Niteroi (Região Geográfica Imediata de Tabatinga) — Weather
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Sign InLive· Clear within 100 kmJust updated
26°C79°F· Clear · 16% cloud cover
Feels like 31°C88°F · Low 26°C78°F · High 26°C79°F
Wind
2 km/h1 m/s1 mph from SW
Humidity
91%
Pressure
1011 hPa29.86 inHgstable
UV Index
0.0Low(night)
Storm — rain + heat
Right now in Niteroi: 26°C79°F, clear skies.
⛈️ Extended wet spell, moderate-intensity Friday–Monday, with rain and embedded thunderstorms. Total ~13.6 mm. Peak Monday (6.6 mm). Below the monthly normal (116 mm/month).
Hourly forecast
Detailed forecast for the next 60 hours
TemperaturePrecipitationWind
CAPE (J/kg)Instability Threshold
Now
26°C79°F
21
91
23:00
26°C78°F
21
91
00:00
25°C78°F
21
92
01:00
25°C77°F
21
93
02:00
25°C77°F
11
94
03:00
25°C77°F
21
95
04:00
25°C76°F
21
95
05:00
25°C76°F
32
96
06:00
25°C76°F
42
96
07:00
24°C76°F
21
96
08:00
25°C78°F
21
95
09:00
26°C80°F
21
91
10:00
28°C82°F
32
84
11:00
29°C84°F
42
80
12:00
29°C85°F
0.20.01
32
75
13:00
30°C86°F
42
72
14:00
31°C88°F
42
67
15:00
32°C89°F
42
63
16:00
32°C89°F
53
59
17:00
31°C88°F
53
61
18:00
31°C87°F
43
64
19:00
29°C85°F
32
73
20:00
28°C83°F
21
78
21:00
28°C83°F
32
79
22:00
28°C82°F
32
81
23:00
27°C80°F
43
84
00:00
26°C79°F
0.50.02
21
86
03:00
25°C78°F
42
90
06:00
25°C77°F
32
94
09:00
27°C80°F
43
88
12:00
30°C86°F
0.10.01
53
74
15:00
31°C87°F
0.10.00
53
69
18:00
29°C84°F
0.10.01
32
74
21:00
27°C80°F
0.10.01
21
87
00:00
26°C78°F
42
94
03:00
25°C77°F
53
97
06:00
25°C77°F
53
97
09:00
26°C78°F
0.50.02
74
92
mminkm/hm/smphHumidity %
Daily Forecast
TodaySW 2 km/h1 m/s1 mph91%7hTodayClear91%SW 2 km/h1 m/s1 mph7h
Today
SW 2 km/h1 m/s1 mph91%7h
Today
Clear
91%
SW 2 km/h1 m/s1 mph
7h
Today — Hourly Forecast
Now
26°C79°F
211
23:00
26°C78°F
211
06:4811.9h18:42
TomorrowSW 5 km/h1 m/s3 mph(gusts 27817)82%UV 14hTomorrowLight rain82%SW 5 km/h1 m/s3 mph (gusts 27817)UV 14h
Tomorrow
SW 5 km/h1 m/s3 mph(gusts 27817)82%UV 14h
Tomorrow
Light rain
82%
SW 5 km/h1 m/s3 mph (gusts 27817)
UV 1
4h
Tomorrow — Hourly Forecast
00:00
25°C78°F
211
01:00
25°C77°F
201
02:00
25°C77°F
101
03:00
25°C77°F
211
04:00
25°C76°F
211
05:00
25°C76°F
312
06:00
25°C76°F
412
07:00
24°C76°F
211
08:00
25°C78°F
201
09:00
26°C80°F
211
10:00
28°C82°F
312
11:00
29°C84°F
412
12:00
29°C85°F
312
13:00
30°C86°F
412
14:00
31°C88°F
412
15:00
32°C89°F
412
16:00
32°C89°F
513
17:00
31°C88°F
513
18:00
31°C87°F
413
19:00
29°C85°F
312
20:00
28°C83°F
211
21:00
28°C83°F
312
22:00
28°C82°F
312
23:00
27°C80°F
413
06:4811.9h18:43
Friday1.8 mm0.07 inNW 6 km/h2 m/s3 mph(gusts 25716)83%UV 14hFridayLight rain83%NW 6 km/h2 m/s3 mph (gusts 25716)1.8 mm0.07 inUV 14h
Friday
1.8 mm0.07 inNW 6 km/h2 m/s3 mph(gusts 25716)83%UV 14h
Friday
Light rain
83%
NW 6 km/h2 m/s3 mph (gusts 25716)
1.8 mm0.07 in
UV 1
4h
Friday — Forecast Overview
00:00
26°C79°F
211
03:00
25°C78°F
412
06:00
25°C77°F
312
09:00
27°C80°F
413
12:00
30°C86°F
513
15:00
31°C87°F
513
18:00
29°C84°F
312
21:00
27°C80°F
211
06:4811.9h18:43
Saturday3.2 mm0.13 inW 8 km/h2 m/s5 mph(gusts 21613)86%UV 13hSaturdayLight rain86%W 8 km/h2 m/s5 mph (gusts 21613)3.2 mm0.13 inUV 13h
