Air Quality in Castelo do Piauí, Brazil
Clear
37.9°C · 17.2% humidity
37.9°
Feels 37.9°
31
Good
Air quality is satisfactory. Enjoy outdoor activities.
Model forecast
Nearby Monitoring Stations
Castelo do Piauí's air quality — share it
AQI Forecast
27
10am
34
34
31
1pm
34
34
34
4pm
34
34
34
7pm
34
34
27
10pm
27
27
27
1am
27
27
27
4am
27
27
27
7am
27
27
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.
17.2%
Humidity
33.0 km/h
Wind E
1008.7 hPa
Pressure
24.9
UV Extreme
GoodModerateUSGUnhealthyVery UnhealthyHazardous
Which pollutant is driving the AQI?
PM2.5▲
7.35 µg/m³
PM10
13.7 µg/m³
050100150200300500
What is the weather forecast for Castelo do Piauí?
Temperature & Precipitation
PM2.57.35 µg/m³
✓ WHO
Good
PM1013.7 µg/m³
Good
UV INDEX24.9
Extreme
What is the 7-day forecast for Castelo do Piauí?
09-05
37.9° 23.3°
09-06
38.8° 21.3°
09-07
38.3° 20.5°
09-08
38.6° 22.4°
09-09
38.5° 21.7°
09-10
38.8° 19.9°
0.06 mm
09-11
38.1° 21.0°
Both models agree
Avg diff: 1.8°C
What cities are near Castelo do Piauí?
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Data sources: Weather forecast from ECMWF (IFS & CAMS models). AQI calculated using US EPA standard. Updated 2026-09-05T16:37 UTC.