Current Sea Water Temperature:
+81.0°F
| Maximum Sea Water Temperature in March: | 90.8°F |
| Minimum Sea Water Temperature in March: | 77.6°F |
| Average water temperature in March: | 83.2°F |
| detailed information | |
Sea Water Temperature for the Last 10 Days:
| March 16 | 81.0°F | March 11 | 81.6°F |
| March 15 | 81.8°F | March 10 | 82.0°F |
| March 14 | 80.8°F | March 09 | 83.0°F |
| March 13 | 81.0°F | March 08 | 84.2°F |
| March 12 | 80.8°F | March 07 | 82.4°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
Sea Water Temperature in February
The average sea surface temperature in February 2026 for Porto Alegre was 84.8°F. The maximum and minimum values were 82.0°F and 86.6°F respectively.
Sea Water Temperature in January
The average sea surface temperature in January 2026 for Porto Alegre was 83.6°F. The maximum and minimum values were 81.4°F and 86.4°F respectively.
Sea Water Temperature in March
The average sea surface temperature in March 2026 for Porto Alegre was 82.0°F. The maximum and minimum values were 80.8°F and 84.2°F respectively.
Brazil Resorts:
NAME
F°
| Angra dos Reis |  |
+70 |
| Balneario Camboriu |  |
+78 |
| Buzios | |
+74 |
| Florianopolis | |
+76 |
| Fortaleza |  |
+80 |
| Joao Pessoa | |
+82 |
| Natal |  |
+82 |
| Porto Alegre | |
+76 |
| Recife | |
+82 |
| Rio de Janeiro | |
+74 |
| Rio Grande | |
+76 |
| Salvador | |
+82 |
| Santos | |
+72 |
| Sao Paulo | |
+68 |
| Sao Sebastiao | |
+72 |
Countries:
NAME
POPULARITY
24 Hours Weather Forecast
Porto Alegre
Local time: 03:40
17 mar, tuesday
| 0600 |  |
76°F | SW 2 mph |
| 0900 |  |
80°F | SE 3 mph |
| 1200 |  |
82°F | SE 4 mph |
| 1500 | |
78°F | W 2 mph |
| 1800 |  |
80°F | W 7 mph |
| 2100 | |
78°F | W 4 mph |
18 mar, wednesday
| 0000 | |
76°F | S 3 mph |
| 0300 | |
76°F | SE 2 mph |