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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
30°C
Cloudy
Humidity
48.6%
Wind
4 m/s
Pressure
1005.6 hPa
Direction
290°
Sunrise
05:00
Sunset
17:00
24h Forecast:
Temp.
20° / 31°
Precip.
2.4mm
Max wind
4.4 m/s

Hourly Forecast

15.03
Now
Weather
30°
15.03
21:00
Weather
30°
15.03
22:00
Weather
28°
15.03
23:00
Weather
26°
0.2
16.03
00:00
Weather
24°
0.8
16.03
01:00
Weather
23°
16.03
02:00
Weather
23°
16.03
03:00
Weather
22°
0.1
16.03
04:00
Weather
22°
0.6
16.03
05:00
Weather
21°
0.2
16.03
06:00
Weather
21°
0.2
16.03
07:00
Weather
20°
16.03
08:00
Weather
20°
16.03
09:00
Weather
20°
16.03
10:00
Weather
20°
0.2
16.03
11:00
Weather
20°
16.03
12:00
Weather
20°
0.1
16.03
13:00
Weather
21°
16.03
14:00
Weather
23°
16.03
15:00
Weather
25°
16.03
16:00
Weather
27°
16.03
17:00
Weather
29°
16.03
18:00
Weather
30°
16.03
19:00
Weather
31°

Temperature

31°C
20°C
20:00
30°C
21:00
30°C
22:00
28°C
23:00
26°C
00:00
24°C
01:00
23°C
02:00
23°C
03:00
22°C
04:00
22°C
05:00
21°C
06:00
21°C
07:00
20°C
08:00
20°C
09:00
20°C
10:00
20°C
11:00
20°C
12:00
20°C
13:00
21°C
14:00
23°C
15:00
25°C
16:00
27°C
17:00
29°C
18:00
30°C
19:00
31°C
20:00 07:00 19:00

Precipitation

0.8mm
0mm
23:00
0.2mm
00:00
0.8mm
03:00
0.1mm
04:00
0.6mm
05:00
0.2mm
06:00
0.2mm
10:00
0.2mm
12:00
0.1mm
20:00 07:00 19:00

Wind

4.4m/s
0m/s
20:00
3.5 m/s
21:00
4.4 m/s
22:00
3.9 m/s
23:00
3.5 m/s
00:00
2.9 m/s
01:00
2.9 m/s
02:00
2.7 m/s
03:00
2.2 m/s
04:00
1.6 m/s
05:00
1.2 m/s
06:00
2.4 m/s
07:00
2.6 m/s
08:00
1 m/s
09:00
0.8 m/s
10:00
1.4 m/s
11:00
0.8 m/s
12:00
1.3 m/s
13:00
1.6 m/s
14:00
1.6 m/s
15:00
2.1 m/s
16:00
2 m/s
17:00
1.8 m/s
18:00
1.7 m/s
19:00
2.6 m/s
20:00 07:00 19:00

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
91.6 km
5
1.7%

Measurement time: 2026-03-15 20:51

Calculated from PM2.5/PM10

O3
91.6 km
38.98 µg/m3
24.4%

Measurement time: 2026-03-15 20:51

source: OpenWeatherMap

PM2.5
91.6 km
1.43 µg/m3
1.7%

Measurement time: 2026-03-15 20:51

source: OpenWeatherMap

PM10
91.6 km
1.73 µg/m3
1.2%

Measurement time: 2026-03-15 20:51

source: OpenWeatherMap

CO
91.6 km
0.0802 mg/m3
0.6%

Measurement time: 2026-03-15 20:51

source: OpenWeatherMap

NO2
91.6 km
0.35 µg/m3
0.2%

Measurement time: 2026-03-15 20:51

source: OpenWeatherMap

SO2
91.6 km
0.15 µg/m3
0%

Measurement time: 2026-03-15 20:51

source: OpenWeatherMap

Info


Country: Colombia
Latitude: 4.53282
Longitude: -76.10318


Solar Energy

Low
154.1 W/m²
Solar Radiation
Solar Calculator
Calculate energy production for La Unión

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.