Porto Alegre weather live forecast

Today's maximum temperature in Porto Alegre is expected to be 77°F. 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 Tuesday 10th March 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 Tuesday 10th March 2026

Expect mostly cloudy with light rain in Porto Alegre, Brazil with a maximum temperature of 77°F, maximum UV of 4 (Moderate) and 1 hour of bright sunshine. There are 2-5 mm of rainfall expected with 29% chance of some rain and a light breeze of 6 mph from the east.

  • 77°F maximum temperature77
    °F maximum temperature
  • 68°F minimum temperature68
    °F minimum temperature
  • Mostly cloudy with light rain
    mostly cloudy with light rain
  • 1 hour of bright sunshine1
    hour of sunshine
  • UV (maximum) index 4 (Moderate)4
    UV index (Moderate)
  • 29% chance of some rain29
    % chance of some rain
  • 2-5 mm of rainfall expected<5
    mm of rainfall expected
  • 77°F wind chill77
    °F wind chill
  • Light breeze of 6 mph from the East6
    mph wind from E

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Porto Alegre weather for Wednesday 11th March 2026

Expect isolated thunderstorms in Porto Alegre, Brazil with a maximum temperature of 81°F, low levels of heat & humidity, maximum UV of 5 (Moderate) and 4 hours of bright sunshine. There are 0-2 mm of rainfall expected with 58% chance of some rain and a light breeze of 4 mph from the east.

  • 81°F maximum temperature81
    °F maximum temperature
  • 72°F minimum temperature72
    °F minimum temperature
  • Isolated thunderstorms
    isolated thunderstorms
  • 4 hours of bright sunshine4
    hours of sunshine
  • UV (maximum) index 5 (Moderate)5
    UV index (Moderate)
  • 58% chance of some rain58
    % chance of some rain
  • 0-2 mm of rainfall expected<2
    mm of rainfall expected
  • Low heat & humidityL
    low heat & humidity
  • Light breeze of 4 mph from the East4
    mph wind from E

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Porto Alegre weather for Thursday 12th March 2026

Expect isolated thunderstorms in Porto Alegre, Brazil with a maximum temperature of 82°F, low levels of heat & humidity, maximum UV of 7 (High) and 3 hours of bright sunshine. There are 2-5 mm of rainfall expected with 70% chance of some rain and little or no wind of 3 mph from the south-east.

  • 82°F maximum temperature82
    °F maximum temperature
  • 70°F minimum temperature70
    °F minimum temperature
  • Isolated thunderstorms
    isolated thunderstorms
  • 3 hours of bright sunshine3
    hours of sunshine
  • UV (maximum) index 7 (High)7
    UV index (High)
  • 70% chance of some rain70
    % chance of some rain
  • 2-5 mm of rainfall expected<5
    mm of rainfall expected
  • Low heat & humidityL
    low heat & humidity
  • Little or no wind of 3 mph from the South-East3
    mph wind from SE

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Porto Alegre weather for Friday 13th March 2026

Expect broken clouds in Porto Alegre, Brazil with a maximum temperature of 86°F, moderate levels of heat & humidity, maximum UV of 8 (Very High) and 6 hours of bright sunshine. There are 0 mm of rainfall expected and little or no wind of 4 mph from the south.

  • 86°F maximum temperature86
    °F maximum temperature
  • 70°F minimum temperature70
    °F minimum temperature
  • Broken clouds
    broken clouds
  • 6 hours of bright sunshine6
    hours of sunshine
  • UV (maximum) index 8 (Very High)8
    UV index (Very High)
  • 0 mm of rainfall expected0
    mm of rainfall expected
  • Moderate heat & humidityM
    moderate heat & humidity
  • Little or no wind of 4 mph from the South4
    mph wind from S

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Porto Alegre weather for Saturday 14th March 2026

Expect broken clouds in Porto Alegre, Brazil with a maximum temperature of 88°F, moderate levels of heat & humidity, maximum UV of 10 (Very High) and 7 hours of bright sunshine. There are 0 mm of rainfall expected and little or no wind of 4 mph from the south-east.

  • 88°F maximum temperature88
    °F maximum temperature
  • 68°F minimum temperature68
    °F minimum temperature
  • Broken clouds
    broken clouds
  • 7 hours of bright sunshine7
    hours of sunshine
  • UV (maximum) index 10 (Very High)10
    UV index (Very High)
  • 0 mm of rainfall expected0
    mm of rainfall expected
  • Moderate heat & humidityM
    moderate heat & humidity
  • Little or no wind of 4 mph from the South-East4
    mph wind from SE

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  • Find last minute deals or early bird discounts
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