Porto Alegre weather live forecast

Today's maximum temperature in Porto Alegre is expected to be 86°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 Friday 9th January 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 Saturday 10th January 2026

Expect isolated thunderstorms in Porto Alegre, Brazil with a maximum temperature of 86°F, moderate levels of heat & humidity, maximum UV of 9 (Very High) and 1 hour of bright sunshine. There are 40-50 mm of rainfall expected with 97% chance of some rain and a light breeze of 4 mph from the north-west.

  • 86°F maximum temperature86
    °F maximum temperature
  • 75°F minimum temperature75
    °F minimum temperature
  • Isolated thunderstorms
    isolated thunderstorms
  • 1 hour of bright sunshine1
    hour of sunshine
  • UV (maximum) index 9 (Very High)9
    UV index (Very High)
  • 97% chance of some rain97
    % chance of some rain
  • 40-50 mm of rainfall expected<50
    mm of rainfall expected
  • Moderate heat & humidityM
    moderate heat & humidity
  • Light breeze of 4 mph from the North-West4
    mph wind from NW

Back to top

Porto Alegre weather for Sunday 11th January 2026

Expect isolated thunderstorms in Porto Alegre, Brazil with a maximum temperature of 82°F, low levels of heat & humidity, maximum UV of 11 (Extreme) and 5 hours of bright sunshine. There are 2-5 mm of rainfall expected with 55% chance of some rain and a light breeze of 6 mph from the west.

  • 82°F maximum temperature82
    °F maximum temperature
  • 72°F minimum temperature72
    °F minimum temperature
  • Isolated thunderstorms
    isolated thunderstorms
  • 5 hours of bright sunshine5
    hours of sunshine
  • UV (maximum) index 11 (Extreme)11
    UV index (Extreme)
  • 55% chance of some rain55
    % chance of some rain
  • 2-5 mm of rainfall expected<5
    mm of rainfall expected
  • Low heat & humidityL
    low heat & humidity
  • Light breeze of 6 mph from the West6
    mph wind from W

Back to top

Porto Alegre weather for Monday 12th January 2026

Expect broken clouds in Porto Alegre, Brazil with a maximum temperature of 84°F, moderate levels of heat & humidity, maximum UV of 11 (Extreme) and 4 hours of bright sunshine. There are 0 mm of rainfall expected and little or no wind of 4 mph from the west.

  • 84°F maximum temperature84
    °F maximum temperature
  • 72°F minimum temperature72
    °F minimum temperature
  • Broken clouds
    broken clouds
  • 4 hours of bright sunshine4
    hours of sunshine
  • UV (maximum) index 11 (Extreme)11
    UV index (Extreme)
  • 0 mm of rainfall expected0
    mm of rainfall expected
  • Moderate heat & humidityM
    moderate heat & humidity
  • Little or no wind of 4 mph from the West4
    mph wind from W

Back to top

Porto Alegre weather for Tuesday 13th January 2026

Expect scattered clouds in Porto Alegre, Brazil with a maximum temperature of 90°F, moderate levels of heat & humidity, maximum UV of 11+ (Extreme) and 9 hours of bright sunshine. There are 0 mm of rainfall expected and little or no wind of 4 mph from the east.

  • 90°F maximum temperature90
    °F maximum temperature
  • 72°F minimum temperature72
    °F minimum temperature
  • Scattered clouds
    scattered clouds
  • 9 hours of bright sunshine9
    hours of sunshine
  • UV (maximum) index 11+ (Extreme)11
    UV index (Extreme)
  • 0 mm of rainfall expected0
    mm of rainfall expected
  • Moderate heat & humidityM
    moderate heat & humidity
  • Little or no wind of 4 mph from the East4
    mph wind from E

Back to top

Porto Alegre weather for Wednesday 14th January 2026

Expect isolated thunderstorms in Porto Alegre, Brazil with a maximum temperature of 90°F, high levels of heat & humidity, maximum UV of 11+ (Extreme) and 8 hours of bright sunshine. There are 2-5 mm of rainfall expected with 48% chance of some rain and little or no wind of 4 mph from the east.

  • 90°F maximum temperature90
    °F maximum temperature
  • 75°F minimum temperature75
    °F minimum temperature
  • Isolated thunderstorms
    isolated thunderstorms
  • 8 hours of bright sunshine8
    hours of sunshine
  • UV (maximum) index 11+ (Extreme)11
    UV index (Extreme)
  • 48% chance of some rain48
    % chance of some rain
  • 2-5 mm of rainfall expected<5
    mm of rainfall expected
  • High heat & humidityH
    high heat & humidity
  • Little or no wind of 4 mph from the East4
    mph wind from E

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

Metric (°C)  |  Imperial (°F)

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 ^