30.12
tue
tue
Day
84°F
W 12 mph
Precip.
100%
100%
Night
73°F
SW 7 mph
Precip.
0%
0%
31.12
wed
wed
Day
90°F
SW 11 mph
Precip.
0%
0%
Night
72°F
S 7 mph
Precip.
62%
62%
01.01
thu
thu
Day
88°F
S 9 mph
Precip.
0%
0%
Night
73°F
S 9 mph
Precip.
62%
62%
02.01
fri
fri
Day
82°F
NW 6 mph
Precip.
100%
100%
Night
73°F
S 5 mph
Precip.
0%
0%
03.01
sat
sat
Day
79°F
N 9 mph
Precip.
100%
100%
Night
72°F
NE 11 mph
Precip.
100%
100%
04.01
sun
sun
Day
73°F
N 8 mph
Precip.
100%
100%
Night
72°F
NE 2 mph
Precip.
100%
100%
05.01
mon
mon
Day
73°F
W 2 mph
Precip.
100%
100%
Night
68°F
NE 7 mph
Precip.
100%
100%
06.01
tue
tue
Day
70°F
SW 7 mph
Precip.
100%
100%
Night
70°F
SW 9 mph
Precip.
0%
0%
07.01
wed
wed
Day
81°F
SW 5 mph
Precip.
0%
0%
Night
72°F
SW 11 mph
Precip.
0%
0%
08.01
thu
thu
Day
84°F
SW 12 mph
Precip.
0%
0%
Night
72°F
SW 12 mph
Precip.
0%
0%
09.01
fri
fri
Day
84°F
SW 14 mph
Precip.
0%
0%
Night
72°F
SW 12 mph
Precip.
0%
0%
10.01
sat
sat
Day
86°F
SW 14 mph
Precip.
0%
0%
Night
73°F
SW 12 mph
Precip.
0%
0%
11.01
sun
sun
Day
88°F
SW 7 mph
Precip.
0%
0%
Night
73°F
S 7 mph
Precip.
100%
100%
12.01
mon
mon
Day
90°F
S 9 mph
Precip.
0%
0%
Night
75°F
S 4 mph
Precip.
100%
100%
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 December, °F
Show year:
2025
2024
2023
The average sea water temperature in December of 2025 was 76.2°F. The highest and lowest sea temperatures during the month were 77.9°F and 73.6°F.
Sea water temperature in January, °F
Show year:
2025
2024
2023
The average sea water temperature in January of 2025 was 77.9°F. The highest and lowest sea temperatures during the month were 81.1°F and 75.9°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: 17:43
December 30, tuesday
1800
75°F
SW
6 mph
6 mph
2100
75°F
SW
6 mph
6 mph
December 31, wednesday
0000
73°F
SW
7 mph
7 mph
0300
75°F
SW
6 mph
6 mph
0600
77°F
SW
9 mph
9 mph
0900
86°F
SW
10 mph
10 mph
1200
90°F
SW
11 mph
11 mph
1500
88°F
SW
12 mph
12 mph
