Measurements:
°C
°F
CURRENT WEATHER
01:02
Niteroi
74°F
S 5 mph
Feels like: 74°F
Precip: 5%
World Resorts Brazil Niteroi Weather

7 Day Weather Forecast

07.29
wed
DAY
90°F
E 2 mph
precip
1%
NIGHT
74°F
S 6 mph
precip
6%
07.30
thu
DAY
82°F
N 6 mph
precip
4%
NIGHT
72°F
SW 5 mph
precip
28%
07.31
fri
DAY
80°F
NW 10 mph
precip
12%
NIGHT
70°F
W 7 mph
precip
16%
08.01
sat
DAY
86°F
NW 3 mph
precip
1%
NIGHT
72°F
SW 5 mph
precip
5%
08.02
sun
DAY
88°F
W 2 mph
precip
1%
NIGHT
72°F
S 2 mph
precip
5%
08.03
mon
DAY
82°F
NW 6 mph
precip
2%
NIGHT
70°F
SW 4 mph
precip
8%
08.04
tue
DAY
86°F
NW 4 mph
precip
1%
NIGHT
74°F
SW 5 mph
precip
4%

Niteroi Sea Water Temperature in July, °F

Select Year: 2026 2025 2024

The average sea surface temperature in July 2026 for Niteroi was 22.4°F. The maximum and minimum values were 21.6°F and 23.5°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 79.4 °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