Air Quality in Watsonville, United States

Drizzle
14.4°C · 64.6% humidity
14.4°
Feels 14.4°
22
Good
Air quality is satisfactory. Enjoy outdoor activities.
10 stations

Nearby Monitoring Stations

AQI Forecast Calibrated
21 4pm
21
8
8 7pm
8
8
8 10pm
8
8
8 1am
8
8
21 4am
21
33
46 7am
46
71
46 10am
46
46
71 1pm
46
46
Station readings
21
21
CAMS model adj -4
25
12
12
12
12
12
12
12
12
12
12
12
25
25
37
50
50
75
50
50
50
75
50
50
AD 728×90

PM2.5 Trend (24h)

22h · 38 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

PM2.55.23 µg/m³ ✓ WHO
Good
PM1027.45 µg/m³
Good
UV INDEX2.9
Moderate
AD 300×250
Station readings (10 stations within 25 km)
5.23
Median
5.03
Average
3.19
Low
6.88
High
PM2.5 µg/m³ · Model: 7.4 · Bias: +2.2

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?

18
Watsonville - Starlight Elementary School
1.9 km PM2.5: 4.4 µg/m³
25
Aromas School
10.2 km PM2.5: 6.1 µg/m³
26
Aptos
11.9 km PM2.5: 6.3 µg/m³
13
Moss Landing
11.9 km PM2.5: 3.2 µg/m³
16
Elkhorn Elementary School
13.1 km PM2.5: 3.9 µg/m³
15
Castroville
15.9 km PM2.5: 3.7 µg/m³
21
Prunedale
17.0 km PM2.5: 5.1 µg/m³
23
Capitola - New Brighton Middle School
18.6 km PM2.5: 5.6 µg/m³
24
San Juan Bautista
21.3 km PM2.5: 5.8 µg/m³
23
Santa Cruz
22.1 km PM2.5: 5.4 µg/m³

What cities are near Watsonville?

15 Prunedale 25 Gilroy 25 Live Oak 25 Santa Cruz 12 Marina 31 Morgan Hill 13 Salinas 25 Hollister 12 Seaside 11 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 2026-04-09T19:27 UTC.