30.07
thu
thu
Day

79°F
N 11 mph
Precip.
5%
5%
Night

68°F
NE 3 mph
Precip.
29%
29%
31.07
fri
fri
Day

73°F
NW 7 mph
Precip.
19%
19%
Night

64°F
SW 8 mph
Precip.
14%
14%
01.08
sat
sat
Day

79°F
SW 13 mph
Precip.
2%
2%
Night

64°F
SW 14 mph
Precip.
12%
12%
02.08
sun
sun
Day

82°F
SW 11 mph
Precip.
2%
2%
Night

66°F
S 11 mph
Precip.
20%
20%
03.08
mon
mon
Day

82°F
SW 11 mph
Precip.
1%
1%
Night

68°F
SW 14 mph
Precip.
15%
15%
04.08
tue
tue
Day

84°F
SW 9 mph
Precip.
1%
1%
Night

68°F
SW 10 mph
Precip.
13%
13%
05.08
wed
wed
Day

84°F
SW 9 mph
Precip.
1%
1%
Night

66°F
NE 7 mph
Precip.
16%
16%
06.08
thu
thu
Day

81°F
W 6 mph
Precip.
3%
3%
Night

70°F
SW 11 mph
Precip.
9%
9%
07.08
fri
fri
Day

77°F
N 10 mph
Precip.
14%
14%
Night

68°F
SW 9 mph
Precip.
18%
18%
08.08
sat
sat
Day

88°F
SW 11 mph
Precip.
1%
1%
Night

70°F
NE 9 mph
Precip.
13%
13%
09.08
sun
sun
Day

79°F
NW 7 mph
Precip.
5%
5%
Night

70°F
E 3 mph
Precip.
37%
37%
10.08
mon
mon
Day

73°F
NE 13 mph
Precip.
61%
61%
Night

68°F
NW 6 mph
Precip.
56%
56%
11.08
tue
tue
Day

70°F
N 7 mph
Precip.
67%
67%
Night

66°F
N 13 mph
Precip.
75%
75%
sea water
temperature
temperature
| Rio das Ostras |
monthly
weather
weather
| Rio das Ostras |
current
weather
weather
| Rio das Ostras |
7 days
forecast
forecast
| Rio das Ostras |
Sea water temperature in July, °F
Show year:
2026
2025
2024
The average sea water temperature in July of 2026 was 72.5°F. The highest and lowest sea temperatures during the month were 74.1°F and 71.4°F.
Sea water temperature in August, °F
Show year:
2025
2024
2023
The average sea water temperature in August of 2025 was 70.6°F. The highest and lowest sea temperatures during the month were 72.3°F and 70.0°F.
Air temperature in Rio das Ostras, °F
Precipitation total in Rio das Ostras, in.
* Charts above show average data for the last 3 years.
Best time for vacation in Rio das Ostras
Rio das Ostras on a weather map
Places in Brazil:
Name
°F
24 Hours Forecast
Rio das Ostras
Local time: 01:44
July 30, thursday
0300

70°F
NE
4 mph
4 mph
0600

68°F
NE
9 mph
9 mph
0900

75°F
NE
7 mph
7 mph
1200

79°F
N
11 mph
11 mph
1500

77°F
NW
11 mph
11 mph
1800

70°F
N
8 mph
8 mph
2100

68°F
NE
5 mph
5 mph
July 31, friday
0000

68°F
NE
3 mph
3 mph



























