San Marcos Real-time Air Quality Index (AQI) & Pollen Report - Air Matters

San Marcos

San Diego County, California

2025-12-20 03:00

AQI (US)

Moderate

Pollutants|Pollens

PM2.5

μg/m³

9.3

PM10

μg/m³

14

Weather

13℃

92%

13 kph

0 of 11

Historical Data

Data Sources

http://www.airnow.gov/

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Cities Nearby

Lake San Marcos

Rancho Santa Fe

Fairbanks Ranch