Air Quality in Niterói, Brazil
Windy
32.0°C · 31.2% humidity
32.0°
Feels 32.0°
60
Moderate
Unusually sensitive people should consider reducing prolonged outdoor exertion.
Model forecast
Nearby Monitoring Stations
Niterói's air quality — share it
AQI Forecast
66
7pm
66
83
60
10pm
67
71
75
1am
77
79
80
4am
81
81
82
7am
82
82
54
10am
54
54
54
1pm
54
54
54
4pm
54
54
Niterói's air quality is influenced by vehicle emissions, industrial activity, and seasonal agricultural burning. Pollution patterns vary with dry and wet seasons. Current PM2.5 concentration in Niterói is 1.1× the WHO 24-hour guideline of 15 µg/m³.
31.2%
Humidity
41.8 km/h
Wind SE
1014.9 hPa
Pressure
0.7
UV Low
GoodModerateUSGUnhealthyVery UnhealthyHazardous
Which pollutant is driving the AQI?
PM2.5▲
16.35 µg/m³
PM10
41.2 µg/m³
050100150200300500
What is the weather forecast for Niterói?
Temperature & Precipitation
PM2.516.35 µg/m³
×1.1 WHO
Moderate
PM1041.2 µg/m³
Good
UV INDEX0.7
Low
What is the 7-day forecast for Niterói?
08-03
32.0° 17.4°
0.56 mm
08-04
34.8° 16.0°
0.88 mm
08-05
32.6° 18.8°
08-06
27.8° 17.9°
5.0 mm
08-07
27.1° 19.5°
0.94 mm
08-08
29.3° 19.2°
08-09
35.9° 22.3°
Both models agree
Avg diff: 2.7°C
Where are air quality stations near Niterói?
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Data sources: Weather forecast from ECMWF (IFS & CAMS models). AQI calculated using US EPA standard. Updated 2026-08-08T01:57 UTC.