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)
27
Good
Watsonville, California
Last updated: ... (Local time)
Good
Fine
Moderate
Poor
Very poor
Hazardous
4.63 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
23.15 μg/m³
0
55
155
255
425
605+
18.27 ppb
0
55
71
86
201
201+
0.62 ppb
0
36
76
186
605
1005+
4.49 ppb
0
54
101
361
1250
2050+
0.22 ppm
0
4.5
9.5
12.5
230.5
50.5+
Pollen Level
Low
Watsonville, California
Watsonville, California
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AQI 26
Good
2.33μg/m³
PM2.5
9.89μg/m³
PM10
27.67ppb
O3
0.63ppb
SO2
4.69ppb
NO2
0.20ppm
CO
AQI 25
Good
2.07μg/m³
PM2.5
7.75μg/m³
PM10
26.97ppb
O3
0.35ppb
SO2
4.94ppb
NO2
0.23ppm
CO
AQI 23
Good
2.56μg/m³
PM2.5
10.86μg/m³
PM10
25.03ppb
O3
0.64ppb
SO2
4.75ppb
NO2
0.20ppm
CO
AQI 25
Good
1.86μg/m³
PM2.5
6.71μg/m³
PM10
27.00ppb
O3
0.34ppb
SO2
4.93ppb
NO2
0.23ppm
CO
AQI 25
Good
2.42μg/m³
PM2.5
9.47μg/m³
PM10
26.79ppb
O3
0.35ppb
SO2
5.05ppb
NO2
0.23ppm
CO
AQI 27
Good
5.01μg/m³
PM2.5
12.81μg/m³
PM10
28.00ppb
O3
0.61ppb
SO2
4.74ppb
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 05:00:00 on 2025-07-24.
In the last 24 hours, the best air quality in Watsonville, California was observed at 02:00:00 on 2025-07-24.
As of now, the AQI in Watsonville, California is 23, indicating Good conditions.
Watsonville, California air has the highest levels of O3.
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 2.691 μg/m3.
The PM10 concentration in Watsonville, California is 7.089 μg/m3 at the moment.
The current carbon monoxide (CO) concentration in Watsonville, California is 0.222 ppm.
Currently, Watsonville, California has a sulfur dioxide (SO2) concentration of 0.614 ppb.
The current ozone (O3) level in Watsonville, California at the moment is 24.541 ppm.
Nitrogen dioxide (NO2) level in Watsonville, California at the moment is 4.794 ppb.
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