Get a monitor and contributor to air quality data in your city.
Air Quality 
Air Monitors
Air Purifiers
For Business
News
Support
Air quality in San Luis Obispo
Air quality index (AQI) and PM2.5 air pollution in San Luis Obispo
14K people follow this city
San Luis Obispo Air Quality Map
Real-time San Luis Obispo air pollution map
AIR QUALITY DATA CONTRIBUTORS
17 Contributors
See all
Pollen
What is the pollen count in San Luis Obispo today?
 | Index | Low | |
 | Tree pollen | Low | |
 | Grass pollen | Low | |
 | Weed pollen | None |
Source: tomorrow.io
Weather
What is the current weather in San Luis Obispo?
| Weather | Broken clouds |
| Temperature | 64.4°F |
| Humidity | 57% |
| Wind | 8.1 mp/h |
| Pressure | 29.9 Hg |
live aqi city ranking
Real-time USA city ranking
| # | city | US AQI |
|---|---|---|
| 1 |  Thibodaux, Louisiana | 107 |
| 2 | Baton Rouge, Louisiana | 94 |
| 3 | San Bernardino, California | 89 |
| 4 | Indio, California | 85 |
| 5 | Yucaipa, California | 84 |
| 6 | Chicago, Illinois | 81 |
| 7 | Michigan City, Indiana | 79 |
| 8 | Fontana, California | 77 |
| 9 | Burns Harbor, Indiana | 76 |
| 10 | Claremont, California | 76 |
(local time)
SEE WORLD AQI RANKING
3D animated air pollution map
live San Luis Obispo aqi ranking
Real-time San Luis Obispo air quality ranking
| # | station | US AQI |
|---|---|---|
| 1 | CARB - Cal Poly | 33 |
| 2 | 900-998 County Road 306 | 31 |
| 3 | Montrose Drive | 24 |
| 4 | Righetti Road | 19 |
| 5 | Chaparral Circle | 18 |
| 6 | Jaycee Drive | 18 |
| 7 | Broad St | 17 |
| 8 | Donegal Drive | 17 |
| 9 | San Luis Obispo, Meadow Street | 17 |
| 10 | SLO-Roberto | 16 |
(local time)
SEE WORLD AQI RANKING
US AQI
17
live AQI index
Good
Overview
What is the current air quality in San Luis Obispo?
| Air pollution level | Air quality index | Main pollutant |
|---|---|---|
| Good | 17 US AQI | PM2.5 |
| Pollutants | Concentration | |
|---|---|---|
| PM2.5 | 3µg/m³ | |
| PM10 | 2µg/m³ | |
✓
PM2.5 concentration in San Luis Obispo air currently meets the WHO annual air quality guideline value
Health Recommendations
What is the current air quality in San Luis Obispo?
 | Enjoy outdoor activities |
 | Open your windows to bring clean, fresh air indoors GET A MONITOR |
Forecast
San Luis Obispo air quality index (AQI) forecast
| Day | Pollution level | Weather | Temperature | Wind |
|---|---|---|---|---|
| Tuesday, May 14 | Good 22 AQI US |  | 64.4° 50° |  6.7 mp/h |
| Wednesday, May 15 | Good 11 AQI US |  | 66.2° 51.8° | 6.7 mp/h |
| Thursday, May 16 | Good 13 AQI US | | 64.4° 50° | 6.7 mp/h |
| Today | Good 17 AQI US | | 64.4° 50° | 6.7 mp/h |
| Saturday, May 18 | Good 18 AQI US | | 62.6° 48.2° | 6.7 mp/h |
| Sunday, May 19 | Good 21 AQI US | | 64.4° 48.2° | 8.9 mp/h |
| Monday, May 20 | Good 29 AQI US | | 60.8° 48.2° | 6.7 mp/h |
| Tuesday, May 21 | Good 27 AQI US | | 66.2° 48.2° | 6.7 mp/h |
| Wednesday, May 22 | Good 22 AQI US | | 64.4° 48.2° | 11.2 mp/h |
| Thursday, May 23 | Good 47 AQI US | | 62.6° 48.2° | 11.2 mp/h |
Interested in hourly forecast? Get the app
News
The latest air quality news and resources.
How to best protect from air pollution?
San Luis Obispo air quality data attribution
17Contributors
- California Air Resources Board (CARB)
2 stations
Government Contributor
- 16 Anonymous contributors
16 stations
16 Anonymous Contributors
3 Data sources
Data validated and calibrated by IQAirWhere is the cleanest air quality in San Luis Obispo?
- Baywood Way 6
- 3663 See Canyon Road 7
- King Street 7
- Hays Street 11
- Black Walnut Road 12
- Via Laguna Vista 14
- 4446-4498 Sunflower Way 15
- Cornus Court 15
- SLO-Roberto 16
- Broad St 17
- Donegal Drive 17
- San Luis Obispo, Meadow Street 17
- Chaparral Circle 18
- Jaycee Drive 18
- Righetti Road 19
- Montrose Drive 24
- 900-998 County Road 306 31
- CARB - Cal Poly 33
AQI US, Metric