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San Lorenzo (San Lorenzo) (PR)

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
85.2%
Wind
4 m/s
Pressure
1020.6 hPa
Direction
70°
Sunrise
05:00
Sunset
17:00
24h Forecast:
Temp.
21° / 26°
Precip.
2.4mm
Max wind
4.4 m/s

Hourly Forecast

04.02
Now
Weather
24°
0.4
04.02
16:00
Weather
25°
0.4
04.02
17:00
Weather
26°
0.2
04.02
18:00
Weather
26°
0.3
04.02
19:00
Weather
25°
0.2
04.02
20:00
Weather
25°
0.2
04.02
21:00
Weather
24°
0.2
04.02
22:00
Weather
23°
04.02
23:00
Weather
22°
05.02
00:00
Weather
22°
05.02
01:00
Weather
22°
05.02
02:00
Weather
22°
05.02
03:00
Weather
21°
05.02
04:00
Weather
21°
05.02
05:00
Weather
22°
0.1
05.02
06:00
Weather
21°
05.02
07:00
Weather
21°
05.02
08:00
Weather
21°
05.02
09:00
Weather
21°
05.02
10:00
Weather
21°
05.02
11:00
Weather
21°
05.02
12:00
Weather
22°
05.02
13:00
Weather
22°
0.2
05.02
14:00
Weather
23°
0.2

Temperature

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

Precipitation

0.4mm
0mm
15:00
0.4mm
16:00
0.4mm
17:00
0.2mm
18:00
0.3mm
19:00
0.2mm
20:00
0.2mm
21:00
0.2mm
05:00
0.1mm
13:00
0.2mm
14:00
0.2mm
15:00 02:00 14:00

Wind

4.4m/s
0m/s
15:00
4.2 m/s
16:00
4.4 m/s
17:00
4.3 m/s
18:00
4.4 m/s
19:00
4.4 m/s
20:00
4.4 m/s
21:00
3.4 m/s
22:00
3.2 m/s
23:00
2.9 m/s
00:00
2.5 m/s
01:00
2.4 m/s
02:00
2.4 m/s
03:00
2.6 m/s
04:00
2.5 m/s
05:00
2.7 m/s
06:00
2.3 m/s
07:00
2 m/s
08:00
1.9 m/s
09:00
1.8 m/s
10:00
1.7 m/s
11:00
1.7 m/s
12:00
1.4 m/s
13:00
2.2 m/s
14:00
2.6 m/s
15:00 02:00 14:00

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
25.3 km
12
4%

Measurement time: 2026-02-04 16:03

Calculated from PM2.5/PM10

O3
25.3 km
77.25 µg/m3
48.3%

Measurement time: 2026-02-04 16:03

source: OpenWeatherMap

PM10
25.3 km
7.86 µg/m3
5.6%

Measurement time: 2026-02-04 16:03

source: OpenWeatherMap

PM2.5
25.3 km
3.04 µg/m3
3.6%

Measurement time: 2026-02-04 16:03

source: OpenWeatherMap

CO
25.3 km
0.11832 mg/m3
0.8%

Measurement time: 2026-02-04 16:03

source: OpenWeatherMap

NO2
25.3 km
0.17 µg/m3
0.1%

Measurement time: 2026-02-04 16:03

source: OpenWeatherMap

SO2
25.3 km
0.16 µg/m3
0%

Measurement time: 2026-02-04 16:03

source: OpenWeatherMap

Info


Country: Puerto Rico
Latitude: 18.1894
Longitude: -65.961


Solar Energy

Moderate
454.6 W/m²
Solar Radiation
Solar Calculator
Calculate energy production for San Lorenzo

About Air Quality in San Lorenzo

Air quality in San Lorenzo 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 Lorenzo

  • 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 Lorenzo?

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 Lorenzo

If you're planning outdoor activities in San Lorenzo, 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.