Current Sea Water Temperature:
+81.8°F
| Maximum Sea Water Temperature in March: | 90.8°F |
| Minimum Sea Water Temperature in March: | 77.6°F |
| Average water temperature in March: | 83.4°F |
| detailed information | |
Sea Water Temperature for the Last 10 Days:
| March 17 | 81.8°F | March 12 | 86.6°F |
| March 16 | 83.0°F | March 11 | 88.2°F |
| March 15 | 84.4°F | March 10 | 89.2°F |
| March 14 | 85.0°F | March 09 | 89.4°F |
| March 13 | 85.8°F | March 08 | 89.8°F |
When is the Warmest Sea for Porto Alegre?
According to our data for the last three years for Porto Alegre the highest average sea water temperature was in February, January and March.
Average Water Temperature by Month, °F
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
0
14
28
42
56
70
84
98
112
80.3
76.3
71.2
66.1
62.6
60.4
63.9
68.6
76
83.4
84.5
84.1
Sea Water Temperature in February
1
3
5
7
9
11
13
15
17
19
21
23
25
27
29
31
76
79
82
85
88
91
94
The average sea surface temperature in February 2025 for Porto Alegre was 86.6°F. The maximum and minimum values were 84.6°F and 88.8°F respectively.
Sea Water Temperature in January
1
3
5
7
9
11
13
15
17
19
21
23
25
27
29
31
75
78
81
84
87
90
93
The average sea surface temperature in January 2025 for Porto Alegre was 84.1°F. The maximum and minimum values were 80.2°F and 87.6°F respectively.
Sea Water Temperature in March
1
3
5
7
9
11
13
15
17
19
21
23
25
27
29
31
75
78
81
84
87
90
93
96
The average sea surface temperature in March 2025 for Porto Alegre was 87.5°F. The maximum and minimum values were 81.8°F and 90.8°F respectively.
Brazil Resorts:
NAME
F°
| Angra dos Reis |  |
+74 |
| Buzios |  |
+78 |
| Florianopolis | |
+72 |
| Fortaleza |  |
+78 |
| Itajai | |
+76 |
| Joao Pessoa | |
+82 |
| Natal | |
+80 |
| Recife | |
+82 |
| Rio de Janeiro | |
+80 |
| Rio Grande |  |
+72 |
| Salvador | |
+84 |
| Santos | |
+78 |
| Sao Paulo | |
+72 |
| Sao Sebastiao | |
+76 |
| Ubatuba | |
+74 |
Countries:
NAME
POPULARITY
24 Hours Weather Forecast
Porto Alegre
Local time: 21:05
18 mar, tuesday
| 0000 |  |
74°F | N 2 mph |
| 0300 |  |
72°F | E 2 mph |
| 0600 | |
74°F | E 4 mph |
| 0900 | |
80°F | NE 5 mph |
| 1200 | |
84°F | N 8 mph |
| 1500 |  |
86°F | NW 11 mph |
| 1800 |  |
78°F | NW 8 mph |
| 2100 |  |
74°F | NW 6 mph |