Air Quality in San Luis Obispo, United States
Partly Cloudy
13.3°C · 67.0% humidity
13.3°
Feels 13.3°
13
Good
Air quality is satisfactory. Enjoy outdoor activities.
1 station
Nearby Monitoring Stations
San Luis Obispo's air quality — share it
AQI Forecast
34
4am
34
54
13
7am
5
13
19
10am
23
26
28
1pm
23
24
25
4pm
26
26
26
7pm
26
27
27
10pm
27
25
25
1am
25
25
Air Quality Index Trend
27h · 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.
67.0%
Humidity
38.7 km/h
Wind NNE
1013.8 hPa
Pressure
0.7
UV Low
GoodModerateUSGUnhealthyVery UnhealthyHazardous
Which pollutant is driving the AQI?
PM2.5
3.1 µg/m³
PM10▲
27.4 µg/m³
050100150200300500
What is the weather forecast for San Luis Obispo?
Temperature & Precipitation
PM2.5 Trend
27h · 1 stationPM2.53.1 µg/m³
✓ WHO
Good
PM1027.4 µg/m³
Good
UV INDEX0.7
Low
Station readings (1 station within 25 km)
3.1
Median
3.1
Average
3.1
Low
3.1
High
PM2.5 µg/m³ · Model: 10.0 · Bias: +6.9
What is the 7-day forecast for San Luis Obispo?
05-29
19.5° 13.2°
05-30
17.5° 11.4°
0.06 mm
05-31
20.1° 13.0°
06-01
19.4° 10.4°
06-02
21.9° 9.8°
06-03
21.1° 8.3°
06-04
19.0° 8.8°
Both models agree
Avg diff: 4.1°C
Where are air quality stations near San Luis Obispo?
17
Atascadero-Lewis Avenue, San Luis Obispo, California
6
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 2026-05-29T14:41 UTC.