Porto Alegre weather live forecast

Today's maximum temperature in Porto Alegre is expected to be 23°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 26th August 2026 GMT

More about Porto Alegre

Porto Alegre by month

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

Recommended for Brazil

Fred Olsen: Top cruise offers for 2026/2027

  • Explore latest offers on Fred Olsen Cruises in 2026/2027
  • Find last minute deals or early bird discounts
  • Filter offers by price, destination, ship & departure point
Go to Fred Olsen deal >>

View all Fred Olsen offers

Fred OlsenCruise deal finder

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 26th August 2026

Expect broken clouds in Porto Alegre, Brazil with a maximum temperature of 23°C, maximum UV of 6 (High) and 5 hours of bright sunshine. There are 0 mm of rainfall expected and little or no wind of 3 kph from the east.

  • 23°C maximum temperature23
    °C maximum temperature
  • 13°C minimum temperature13
    °C minimum temperature
  • Broken clouds
    broken clouds
  • 5 hours of bright sunshine5
    hours of sunshine
  • UV (maximum) index 6 (High)6
    UV index (High)
  • 0 mm of rainfall expected0
    mm of rainfall expected
  • No heat & humidity0
    no heat & humidity
  • Little or no wind of 3 kph from the East3
    kph wind from E

Back to top

Porto Alegre weather for Thursday 27th August 2026

Expect isolated thunderstorms in Porto Alegre, Brazil with a maximum temperature of 24°C, maximum UV of 2 (Low) and 3 hours of bright sunshine. There are 5-10 mm of rainfall expected with 66% chance of some rain and little or no wind of 2 kph from the east.

  • 24°C maximum temperature24
    °C maximum temperature
  • 17°C minimum temperature17
    °C minimum temperature
  • Isolated thunderstorms
    isolated thunderstorms
  • 3 hours of bright sunshine3
    hours of sunshine
  • UV (maximum) index 2 (Low)2
    UV index (Low)
  • 66% chance of some rain66
    % chance of some rain
  • 5-10 mm of rainfall expected<10
    mm of rainfall expected
  • 24°C wind chill24
    °C wind chill
  • Little or no wind of 2 kph from the East2
    kph wind from E

Back to top

Porto Alegre weather for Friday 28th August 2026

Expect isolated thunderstorms in Porto Alegre, Brazil with a maximum temperature of 22°C, maximum UV of 4 (Moderate) and 2 hours of bright sunshine. There are 20-30 mm of rainfall expected with 89% chance of some rain and little or no wind of 3 kph from the south-east.

  • 22°C maximum temperature22
    °C maximum temperature
  • 18°C minimum temperature18
    °C minimum temperature
  • Isolated thunderstorms
    isolated thunderstorms
  • 2 hours of bright sunshine2
    hours of sunshine
  • UV (maximum) index 4 (Moderate)4
    UV index (Moderate)
  • 89% chance of some rain89
    % chance of some rain
  • 20-30 mm of rainfall expected<30
    mm of rainfall expected
  • 22°C wind chill22
    °C wind chill
  • Little or no wind of 3 kph from the South-East3
    kph wind from SE

Back to top

Porto Alegre weather for Saturday 29th August 2026

Expect isolated thunderstorms in Porto Alegre, Brazil with a maximum temperature of 18°C, maximum UV of 3 (Moderate) and no hours of bright sunshine. There are 30-40 mm of rainfall expected with 86% chance of some rain and little or no wind of 3 kph from the south.

  • 18°C maximum temperature18
    °C maximum temperature
  • 17°C minimum temperature17
    °C minimum temperature
  • Isolated thunderstorms
    isolated thunderstorms
  • No hours of bright sunshine0
    hours of sunshine
  • UV (maximum) index 3 (Moderate)3
    UV index (Moderate)
  • 86% chance of some rain86
    % chance of some rain
  • 30-40 mm of rainfall expected<40
    mm of rainfall expected
  • No heat & humidity0
    no heat & humidity
  • Little or no wind of 3 kph from the South3
    kph wind from S

Back to top

Porto Alegre weather for Sunday 30th August 2026

Expect isolated thunderstorms in Porto Alegre, Brazil with a maximum temperature of 18°C, maximum UV of 2 (Low) and no hours of bright sunshine. There are 10-20 mm of rainfall expected with 82% chance of some rain and little or no wind of 5 kph from the south-east.

  • 18°C maximum temperature18
    °C maximum temperature
  • 17°C minimum temperature17
    °C minimum temperature
  • Isolated thunderstorms
    isolated thunderstorms
  • No hours of bright sunshine0
    hours of sunshine
  • UV (maximum) index 2 (Low)2
    UV index (Low)
  • 82% chance of some rain82
    % chance of some rain
  • 10-20 mm of rainfall expected<20
    mm of rainfall expected
  • 18°C wind chill18
    °C wind chill
  • Little or no wind of 5 kph from the South-East5
    kph wind from SE

Back to top

Fred Olsen: Top cruise offers for 2026/2027

  • Explore latest offers on Fred Olsen Cruises in 2026/2027
  • Find last minute deals or early bird discounts
  • Filter offers by price, destination, ship & departure point
Go to Fred Olsen deal >>

View all Fred Olsen offers

Fred OlsenCruise deal finder

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 ^