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
mminkm/hm/smphHumidity %
Daily Forecast
TodaySW 2 km/h1 m/s1 mph91%7hToday91%SW 2 km/h1 m/s1 mph7h
Today
SW 2 km/h1 m/s1 mph91%7h
Today
91%
SW 2 km/h1 m/s1 mph
7h
Today — Hourly Forecast
06:4811.9h18:42
TomorrowSW 5 km/h1 m/s3 mph(gusts 27817)82%UV 14hTomorrow82%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
82%
SW 5 km/h1 m/s3 mph (gusts 27817)
UV 1
4h
Tomorrow — Hourly Forecast
06:4811.9h18:43
Friday1.8 mm0.07 inNW 6 km/h2 m/s3 mph(gusts 25716)83%UV 14hFriday83%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
83%
NW 6 km/h2 m/s3 mph (gusts 25716)
1.8 mm0.07 in
UV 1
4h
Friday — Forecast Overview
06:4811.9h18:43
Saturday3.2 mm0.13 inW 8 km/h2 m/s5 mph(gusts 21613)86%UV 13hSaturday86%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
86%
W 8 km/h2 m/s5 mph (gusts 21613)
3.2 mm0.13 in
UV 1
3h
Saturday — Forecast Overview
06:4811.9h18:43
Sunday2.0 mm0.08 inNW 6 km/h2 m/s4 mph(gusts 23615)82%UV 17hSunday82%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
82%
NW 6 km/h2 m/s4 mph (gusts 23615)
2.0 mm0.08 in
UV 1
7h
Sunday — Forecast Overview
06:4811.9h18:43
Monday6.6 mm0.26 in· heavyN 7 km/h2 m/s4 mph(gusts 21613)88%UV 18hMonday88%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
88%
N 7 km/h2 m/s4 mph (gusts 21613)
6.6 mm0.26 in
UV 1
8h
Monday — Forecast Overview
06:4811.9h18:43
TuesdayN 6 km/h2 m/s4 mph(gusts 19512)76%UV 18hTuesday76%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
76%
N 6 km/h2 m/s4 mph (gusts 19512)
UV 1
8h
Night
26°C78°F
Morning
29°C85°F
Afternoon
29°C85°F
Evening
30°C85°F
06:4811.9h18:43
WednesdayNE 7 km/h2 m/s4 mph(gusts 20512)72%UV 18hWednesday72%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
72%
NE 7 km/h2 m/s4 mph (gusts 20512)
UV 1
8h
Night
27°C80°F
Morning
30°C86°F
Afternoon
30°C86°F
Evening
30°C86°F
06:4811.9h18:43
Thursday1.3 mm0.05 inNE 7 km/h2 m/s4 mph(gusts 18511)77%12hThursday77%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
77%
NE 7 km/h2 m/s4 mph (gusts 18511)
1.3 mm0.05 in
12h
Night
24°C74°F
Morning
33°C92°F
Afternoon
33°C92°F
Evening
24°C76°F
06:4811.9h18:43
Friday0.7 mm0.03 inN 4 km/h1 m/s3 mph76%12hFriday76%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
76%
N 4 km/h1 m/s3 mph
0.7 mm0.03 in
12h
Night
22°C72°F
Morning
32°C90°F
Afternoon
32°C90°F
Evening
26°C79°F
06:4811.9h18:43
Saturday30.6 mm1.20 in· heavyNE 12 km/h3 m/s7 mph(gusts 23614)84%11hSaturday84%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
84%
NE 12 km/h3 m/s7 mph (gusts 23614)
30.6 mm1.20 in
11h
Night
23°C74°F
Morning
32°C90°F
Afternoon
32°C90°F
Evening
22°C72°F
06:4711.9h18:43
Sunday2.3 mm0.09 inNE 5 km/h2 m/s3 mph(gusts 17511)80%12hSunday80%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
80%
NE 5 km/h2 m/s3 mph (gusts 17511)
2.3 mm0.09 in
12h
Night
22°C71°F
Morning
31°C89°F
Afternoon
31°C89°F
Evening
25°C77°F
06:4711.9h18:43
Monday0.7 mm0.03 inNE 5 km/h1 m/s3 mph(gusts 1348)73%12hMonday73%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
73%
NE 5 km/h1 m/s3 mph (gusts 1348)
0.7 mm0.03 in
12h
Night
22°C72°F
Morning
31°C88°F
Afternoon
31°C88°F
Evening
27°C80°F
06:4711.9h18:43
TuesdaySE 6 km/h2 m/s4 mph(gusts 1137)74%12hTuesday74%SE 6 km/h2 m/s4 mph (gusts 1137)12h
Tuesday
SE 6 km/h2 m/s4 mph(gusts 1137)74%12h
Tuesday
74%
SE 6 km/h2 m/s4 mph (gusts 1137)
12h
Night
23°C74°F
Morning
30°C86°F
Afternoon
30°C86°F
Evening
26°C79°F
06:4711.9h18:43
Wednesday3.7 mm0.14 inNE 5 km/h1 m/s3 mph(gusts 1036)84%12hWednesday84%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
84%
NE 5 km/h1 m/s3 mph (gusts 1036)
3.7 mm0.14 in
12h
Night
23°C74°F
Morning
31°C87°F
Afternoon
31°C87°F
Evening
23°C73°F
06:4711.9h18:43
Thursday5.8 mm0.23 in· heavyNE 4 km/h1 m/s2 mph(gusts 724)84%11hThursday84%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
84%
NE 4 km/h1 m/s2 mph (gusts 724)
5.8 mm0.23 in
11h
Night
22°C72°F
Morning
31°C88°F
Afternoon
31°C88°F
Evening
25°C77°F
06:4711.9h18:43
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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