Station
San Ysidro
San Ysidro, San Diego, California, United States · Airnow
Live AQI
50Good
0GoodUnhealthy500
GoodModerateSensitiveUnhealthyVery UnhealthyHazardous
Sensor onlineUpdated local timeLast 24 hours
min 42 · avg 51 · max 58
Fri 18:3124 hoursSat 18:01
Conditions
25°C
Sunny
- Humidity
- 80%
- Wind
- 11 km/h
- Feels
- 28°C
Pollutants
PM2.5
14
µg/m³
PM10
29
µg/m³
NO₂
5
µg/m³
SO₂
2
µg/m³
O₃
39
µg/m³
CO
193
µg/m³
Coordinates
32.553, -117.047
Centroid of monitored stations
Stations
1
Reporting in this area
Spread
50 – 50
Cleanest to worst station reading
