The 10 most alternative cities in South America
Discover South America's top 10 alternative cities! From Valparaíso's vibrant streets to La Paz's high-altitude charm and Medellín's innovative spirit.
10-Day Weather Forecast for Porto Alegre
Six-hourly outlook through Wednesday 21 October. Updated every three hours via MET Norway.
Day
Night
03:00
Morning
09:00
Afternoon
15:00
Evening
21:00
Monday
12 Oct
—
—
20°C (68°F)
2.3 mm (0.1 in)
15°C (59°F)
32 mm (1.3 in)
Hourly ›
Mon
12 Oct
Hourly ›
night
—
morning
—
afternoon
20°C (68°F)
2.3 mm (0.1 in)
evening
15°C (59°F)
32 mm (1.3 in)
Tuesday
13 Oct
14°C (57°F)
1.4 mm (0.1 in)
18°C (64°F)
1 mm (0.04 in)
21°C (70°F)
0.3 mm (0.01 in)
18°C (64°F)
0 mm (0 in)
Hourly ›
Tue
13 Oct
Hourly ›
night
14°C (57°F)
1.4 mm (0.1 in)
morning
18°C (64°F)
1 mm (0.04 in)
afternoon
21°C (70°F)
0.3 mm (0.01 in)
evening
18°C (64°F)
0 mm (0 in)
Wednesday
14 Oct
18°C (64°F)
0.4 mm (0.02 in)
19°C (66°F)
0.3 mm (0.01 in)
21°C (70°F)
0.1 mm (0 in)
18°C (64°F)
0 mm (0 in)
Hourly ›
Wed
14 Oct
Hourly ›
night
18°C (64°F)
0.4 mm (0.02 in)
morning
19°C (66°F)
0.3 mm (0.01 in)
afternoon
21°C (70°F)
0.1 mm (0 in)
evening
18°C (64°F)
0 mm (0 in)
Thursday
15 Oct
18°C (64°F)
0.1 mm (0 in)
20°C (68°F)
1.6 mm (0.1 in)
22°C (72°F)
1.9 mm (0.1 in)
18°C (64°F)
8.5 mm (0.3 in)
Hourly ›
Thu
15 Oct
Hourly ›
night
18°C (64°F)
0.1 mm (0 in)
morning
20°C (68°F)
1.6 mm (0.1 in)
afternoon
22°C (72°F)
1.9 mm (0.1 in)
evening
18°C (64°F)
8.5 mm (0.3 in)
Friday
16 Oct
17°C (63°F)
1.2 mm (0.05 in)
18°C (64°F)
2.4 mm (0.1 in)
20°C (68°F)
0.8 mm (0.03 in)
17°C (63°F)
1.1 mm (0.04 in)
Hourly ›
Fri
16 Oct
Hourly ›
night
17°C (63°F)
1.2 mm (0.05 in)
morning
18°C (64°F)
2.4 mm (0.1 in)
afternoon
20°C (68°F)
0.8 mm (0.03 in)
evening
17°C (63°F)
1.1 mm (0.04 in)
Saturday
17 Oct
14°C (57°F)
0.5 mm (0.02 in)
17°C (63°F)
5.1 mm (0.2 in)
19°C (66°F)
0.4 mm (0.02 in)
15°C (59°F)
0.8 mm (0.03 in)
Hourly ›
Sat
17 Oct
Hourly ›
night
14°C (57°F)
0.5 mm (0.02 in)
morning
17°C (63°F)
5.1 mm (0.2 in)
afternoon
19°C (66°F)
0.4 mm (0.02 in)
evening
15°C (59°F)
0.8 mm (0.03 in)
Sunday
18 Oct
—
13°C (55°F)
0.1 mm (0 in)
15°C (59°F)
0.3 mm (0.01 in)
18°C (64°F)
0.2 mm (0.01 in)
Hourly ›
Sun
18 Oct
Hourly ›
night
—
morning
13°C (55°F)
0.1 mm (0 in)
afternoon
15°C (59°F)
0.3 mm (0.01 in)
evening
18°C (64°F)
0.2 mm (0.01 in)
Monday
19 Oct
14°C (57°F)
0.2 mm (0.01 in)
12°C (54°F)
0 mm (0 in)
15°C (59°F)
0 mm (0 in)
19°C (66°F)
0 mm (0 in)
Hourly ›
Mon
19 Oct
Hourly ›
night
14°C (57°F)
0.2 mm (0.01 in)
morning
12°C (54°F)
0 mm (0 in)
afternoon
15°C (59°F)
0 mm (0 in)
evening
19°C (66°F)
0 mm (0 in)
Tuesday
20 Oct
14°C (57°F)
0 mm (0 in)
11°C (52°F)
0 mm (0 in)
17°C (63°F)
0.1 mm (0 in)
21°C (70°F)
0 mm (0 in)
Hourly ›
Tue
20 Oct
Hourly ›
night
14°C (57°F)
0 mm (0 in)
morning
11°C (52°F)
0 mm (0 in)
afternoon
17°C (63°F)
0.1 mm (0 in)
evening
21°C (70°F)
0 mm (0 in)
Wednesday
21 Oct
15°C (59°F)
