Air Quality in São Mateus do Maranhão, Brazil
Clear
34.9°C · 32.6% humidity
34.9°
Feels 34.9°
25
Good
Air quality is satisfactory. Enjoy outdoor activities.
Model forecast
Nearby Monitoring Stations
São Mateus do Maranhão's air quality — share it
AQI Forecast
25
2pm
25
25
25
5pm
25
25
25
8pm
25
25
25
11pm
24
24
24
2am
24
24
24
5am
25
25
25
8am
25
25
24
11am
24
24
São Mateus do Maranhão's air quality is influenced by vehicle emissions, industrial activity, and seasonal agricultural burning. Pollution patterns vary with dry and wet seasons.
32.6%
Humidity
25.9 km/h
Wind ESE
1011.3 hPa
Pressure
0.7
UV Low
GoodModerateUSGUnhealthyVery UnhealthyHazardous
Which pollutant is driving the AQI?
PM2.5▲
6.0 µg/m³
PM10
13.7 µg/m³
050100150200300500
What is the weather forecast for São Mateus do Maranhão?
Temperature & Precipitation
PM2.56.0 µg/m³
✓ WHO
Good
PM1013.7 µg/m³
Good
UV INDEX0.7
Low
What is the 7-day forecast for São Mateus do Maranhão?
07-21
34.9° 21.6°
0.75 mm
07-22
34.3° 21.2°
0.44 mm
07-23
31.0° 23.4°
1.5 mm
07-24
35.2° 22.7°
0.13 mm
07-25
33.9° 22.1°
0.19 mm
07-26
30.4° 22.4°
0.75 mm
07-27
34.2° 22.4°
0.13 mm
Both models agree
Avg diff: 1.7°C
What cities are near São Mateus do Maranhão?
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Data sources: Weather forecast from ECMWF (IFS & CAMS models). AQI calculated using US EPA standard. Updated 2026-07-21T20:57 UTC.