Current Sea Water Temperature:
+80.2°F
| Maximum Sea Water Temperature in October: | 81.0°F |
| Minimum Sea Water Temperature in October: | 68.4°F |
| Average water temperature in October: | 74.9°F |
| detailed information | |
Sea Water Temperature for the Last 10 Days:
| October 18 | 80.2°F | October 13 | 79.0°F |
| October 17 | 80.6°F | October 12 | 78.4°F |
| October 16 | 81.0°F | October 11 | 76.6°F |
| October 15 | 80.2°F | October 10 | 76.8°F |
| October 14 | 80.2°F | October 09 | 76.8°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 82.0°F. The maximum and minimum values were 79.2°F and 84.2°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 2026 for Rio das Ostras was 79.8°F. The maximum and minimum values were 78.0°F and 83.2°F respectively.
Brazil Resorts:
NAME
F°
| Balneario Camboriu |  |
+48 |
| Buzios |  |
+70 |
| Duque de Caxias |  |
+70 |
| Florianopolis | |
+54 |
| Fortaleza | |
+82 |
| Garopaba | |
+46 |
| Joao Pessoa | |
+82 |
| Recife | |
+78 |
| Rio de Janeiro | |
+72 |
| Salvador | |
+80 |
| Santos | |
+68 |
| Sao Jose de Ribamar | |
+84 |
| Sao Paulo | |
+64 |
| Sao Sebastiao | |
+66 |
| Xangri-la | |
+56 |
Countries:
NAME
POPULARITY
24 Hours Weather Forecast
Rio das Ostras
Local time: 01:16
19 oct, monday
| 0300 |  |
72°F | N 9 mph |
| 0600 | |
72°F | NE 12 mph |
| 0900 | |
72°F | N 16 mph |
| 1200 | |
72°F | NE 12 mph |
| 1500 | |
70°F | NE 13 mph |
| 1800 |  |
72°F | NE 11 mph |
| 2100 | |
70°F | NE 7 mph |
20 oct, tuesday
| 0000 | |
68°F | NE 4 mph |