Saturday
3.2 mm0.13 inW 8 km/h2 m/s5 mph(gusts 21613)86%UV 13h
Saturday
Light rain
86%
W 8 km/h2 m/s5 mph (gusts 21613)
3.2 mm0.13 in
UV 1
3h
Saturday — Forecast Overview
00:00
26°C78°F
412
03:00
25°C77°F
513
06:00
25°C77°F
513
09:00
26°C78°F
724
12:00
29°C84°F
623
15:00
30°C86°F
513
18:00
29°C84°F
312
21:00
25°C77°F
312
06:4811.9h18:43
Sunday2.0 mm0.08 inNW 6 km/h2 m/s4 mph(gusts 23615)82%UV 17hSundayLight rain82%NW 6 km/h2 m/s4 mph (gusts 23615)2.0 mm0.08 inUV 17h
Sunday
2.0 mm0.08 inNW 6 km/h2 m/s4 mph(gusts 23615)82%UV 17h
Sunday
Light rain
82%
NW 6 km/h2 m/s4 mph (gusts 23615)
2.0 mm0.08 in
UV 1
7h
Sunday — Forecast Overview
00:00
23°C74°F
412
03:00
22°C71°F
624
06:00
22°C72°F
312
09:00
24°C75°F
312
12:00
31°C88°F
513
15:00
35°C94°F
412
18:00
28°C82°F
413
21:00
24°C75°F
312
06:4811.9h18:43
Monday6.6 mm0.26 in· heavyN 7 km/h2 m/s4 mph(gusts 21613)88%UV 18hMondayLight rain88%N 7 km/h2 m/s4 mph (gusts 21613)6.6 mm0.26 inUV 18h
Monday
6.6 mm0.26 in· heavyN 7 km/h2 m/s4 mph(gusts 21613)88%UV 18h
Monday
Light rain
88%
N 7 km/h2 m/s4 mph (gusts 21613)
6.6 mm0.26 in
UV 1
8h
Monday — Forecast Overview
00:00
22°C72°F
312
03:00
22°C71°F
412
06:00
22°C71°F
412
09:00
23°C74°F
312
12:00
29°C83°F
624
17:00
30°C86°F
101
06:4811.9h18:43
TuesdayN 6 km/h2 m/s4 mph(gusts 19512)76%UV 18hTuesdayPartly cloudy76%N 6 km/h2 m/s4 mph (gusts 19512)UV 18h
Tuesday
N 6 km/h2 m/s4 mph(gusts 19512)76%UV 18h
Tuesday
Partly cloudy
76%
N 6 km/h2 m/s4 mph (gusts 19512)
UV 1
8h
Night26°C78°F
26°C78°FMorning29°C85°F
29°C85°FAfternoon29°C85°F
29°C85°FEvening30°C85°F
30°C85°F06:4811.9h18:43
WednesdayNE 7 km/h2 m/s4 mph(gusts 20512)72%UV 18hWednesdayDrizzle72%NE 7 km/h2 m/s4 mph (gusts 20512)UV 18h
Wednesday
NE 7 km/h2 m/s4 mph(gusts 20512)72%UV 18h
Wednesday
Drizzle
72%
NE 7 km/h2 m/s4 mph (gusts 20512)
UV 1
8h
Night27°C80°F
27°C80°FMorning30°C86°F
30°C86°FAfternoon30°C86°F
30°C86°FEvening30°C86°F
30°C86°F06:4811.9h18:43
Extended Forecast (GFS)Thursday1.3 mm0.05 inNE 7 km/h2 m/s4 mph(gusts 18511)77%12hThursdayDrizzle77%NE 7 km/h2 m/s4 mph (gusts 18511)1.3 mm0.05 in12h
Thursday
1.3 mm0.05 inNE 7 km/h2 m/s4 mph(gusts 18511)77%12h
Thursday
Drizzle
77%
NE 7 km/h2 m/s4 mph (gusts 18511)
1.3 mm0.05 in
12h
Night24°C74°F
24°C74°FMorning33°C92°F
33°C92°FAfternoon33°C92°F
33°C92°FEvening24°C76°F
24°C76°F06:4811.9h18:43
Friday0.7 mm0.03 inN 4 km/h1 m/s3 mph76%12hFridayDrizzle76%N 4 km/h1 m/s3 mph0.7 mm0.03 in12h
Friday
0.7 mm0.03 inN 4 km/h1 m/s3 mph76%12h
Friday
Drizzle
76%
N 4 km/h1 m/s3 mph
0.7 mm0.03 in
12h
Night22°C72°F
22°C72°FMorning32°C90°F
32°C90°FAfternoon32°C90°F
32°C90°FEvening26°C79°F
26°C79°F06:4811.9h18:43
Saturday30.6 mm1.20 in· heavyNE 12 km/h3 m/s7 mph(gusts 23614)84%11hSaturdayHeavy rain84%NE 12 km/h3 m/s7 mph (gusts 23614)30.6 mm1.20 in11h
Saturday
30.6 mm1.20 in· heavyNE 12 km/h3 m/s7 mph(gusts 23614)84%11h
Saturday
Heavy rain
84%
NE 12 km/h3 m/s7 mph (gusts 23614)
30.6 mm1.20 in
11h
Night23°C74°F
23°C74°FMorning32°C90°F
32°C90°FAfternoon32°C90°F
32°C90°FEvening22°C72°F
22°C72°F06:4711.9h18:43
