Current Sea Water Temperature:
+64.6°F
| Maximum Sea Water Temperature in September: | 71.2°F |
| Minimum Sea Water Temperature in September: | 56.4°F |
| Average water temperature in September: | 62.5°F |
| detailed information | |
Sea Water Temperature for the Last 10 Days:
| September 28 | 64.6°F | September 23 | 63.4°F |
| September 27 | 65.2°F | September 22 | 65.4°F |
| September 26 | 62.6°F | September 21 | 63.8°F |
| September 25 | 62.8°F | September 20 | 61.8°F |
| September 24 | 60.8°F | September 19 | 62.2°F |
When is the Warmest Sea for Rio Grande?
According to our data for the last three years for Rio Grande 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 Rio Grande was 82.3°F. The maximum and minimum values were 78.6°F and 85.4°F respectively.
Sea Water Temperature in January
The average sea surface temperature in January 2026 for Rio Grande was 81.2°F. The maximum and minimum values were 76.2°F and 85.8°F respectively.
Sea Water Temperature in March
The average sea surface temperature in March 2026 for Rio Grande was 78.7°F. The maximum and minimum values were 74.8°F and 82.2°F respectively.
Brazil Resorts:
NAME
F°
| Balneario Camboriu |  |
+68 |
| Buzios |  |
+76 |
| Duque de Caxias | |
+78 |
| Florianopolis |  |
+68 |
| Fortaleza |  |
+84 |
| Joao Pessoa | |
+82 |
| Natal | |
+82 |
| Recife | |
+78 |
| Rio de Janeiro | |
+76 |
| Salvador | |
+82 |
| Santos | |
+74 |
| Sao Jose de Ribamar | |
+84 |
| Sao Paulo |  |
+70 |
| Sao Sebastiao | |
+70 |
| Xangri-la | |
+68 |
Countries:
NAME
POPULARITY
24 Hours Weather Forecast
Rio Grande
Local time: 18:51
28 sep, monday
| 2100 |  |
64°F | SW 2 mph |
29 sep, tuesday
| 0000 |  |
64°F | SW 11 mph |
| 0300 |  |
64°F | SW 12 mph |
| 0600 | |
64°F | W 8 mph |
| 0900 |  |
64°F | S 7 mph |
| 1200 | |
66°F | S 8 mph |
| 1500 | |
68°F | E 6 mph |
| 1800 |  |
70°F | NE 6 mph |