Air Quality in São Mateus, Brazil
Windy
28.5°C · 21.6% humidity
28.5°
Feels 28.5°
52
Moderate
Unusually sensitive people should consider reducing prolonged outdoor exertion.
4 stations
Nearby Monitoring Stations
AQI Forecast
Calibrated
13
11am
12
24
52
2pm
38
28
40
5pm
35
43
41
8pm
39
25
24
11pm
24
23
3
2am
3
2
2
5am
2
2
22
8am
22
22
Station readings
13
12
24
CAMS model
adj -32
54
34
34
34
34
34
54
54
66
66
66
54
54
54
54
34
34
34
34
34
34
54
54
54
Air Quality Index Trend
47h · 2 stnSão Mateus's air quality is influenced by vehicle emissions, industrial activity, and seasonal agricultural burning. Pollution patterns vary with dry and wet seasons.
21.6%
Humidity
50.5 km/h
Wind NW
1015.3 hPa
Pressure
10.9
UV Extreme
GoodModerateUSGUnhealthyVery UnhealthyHazardous
Which pollutant is driving the AQI?
PM2.5▲
12.8 µg/m³
PM10
20.55 µg/m³
050100150200300500
What is the weather forecast for São Mateus?
Temperature & Precipitation
PM2.5 Trend
47h · 2 stationsPM2.512.8 µg/m³
✓ WHO
Moderate
PM1020.55 µg/m³
Good
UV INDEX10.9
Extreme
Station readings (4 stations within 25 km)
12.8
Median
9.96
Average
2.4
Low
24.9
High
PM2.5 µg/m³ · Model: 7.35 · Bias: -5.4
What is the 7-day forecast for São Mateus?
07-21
28.5° 13.8°
3.38 mm
07-22
27.4° 16.1°
7.81 mm
07-23
20.1° 15.2°
0.38 mm
07-24
29.3° 17.8°
07-25
24.6° 14.8°
07-26
28.5° 16.3°
0.19 mm
07-27
29.4° 13.0°
0.38 mm
Both models agree
Avg diff: 2.6°C
Where are air quality stations near São Mateus?
33
Itaquera, São Paulo, Brazil
64
S.André-Capuava, São Paulo, Brazil
12
Mauá, São Paulo, Brazil
46
S.Bernardo-Centro, São Paulo, Brazil
37
S.Bernardo-Centro, São Paulo, Brazil
24
Itaim Paulista, São Paulo, Brazil
68
Itaim Paulista, São Paulo, Brazil
23
Mooca, São Paulo, Brazil
33
Mooca, São Paulo, Brazil
54
Diadema, São Paulo, Brazil
What cities are near São Mateus?
Get AQI alerts for São Mateus
Notify me when air quality reaches:
Free · No account · Unsubscribe any time
Data sources: AQI from ground-level monitoring stations via AQICN. Weather forecast from ECMWF (IFS & CAMS models). AQI calculated using US EPA standard. Updated 2026-07-21T17:15 UTC.