Air Quality in Watsonville, United States

Windy
27.1°C · 36.9% humidity
27.1°
Feels 27.1°
20
Good
Air quality is satisfactory. Enjoy outdoor activities.
10 stations

Nearby Monitoring Stations

AQI Forecast
27 12pm
27
27
20 3pm
22
23
24 6pm
25
26
33 9pm
33
27
27 12am
27
27
34 3am
34
34
34 6am
34
34
34 9am
34
34
AD 728×90

Air Quality Index Trend

46h · 39 stn

Watsonville's air quality is primarily affected by vehicle emissions and industrial activity. Seasonal wildfire smoke and weather patterns can cause periodic air quality deterioration.

36.9%
Humidity
43.2 km/h
Wind SSW
1006.9 hPa
Pressure
24.9
UV Extreme
GoodModerateUSGUnhealthyVery UnhealthyHazardous

Which pollutant is driving the AQI?

PM2.5▲
20
4.77 µg/m³
PM10
19
20.55 µg/m³
050100150200300500

What is the weather forecast for Watsonville?

Temperature & Precipitation

PM2.5 Trend

46h · 39 stations
PM2.54.77 µg/m³ ✓ WHO
Good
PM1020.55 µg/m³
Good
UV INDEX24.9
Extreme
AD 300×250
Station readings (10 stations within 25 km)
4.77
Median
5.97
Average
4.56
Low
7.81
High
PM2.5 µg/m³ · Model: 10.0 · Bias: +5.2

What is the 7-day forecast for Watsonville?

07-21
28.5° 11.0°
07-22
30.7° 15.4°
0.06 mm
07-23
25.0° 15.0°
0.06 mm
07-24
30.5° 12.1°
0.06 mm
07-25
26.9° 12.4°
0.06 mm
07-26
29.1° 10.7°
0.06 mm
07-27
27.2° 11.3°
0.06 mm
Both models agree Avg diff: 3.2°C

Where are air quality stations near Watsonville?

19
Watsonville - Starlight Elementary School
1.9 km PM2.5: 4.6 µg/m³
21
Aromas School
10.2 km PM2.5: 5.0 µg/m³
23
Aptos
11.9 km PM2.5: 5.5 µg/m³
32
Moss Landing
11.9 km PM2.5: 7.8 µg/m³
27
Elkhorn Elementary School
13.1 km PM2.5: 6.5 µg/m³
32
Castroville
15.9 km PM2.5: 7.6 µg/m³
22
Prunedale
17.0 km PM2.5: 5.3 µg/m³
26
Capitola - New Brighton Middle School
18.6 km PM2.5: 6.2 µg/m³
21
San Juan Bautista
21.3 km PM2.5: 5.1 µg/m³
25
Santa Cruz
22.1 km PM2.5: 6.1 µg/m³

What cities are near Watsonville?

22 Prunedale 21 Gilroy 25 Live Oak 22 Santa Cruz 28 Marina 29 Morgan Hill 26 Salinas 26 Hollister 27 Seaside 22 Pacific Grove
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Data sources: AQI from ground-level monitoring stations via AQICN. Weather forecast from ECMWF (IFS & CAMS models). AQI calculated using US EPA standard. Updated 2026-07-21T22:17 UTC.