What is the air quality in San Luis Obispo today?

The current Air Quality Index (AQI) in San Luis Obispo is 26 (Good). PM2.5 concentration is 6.2 µg/m³.

What is the temperature in San Luis Obispo right now?

The current temperature in San Luis Obispo is 23.6°C (feels like 23.6°C). Humidity is 37.4% and wind speed is 34.6 km/h.

Is it safe to go outside in San Luis Obispo?

Air quality is satisfactory. Enjoy outdoor activities. The UV Index is 0.0 (Low).

Air Quality in San Luis Obispo, United States

Clear

23.6°C · 37.4% humidity

23.6°

Feels 23.6°

Good

Air quality is satisfactory. Enjoy outdoor activities.

1 station

Nearby Monitoring Stations

AQI Forecast

— 10am

—

— 1pm

—

— 4pm

—

— 7pm

—

— 10pm

—

— 1am

—

— 4am

—

— 7am

—

Air Quality Index Trend

13h · 1 stn

View full history →

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.

37.4%

Humidity

34.6 km/h

Wind W

1017.4 hPa

Pressure

0.0

UV Low

GoodModerateUSGUnhealthyVery UnhealthyHazardous

Which pollutant is driving the AQI?

PM2.5▲

6.2 µg/m³

PM10

13.7 µg/m³

050100150200300500

What is the weather forecast for San Luis Obispo?

Temperature & Precipitation

PM2.5 Trend

13h · 1 station

PM2.56.2 µg/m³ ✓ WHO

Good

PM1013.7 µg/m³

Good

UV INDEX0.0

Low

Station readings (1 station within 25 km)

6.2

Median

6.2

Average

6.2

Low

6.2

High

PM2.5 µg/m³ · Model: 5.8 · Bias: -0.4

What is the 7-day forecast for San Luis Obispo?

10-20

23.6° 15.6°

10-21

20.9° 14.1°

10-22

27.1° 16.2°

10-23

23.3° 15.2°

10-24

21.1° 15.2°

10-25

27.4° 14.0°

7.88 mm

10-26

24.3° 13.9°

Both models agree Avg diff: 4.1°C

Where are air quality stations near San Luis Obispo?

Atascadero-Lewis Avenue, San Luis Obispo, California

23.2 km PM2.5: 6.2 µg/m³

What cities are near San Luis Obispo?

17 Arroyo Grande 26 Atascadero 18 Nipomo 26 Paso Robles 20 Santa Maria 21 Orcutt 26 Lompoc 25 Coalinga 35 Goleta 25 Isla Vista

Get AQI alerts for San Luis Obispo

Notify me when air quality reaches:

ModerateAQI > 50 Unhealthy for Sensitive GroupsAQI > 100 UnhealthyAQI > 150 Very UnhealthyAQI > 200

Free · No account · Unsubscribe any time

Data sources: AQI from ground-level monitoring stations via AQICN. Weather forecast from ECMWF (IFS & CAMS models). AQI calculated using US EPA standard. Updated 2026-10-20T20:58 UTC.