Air Quality in San Luis Obispo, United States

Windy
14.2°C · 54.0% humidity
14.2°
Feels 14.2°
46
Good
Air quality is satisfactory. Enjoy outdoor activities.
1 station

Nearby Monitoring Stations

AQI Forecast
34 5pm
34
34
46 8pm
43
40
31 11pm
30
29
27 2am
26
26
26 5am
25
25
25 8am
25
25
25 11am
25
25
25 2pm
25
25
AD 728×90

Air Quality Index Trend

19h · 1 stn

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

54.0%
Humidity
47.4 km/h
Wind NNW
1013.8 hPa
Pressure
0.7
UV Low
GoodModerateUSGUnhealthyVery UnhealthyHazardous
PM2.5
46
11.0 µg/m³
PM10
19
20.55 µg/m³
050100150200300500

Temperature & Precipitation

PM2.5 Trend

19h · 1 station
PM2.511.0 µg/m³ ✓ WHO
Good
PM1020.55 µg/m³
Good
UV INDEX0.7
Low
AD 300×250
11.0
Median
11.0
Average
11.0
Low
11.0
High
PM2.5 µg/m³ · Model: 7.0 · Bias: -4.0
06-09
18.0° 13.4°
06-10
23.1° 12.6°
06-11
21.7° 13.5°
06-12
19.3° 11.8°
06-13
23.3° 11.8°
06-14
25.1° 12.2°
06-15
18.4° 12.3°
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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 2026-06-09T03:20 UTC.