Measurements:
°C
°F
CURRENT WEATHER
20:06
Porto Alegre
72°F
N 11 mph
Feels like: 72°F
Precip: 74%
World Resorts Brazil Porto Alegre Weather

7 Day Weather Forecast

12.15
mon
DAY
96°F
E 4 mph
precip
0%
NIGHT
70°F
N 9 mph
precip
100%
12.16
tue
DAY
84°F
N 7 mph
precip
0%
NIGHT
68°F
NW 6 mph
precip
79%
12.17
wed
DAY
82°F
N 6 mph
precip
0%
NIGHT
66°F
W 6 mph
precip
0%
12.18
thu
DAY
92°F
NE 2 mph
precip
0%
NIGHT
70°F
W 4 mph
precip
0%
12.19
fri
DAY
94°F
NW 4 mph
precip
0%
NIGHT
72°F
W 5 mph
precip
0%
12.20
sat
DAY
98°F
E 4 mph
precip
0%
NIGHT
78°F
SW 5 mph
precip
0%
12.21
sun
DAY
102°F
SE 7 mph
precip
22%
NIGHT
78°F
NW 2 mph
precip
100%

Porto Alegre Sea Water Temperature in December, °F

Select Year: 2025 2024 2023

The average sea surface temperature in December 2025 for Porto Alegre was 25.7°F. The maximum and minimum values were 24.2°F and 26.7°F respectively.

Porto Alegre on the Weather Map

Best Time to Visit Porto Alegre
The most sunny months:
February 15 days
March 15 days
May 15 days
The most warm months:
January 91.1 °F
February 90.8 °F
March 88.0 °F
Warmest sea temperature:
February 84.5 °F
January 84.1 °F
March 83.3 °F
The most cold months:
July 66.1 °F
June 66.2 °F
August 69.5 °F
The most rainy months:
September 5 days
May 5 days
November 4 days
The most windy months:
December 7 mph
November 7 mph
January 7 mph
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