0 mm (0 in)
15°C (59°F)
0 mm (0 in)
18°C (64°F)
0 mm (0 in)
20°C (68°F)
0 mm (0 in)
Hourly ›
Wed
21 Oct
Hourly ›
night
15°C (59°F)
0 mm (0 in)
morning
15°C (59°F)
0 mm (0 in)
afternoon
18°C (64°F)
0 mm (0 in)
evening
20°C (68°F)
0 mm (0 in)
Data from MET Norway · Updated every three hours.
What's the weather in Porto Alegre this week?
Today's weather - Monday 12 Oct
For the rest of Monday the predicted weather in Porto Alegre is rain during the afternoon and evening. The temperature will be around 20°C (68°F).
Tomorrow's weather - Tuesday 13 Oct
The forecast for Porto Alegre on Tuesday is cloudy with some rain during the morning and night. Temperatures will range from a mild 14°C (57°F) to a pleasant 21°C (70°F).
10-Day Weather Forecast
The 10-day forecast shows that temperatures will reach 22°C (72°F) on Thursday before declining again. During this period, expect daytime highs around 20°C (68°F) and nighttime lows around 15°C (59°F). Compared to October norms, this represents much cooler than usual weather. The following 10 days will bring a mix of sun and clouds. Precipitation levels will be a bit more than usual (versus normal October rainfall), with some rainy days. Precipitation is likely on about 5 days (Mon, Tue, Thu, Fri, Sat).
Weather Forecast FAQ for Porto Alegre
When will be the warmest day next week?
The warmest day is expected to be Thursday with a high of 22°C (72°F).
When will be the coldest day?
The coldest day is forecasted for Monday with a low of 12°C (54°F).
Will it rain next week in Porto Alegre?
Yes, rain is expected on 5 days , specifically on Mon, Tue, Thu, Fri, Sat.
How much rainfall is expected next week?
A total of 63 mm (2.5 in) of rain is forecasted for the 10-day period.
What will be the temperature range next week?
Temperatures will range from 12°C (54°F) to 22°C (72°F).
More about Porto Alegre
Explore the full Porto Alegre climate overview with monthly averages, or check rainfall data and temperature by month.
Porto Alegre weather by month
Browse monthly averages for Porto Alegre: climate by month with temperature, rainfall and sunshine.
Travel inspiration
Need travel inspiration? Check out our bucket list articles and be inspired.
The 10 most alternative cities in South America
The 5 most tranquil retreats in the Amazon Rainforest, Brazil
Discover top sustainable lodges in the Amazon. Enjoy unique wildlife, eco-friendly stays, and immersive experiences at Anavilhanas, Cristalino, and more.
Brazil in November: Where Is the Best Weather?
Discover where Brazil has the best weather in November, comparing Fortaleza, Salvador, Rio, São Paulo, Florianópolis, Brasília and Foz do Iguaçu.
An alternative way to discover Rio de Janeiro
Don't feel like seeing the traditional tourist sights in Rio de Janeiro? We have made an overview of the sights in Rio de Janeiro that you must see if you want to visit Rio in an alternative way.