Sunday2.3 mm0.09 inNE 5 km/h2 m/s3 mph(gusts 17511)80%12hSundayDrizzle80%NE 5 km/h2 m/s3 mph (gusts 17511)2.3 mm0.09 in12h
Sunday
2.3 mm0.09 inNE 5 km/h2 m/s3 mph(gusts 17511)80%12h
Sunday
Drizzle
80%
NE 5 km/h2 m/s3 mph (gusts 17511)
2.3 mm0.09 in
12h
Night22°C71°F
22°C71°FMorning31°C89°F
31°C89°FAfternoon31°C89°F
31°C89°FEvening25°C77°F
25°C77°F06:4711.9h18:43
Monday0.7 mm0.03 inNE 5 km/h1 m/s3 mph(gusts 1348)73%12hMondayDrizzle73%NE 5 km/h1 m/s3 mph (gusts 1348)0.7 mm0.03 in12h
Monday
0.7 mm0.03 inNE 5 km/h1 m/s3 mph(gusts 1348)73%12h
Monday
Drizzle
73%
NE 5 km/h1 m/s3 mph (gusts 1348)
0.7 mm0.03 in
12h
Night22°C72°F
22°C72°FMorning31°C88°F
31°C88°FAfternoon31°C88°F
31°C88°FEvening27°C80°F
27°C80°F06:4711.9h18:43
TuesdaySE 6 km/h2 m/s4 mph(gusts 1137)74%12hTuesdayDrizzle74%SE 6 km/h2 m/s4 mph (gusts 1137)12h
Tuesday
SE 6 km/h2 m/s4 mph(gusts 1137)74%12h
Tuesday
Drizzle
74%
SE 6 km/h2 m/s4 mph (gusts 1137)
12h
Night23°C74°F
23°C74°FMorning30°C86°F
30°C86°FAfternoon30°C86°F
30°C86°FEvening26°C79°F
26°C79°F06:4711.9h18:43
Wednesday3.7 mm0.14 inNE 5 km/h1 m/s3 mph(gusts 1036)84%12hWednesdayLight rain84%NE 5 km/h1 m/s3 mph (gusts 1036)3.7 mm0.14 in12h
Wednesday
3.7 mm0.14 inNE 5 km/h1 m/s3 mph(gusts 1036)84%12h
Wednesday
Light rain
84%
NE 5 km/h1 m/s3 mph (gusts 1036)
3.7 mm0.14 in
12h
Night23°C74°F
23°C74°FMorning31°C87°F
31°C87°FAfternoon31°C87°F
31°C87°FEvening23°C73°F
23°C73°F06:4711.9h18:43
Thursday5.8 mm0.23 in· heavyNE 4 km/h1 m/s2 mph(gusts 724)84%11hThursdayLight rain84%NE 4 km/h1 m/s2 mph (gusts 724)5.8 mm0.23 in11h
Thursday
5.8 mm0.23 in· heavyNE 4 km/h1 m/s2 mph(gusts 724)84%11h
Thursday
Light rain
84%
NE 4 km/h1 m/s2 mph (gusts 724)
5.8 mm0.23 in
11h
Night22°C72°F
22°C72°FMorning31°C88°F
31°C88°FAfternoon31°C88°F
31°C88°FEvening25°C77°F
25°C77°F06:4711.9h18:43
Sunrise
06:48
Civil Dawn 06:18
Sunset
18:43
Civil Dusk 19:13
Today vs. seasonal normal
-4.0°C-7.1°F
Niteroi is located in Amazonas, Brazil. Elevation: 72m. Annual average temperature: 26.5°C. Annual precipitation: 2577mm.
Frequently Asked Questions
What is the weather like in Niteroi today?
Today in Niteroi, Brazil, the temperature is 26°C with Clear. The high is 26°C and the low is 26°C.
What is the 16-day forecast for Niteroi?
The 16-day forecast for Niteroi shows the warmest day is Sunday at 35°C, while the coolest night is Monday at 22°C. 14 day(s) have precipitation expected.
What time is sunrise and sunset in Niteroi?
In Niteroi, sunrise is at 06:48 and sunset is at 18:43. Day length is approximately 11h 54m.
How accurate is the weather forecast for Niteroi?
Our forecasts for Niteroi use the DWD ICON model, one of the world's most advanced weather prediction systems. Accuracy is typically 85-90% for 1-3 day forecasts. Niteroi has an annual average temperature of 26.5°C and receives 2577mm of precipitation per year.
Last updated: 07/22/2026, 10:00 PM
July climate in Niteroi
Normals for July: average 26°C (21–30°C), around 116 mm of rain across the month. About 0.8°C cooler than the annual average of 26.5°C.
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