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Porto Alegre weather for today, tomorrow and the next 14 days, compared across three independent forecast sources so you can see where they agree before you plan your day. Right now it is 18°C and sunny in Porto Alegre. Tomorrow's forecast: highs of 26°C, lows of 20°C with a 100% chance of rain.

Sources: Open-Meteo, OpenWeather, WeatherAPI · Updated every 12 hours

Porto AlegreBrazil

Updated 07:31 PM

18°

Sunny

Feels like 18°

Humidity
78%
Wind
28 km/h
Pressure
1020 hPa
Visibility
10 km
UV Index
0
Precipitation
0%
Sunrise
05:40 AM
Sunset
06:38 PM

Forecast Comparison

See how independent weather sources forecast the same location right now.

OpenWeatherMap

18°

Sunny

Precipitation
0%
Wind
28 km/h
Source: OpenWeatherMap
WeatherAPI.com

18°

Partly Cloudy

Precipitation
12%
Wind
19 km/h
Source: WeatherAPI.com
Open-Meteo

18°

Mostly Sunny

Precipitation
3%
Wind
21 km/h
Source: Open-Meteo

Forecast agreement

Sources are closely aligned

Temperature range

18° – 18°

Rain probability

0% – 12%

Wind speed

19 km/h – 28 km/h

Temperature by provider

Hourly forecast

9 PM19°0%20 km/h
12 AM18°0%12 km/h
3 AM18°0%13 km/h
6 AM21°0%14 km/h
9 AM24°0%11 km/h
12 PM28°0%9 km/h
3 PM27°0%10 km/h
6 PM22°0%11 km/h
9 PM20°0%11 km/h
12 AM20°20%10 km/h
3 AM20°0%7 km/h
6 AM20°100%10 km/h
9 AM20°100%9 km/h
12 PM26°0%14 km/h
3 PM26°0%9 km/h
6 PM24°20%5 km/h

16-day forecast

TodayOct 21
23°14°
4% rain
ThuOct 22
26°16°
36% rain
FriOct 23
28°17°
44% rain
SatOct 24
22°17°
47% rain
SunOct 25
20°14°
78% rain
MonOct 26
20°13°
76% rain
TueOct 27
24°12°
10% rain
WedOct 28
27°16°
17% rain
ThuOct 29
25°17°
33% rain
FriOct 30
25°16°
37% rain
SatOct 31
25°15°
31% rain
SunNov 1
28°14°
12% rain
MonNov 2
32°18°
24% rain
TueNov 3
29°21°
45% rain
WedNov 4
28°22°
39% rain
ThuNov 5
24°17°
52% rain

Rain forecast

Precipitation probability: 100%

Hourly precipitation timeline

Wind

NESW

Direction: E

Current wind

28 km/h

Gusts

36 km/h

Hourly wind

9 PM20 km/h
12 AM12 km/h
3 AM13 km/h
6 AM14 km/h
9 AM11 km/h
12 PM9 km/h
3 PM10 km/h
6 PM11 km/h
9 PM11 km/h
12 AM10 km/h
3 AM7 km/h
6 AM10 km/h

Daily wind

Thu20 km/h
Fri14 km/h
Sat21 km/h
Sun22 km/h
Mon17 km/h

Weather alerts

No active weather alerts.

Weather map

Porto Alegre this time of year

  • Expect more cloud than at any other time of year.
  • Rain is above Porto Alegre's usual level, by about 38%.
  • October brings mid-spring to Porto Alegre — the seasons are reversed south of the equator.

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Porto Alegre weather overview: climate, seasons and what to expect

Porto Alegre, in Rio Grande do Sul, Brazil, sits at approximately 30.03°S, 51.23°W and is home to about 1,373,000 people. This page compares forecasts from three independent weather providers — Open-Meteo, OpenWeather and WeatherAPI — so you can see at a glance where they agree and where they differ. The data refreshes every 12 hours via ISR.

Porto Alegre has a humid subtropical climate: hot, humid summers and mild winters. The warmest month is February, with highs around 30°C; the coolest is July, when nights average 9°C. October is usually the wettest month (about 168 mm). Close to Porto Alegre, you can also check Caxias do Sul (96 km), Pelotas (220 km) and Florianópolis (376 km).

Frequently asked questions

What is the weather in Porto Alegre today?
Right now Porto Alegre shows sunny conditions at around 18°C (feels like 18°C), based on OpenWeatherMap. The chance of rain today is about 0%. Compare this with the other sources above for a fuller picture.
What is the weather in Porto Alegre tomorrow?
Tomorrow in Porto Alegre: expect a high of 26°C and a low of 20°C, with a 100% chance of rain. See the hourly breakdown above for more detail.
Will it rain in Porto Alegre today?
The precipitation probability for Porto Alegre is around 0% according to OpenWeatherMap. Check the Rain forecast section for the hour-by-hour breakdown and compare with other sources.
What is the 14-day forecast for Porto Alegre?
The 14-day forecast above shows daily highs, lows and rain probability for Porto Alegre from multiple sources; compare them to see how confident the outlook is.

More weather questions answered →

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