Stay updated with real-time air quality in Watsonville, California featuring accurate data on AQI, PM2.5, PM10, O3, NO2, SO2, and CO levels. Use our interactive map and detailed forecasts to monitor pollution trends, manage health risks, and plan your daily activities with confidence.
Live AQI (Air Quality Index)
26
Good
Watsonville, California
Last updated: ... (Local time)
Good
Fine
Moderate
Poor
Very poor
Hazardous
2.69 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
28.47 μg/m³
0
55
155
255
425
605+
11.79 ppb
0
55
71
86
201
201+
0.63 ppb
0
36
76
186
605
1005+
5.41 ppb
0
54
101
361
1250
2050+
0.25 ppm
0
4.5
9.5
12.5
230.5
50.5+
Pollen Level
Low
Watsonville, California
Watsonville, California
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AQI 15
Good
1.64μg/m³
PM2.5
5.63μg/m³
PM10
16.24ppb
O3
0.70ppb
SO2
1.59ppb
NO2
0.20ppm
CO
AQI 11
Good
2.08μg/m³
PM2.5
4.74μg/m³
PM10
11.20ppb
O3
0.66ppb
SO2
3.50ppb
NO2
0.23ppm
CO
AQI 11
Good
2.15μg/m³
PM2.5
9.63μg/m³
PM10
11.15ppb
O3
0.72ppb
SO2
3.84ppb
NO2
0.20ppm
CO
AQI 11
Good
2.00μg/m³
PM2.5
3.98μg/m³
PM10
11.04ppb
O3
0.66ppb
SO2
3.42ppb
NO2
0.23ppm
CO
AQI 11
Good
2.17μg/m³
PM2.5
5.80μg/m³
PM10
11.62ppb
O3
0.66ppb
SO2
3.65ppb
NO2
0.23ppm
CO
AQI 12
Good
2.33μg/m³
PM2.5
5.27μg/m³
PM10
13.49ppb
O3
0.68ppb
SO2
2.64ppb
NO2
0.22ppm
CO
Air quality and pollutant data for California, USA are sourced from ground-based monitors and satellites, adhering to US EPA standards. Machine learning and advanced algorithms enhance the data by incorporating local variables like traffic and population density, ensuring high accuracy and dependability.
Source: Ambee Data Sources
The air quality information for Watsonville, California is updated every hour for accuracy.
In the past 24 hours, the air quality in Watsonville, California was at its worst at 08:00:00 on 2025-07-14.
In the last 24 hours, the best air quality in Watsonville, California was observed at 11:00:00 on 2025-07-14.
As of now, the AQI in Watsonville, California is 26, indicating Good conditions.
Watsonville, California air has the highest levels of PM10.
Poor air quality in Watsonville, California means it's advisable to stay indoors and wear a mask for your protection.
PM2.5 levels in Watsonville, California are currently 2.692 μg/m3.
The PM10 concentration in Watsonville, California is 28.474 μg/m3 at the moment.
The current carbon monoxide (CO) concentration in Watsonville, California is 0.246 ppm.
Currently, Watsonville, California has a sulfur dioxide (SO2) concentration of 0.634 ppb.
The current ozone (O3) level in Watsonville, California at the moment is 11.788 ppm.
Nitrogen dioxide (NO2) level in Watsonville, California at the moment is 5.407 ppb.
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