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La Unión (Valle del Cauca) (CO)

Air Quality Trend (last 7 days)

Good (0-50)
Moderate (51-100)
Unhealthy for Sensitive Groups (101-150)
Unhealthy (151-200)
Very Unhealthy (201-300)
Hazardous (300+)

Weather - 48h MET Norway

Cloudy
20°C
Cloudy
Humidity
94.3%
Wind
1 m/s
Pressure
1013.1 hPa
Direction
62°
Sunrise
05:00
Sunset
17:00
24h Forecast:
Temp.
19° / 28°
Precip.
14.5mm
Max wind
2.8 m/s

Hourly Forecast

31.01
Now
Weather
20°
31.01
09:00
Weather
20°
31.01
10:00
Weather
19°
31.01
11:00
Weather
19°
31.01
12:00
Weather
19°
31.01
13:00
Weather
21°
31.01
14:00
Weather
22°
31.01
15:00
Weather
23°
31.01
16:00
Weather
25°
31.01
17:00
Weather
27°
31.01
18:00
Weather
27°
0.2
31.01
19:00
Weather
27°
31.01
20:00
Weather
28°
31.01
21:00
Weather
27°
5.5
31.01
22:00
Weather
23°
0.8
31.01
23:00
Weather
22°
1.9
01.02
00:00
Weather
21°
2.3
01.02
01:00
Weather
21°
0.8
01.02
02:00
Weather
21°
0.4
01.02
03:00
Weather
21°
1.5
01.02
04:00
Weather
20°
0.4
01.02
05:00
Weather
20°
0.2
01.02
06:00
Weather
20°
01.02
07:00
Weather
20°
0.5

Temperature

28°C
19°C
08:00
20°C
09:00
20°C
10:00
19°C
11:00
19°C
12:00
19°C
13:00
21°C
14:00
22°C
15:00
23°C
16:00
25°C
17:00
27°C
18:00
27°C
19:00
27°C
20:00
28°C
21:00
27°C
22:00
23°C
23:00
22°C
00:00
21°C
01:00
21°C
02:00
21°C
03:00
21°C
04:00
20°C
05:00
20°C
06:00
20°C
07:00
20°C
08:00 19:00 07:00

Precipitation

5.5mm
0mm
18:00
0.2mm
21:00
5.5mm
22:00
0.8mm
23:00
1.9mm
00:00
2.3mm
01:00
0.8mm
02:00
0.4mm
03:00
1.5mm
04:00
0.4mm
05:00
0.2mm
07:00
0.5mm
08:00 19:00 07:00

Wind

2.8m/s
0m/s
08:00
1.3 m/s
09:00
0.9 m/s
10:00
1.1 m/s
11:00
1.3 m/s
12:00
1.4 m/s
13:00
1 m/s
14:00
1.4 m/s
15:00
1.5 m/s
16:00
1.4 m/s
17:00
2.2 m/s
18:00
1.4 m/s
19:00
1.9 m/s
20:00
1.7 m/s
21:00
2.8 m/s
22:00
2.4 m/s
23:00
1.9 m/s
00:00
1.5 m/s
01:00
1.4 m/s
02:00
1.4 m/s
03:00
1.8 m/s
04:00
1.3 m/s
05:00
1.2 m/s
06:00
1 m/s
07:00
0.7 m/s
08:00 19:00 07:00

Radiation

No sensor within 100 km.

We display the worst measurements from all stations in the area. This approach provides a more cautious assessment of air quality, accounting for local pollution sources.

AQI
90.3 km
12
4%

Measurement time: 2026-01-31 09:26

Calculated from PM2.5/PM10

O3
90.3 km
6.74 µg/m3
4.2%

Measurement time: 2026-01-31 09:26

source: OpenWeatherMap

PM2.5
90.3 km
2.94 µg/m3
3.5%

Measurement time: 2026-01-31 09:26

source: OpenWeatherMap

PM10
90.3 km
3.57 µg/m3
2.6%

Measurement time: 2026-01-31 09:26

source: OpenWeatherMap

NO2
90.3 km
3.66 µg/m3
1.8%

Measurement time: 2026-01-31 09:26

source: OpenWeatherMap

CO
90.3 km
0.14697 mg/m3
1%

Measurement time: 2026-01-31 09:26

source: OpenWeatherMap

SO2
90.3 km
0.31 µg/m3
0.1%

Measurement time: 2026-01-31 09:26

source: OpenWeatherMap

Info


Country: Colombia
Latitude: 4.53282
Longitude: -76.10318


Solar Energy

Night
0 W/m²
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About Air Quality in La Unión

Air quality in La Unión is monitored in real-time by sensors and measurement stations. On this page you'll find current data on major air pollutants including particulate matter PM2.5 and PM10, nitrogen dioxide (NO2), ozone (O3), and radiation levels.

Common Pollutants in La Unión

  • PM2.5 - fine particulate matter up to 2.5 micrometers, particularly harmful to health
  • PM10 - particulate matter up to 10 micrometers from traffic and industry
  • NO2 - nitrogen dioxide mainly emitted by vehicles
  • O3 - tropospheric ozone formed in photochemical reactions

When is Air Quality Best in La Unión?

Generally, the best air quality occurs:

  • Early morning (5:00-7:00 AM) before rush hour traffic
  • After rainfall which cleanses the atmosphere
  • During strong winds that disperse pollutants
  • In summer months when heating systems are less used

Tips for Runners in La Unión

If you're planning outdoor activities in La Unión, always check the current AQI value. When AQI exceeds 100, consider moving your workout indoors or shortening the distance. People with respiratory issues, children, and seniors should be especially cautious during elevated pollution levels. Choose routes away from busy streets and industrial areas.