Measurements:
°C
°F
CURRENT WEATHER
10:26
Rio das Ostras
86°F
SW 6 mph
Feels like: 90°F
Precip: 0%
World Resorts Brazil Rio das Ostras Weather

Rio das Ostras Sea Water Temperature

Current Sea Water Temperature:
+81.6°F
Maximum Sea Water Temperature in March: 84.6°F
Minimum Sea Water Temperature in March: 76.0°F
Average water temperature in March: 80.7°F
detailed information

Sea Water Temperature for the Last 10 Days:

March 18 81.6°F March 13 81.8°F
March 17 81.6°F March 12 81.8°F
March 16 81.0°F March 11 82.0°F
March 15 81.4°F March 10 83.6°F
March 14 82.0°F March 09 83.8°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, April and February.

Average Water Temperature by Month, °F

Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
0
13
26
39
52
65
78
91
104
78.5
77.1
75.3
73.4
73.3
74.3
75.9
77.6
80.1
80.7
80
79.4

Sea Water Temperature in March

Select Year: 2025 2024 2023
1
3
5
7
9
11
13
15
17
19
21
23
25
27
29
31
73
76
79
82
85
88
91

The average sea surface temperature in March 2025 for Rio das Ostras was 81.5°F. The maximum and minimum values were 78.8°F and 83.8°F respectively.

Sea Water Temperature in April

Select Year: 2024 2023 2022
1
3
5
7
9
11
13
15
17
19
21
23
25
27
29
31
72
75
78
81
84
87

The average sea surface temperature in April 2024 for Rio das Ostras was 79.9°F. The maximum and minimum values were 76.2°F and 82.8°F respectively.

Sea Water Temperature in February

Select Year: 2025 2024 2023
1
3
5
7
9
11
13
15
17
19
21
23
25
27
29
31
72
75
78
81
84
87
90

The average sea surface temperature in February 2025 for Rio das Ostras was 77.7°F. The maximum and minimum values were 76.0°F and 79.8°F respectively.

Best Time to Visit Rio das Ostras
The most sunny months:
July 20 days
June 17 days
August 16 days
The most warm months:
March 86.3 °F
February 86.0 °F
January 85.1 °F
Warmest sea temperature:
March 80.6 °F
April 80.1 °F
February 80.0 °F
The most cold months:
July 78.6 °F
August 79.1 °F
June 79.4 °F
The most rainy months:
November 6 days
January 6 days
February 5 days
The most windy months:
September 10 mph
August 9 mph
October 8 mph
more details

Rio das Ostras on the Weather Map

Brazil Resorts:
NAME
F°
Angra dos Reis +84
Buzios +84
Florianopolis +82
Fortaleza +74
Itajai +76
Joao Pessoa +88
Natal +86
Recife +88
Rio de Janeiro +88
Rio Grande +78
Salvador +84
Santos +82
Sao Paulo +82
Sao Sebastiao +80
Ubatuba +80
all resorts
24 Hours Weather Forecast
Rio das Ostras
Local time: 10:26
18 mar, tuesday
1200 88°F
W
11 mph
1500 82°F
W
7 mph
1800 78°F
SW
7 mph
2100 76°F
SW
7 mph
19 mar, wednesday
0000 74°F
S
7 mph
0300 74°F
S
7 mph
0600 76°F
S
7 mph
0900 82°F
S
3 mph