30.12
tue
tue
Day
86°F
NW 12 mph
Precip.
100%
100%
Night
75°F
SE 1 mph
Precip.
100%
100%
31.12
wed
wed
Day
88°F
N 9 mph
Precip.
100%
100%
Night
75°F
S 4 mph
Precip.
0%
0%
01.01
thu
thu
Day
88°F
N 11 mph
Precip.
0%
0%
Night
77°F
S 4 mph
Precip.
100%
100%
02.01
fri
fri
Day
86°F
N 9 mph
Precip.
100%
100%
Night
75°F
SE 3 mph
Precip.
0%
0%
03.01
sat
sat
Day
77°F
NE 11 mph
Precip.
100%
100%
Night
73°F
N 7 mph
Precip.
100%
100%
04.01
sun
sun
Day
75°F
N 8 mph
Precip.
100%
100%
Night
72°F
W 4 mph
Precip.
100%
100%
05.01
mon
mon
Day
73°F
W 5 mph
Precip.
83%
83%
Night
70°F
SW 5 mph
Precip.
100%
100%
Sea water temperature in December, °F
Show year:
2025
2024
2023
The average sea water temperature in December of 2025 was 78.2°F. The highest and lowest sea temperatures during the month were 80.8°F and 76.1°F.
Sea water temperature in January, °F
Show year:
2025
2024
2023
The average sea water temperature in January of 2025 was 79.0°F. The highest and lowest sea temperatures during the month were 82.9°F and 75.4°F.
Air temperature in Niteroi, °F
Precipitation total in Niteroi, in.
* Charts above show average data for the last 3 years.
Best time for vacation in Niteroi
Niteroi on a weather map
Places in Brazil:
Name
°F
24 Hours Forecast
Niteroi
Local time: 19:30
December 30, tuesday
2100
75°F
SE
3 mph
3 mph
December 31, wednesday
0000
75°F
SE
1 mph
1 mph
0300
73°F
SW
4 mph
4 mph
0600
77°F
SW
2 mph
2 mph
0900
84°F
N
3 mph
3 mph
1200
88°F
N
9 mph
9 mph
1500
77°F
N
6 mph
6 mph
1800
75°F
SE
2 mph
2 mph
