Is time to run? ⚠️☢️☣️

El Cerrito (California) (US)

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

Fog
9°C
Fog
Humidity
90.6%
Wind
3 m/s
Pressure
1024.2 hPa
Direction
50°
Sunrise
05:00
Sunset
17:00
24h Forecast:
Temp.
7° / 17°
Precip.
0mm
Max wind
5 m/s

Hourly Forecast

04.02
Now
Weather
04.02
10:00
Weather
04.02
11:00
Weather
04.02
12:00
Weather
04.02
13:00
Weather
04.02
14:00
Weather
04.02
15:00
Weather
04.02
16:00
Weather
04.02
17:00
Weather
04.02
18:00
Weather
12°
04.02
19:00
Weather
13°
04.02
20:00
Weather
15°
04.02
21:00
Weather
16°
04.02
22:00
Weather
16°
04.02
23:00
Weather
17°
05.02
00:00
Weather
16°
05.02
01:00
Weather
15°
05.02
02:00
Weather
13°
05.02
03:00
Weather
11°
05.02
04:00
Weather
10°
05.02
05:00
Weather
05.02
06:00
Weather
05.02
07:00
Weather
05.02
08:00
Weather

Temperature

17°C
7°C
09:00
9°C
10:00
8°C
11:00
8°C
12:00
7°C
13:00
7°C
14:00
7°C
15:00
7°C
16:00
7°C
17:00
9°C
18:00
12°C
19:00
13°C
20:00
15°C
21:00
16°C
22:00
16°C
23:00
17°C
00:00
16°C
01:00
15°C
02:00
13°C
03:00
11°C
04:00
10°C
05:00
9°C
06:00
9°C
07:00
9°C
08:00
8°C
09:00 20:00 08:00

Precipitation

0mm
0mm
09:00 20:00 08:00

Wind

5m/s
0m/s
09:00
2.7 m/s
10:00
2.8 m/s
11:00
2.7 m/s
12:00
2.9 m/s
13:00
3.4 m/s
14:00
3.8 m/s
15:00
4.2 m/s
16:00
4.4 m/s
17:00
4.4 m/s
18:00
4.5 m/s
19:00
4.7 m/s
20:00
5 m/s
21:00
4.8 m/s
22:00
4.4 m/s
23:00
4.5 m/s
00:00
4.6 m/s
01:00
4.9 m/s
02:00
4.4 m/s
03:00
4 m/s
04:00
3.6 m/s
05:00
3.4 m/s
06:00
3.4 m/s
07:00
3.9 m/s
08:00
4.3 m/s
09:00 20:00 08:00

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
89.2 km
136
45.3%

Measurement time: 2026-02-04 07:21

Calculated from PM2.5/PM10

PM2.5
89.2 km
50.03 µg/m3
59.6%

Measurement time: 2026-02-04 07:21

source: OpenWeatherMap

O3
36 km
78.33 µg/m3
49%

Measurement time: 2026-02-04 07:42

source: OpenWeatherMap

PM10
89.2 km
60.41 µg/m3
43.2%

Measurement time: 2026-02-04 07:21

source: OpenWeatherMap

NO2
89.2 km
44.04 µg/m3
22%

Measurement time: 2026-02-04 07:21

source: OpenWeatherMap

CO
89.2 km
0.49035 mg/m3
3.5%

Measurement time: 2026-02-04 07:21

source: OpenWeatherMap

SO2
89.2 km
2.87 µg/m3
0.8%

Measurement time: 2026-02-04 07:21

source: OpenWeatherMap

Info


Region: California
Latitude: 37.91576
Longitude: -122.31164


Solar Energy

Night
0 W/m²
Solar Radiation
Solar Calculator
Calculate energy production for El Cerrito

About Air Quality in El Cerrito

Air quality in El Cerrito 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 El Cerrito

  • 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 El Cerrito?

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 El Cerrito

If you're planning outdoor activities in El Cerrito, 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.