Measurements:
°C
°F
Niteroi
84°F
NW 6 mph
Feels like: 90°F
Precip: 100%
World Resorts Brazil Niteroi Weather

Niteroi Sea Water Temperature

Current Sea Water Temperature:
+82.6°F
Maximum Sea Water Temperature in March: 87.0°F
Minimum Sea Water Temperature in March: 79.6°F
Average water temperature in March: 83.2°F

Sea Water Temperature for the Last 10 Days:

March 16 82.6°F March 11 82.4°F
March 15 82.8°F March 10 81.2°F
March 14 82.6°F March 09 81.0°F
March 13 82.6°F March 08 81.0°F
March 12 82.6°F March 07 80.0°F

When is the Warmest Sea for Niteroi?

According to our data for the last three years for Niteroi the highest average sea water temperature was in February, January and March.

Average Water Temperature by Month, °F

Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
0
14
28
42
56
70
84
98
112
80.4
78.2
77.8
77.1
75.3
74.6
76
77.8
80.5
83.2
83.6
83.3

Sea Water Temperature in February

Select Year: 2025 2024 2023
1
3
5
7
9
11
13
15
17
19
21
23
25
27
29
31
77
80
83
86
89
92
95

The average sea surface temperature in February 2025 for Niteroi was 84.3°F. The maximum and minimum values were 82.2°F and 85.8°F respectively.

Sea Water Temperature in January

Select Year: 2025 2024 2023
1
3
5
7
9
11
13
15
17
19
21
23
25
27
29
31
74
77
80
83
86
89
92

The average sea surface temperature in January 2025 for Niteroi was 82.2°F. The maximum and minimum values were 78.2°F and 86.6°F respectively.

Sea Water Temperature in March

Select Year: 2025 2024 2023
1
3
5
7
9
11
13
15
17
19
21
23
25
27
29
31
75
78
81
84
87
90
93

The average sea surface temperature in March 2025 for Niteroi was 82.0°F. The maximum and minimum values were 80.0°F and 83.8°F respectively.

Best Time to Visit Niteroi
The most sunny months:
July 20 days
August 19 days
September 17 days
The most warm months:
March 89.0 °F
February 88.8 °F
January 88.0 °F
Warmest sea temperature:
February 83.6 °F
March 83.3 °F
January 83.3 °F
The most cold months:
July 80.6 °F
June 80.7 °F
August 80.8 °F
The most rainy months:
December 6 days
February 5 days
January 5 days
The most windy months:
September 6 mph
October 6 mph
August 6 mph

Niteroi on the Weather Map

Brazil Resorts:
NAME
Angra dos Reis +78
Buzios +82
Florianopolis +82
Fortaleza +84
Itajai +80
Joao Pessoa +88
Natal +82
Recife +88
Rio de Janeiro +84
Rio Grande +78
Salvador +88
Santos +78
Sao Paulo +76
Sao Sebastiao +78
Ubatuba +78
24 Hours Weather Forecast
Niteroi
Local time: 12:49
16 mar, sunday
1500 82°F
NW
7 mph
1800 80°F
NW
4 mph
2100 80°F
W
2 mph
17 mar, monday
0000 78°F
SW
3 mph
0300 78°F
S
2 mph
0600 78°F
S
2 mph
0900 80°F
S
1 mph
1200 86°F
N
5 mph