23.12
tue
tue
Day
86°F
SW 15 mph
Precip.
0%
0%
Night
72°F
SW 13 mph
Precip.
0%
0%
24.12
wed
wed
Day
88°F
W 10 mph
Precip.
0%
0%
Night
72°F
SW 10 mph
Precip.
0%
0%
25.12
thu
thu
Day
88°F
W 9 mph
Precip.
0%
0%
Night
72°F
SW 9 mph
Precip.
0%
0%
26.12
fri
fri
Day
86°F
NW 10 mph
Precip.
0%
0%
Night
73°F
E 1 mph
Precip.
0%
0%
27.12
sat
sat
Day
84°F
W 12 mph
Precip.
0%
0%
Night
72°F
SW 11 mph
Precip.
0%
0%
28.12
sun
sun
Day
90°F
W 9 mph
Precip.
0%
0%
Night
73°F
SW 9 mph
Precip.
0%
0%
29.12
mon
mon
Day
84°F
NW 11 mph
Precip.
77%
77%
Night
73°F
S 4 mph
Precip.
0%
0%
30.12
tue
tue
Day
82°F
W 8 mph
Precip.
0%
0%
Night
73°F
SW 6 mph
Precip.
0%
0%
31.12
wed
wed
Day
82°F
SW 9 mph
Precip.
20%
20%
Night
73°F
SW 13 mph
Precip.
0%
0%
01.01
thu
thu
Day
88°F
W 6 mph
Precip.
0%
0%
Night
73°F
SW 11 mph
Precip.
42%
42%
02.01
fri
fri
Day
90°F
S 9 mph
Precip.
0%
0%
Night
75°F
SW 11 mph
Precip.
0%
0%
03.01
sat
sat
Day
86°F
SE 11 mph
Precip.
100%
100%
Night
73°F
E 4 mph
Precip.
100%
100%
04.01
sun
sun
Day
79°F
N 3 mph
Precip.
100%
100%
Night
73°F
S 4 mph
Precip.
100%
100%
05.01
mon
mon
Day
84°F
W 4 mph
Precip.
100%
100%
Night
77°F
SW 6 mph
Precip.
25%
25%
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 76.6°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: 21:09
December 24, wednesday
0000
72°F
SW
13 mph
13 mph
0300
72°F
SW
14 mph
14 mph
0600
75°F
SW
12 mph
12 mph
0900
86°F
SW
9 mph
9 mph
1200
88°F
W
10 mph
10 mph
1500
82°F
W
6 mph
6 mph
1800
75°F
SW
10 mph
10 mph
2100
73°F
SW
11 mph
11 mph
