms in Porto Alegre, Brazil with a maximum temperature of 22°C, maximum UV of 2 (Low) and 1 hour of bright sunshine. There are 20-30 mm of rainfall expected with 91% chance of some rain and a gentle breeze of 13 kph from the south-east.

  • 22°C maximum temperature22
    °C maximum temperature
  • 21°C minimum temperature21
    °C minimum temperature
  • Isolated thunderstorms
    isolated thunderstorms
  • 1 hour of bright sunshine1
    hour of sunshine
  • UV (maximum) index 2 (Low)2
    UV index (Low)
  • 91% chance of some rain91
    % chance of some rain
  • 20-30 mm of rainfall expected<30
    mm of rainfall expected
  • No heat & humidity0
    no heat & humidity
  • Gentle breeze of 13 kph from the South-East13
    kph wind from SE

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Porto Alegre weather for Friday 24th April 2026

Expect isolated thunderstorms in Porto Alegre, Brazil with a maximum temperature of 23°C, maximum UV of 2 (Low) and no hours of bright sunshine. There are 10-20 mm of rainfall expected with 78% chance of some rain and a light breeze of 11 kph from the south-east.

  • 23°C maximum temperature23
    °C maximum temperature
  • 20°C minimum temperature20
    °C minimum temperature
  • Isolated thunderstorms
    isolated thunderstorms
  • No hours of bright sunshine0
    hours of sunshine
  • UV (maximum) index 2 (Low)2
    UV index (Low)
  • 78% chance of some rain78
    % chance of some rain
  • 10-20 mm of rainfall expected<20
    mm of rainfall expected
  • 23°C wind chill23
    °C wind chill
  • Light breeze of 11 kph from the South-East11
    kph wind from SE

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Porto Alegre weather for Saturday 25th April 2026

Expect isolated thunderstorms in Porto Alegre, Brazil with a maximum temperature of 24°C, maximum UV of 5 (Moderate) and 2 hours of bright sunshine. There are 2-5 mm of rainfall expected with 60% chance of some rain and a gentle breeze of 13 kph from the south.

  • 24°C maximum temperature24
    °C maximum temperature
  • 20°C minimum temperature20
    °C minimum temperature
  • Isolated thunderstorms
    isolated thunderstorms
  • 2 hours of bright sunshine2
    hours of sunshine
  • UV (maximum) index 5 (Moderate)5
    UV index (Moderate)
  • 60% chance of some rain60
    % chance of some rain
  • 2-5 mm of rainfall expected<5
    mm of rainfall expected
  • 24°C wind chill24
    °C wind chill
  • Gentle breeze of 13 kph from the South13
    kph wind from S

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Porto Alegre weather for Sunday 26th April 2026

Expect isolated thunderstorms in Porto Alegre, Brazil with a maximum temperature of 23°C, maximum UV of 5 (Moderate) and 4 hours of bright sunshine. There are 2-5 mm of rainfall expected with 56% chance of some rain and a gentle breeze of 14 kph from the west.

  • 23°C maximum temperature23
    °C maximum temperature
  • 18°C minimum temperature18
    °C minimum temperature
  • Isolated thunderstorms
    isolated thunderstorms
  • 4 hours of bright sunshine4
    hours of sunshine
  • UV (maximum) index 5 (Moderate)5
    UV index (Moderate)
  • 56% chance of some rain56
    % chance of some rain
  • 2-5 mm of rainfall expected<5
    mm of rainfall expected
  • No heat & humidity0
    no heat & humidity
  • Gentle breeze of 14 kph from the West14
    kph wind from W

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