What is the air quality in União today?

The current Air Quality Index (AQI) in União is 25 (Good). PM2.5 concentration is 6.0 µg/m³.

What is the temperature in União right now?

The current temperature in União is 27.5°C (feels like 31.1°C). Humidity is 62.9% and wind speed is 37.6 km/h.

Is it safe to go outside in União?

Air quality is satisfactory. Enjoy outdoor activities. The UV Index is 0.0 (Low).

Air Quality in União, Brazil

Drizzle

27.5°C · 62.9% humidity

27.5°

Feels 31.1°

Good

Air quality is satisfactory. Enjoy outdoor activities.

Model forecast

Nearby Monitoring Stations

AQI Forecast

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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.

62.9%

Humidity

37.6 km/h

Wind N

1009.3 hPa

Pressure

0.0

UV Low

GoodModerateUSGUnhealthyVery UnhealthyHazardous

Which pollutant is driving the AQI?

PM2.5▲

6.0 µg/m³

PM10

13.7 µg/m³

050100150200300500

What is the weather forecast for União?

Temperature & Precipitation

PM2.56.0 µg/m³ ✓ WHO

Good

PM1013.7 µg/m³

Good

UV INDEX0.0

Low

What is the 7-day forecast for União?

10-22

41.6° 21.1°

0.31 mm

10-23

41.3° 23.3°

10-24

41.3° 20.7°

10-25

41.9° 21.5°

10-26

36.3° 24.5°

10-27

36.1° 22.4°

0.19 mm

10-28

42.1° 22.4°

Both models agree Avg diff: 2.1°C

What cities are near União?

24 José de Freitas 25 Coelho Neto 27 Miguel Alves 25 Teresina 25 Timon 25 Caxias 25 Altos 25 Aldeias Altas 27 Buriti 25 Barras

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

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Data sources: Weather forecast from ECMWF (IFS & CAMS models). AQI calculated using US EPA standard. Updated 2026-10-22T00:13 UTC.