Measurements:
°C
°F
CURRENT WEATHER
08:40
Niteroi
74°F
S 6 mph
Feels like: 74°F
Precip: 6%
World Resorts Brazil Niteroi Weather

14 Day Weather Forecast

08.18
tue
DAY
80°F
NW 4 mph
precip
4%
NIGHT
74°F
S 5 mph
precip
9%
08.19
wed
DAY
78°F
NW 7 mph
precip
5%
NIGHT
74°F
S 6 mph
precip
8%
08.20
thu
DAY
80°F
NW 6 mph
precip
4%
NIGHT
74°F
SW 6 mph
precip
5%
08.21
fri
DAY
78°F
NE 15 mph
precip
5%
NIGHT
70°F
NE 9 mph
precip
62%
08.22
sat
DAY
70°F
NE 11 mph
precip
40%
NIGHT
70°F
N 9 mph
precip
24%
08.23
sun
DAY
68°F
W 7 mph
precip
25%
NIGHT
68°F
SW 4 mph
precip
41%
08.24
mon
DAY
68°F
N 10 mph
precip
68%
NIGHT
66°F
NW 11 mph
precip
42%
08.25
tue
DAY
68°F
W 11 mph
precip
29%
NIGHT
66°F
SW 12 mph
precip
26%
08.26
wed
DAY
72°F
N 4 mph
precip
19%
NIGHT
72°F
S 6 mph
precip
24%
08.27
thu
DAY
78°F
NW 5 mph
precip
17%
NIGHT
74°F
S 6 mph
precip
10%
08.28
fri
DAY
82°F
N 2 mph
precip
7%
NIGHT
76°F
S 7 mph
precip
22%
08.29
sat
DAY
86°F
SE 2 mph
precip
4%
NIGHT
80°F
S 7 mph
precip
17%
08.30
sun
DAY
88°F
W 2 mph
precip
3%
NIGHT
76°F
E 9 mph
precip
8%
08.31
mon
DAY
76°F
N 9 mph
precip
8%
NIGHT
74°F
E 17 mph
precip
31%

Niteroi Sea Water Temperature in August, °F

Select Year: 2026 2025 2024

The average sea surface temperature in August 2026 for Niteroi was 76.4°F. The maximum and minimum values were 75.0°F and 79.0°F respectively.

Niteroi on the Weather Map

Best Time to Visit Niteroi
The most sunny months:
August 19 days
July 19 days
June 16 days
The most warm months:
February 88.5 °F
March 88.0 °F
January 87.6 °F
Warmest sea temperature:
February 84.0 °F
January 83.4 °F
March 83.0 °F
The most cold months:
July 79.5 °F
June 79.7 °F
August 80.3 °F
The most rainy months:
February 5 days
December 5 days
January 5 days
The most windy months:
October 6 mph
September 6 mph
August 6 mph
more details
24 Hours Weather Forecast
Niteroi
Local time: 08:40
18 aug, tuesday
0900 74°F
S
6 mph
1200 80°F
NW
4 mph
1500 78°F
NW
11 mph
1800 76°F
W
11 mph
2100 74°F
SW
7 mph
19 aug, wednesday
0000 74°F
S
5 mph
0300 72°F
S
6 mph
0600 72°F
S
8 mph