World Resorts Brazil Porto Alegre Weather

Porto Alegre 7 Days Forecast

17.05
sun
Day
63°F
N 9 mph
Precip.
100%
Night
55°F
N 9 mph
Precip.
100%
18.05
mon
Day
57°F
NE 5 mph
Precip.
74%
Night
52°F
E 1 mph
Precip.
0%
19.05
tue
Day
61°F
E 4 mph
Precip.
0%
Night
50°F
SE 5 mph
Precip.
0%
20.05
wed
Day
59°F
E 9 mph
Precip.
0%
Night
50°F
E 4 mph
Precip.
0%
21.05
thu
Day
59°F
NE 3 mph
Precip.
0%
Night
52°F
NW 3 mph
Precip.
0%
22.05
fri
Day
61°F
NW 6 mph
Precip.
0%
Night
54°F
W 6 mph
Precip.
0%
23.05
sat
Day
66°F
NW 2 mph
Precip.
0%
Night
59°F
W 2 mph
Precip.
0%

Sea water temperature in May, °F

Show year:
2026
2025
2024

The average sea water temperature in May of 2026 was 66.9°F. The highest and lowest sea temperatures during the month were 69.8°F and 63.1°F.

Air temperature in Porto Alegre, °F

Precipitation total in Porto Alegre, in.

* Charts above show average data for the last 3 years.

Best time for vacation in Porto Alegre

Sunniest months:
February 15 days
March 15 days
May 15 days
Warmest months:
January 86.7 °F
February 86.6 °F
March 84.2 °F
Warmest sea temp:
February 81.1 °F
January 80.6 °F
March 79.8 °F
Coldest months:
July 64.5 °F
June 64.5 °F
August 67.5 °F
Rainiest months:
September 5 days
May 5 days
November 4 days
Windiest months:
December 7.3 mph
November 7.3 mph
January 7.2 mph

Porto Alegre on a weather map

Current weather
03:08
Porto Alegre
+61°F
N 3 mph
Feels like: +61°F
Precip.: 0%
Places in Brazil:
Name
°F
Balneario Pinhal
+63°F
Buzios
+70°F
Guarapari
+70°F
Guaratuba
+63°F
Joao Pessoa
+73°F
Ilha de Itamaraca
+75°F
Parati
+59°F
Pôrto Belo
+64°F
Recife
+75°F
Rio de Janeiro
+70°F
Rio das Ostras
+68°F
Sao Paulo
+61°F
Santos
+66°F
Florianopolis
+63°F
Fortaleza
+75°F
all places
24 Hours Forecast
Porto Alegre
Local time: 03:08
May 17, sunday
0600
61°F
N
5 mph
0900
61°F
N
4 mph
1200
63°F
N
9 mph
1500
61°F
N
11 mph
1800
57°F
N
12 mph
2100
57°F
N
7 mph
May 18, monday
0000
55°F
N
9 mph
0300
54°F
N
11 mph
Units of measurement: °C / °F