Air Quality in Castanhal, Brazil
Clear
34.3°C · 35.8% humidity
34.3°
Feels 34.3°
27
Good
Air quality is satisfactory. Enjoy outdoor activities.
Model forecast
Nearby Monitoring Stations
Castanhal's air quality — share it
AQI Forecast
27
9am
27
27
27
12pm
34
34
34
3pm
34
34
34
6pm
34
27
27
9pm
27
27
27
12am
27
27
27
3am
27
27
27
6am
27
27
Castanhal's air quality is influenced by vehicle emissions, industrial activity, and seasonal agricultural burning. Pollution patterns vary with dry and wet seasons.
35.8%
Humidity
34.3 km/h
Wind E
1010.0 hPa
Pressure
24.9
UV Extreme
GoodModerateUSGUnhealthyVery UnhealthyHazardous
Which pollutant is driving the AQI?
PM2.5▲
6.5 µg/m³
PM10
13.7 µg/m³
050100150200300500
What is the weather forecast for Castanhal?
Temperature & Precipitation
PM2.56.5 µg/m³
✓ WHO
Good
PM1013.7 µg/m³
Good
UV INDEX24.9
Extreme
What is the 7-day forecast for Castanhal?
09-05
34.3° 21.5°
0.13 mm
09-06
32.9° 21.0°
09-07
35.0° 22.8°
0.06 mm
09-08
37.3° 21.5°
09-09
31.2° 21.3°
09-10
36.4° 21.1°
0.38 mm
09-11
37.5° 20.9°
0.25 mm
Both models agree
Avg diff: 1.4°C
What cities are near Castanhal?
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Data sources: Weather forecast from ECMWF (IFS & CAMS models). AQI calculated using US EPA standard. Updated 2026-09-05T15:47 UTC.