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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

Regen
24°C
Regen
Humidity
67%
Wind
2 m/s
Pressure
1011.5 hPa
Direction
76°
Sunrise
05:00
Sunset
17:00
24h Forecast:
Temp.
17° / 24°
Precip.
15.9mm
Max wind
5.2 m/s

Hourly Forecast

20.03
Now
Weather
24°
0.6
20.03
18:00
Weather
24°
0.7
20.03
19:00
Weather
24°
7.1
20.03
20:00
Weather
22°
3.9
20.03
21:00
Weather
20°
0.4
20.03
22:00
Weather
20°
0.2
20.03
23:00
Weather
20°
0.1
21.03
00:00
Weather
19°
0.5
21.03
01:00
Weather
18°
0.2
21.03
02:00
Weather
19°
21.03
03:00
Weather
19°
21.03
04:00
Weather
18°
0.4
21.03
05:00
Weather
18°
21.03
06:00
Weather
18°
21.03
07:00
Weather
18°
21.03
08:00
Weather
18°
21.03
09:00
Weather
17°
21.03
10:00
Weather
17°
21.03
11:00
Weather
18°
21.03
12:00
Weather
19°
21.03
13:00
Weather
20°
0.3
21.03
14:00
Weather
21°
0.6
21.03
15:00
Weather
22°
0.6
21.03
16:00
Weather
21°
0.3
5

Temperature

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

Precipitation

7.1mm
0mm
17:00
0.6mm
18:00
0.7mm
19:00
7.1mm
20:00
3.9mm
21:00
0.4mm
22:00
0.2mm
23:00
0.1mm
00:00
0.5mm
01:00
0.2mm
04:00
0.4mm
13:00
0.3mm
14:00
0.6mm
15:00
0.6mm
16:00
0.3mm
17:00 04:00 16:00

Wind

5.2m/s
0m/s
17:00
2.1 m/s
18:00
1.6 m/s
19:00
1.8 m/s
20:00
3.1 m/s
21:00
1.9 m/s
22:00
1.7 m/s
23:00
1.2 m/s
00:00
2.4 m/s
01:00
2.4 m/s
02:00
1.8 m/s
03:00
1.3 m/s
04:00
1.5 m/s
05:00
1.5 m/s
06:00
1.3 m/s
07:00
1 m/s
08:00
0.8 m/s
09:00
0.9 m/s
10:00
0.9 m/s
11:00
0.9 m/s
12:00
1.3 m/s
13:00
2.3 m/s
14:00
3 m/s
15:00
4.3 m/s
16:00
5.2 m/s
17:00 04:00 16:00

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
23 km
6
2%

Measurement time: 2026-03-20 18:06

Calculated from PM2.5/PM10

O3
23 km
54.76 µg/m3
34.2%

Measurement time: 2026-03-20 18:06

source: OpenWeatherMap

PM10
23 km
3.16 µg/m3
2.3%

Measurement time: 2026-03-20 18:06

source: OpenWeatherMap

PM2.5
23 km
1.51 µg/m3
1.8%

Measurement time: 2026-03-20 18:06

source: OpenWeatherMap

CO
23 km
0.10489 mg/m3
0.7%

Measurement time: 2026-03-20 18:06

source: OpenWeatherMap

NO2
23 km
0.83 µg/m3
0.4%

Measurement time: 2026-03-20 18:06

source: OpenWeatherMap

SO2
23 km
0.44 µg/m3
0.1%

Measurement time: 2026-03-20 18:06

source: OpenWeatherMap

Info


Region: Santiago
Latitude: 19.33915
Longitude: -70.93819


Solar Energy

Moderate
463.3 W/m²
Solar Radiation
Solar Calculator
Calculate energy production for San José de Las Matas

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.