What is the air quality in Santa Cruz today?

The current Air Quality Index (AQI) in Santa Cruz is 19 (Good). PM2.5 concentration is 4.5 µg/m³.

What is the temperature in Santa Cruz right now?

The current temperature in Santa Cruz is 13.3°C (feels like 13.3°C). Humidity is 87.1% and wind speed is 10.1 km/h.

Is it safe to go outside in Santa Cruz?

Air quality is satisfactory. Enjoy outdoor activities. The UV Index is 0.0 (Low).

Air Quality in Santa Cruz, United States

Cloudy

13.3°C · 87.1% humidity

13.3°

Feels 13.3°

Good

Air quality is satisfactory. Enjoy outdoor activities.

14 stations

Nearby Monitoring Stations

AQI Forecast

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Air Quality Index Trend

45h · 43 stn

View full history →

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

87.1%

Humidity

10.1 km/h

Wind SE

1013.7 hPa

Pressure

0.0

UV Low

GoodModerateUSGUnhealthyVery UnhealthyHazardous

Which pollutant is driving the AQI?

PM2.5▲

4.5 µg/m³

PM10

13.7 µg/m³

050100150200300500

What is the weather forecast for Santa Cruz?

Temperature & Precipitation

PM2.5 Trend

45h · 43 stations

PM2.54.5 µg/m³ ✓ WHO

Good

PM1013.7 µg/m³

Good

UV INDEX0.0

Low

Station readings (14 stations within 25 km)

4.5

Median

4.66

Average

3.73

Low

7.44

High

PM2.5 µg/m³ · Model: 5.8 · Bias: +1.3

What is the 7-day forecast for Santa Cruz?

10-21

21.2° 13.3°

10-22

26.1° 14.8°

10-23

23.5° 14.0°

10-24

21.6° 13.2°

10-25

25.9° 12.4°

2.38 mm

10-26

21.6° 13.9°

10-27

22.7° 16.7°

Both models agree Avg diff: 3.6°C

Where are air quality stations near Santa Cruz?

UCSC Lower Campus

2.0 km PM2.5: 4.6 µg/m³

UCSC EFH

3.1 km PM2.5: 4.5 µg/m³

East Campus

3.3 km PM2.5: 4.2 µg/m³

Santa Cruz - Soquel Avenue, Santa Cruz, California

3.7 km PM2.5: 6.2 µg/m³

Santa Cruz - Soquel Avenue, Santa Cruz, California

3.7 km PM2.5: 5.3 µg/m³

EHS HWF

3.8 km PM2.5: 4.1 µg/m³

Santa Cruz

3.9 km PM2.5: 4.6 µg/m³

Capitola - New Brighton Middle School

7.4 km PM2.5: 5.6 µg/m³

Scotts Valley

8.5 km PM2.5: 4.6 µg/m³

Felton (Cal-Fire)

9.1 km PM2.5: 4.3 µg/m³

What cities are near Santa Cruz?

20 Live Oak 17 Watsonville 19 Los Gatos 18 Saratoga 19 Campbell 21 Morgan Hill 17 Marina 18 Cupertino 20 Prunedale 16 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 2026-10-21T04:02 UTC.