What is the air quality in União today?

The current Air Quality Index (AQI) in União is 25 (Good). PM2.5 concentration is 5.9 µg/m³.

What is the temperature in União right now?

The current temperature in União is 30.4°C (feels like 35.1°C). Humidity is 61.4% and wind speed is 33.8 km/h.

Is it safe to go outside in União?

Air quality is satisfactory. Enjoy outdoor activities. The UV Index is 2.9 (Moderate).

Air Quality in União, Brazil

Drizzle

30.4°C · 61.4% humidity

30.4°

Feels 35.1°

Good

Air quality is satisfactory. Enjoy outdoor activities.

Model forecast

Nearby Monitoring Stations

AQI Forecast

25 1pm

25 4pm

27 7pm

25 10pm

25 1am

25 4am

25 7am

25 10am

View AQI history for União →

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

61.4%

Humidity

33.8 km/h

Wind ENE

1012.5 hPa

Pressure

2.9

UV Moderate

GoodModerateUSGUnhealthyVery UnhealthyHazardous

Which pollutant is driving the AQI?

PM2.5▲

5.9 µg/m³

PM10

13.7 µg/m³

050100150200300500

What is the weather forecast for União?

Temperature & Precipitation

PM2.55.9 µg/m³ ✓ WHO

Good

PM1013.7 µg/m³

Good

UV INDEX2.9

Moderate

What is the 7-day forecast for União?

05-30

30.4° 22.1°

2.81 mm

05-31

32.9° 22.2°

0.06 mm

06-01

27.3° 22.8°

9.81 mm

06-02

32.9° 22.3°

4.44 mm

06-03

32.7° 21.8°

0.25 mm

06-04

33.6° 23.0°

06-05

33.7° 22.1°

Both models agree Avg diff: 2.1°C

What cities are near União?

25 José de Freitas 26 Coelho Neto 25 Miguel Alves 25 Teresina 25 Timon 25 Caxias 25 Altos 25 Aldeias Altas 25 Buriti 25 Barras

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Data sources: Weather forecast from ECMWF (IFS & CAMS models). AQI calculated using US EPA standard. Updated 2026-05-30T19:18 UTC.