Niteroi Weather Conditions

Current Temperature Level

cloudy
21°C
24°C17°C
Pleasant

Cloudy

Feels Like 21°C

Chances of Rain11%

Good

29AQI

Humidity

66%

Nowcloudy21°11%11 AMpartly cloudy22°8%12 PMcloudy24°10%1 PMcloudy23°11%2 PMpartly cloudy23°7%3 PMpartly cloudy23°6%4 PMpartly cloudy23°6%5 PMsunny22°5%6 PMclear20°7%7 PMclear20°8%8 PMclear19°9%9 PMclear18°10%10 PMclear18°11%11 PMsmoky haze18°11%12 AMclear18°11%1 AMclear18°11%2 AMclear18°10%3 AMclear18°10%4 AMclear18°10%5 AMclear18°10%6 AMclear18°10%7 AMsunny18°8%8 AMsunny21°5%9 AMsunny23°4%
.

Cloud cover is likely with limited sunshine.

Last Updated: 2026-08-12 10:00 (Local Time)

Niteroi Weather Parameters

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Niteroi 10-Days Weather Forecast

See Monthly
Today12 Aug.


Cloudy

Cloudy

Mostly cloudy skies with a high of 19 °C. Humidity at 75% and winds around 14 km/h.


temperature icon

24°C  /  17°C

temperature iconHumi.75 %
temperature iconPrec.0 mm


Sunrise icon

Sunrise

06:19 AM

11hrs 16min

Sunset icon

Sunset

05:35 PM
Temperature (°C)
.
12 AMTime11 PM

Time

Condition

Temperature IconTemp

Humidity IconHumidity

UV IconUV

Wind IconWind Speed & Dir.

