25.10
sun
sun
Day
77°F
NE 7 mph
Precip.
60%
60%
Night
72°F
E 11 mph
Precip.
56%
56%
26.10
mon
mon
Day
72°F
NE 16 mph
Precip.
62%
62%
Night
68°F
NE 9 mph
Precip.
27%
27%
27.10
tue
tue
Day
72°F
NW 7 mph
Precip.
17%
17%
Night
68°F
W 9 mph
Precip.
23%
23%
28.10
wed
wed
Day
75°F
NW 7 mph
Precip.
16%
16%
Night
70°F
SW 5 mph
Precip.
25%
25%
29.10
thu
thu
Day
73°F
N 3 mph
Precip.
61%
61%
Night
70°F
SW 7 mph
Precip.
79%
79%
30.10
fri
fri
Day
73°F
W 3 mph
Precip.
65%
65%
Night
72°F
S 2 mph
Precip.
42%
42%
31.10
sat
sat
Day
77°F
N 3 mph
Precip.
17%
17%
Night
72°F
SW 1 mph
Precip.
28%
28%
Sea water temperature in October, °F
Show year:
2026
2025
2024
The average sea water temperature in October of 2026 was 75.5°F. The highest and lowest sea temperatures during the month were 77.5°F and 73.4°F.
Sea water temperature in November, °F
Show year:
2025
2024
2023
The average sea water temperature in November of 2025 was 73.1°F. The highest and lowest sea temperatures during the month were 76.1°F and 70.0°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: 13:41
October 25, sunday
1500
75°F
E
7 mph
7 mph
1800
72°F
SE
5 mph
5 mph
2100
72°F
NE
6 mph
6 mph
October 26, monday
0000
72°F
E
11 mph
11 mph
0300
72°F
NE
12 mph
12 mph
0600
70°F
NE
14 mph
14 mph
0900
70°F
NE
17 mph
17 mph
1200
72°F
NE
16 mph
16 mph
