Current Sea Water Temperature:
+76.8°F
| Maximum Sea Water Temperature in August: | 79.0°F |
| Minimum Sea Water Temperature in August: | 71.4°F |
| Average water temperature in August: | 75.1°F |
| detailed information | |
Sea Water Temperature for the Last 10 Days:
| August 18 | 76.8°F | August 13 | 76.2°F |
| August 17 | 75.8°F | August 12 | 76.6°F |
| August 16 | 75.4°F | August 11 | 77.2°F |
| August 15 | 76.2°F | August 10 | 77.4°F |
| August 14 | 75.2°F | August 09 | 77.8°F |
When is the Warmest Sea for Niteroi?
According to our data for the last three years for Niteroi 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 Niteroi was 85.9°F. The maximum and minimum values were 82.0°F and 90.0°F respectively.
Sea Water Temperature in January
The average sea surface temperature in January 2026 for Niteroi was 83.9°F. The maximum and minimum values were 80.8°F and 86.0°F respectively.
Sea Water Temperature in March
The average sea surface temperature in March 2026 for Niteroi was 82.3°F. The maximum and minimum values were 78.8°F and 86.4°F respectively.
Brazil Resorts:
NAME
F°
| Angra dos Reis |  |
+78 |
| Buzios | |
+74 |
| Florianopolis | |
+70 |
| Fortaleza | |
+82 |
| Ilha de Itamaraca |  |
+82 |
| Joao Pessoa | |
+82 |
| Natal |  |
+84 |
| Recife | |
+82 |
| Rio de Janeiro | |
+76 |
| Salvador | |
+80 |
| Santos | |
+76 |
| Sao Jose de Ribamar | |
+86 |
| Sao Paulo | |
+72 |
| Sao Sebastiao | |
+82 |
| Xangri-la |  |
+70 |
Countries:
NAME
POPULARITY
24 Hours Weather Forecast
Niteroi
Local time: 08:40
18 aug, tuesday
| 0900 |  |
74°F | S 6 mph |
| 1200 | |
80°F | NW 4 mph |
| 1500 | |
78°F | NW 11 mph |
| 1800 |  |
76°F | W 11 mph |
| 2100 | |
74°F | SW 7 mph |
19 aug, wednesday
| 0000 | |
74°F | S 5 mph |
| 0300 | |
72°F | S 6 mph |
| 0600 |  |
72°F | S 8 mph |