Air Quality in Porto Alegre, Brazil
Drizzle
26.5°C · 65.7% humidity
26.5°
Feels 26.5°
13
Good
Air quality is satisfactory. Enjoy outdoor activities.
Calibrated model
Nearby Monitoring Stations
Porto Alegre's air quality — share it
AQI Forecast
27
9am
25
25
13
12pm
16
19
21
3pm
22
23
23
6pm
24
24
26
9pm
27
27
27
12am
34
34
54
3am
34
27
25
6am
24
24
Air Quality Index Trend
45h · 8 stnPorto Alegre's air quality is influenced by vehicle emissions, industrial activity, and seasonal agricultural burning. Pollution patterns vary with dry and wet seasons.
65.7%
Humidity
67.9 km/h
Wind W
1003.5 hPa
Pressure
12.9
UV Extreme
GoodModerateUSGUnhealthyVery UnhealthyHazardous
Which pollutant is driving the AQI?
PM2.5▲
3.1 µg/m³
PM10
13.7 µg/m³
050100150200300500
What is the weather forecast for Porto Alegre?
Temperature & Precipitation
PM2.5 Trend
45h · 8 stationsPM2.53.1 µg/m³
✓ WHO
Good
PM1013.7 µg/m³
Good
UV INDEX12.9
Extreme
What is the 7-day forecast for Porto Alegre?
09-05
26.5° 13.6°
0.31 mm
09-06
17.6° 13.2°
39.19 mm
09-07
26.0° 14.3°
28.37 mm
09-08
22.6° 11.8°
24.31 mm
09-09
17.8° 7.5°
2.63 mm
09-10
21.9° 14.7°
9.94 mm
09-11
21.5° 15.3°
3.88 mm
Both models agree
Avg diff: 4.1°C
What cities are near Porto Alegre?
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Data sources: AQI from ground-level monitoring stations via AQICN. Weather forecast from ECMWF (IFS & CAMS models). AQI calculated using US EPA standard. Updated 2026-09-05T15:10 UTC.