Measurements:
°C
°F
CURRENT WEATHER
17:23
Niteroi
70°F
NW 6 mph
Feels like: 72°F
Precip: 100%
World Resorts Brazil Niteroi Weather

14 Day Weather Forecast

05.22
fri
DAY
72°F
N 2 mph
precip
100%
NIGHT
70°F
SW 6 mph
precip
0%
05.23
sat
DAY
78°F
W 2 mph
precip
0%
NIGHT
72°F
SE 2 mph
precip
82%
05.24
sun
DAY
78°F
N 3 mph
precip
0%
NIGHT
72°F
NE 4 mph
precip
65%
05.25
mon
DAY
78°F
NE 3 mph
precip
0%
NIGHT
74°F
E 1 mph
precip
67%
05.26
tue
DAY
82°F
W 3 mph
precip
0%
NIGHT
76°F
E 4 mph
precip
76%
05.27
wed
DAY
76°F
NE 12 mph
precip
100%
NIGHT
70°F
E 10 mph
precip
100%
05.28
thu
DAY
74°F
NE 9 mph
precip
100%
NIGHT
68°F
N 0 mph
precip
66%
05.29
fri
DAY
76°F
NW 2 mph
precip
0%
NIGHT
66°F
SW 5 mph
precip
0%
05.30
sat
DAY
76°F
N 3 mph
precip
0%
NIGHT
66°F
S 4 mph
precip
0%
05.31
sun
DAY
72°F
NE 10 mph
precip
100%
NIGHT
68°F
SE 4 mph
precip
80%
06.01
mon
DAY
72°F
NE 4 mph
precip
100%
NIGHT
66°F
NE 7 mph
precip
100%
06.02
tue
DAY
70°F
E 5 mph
precip
100%
NIGHT
64°F
SW 4 mph
precip
64%
06.03
wed
DAY
74°F
NW 2 mph
precip
0%
NIGHT
64°F
SW 5 mph
precip
0%
06.04
thu
DAY
76°F
NW 2 mph
precip
0%
NIGHT
68°F
SW 6 mph
precip
0%

Niteroi Sea Water Temperature in May, °F

Select Year: 2026 2025 2024

The average sea surface temperature in May 2026 for Niteroi was 78.3°F. The maximum and minimum values were 76.8°F and 80.0°F respectively.

Niteroi on the Weather Map

Best Time to Visit Niteroi
The most sunny months:
July 20 days
August 19 days
May 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 79.6 °F
June 80.2 °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: 17:23
22 may, friday
1800 70°F
NW
6 mph
2100 70°F
W
5 mph
23 may, saturday
0000 70°F
SW
6 mph
0300 68°F
SW
5 mph
0600 68°F
SW
4 mph
0900 72°F
SW
3 mph
1200 78°F
W
2 mph
1500 80°F
NW
4 mph