Air Quality in Castelo do Piauí, Brazil
Clear
24.9°C · 27.8% humidity
24.9°
Feels 24.9°
24
Good
Air quality is satisfactory. Enjoy outdoor activities.
Model forecast
Nearby Monitoring Stations
Castelo do Piauí's air quality — share it
AQI Forecast
24
3pm
24
24
24
6pm
24
24
24
9pm
25
25
24
12am
24
24
24
3am
24
24
24
6am
24
24
24
9am
24
24
24
12pm
25
25
Castelo do Piauí's air quality is influenced by vehicle emissions, industrial activity, and seasonal agricultural burning. Pollution patterns vary with dry and wet seasons.
27.8%
Humidity
33.6 km/h
Wind ESE
1014.1 hPa
Pressure
0.7
UV Low
GoodModerateUSGUnhealthyVery UnhealthyHazardous
Which pollutant is driving the AQI?
PM2.5▲
5.8 µg/m³
PM10
13.7 µg/m³
050100150200300500
What is the weather forecast for Castelo do Piauí?
Temperature & Precipitation
PM2.55.8 µg/m³
✓ WHO
Good
PM1013.7 µg/m³
Good
UV INDEX0.7
Low
What is the 7-day forecast for Castelo do Piauí?
07-21
36.4° 19.4°
0.13 mm
07-22
36.4° 19.2°
07-23
35.5° 22.2°
0.06 mm
07-24
36.6° 22.7°
0.5 mm
07-25
34.8° 24.1°
0.25 mm
07-26
36.4° 24.3°
07-27
36.5° 19.7°
Both models agree
Avg diff: 1.9°C
What cities are near Castelo do Piauí?
Get AQI alerts for Castelo do Piauí
Notify me when air quality reaches:
Free · No account · Unsubscribe any time
Data sources: Weather forecast from ECMWF (IFS & CAMS models). AQI calculated using US EPA standard. Updated 2026-07-21T21:45 UTC.