Air Quality in Watsonville, United States

Drizzle
14.4°C · 64.6% humidity
14.4°
Feels 14.4°
20
Good
Air quality is satisfactory. Enjoy outdoor activities.
10 stations

Nearby Monitoring Stations

AQI Forecast Calibrated
21 5pm
20
20
14 8pm
14
14
14 11pm
14
14
14 2am
14
27
27 5am
39
52
52 8am
77
52
52 11am
52
77
52 2pm
52
27
Station readings
21
20
20
CAMS model adj +2
12
12
12
12
12
12
12
12
12
12
12
25
25
37
50
50
75
50
50
50
75
50
50
25
AD 728×90

PM2.5 Trend (24h)

23h · 36 stations
64.6%
Humidity
20.9 km/h
Wind WSW
1011.9 hPa
Pressure
2.9
UV Moderate
GoodModerateUSGUnhealthyVery UnhealthyHazardous

What is the weather forecast for Watsonville?

Temperature & Precipitation

PM2.54.93 µg/m³ ✓ WHO
Good
PM1027.45 µg/m³
Good
UV INDEX2.9
Moderate
AD 300×250
Station readings (10 stations within 25 km)
4.93
Median
4.78
Average
3.36
Low
5.81
High
PM2.5 µg/m³ · Model: 7.4 · Bias: +2.5

What is the 7-day forecast for Watsonville?

04-09
17.0° 13.1°
1.13 mm
04-10
18.1° 9.4°
0.75 mm
04-11
16.9° 9.1°
1.63 mm
04-12
12.6° 7.9°
2.38 mm
04-13
15.4° 3.8°
0.69 mm
04-14
18.1° 4.3°
04-15
21.0° 8.5°
Both models agree Avg diff: 2.3°C

Where are air quality stations near Watsonville?

19
Watsonville - Starlight Elementary School
1.9 km PM2.5: 4.5 µg/m³
23
Aromas School
10.2 km PM2.5: 5.6 µg/m³
21
Aptos
11.9 km PM2.5: 5.0 µg/m³
16
Moss Landing
11.9 km PM2.5: 3.9 µg/m³
16
Elkhorn Elementary School
13.1 km PM2.5: 3.8 µg/m³
16
Castroville
15.9 km PM2.5: 3.9 µg/m³
16
Prunedale
17.0 km PM2.5: 3.9 µg/m³
22
Capitola - New Brighton Middle School
18.6 km PM2.5: 5.2 µg/m³
21
San Juan Bautista
21.3 km PM2.5: 5.1 µg/m³
20
Santa Cruz
22.1 km PM2.5: 4.7 µg/m³

What cities are near Watsonville?

15 Prunedale 24 Gilroy 23 Live Oak 23 Santa Cruz 13 Marina 30 Morgan Hill 14 Salinas 24 Hollister 13 Seaside 12 Pacific Grove

Data sources: AQI from ground-level monitoring stations via AQICN. Weather forecast from ECMWF (IFS & CAMS models). AQI calculated using US EPA standard. Updated 2026-04-09T20:29 UTC.