Current Sea Water Temperature:
+82.6°F
| Maximum Sea Water Temperature in March: | 84.6°F |
| Minimum Sea Water Temperature in March: | 76.0°F |
| Average water temperature in March: | 80.9°F |
| detailed information | |
Sea Water Temperature for the Last 10 Days:
| March 16 | 82.6°F | March 11 | 82.8°F |
| March 15 | 81.8°F | March 10 | 83.0°F |
| March 14 | 82.4°F | March 09 | 83.2°F |
| March 13 | 82.4°F | March 08 | 81.2°F |
| March 12 | 82.2°F | March 07 | 82.0°F |
When is the Warmest Sea for Rio das Ostras?
According to our data for the last three years for Rio das Ostras the highest average sea water temperature was in March, February and April.
Average Water Temperature by Month, °F
Sea Water Temperature in March
The average sea surface temperature in March 2026 for Rio das Ostras was 81.8°F. The maximum and minimum values were 79.2°F and 83.2°F respectively.
Sea Water Temperature in February
The average sea surface temperature in February 2026 for Rio das Ostras was 81.6°F. The maximum and minimum values were 77.8°F and 85.4°F respectively.
Sea Water Temperature in April
The average sea surface temperature in April 2025 for Rio das Ostras was 80.2°F. The maximum and minimum values were 78.4°F and 83.6°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
Rio das Ostras
Local time: 03:40
17 mar, tuesday
| 0600 |  |
70°F | S 6 mph |
| 0900 |  |
78°F | SW 7 mph |
| 1200 | |
84°F | W 7 mph |
| 1500 | |
82°F | W 10 mph |
| 1800 | |
78°F | W 6 mph |
| 2100 |  |
76°F | SW 6 mph |
18 mar, wednesday
| 0000 |  |
74°F | S 4 mph |
| 0300 | |
72°F | S 3 mph |