Measurements:
°C
°F
Rio das Ostras
68°F
NE 9 mph
Feels like: 68°F
Precip: 6%
World Resorts Brazil Rio das Ostras Weather

Rio das Ostras Sea Water Temperature

Current Sea Water Temperature:
+75.6°F
Maximum Sea Water Temperature in June: 78.8°F
Minimum Sea Water Temperature in June: 72.0°F
Average water temperature in June: 75.6°F

Sea Water Temperature for the Last 10 Days:

June 18 75.6°F June 13 76.4°F
June 17 76.4°F June 12 75.6°F
June 16 76.4°F June 11 75.2°F
June 15 76.0°F June 10 75.8°F
June 14 75.6°F June 09 75.6°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

Select Year: 2026 2025 2024

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

Select Year: 2026 2025 2024

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

Select Year: 2026 2025 2024

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.

Best Time to Visit Rio das Ostras
The most sunny months:
July 20 days
June 18 days
August 16 days
The most warm months:
February 86.0 °F
March 85.7 °F
January 84.9 °F
Warmest sea temperature:
March 81.0 °F
February 80.2 °F
April 80.1 °F
The most cold months:
July 78.0 °F
August 78.7 °F
June 79.3 °F
The most rainy months:
January 7 days
February 5 days
November 5 days
The most windy months:
September 10 mph
August 9 mph
October 9 mph

Rio das Ostras on the Weather Map

24 Hours Weather Forecast
Rio das Ostras
Local time: 17:36
18 jun, thursday
1800 68°F
NE
9 mph
2100 64°F
E
6 mph
19 jun, friday
0000 62°F
E
5 mph
0300 62°F
E
4 mph
0600 60°F
SE
4 mph
0900 70°F
S
8 mph
1200 76°F
SW
11 mph
1500 78°F
SW
12 mph