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
San Luis Obispo's air quality — share it
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
Air Quality Index Trend
19h · 1 stnSan 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
Which pollutant is driving the AQI?
PM2.5▲
11.0 µg/m³
PM10
20.55 µg/m³
050100150200300500
What is the weather forecast for San Luis Obispo?
Temperature & Precipitation
PM2.5 Trend
19h · 1 stationPM2.511.0 µg/m³
✓ WHO
Good
PM1020.55 µg/m³
Good
UV INDEX0.7
Low
Station readings (1 station within 25 km)
11.0
Median
11.0
Average
11.0
Low
11.0
High
PM2.5 µg/m³ · Model: 7.0 · Bias: -4.0
What is the 7-day forecast for San Luis Obispo?
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°
Both models agree
Avg diff: 3.8°C
Where are air quality stations near San Luis Obispo?
25
Atascadero-Lewis Avenue, San Luis Obispo, California
36
Atascadero-Lewis Avenue, San Luis Obispo, California
What cities are near San Luis Obispo?
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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.