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East Palo Alto (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

Heavy rain showers
15°C
Heavy rain showers
Humidity
82.9%
Wind
5 m/s
Pressure
1011.1 hPa
Direction
147°
Sunrise
04:00
Sunset
16:00
24h Forecast:
Temp.
13° / 19°
Precip.
17.1mm
Max wind
6.3 m/s

Hourly Forecast

10.04
Now
Weather
15°
1.5
10.04
15:00
Weather
15°
10.04
16:00
Weather
16°
10.04
17:00
Weather
17°
1.1
10.04
18:00
Weather
18°
0.2
10.04
19:00
Weather
18°
0.3
10.04
20:00
Weather
18°
0.1
10.04
21:00
Weather
19°
10.04
22:00
Weather
19°
0.2
5
10.04
23:00
Weather
18°
0.3
6
11.04
00:00
Weather
18°
0.1
6
11.04
01:00
Weather
17°
0.2
6
11.04
02:00
Weather
16°
0.5
6
11.04
03:00
Weather
15°
3.6
11.04
04:00
Weather
14°
7.8
11.04
05:00
Weather
14°
0.4
11.04
06:00
Weather
14°
11.04
07:00
Weather
14°
0.3
11.04
08:00
Weather
14°
11.04
09:00
Weather
14°
11.04
10:00
Weather
14°
11.04
11:00
Weather
13°
0.3
11.04
12:00
Weather
13°
0.2
11.04
13:00
Weather
13°

Temperature

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

Precipitation

7.8mm
0mm
14:00
1.5mm
17:00
1.1mm
18:00
0.2mm
19:00
0.3mm
20:00
0.1mm
22:00
0.2mm
23:00
0.3mm
00:00
0.1mm
01:00
0.2mm
02:00
0.5mm
03:00
3.6mm
04:00
7.8mm
05:00
0.4mm
07:00
0.3mm
11:00
0.3mm
12:00
0.2mm
14:00 01:00 13:00

Wind

6.3m/s
0m/s
14:00
4.5 m/s
15:00
3.9 m/s
16:00
3.3 m/s
17:00
3.6 m/s
18:00
5 m/s
19:00
4.5 m/s
20:00
4.5 m/s
21:00
4.8 m/s
22:00
5.1 m/s
23:00
6.2 m/s
00:00
6.3 m/s
01:00
5.9 m/s
02:00
5.5 m/s
03:00
4.7 m/s
04:00
3.2 m/s
05:00
3.8 m/s
06:00
3.6 m/s
07:00
4.3 m/s
08:00
4 m/s
09:00
3.7 m/s
10:00
3.5 m/s
11:00
4 m/s
12:00
4.1 m/s
13:00
3.8 m/s
14:00 01:00 13:00

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
41.2 km
6
2%

Measurement time: 2026-04-10 13:48

Calculated from PM2.5/PM10

O3
41.2 km
74.57 µg/m3
46.6%

Measurement time: 2026-04-10 13:48

source: OpenWeatherMap

PM10
41.2 km
2.78 µg/m3
2%

Measurement time: 2026-04-10 13:48

source: OpenWeatherMap

PM2.5
41.2 km
1.63 µg/m3
1.9%

Measurement time: 2026-04-10 13:48

source: OpenWeatherMap

CO
41.2 km
0.11492 mg/m3
0.8%

Measurement time: 2026-04-10 13:48

source: OpenWeatherMap

NO2
41.2 km
1.63 µg/m3
0.8%

Measurement time: 2026-04-10 13:48

source: OpenWeatherMap

SO2
41.2 km
0.78 µg/m3
0.2%

Measurement time: 2026-04-10 13:48

source: OpenWeatherMap

Info


Region: California
Latitude: 37.46883
Longitude: -122.14108


Solar Energy

Moderate
303.2 W/m²
Solar Radiation
Solar Calculator
Calculate energy production for East Palo Alto

About Air Quality in East Palo Alto

Air quality in East Palo Alto 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 East Palo Alto

  • 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 East Palo Alto?

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 East Palo Alto

If you're planning outdoor activities in East Palo Alto, 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.