What is the air quality in Porto Alegre today?

The current Air Quality Index (AQI) in Porto Alegre is 18 (Good). PM2.5 concentration is 4.22 µg/m³.

What is the temperature in Porto Alegre right now?

The current temperature in Porto Alegre is 15.1°C (feels like 15.1°C). Humidity is 95.9% and wind speed is 40.5 km/h.

Is it safe to go outside in Porto Alegre?

Air quality is satisfactory. Enjoy outdoor activities. The UV Index is 2.2 (Moderate).

Air Quality in Porto Alegre, Brazil

Rain

15.1°C · 95.9% humidity

15.1°

Feels 15.1°

Good

Air quality is satisfactory. Enjoy outdoor activities.

Calibrated model

Nearby Monitoring Stations

AQI Forecast

25 11am

18 2pm

22 5pm

24 8pm

25 11pm

25 2am

25 5am

25 8am

Air Quality Index Trend

48h · 7 stn

View full history →

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

95.9%

Humidity

40.5 km/h

Wind W

1016.7 hPa

Pressure

2.2

UV Moderate

GoodModerateUSGUnhealthyVery UnhealthyHazardous

Which pollutant is driving the AQI?

PM2.5▲

4.22 µg/m³

PM10

13.7 µg/m³

050100150200300500

What is the weather forecast for Porto Alegre?

Temperature & Precipitation

PM2.5 Trend

48h · 7 stations

PM2.54.22 µg/m³ ✓ WHO

Good

PM1013.7 µg/m³

Good

UV INDEX2.2

Moderate

What is the 7-day forecast for Porto Alegre?

07-21

18.8° 11.9°

18.38 mm

07-22

26.1° 10.7°

9.37 mm

07-23

20.4° 13.4°

07-24

19.8° 16.0°

0.13 mm

07-25

28.4° 9.4°

07-26

17.4° 11.6°

8.75 mm

07-27

17.2° 10.5°

4.31 mm

Both models agree Avg diff: 3.9°C

Where are air quality stations near Porto Alegre?

brazil-porto-alegre-rua-doutor-salvador-frança

5.7 km PM2.5: 2.1 µg/m³ PM10: 2.7 µg/m³

What cities are near Porto Alegre?

16 Guaíba 22 Canoas 17 Alvorada 21 Cachoeirinha 22 Esteio 24 Nova Santa Rita 17 Viamão 19 Gravataí 23 Sapucaia do Sul 21 São Leopoldo

Get AQI alerts for Porto Alegre

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

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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 2026-07-21T17:15 UTC.