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Seaside (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

Clear sky
12°C
Clear sky
Humidity
59.3%
Wind
6 m/s
Pressure
1026 hPa
Direction
58°
Sunrise
05:00
Sunset
17:00
24h Forecast:
Temp.
10° / 20°
Precip.
0mm
Max wind
6.4 m/s

Hourly Forecast

29.01
Now
Weather
12°
6
29.01
18:00
Weather
15°
6
29.01
19:00
Weather
18°
6
29.01
20:00
Weather
19°
6
29.01
21:00
Weather
20°
29.01
22:00
Weather
19°
6
29.01
23:00
Weather
17°
6
30.01
00:00
Weather
16°
6
30.01
01:00
Weather
15°
30.01
02:00
Weather
13°
30.01
03:00
Weather
12°
30.01
04:00
Weather
13°
30.01
05:00
Weather
13°
30.01
06:00
Weather
13°
30.01
07:00
Weather
12°
30.01
08:00
Weather
12°
5
30.01
09:00
Weather
11°
30.01
10:00
Weather
12°
30.01
11:00
Weather
12°
30.01
12:00
Weather
11°
30.01
13:00
Weather
11°
30.01
14:00
Weather
10°
30.01
15:00
Weather
11°
5
30.01
16:00
Weather
12°
5

Temperature

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

Precipitation

0mm
0mm
17:00 04:00 16:00

Wind

6.4m/s
0m/s
17:00
5.9 m/s
18:00
6 m/s
19:00
6 m/s
20:00
5.6 m/s
21:00
4.9 m/s
22:00
5.5 m/s
23:00
6.3 m/s
00:00
6.4 m/s
01:00
4.8 m/s
02:00
3.7 m/s
03:00
3.3 m/s
04:00
3.1 m/s
05:00
4.1 m/s
06:00
4.8 m/s
07:00
4.9 m/s
08:00
5.4 m/s
09:00
4.8 m/s
10:00
4.6 m/s
11:00
4.3 m/s
12:00
4 m/s
13:00
4.1 m/s
14:00
4.6 m/s
15:00
5.4 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
81.3 km
53
17.7%

Measurement time: 2026-01-29 17:41

Calculated from PM2.5/PM10

O3
81.3 km
60.53 µg/m3
37.8%

Measurement time: 2026-01-29 17:41

source: OpenWeatherMap

PM2.5
81.3 km
13.2 µg/m3
15.7%

Measurement time: 2026-01-29 17:41

source: OpenWeatherMap

PM10
81.3 km
17.96 µg/m3
12.8%

Measurement time: 2026-01-29 17:41

source: OpenWeatherMap

NO2
81.3 km
4.21 µg/m3
2.1%

Measurement time: 2026-01-29 17:41

source: OpenWeatherMap

CO
81.3 km
0.20925 mg/m3
1.5%

Measurement time: 2026-01-29 17:41

source: OpenWeatherMap

SO2
81.3 km
1.38 µg/m3
0.4%

Measurement time: 2026-01-29 17:41

source: OpenWeatherMap

Info


Region: California
Latitude: 36.61107
Longitude: -121.85162


Solar Energy

Moderate
480.1 W/m²
Solar Radiation
Solar Calculator
Calculate energy production for Seaside

About Air Quality in Seaside

Air quality in Seaside 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 Seaside

  • 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 Seaside?

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 Seaside

If you're planning outdoor activities in Seaside, 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.