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)
28
Good
Watsonville, California
Last updated: ... (Local time)
Good
Fine
Moderate
Poor
Very poor
Hazardous
4.39 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
21.47 μg/m³
0
55
155
255
425
605+
30.20 ppb
0
55
71
86
201
201+
0.91 ppb
0
36
76
186
605
1005+
4.32 ppb
0
54
101
361
1250
2050+
0.21 ppm
0
4.5
9.5
12.5
230.5
50.5+
Pollen Level
Low
Watsonville, California
Watsonville, California
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AQI 31
Good
4.45μg/m³
PM2.5
19.81μg/m³
PM10
33.88ppb
O3
0.93ppb
SO2
4.29ppb
NO2
0.12ppm
CO
AQI 32
Good
4.45μg/m³
PM2.5
20.16μg/m³
PM10
35.08ppb
O3
0.90ppb
SO2
4.32ppb
NO2
0.24ppm
CO
AQI 34
Good
4.51μg/m³
PM2.5
25.94μg/m³
PM10
36.98ppb
O3
0.95ppb
SO2
4.46ppb
NO2
0.20ppm
CO
AQI 32
Good
4.07μg/m³
PM2.5
18.32μg/m³
PM10
35.00ppb
O3
0.90ppb
SO2
4.32ppb
NO2
0.24ppm
CO
AQI 32
Good
5.22μg/m³
PM2.5
23.66μg/m³
PM10
34.82ppb
O3
0.90ppb
SO2
4.32ppb
NO2
0.24ppm
CO
AQI 33
Good
6.12μg/m³
PM2.5
29.71μg/m³
PM10
32.02ppb
O3
0.91ppb
SO2
4.33ppb
NO2
0.19ppm
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 12:00:00 on 2025-06-06.
In the last 24 hours, the best air quality in Watsonville, California was observed at 10:00:00 on 2025-06-06.
As of now, the AQI in Watsonville, California is 28, 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 4.387 μg/m3.
The PM10 concentration in Watsonville, California is 21.467 μg/m3 at the moment.
The current carbon monoxide (CO) concentration in Watsonville, California is 0.209 ppm.
Currently, Watsonville, California has a sulfur dioxide (SO2) concentration of 0.908 ppb.
The current ozone (O3) level in Watsonville, California at the moment is 30.202 ppm.
Nitrogen dioxide (NO2) level in Watsonville, California at the moment is 4.318 ppb.
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