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Arecibo (Arecibo) (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

Partly cloudy
25°C
Partly cloudy
Humidity
87.4%
Wind
1 m/s
Pressure
1015 hPa
Direction
96°
Sunrise
05:00
Sunset
17:00
24h Forecast:
Temp.
23° / 25°
Precip.
31.6mm
Max wind
10.9 m/s

Hourly Forecast

02.02
Now
Weather
25°
02.02
01:00
Weather
25°
02.02
02:00
Weather
24°
02.02
03:00
Weather
24°
0.6
02.02
04:00
Weather
24°
0.3
6
02.02
05:00
Weather
24°
0.9
7
02.02
06:00
Weather
23°
1.6
6
02.02
07:00
Weather
23°
0.5
6
02.02
08:00
Weather
23°
0.3
02.02
09:00
Weather
24°
1.2
02.02
10:00
Weather
24°
1.4
02.02
11:00
Weather
24°
0.6
5
02.02
12:00
Weather
24°
0.4
6
02.02
13:00
Weather
25°
0.6
6
02.02
14:00
Weather
25°
1.6
8
02.02
15:00
Weather
25°
3.1
9
02.02
16:00
Weather
24°
2.9
9
02.02
17:00
Weather
24°
2.6
10
02.02
18:00
Weather
24°
2.3
11
02.02
19:00
Weather
24°
4
11
02.02
20:00
Weather
23°
2.6
10
02.02
21:00
Weather
23°
1.7
10
02.02
22:00
Weather
23°
1.5
10
02.02
23:00
Weather
23°
0.9
11

Temperature

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

Precipitation

4mm
0mm
03:00
0.6mm
04:00
0.3mm
05:00
0.9mm
06:00
1.6mm
07:00
0.5mm
08:00
0.3mm
09:00
1.2mm
10:00
1.4mm
11:00
0.6mm
12:00
0.4mm
13:00
0.6mm
14:00
1.6mm
15:00
3.1mm
16:00
2.9mm
17:00
2.6mm
18:00
2.3mm
19:00
4mm
20:00
2.6mm
21:00
1.7mm
22:00
1.5mm
23:00
0.9mm
00:00 11:00 23:00

Wind

10.9m/s
0m/s
00:00
0.9 m/s
01:00
1.2 m/s
02:00
1.2 m/s
03:00
1.7 m/s
04:00
6 m/s
05:00
6.5 m/s
06:00
6.2 m/s
07:00
5.5 m/s
08:00
4.3 m/s
09:00
4.5 m/s
10:00
4.8 m/s
11:00
5.3 m/s
12:00
5.7 m/s
13:00
6.2 m/s
14:00
8.3 m/s
15:00
9.1 m/s
16:00
9.4 m/s
17:00
9.8 m/s
18:00
10.5 m/s
19:00
10.9 m/s
20:00
10.3 m/s
21:00
9.7 m/s
22:00
10 m/s
23:00
10.7 m/s
00:00 11:00 23:00

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
9.4 km
15
5%

Measurement time: 2026-02-01 23:47

Calculated from PM2.5/PM10

O3
9.4 km
44.45 µg/m3
27.8%

Measurement time: 2026-02-01 23:47

source: OpenWeatherMap

PM10
9.4 km
9.36 µg/m3
6.7%

Measurement time: 2026-02-01 23:47

source: OpenWeatherMap

PM2.5
9.4 km
3.73 µg/m3
4.4%

Measurement time: 2026-02-01 23:47

source: OpenWeatherMap

CO
9.4 km
0.10708 mg/m3
0.8%

Measurement time: 2026-02-01 23:47

source: OpenWeatherMap

NO2
9.4 km
0.28 µg/m3
0.1%

Measurement time: 2026-02-01 23:47

source: OpenWeatherMap

SO2
9.4 km
0.21 µg/m3
0.1%

Measurement time: 2026-02-01 23:47

source: OpenWeatherMap

Info


Country: Puerto Rico
Region: Arecibo
Latitude: 18.47245
Longitude: -66.71573


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About Air Quality in Arecibo

Air quality in Arecibo 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 Arecibo

  • 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 Arecibo?

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 Arecibo

If you're planning outdoor activities in Arecibo, 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.