Weather Forecast for Porto Alegre

Rio Grande do Sul, Brazil

select dropwdown icon
Share
Moderate or heavy rain with thunder

Current Weather - Porto Alegre: 25°C

Rio Grande do Sul, Brazil

Moderate or heavy rain with thunder

Feels like 28°C

Wind

13 km/h ENE

Humidity

94%

Pressure

1010 mb

UV Index

0

Visibility

3 km

Moderate rain

Moderate rain

Tuesday, March 17, 2026

High

31°C

Low

22°C

Rain Chance

85%

Hourly Forecast

Light rain shower 23°C
22:00
Patchy rain nearby 22°C
23:00
Mar 18

Day Statistics

Maximum Wind

16 km/h

Humidity

79%

Precipitation

5 mm

UV Index

2

Visibility

10 km

Rain Chance

85%

Snow Chance

0%

Sun & Moon

Sunrise

06:26 AM

Sunset

06:39 PM

Moonrise

04:49 AM

Moonset

05:52 PM

Moon Phase

Waning Crescent

Moon Illumination

5%

Air Quality

PM2.5

11.1

μg/m³

PM10

11.8

μg/m³

NO₂

10.7

μg/m³

O₃

77.1

μg/m³

SO₂

4.2

μg/m³

CO

248.9

μg/m³

US EPA Index: 1 GB DEFRA Index: 1

When to visit Porto Alegre?

Plan your perfect trip with our month-by-month weather guide

⭐ Best months: January February March

January

☀️
31°C
💧
20 Days of rain
❄️
No snowfall
Best time to visit
🔥 Hottest month

February

☀️
31°C
💧
20 Days of rain
❄️
No snowfall
Best time to visit

March

☀️
30°C
💧
17 Days of rain
❄️
No snowfall
Best time to visit

April

☀️
27°C
💧
16 Days of rain
❄️
No snowfall
🌵 Driest month

May

☀️
23°C
💧
16 Days of rain
❄️
No snowfall

June

☀️
21°C
💧
17 Days of rain
❄️
No snowfall

July

☀️
20°C
💧
20 Days of rain
❄️
No snowfall
🥶 Coldest month

August

☀️
22°C
💧
17 Days of rain
❄️
No snowfall

September

☀️
23°C
💧
21 Days of rain
❄️
No snowfall

October

☀️
25°C
💧
25 Days of rain
❄️
No snowfall
🌧 Wettest month,

November

☀️
28°C
💧
18 Days of rain
❄️
No snowfall

December

☀️
30°C
💧
18 Days of rain
❄️
No snowfall