What is the air quality in São Mateus today?

The current Air Quality Index (AQI) in São Mateus is 25 (Good). PM2.5 concentration is 5.9 µg/m³.

What is the temperature in São Mateus right now?

The current temperature in São Mateus is 21.8°C (feels like 21.8°C). Humidity is 96.4% and wind speed is 21.0 km/h.

Is it safe to go outside in São Mateus?

Air quality is satisfactory. Enjoy outdoor activities. The UV Index is 0.7 (Low).

Air Quality in São Mateus, Brazil

Overcast

21.8°C · 96.4% humidity

21.8°

Feels 21.8°

Good

Air quality is satisfactory. Enjoy outdoor activities.

Model forecast

Nearby Monitoring Stations

AQI Forecast

25 11pm

25 2am

25 5am

25 8am

27 11am

27 2pm

27 5pm

25 8pm

View AQI history for São Mateus →

São Mateus's air quality is influenced by vehicle emissions, industrial activity, and seasonal agricultural burning. Pollution patterns vary with dry and wet seasons.

96.4%

Humidity

21.0 km/h

Wind NNW

1018.8 hPa

Pressure

0.7

UV Low

GoodModerateUSGUnhealthyVery UnhealthyHazardous

Which pollutant is driving the AQI?

PM2.5▲

5.9 µg/m³

PM10

13.7 µg/m³

050100150200300500

What is the weather forecast for São Mateus?

Temperature & Precipitation

PM2.55.9 µg/m³ ✓ WHO

Good

PM1013.7 µg/m³

Good

UV INDEX0.7

Low

Both models agree Avg diff: 2.2°C

What cities are near São Mateus?

26 Conceição da Barra 25 Jaguaré 26 Pinheiros 25 Nova Venécia 26 Sooretama 25 Mucuri 34 Linhares 34 Rio Bananal 26 São Gabriel da Palha 25 Pedro Canário

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ModerateAQI > 50 Unhealthy for Sensitive GroupsAQI > 100 UnhealthyAQI > 150 Very UnhealthyAQI > 200

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Data sources: Weather forecast from ECMWF (IFS & CAMS models). AQI calculated using US EPA standard. Updated 2026-06-09T05:46 UTC.