12 AM

Partly CloudyPartly Cloudy

17 °C

86 %

0

5.4 kmph /  ENE

Feels Like IconFeels 18 °C

Temperature IconCover 44 %

Visibility IconVisibility 10 km

1 AM

Partly CloudyPartly Cloudy

17 °C

86 %

0

6.1 kmph /  ENE

Feels Like IconFeels 17 °C

Temperature IconCover 40 %

Visibility IconVisibility 10 km

2 AM

Partly CloudyPartly Cloudy

17 °C

86 %

0

5 kmph /  ENE

Feels Like IconFeels 17 °C

Temperature IconCover 53 %

Visibility IconVisibility 10 km

3 AM

CloudyCloudy

17 °C

86 %

0

4.7 kmph /  ENE

Feels Like IconFeels 17 °C

Temperature IconCover 63 %

Visibility IconVisibility 10 km

4 AM

CloudyCloudy

17 °C

86 %

0

5.4 kmph /  ENE

Feels Like IconFeels 17 °C

Temperature IconCover 72 %

Visibility IconVisibility 10 km

5 AM

CloudyCloudy

17 °C

86 %

0

5.4 kmph /  NE

Feels Like IconFeels 17 °C

Temperature IconCover 68 %

Visibility IconVisibility 10 km

6 AM

CloudyCloudy

17 °C

86 %

0

5.4 kmph /  ENE

Feels Like IconFeels 17 °C

Temperature IconCover 72 %

Visibility IconVisibility 10 km

7 AM

CloudyCloudy

17 °C

84 %

0.2

6.1 kmph /  ENE

Feels Like IconFeels 17 °C

Temperature IconCover 69 %

Visibility IconVisibility 10 km

8 AM

CloudyCloudy

18 °C

78 %

0.9

5.8 kmph /  E

Feels Like IconFeels 18 °C

Temperature IconCover 86 %

Visibility IconVisibility 10 km

9 AM

CloudyCloudy

19 °C

73 %

2

6.8 kmph /  ENE

Feels Like IconFeels 19 °C

Temperature IconCover 68 %

Visibility IconVisibility 10 km

10 AM

CloudyCloudy

21 °C

66 %

3.3

7.2 kmph /  ENE

Feels Like IconFeels 21 °C

Temperature IconCover 72 %

Visibility IconVisibility 10 km

11 AM

Partly CloudyPartly Cloudy

22 °C

60 %

5.9

6.5 kmph /  E

Feels Like IconFeels 22 °C

Temperature IconCover 59 %

Visibility IconVisibility 10 km

12 PM

CloudyCloudy

24 °C

57 %

6.6

6.1 kmph /  ESE

Feels Like IconFeels 24 °C

Temperature IconCover 74 %

Visibility IconVisibility 10 km

1 PM

CloudyCloudy

23 °C

57 %

4.4

7.2 kmph /  ESE

Feels Like IconFeels 23 °C

Temperature IconCover 81 %

Visibility IconVisibility 10 km

2 PM

Partly CloudyPartly Cloudy

23 °C

58 %

2.6

9.7 kmph /  E

Feels Like IconFeels 23 °C

Temperature IconCover 53 %

Visibility IconVisibility 10 km

3 PM

Partly CloudyPartly Cloudy

23 °C

59 %

1.5

10.4 kmph /  E

Feels Like IconFeels 23 °C

Temperature IconCover 40 %

Visibility IconVisibility 10 km

4 PM

Partly CloudyPartly Cloudy

23 °C

60 %

0.6

13 kmph /  ESE

Feels Like IconFeels 22 °C

Temperature IconCover 42 %

Visibility IconVisibility 10 km

5 PM

SunnySunny

22 °C

65 %

0.1

14 kmph /  E

Feels Like IconFeels 21 °C

Temperature IconCover 18 %

Visibility IconVisibility 10 km

6 PM

ClearClear

20 °C

72 %

0

11.9 kmph /  E

Feels Like IconFeels 20 °C

Temperature IconCover 6 %

Visibility IconVisibility 10 km

7 PM

ClearClear

20 °C

76 %

0

11.5 kmph /  E

Feels Like IconFeels 19 °C

Temperature IconCover 10 %

Visibility IconVisibility 10 km

8 PM

ClearClear

19 °C

79 %

0

10.4 kmph /  ENE

Feels Like IconFeels 19 °C

Temperature IconCover 9 %

Visibility IconVisibility 10 km

9 PM

ClearClear

18 °C

82 %

0

9.4 kmph /  ENE

Feels Like IconFeels 18 °C

Temperature IconCover 9 %

Visibility IconVisibility 10 km

10 PM

ClearClear

18 °C

84 %

0

8.3 kmph /  ENE

Feels Like IconFeels 18 °C

Temperature IconCover 8 %

Visibility IconVisibility 10 km

11 PM

Smoky hazeSmoky haze

18 °C

84 %

0

7.6 kmph /  ENE

Feels Like IconFeels 18 °C

Temperature IconCover 6 %

Visibility IconVisibility 8.2 km

Temp21 °C


ConditionCloudy


Humidity66 %

Feels21 °C


Cover72 %


Visibility10 km

Wind Speed & Dir.7.2 kmph /  ENE


UV3.3

Niteroi 30-Days (August 2026) Weather Forecast

See Hourly
Sun.Mon.Tue.Wed.Thu.Fri.Sat.
1
Sunny27°16°
2
Sunny29°17°
3
Sunny27°18°
4
Sunny29°18°
5
Sunny31°20°
6
Sunny33°21°
7
Sunny34°22°
8
Sunny31°20°
9
Sunny32°22°
10
Rain Shower22°19°
11
Rain Shower19°18°
12Today
Cloudy23°17°
13
Sunny29°18°
14
Smoky haze26°20°
15
Patchy rain nearby26°20°
16
Sunny30°19°
17
Sunny32°20°
18
Sunny34°21°
19
Heavy Rain27°18°
20
Rain Showers25°18°
21
Rain Showers24°18°
22
Rain Showers25°17°
23
Rain Possible27°18°
24
Rain Showers26°18°
25
Rain Showers26°19°
26
Rain Showers25°18°
27
Rain Showers24°18°
28
Rain Showers25°18°
29
Rain Showers25°18°
30
Rain27°18°
31
Heavy Rain26°18°

AugustWeather Overview

No. of days:

Sunny

Sunny

13

Cloudy

Cloudy

1

Rainy

Rainy

14

Snowy

Snowy

0


The monthly weather averages in Niteroi consist of 13 sunny days, 1 cloudy days, 14 rainy days, and 0 snowy days.

