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San José de Las Matas (Santiago) (DO)

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

Partly cloudy
19°C
Partly cloudy
Humidity
91%
Wind
1 m/s
Pressure
1015.9 hPa
Direction
204°
Sunrise
04:00
Sunset
16:00
24h Forecast:
Temp.
19° / 29°
Precip.
2.9mm
Max wind
3.7 m/s

Hourly Forecast

10.04
Now
Weather
19°
10.04
08:00
Weather
19°
10.04
09:00
Weather
20°
10.04
10:00
Weather
19°
10.04
11:00
Weather
19°
10.04
12:00
Weather
23°
10.04
13:00
Weather
24°
10.04
14:00
Weather
26°
10.04
15:00
Weather
27°
0.2
10.04
16:00
Weather
28°
10.04
17:00
Weather
28°
10.04
18:00
Weather
29°
1
10.04
19:00
Weather
28°
0.5
10.04
20:00
Weather
27°
1.1
10.04
21:00
Weather
24°
0.1
10.04
22:00
Weather
23°
10.04
23:00
Weather
21°
11.04
00:00
Weather
20°
11.04
01:00
Weather
20°
11.04
02:00
Weather
20°
11.04
03:00
Weather
20°
11.04
04:00
Weather
19°
11.04
05:00
Weather
19°
11.04
06:00
Weather
19°

Temperature

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

Precipitation

1.1mm
0mm
15:00
0.2mm
18:00
1mm
19:00
0.5mm
20:00
1.1mm
21:00
0.1mm
07:00 18:00 06:00

Wind

3.7m/s
0m/s
07:00
0.9 m/s
08:00
1.6 m/s
09:00
1.2 m/s
10:00
1.6 m/s
11:00
1.4 m/s
12:00
1.3 m/s
13:00
2 m/s
14:00
2.2 m/s
15:00
2.8 m/s
16:00
3.2 m/s
17:00
2.7 m/s
18:00
2.3 m/s
19:00
2.6 m/s
20:00
3.7 m/s
21:00
2.6 m/s
22:00
2.9 m/s
23:00
2.9 m/s
00:00
2.4 m/s
01:00
2 m/s
02:00
1.4 m/s
03:00
1.1 m/s
04:00
0.6 m/s
05:00
1 m/s
06:00
0.9 m/s
07:00 18:00 06:00

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
62.5 km
18
6%

Measurement time: 2026-04-10 09:07

Calculated from PM2.5/PM10

O3
62.5 km
30.54 µg/m3
19.1%

Measurement time: 2026-04-10 09:07

source: OpenWeatherMap

PM10
62.5 km
11.64 µg/m3
8.3%

Measurement time: 2026-04-10 09:07

source: OpenWeatherMap

PM2.5
62.5 km
4.49 µg/m3
5.3%

Measurement time: 2026-04-10 09:07

source: OpenWeatherMap

CO
62.5 km
0.10309 mg/m3
0.7%

Measurement time: 2026-04-10 09:07

source: OpenWeatherMap

NO2
62.5 km
1.36 µg/m3
0.7%

Measurement time: 2026-04-10 09:07

source: OpenWeatherMap

SO2
62.5 km
0.84 µg/m3
0.2%

Measurement time: 2026-04-10 09:07

source: OpenWeatherMap

Info


Region: Santiago
Latitude: 19.33915
Longitude: -70.93819

About Air Quality in San José de Las Matas

Air quality in San José de Las Matas 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 San José de Las Matas

  • 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 San José de Las Matas?

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 San José de Las Matas

If you're planning outdoor activities in San José de Las Matas, 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.