Niteroi's Locations Weather Conditions


Locations
Temp
Condition
Humi.
UV
Wind Speed & Direction
21 °C
cloudyCloudy
66%
3.3

7.2 kmph /  ENE

21 °C
partly cloudyPartly Cloudy
65%
3.3

6.8 kmph /  ENE

21 °C
partly cloudyPartly Cloudy
65%
3.3

6.8 kmph /  ENE

Brazil's Hottest Cities - August 2026

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Last Updated: 12 Aug 2026, 01:24 PM

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FAQs About Niteroi Weather Conditions


1. What is the current temperature in Niteroi today - 12 August 2026?

The current temperature in Niteroi is 21°C, with a feels-like temperature of 21°C. Today's forecast shows a high of 24°C and a low of 17°C, giving a 7 degree swing through the day as of 10:00 AM 12 August 2026.

2. What are the current weather parameters in Niteroi today?

Here is a complete overview of Niteroi's current weather conditions as of 10:00 AM 12 August 2026: Condition : Cloudy Temperature : 21°C Pleasant (Feels like 21°C) Humidity : 66% Wind Speed : 7.2 km/h from ENE (76 degrees), Gust 2.3 m/s UV Index : 3.3 (Moderate Air Pressure : 1025 mb Cloud Cover : 72% Visibility : 10 km Precipitation : 0 mm (11% chance of rain)

3. What is the 10-day weather forecast for Niteroi from 10:00 AM 12 August 2026?

From 10:00 AM 12 August 2026, Niteroi's 10-day forecast shows this trend: Today (Aug. 12) : Temp. 19°C, Hum. 75% and Cloudy condition. Thursday (Aug. 13) : Temp. 23°C, Hum. 68% and Sunny condition. Friday (Aug. 14) : Temp. 23°C, Hum. 78% and Smoky haze condition. Saturday (Aug. 15) : Temp. 23°C, Hum. 85% and Mist condition. Sunday (Aug. 16) : Temp. 24°C, Hum. 79% and Smoky haze condition. Monday (Aug. 17) : Temp. 26°C, Hum. 68% and Sunny condition. Tuesday (Aug. 18) : Temp. 27°C, Hum. 56% and Sunny condition. Wednesday (Aug. 19) : Temp. 28°C, Hum. 50% and Sunny condition. Thursday (Aug. 20) : Temp. 21°C, Hum. 77% and Rain Showers condition. Friday (Aug. 21) : Temp. 21°C, Hum. 78% and Rain Showers condition.

4. Will it rain in Niteroi today?

As of 10:00 AM 12 August 2026, there is a 11% chance of rainfall in Niteroi later today around 2026-08-12 10:00. Current precipitation is 0 mm. Residents are advised to carry an umbrella before heading out.

5. What is the monthly weather forecast for Niteroi in August 2026?

August 2026 in Niteroi is forecast to have 13 sunny days, 14 rainy days, 1 cloudy days, and 0 snowy days. Temperatures for the month range from lows around 16°C to highs of 34°C.

6. How does the weather in Niteroi affect air quality?

Weather directly impacts air quality in Niteroi. Calm winds, high humidity, fog, and high pressure trap pollutants near the ground, worsening AQI. Strong winds, rainfall, and low pressure help disperse them. Rising temperatures and UV levels intensify ozone and smog formation, while poor visibility signals elevated particulate matter. Monitoring weather alongside AQI gives the clearest picture of outdoor safety.