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 Costa Mesa
Air quality index (AQI) and PM2.5 air pollution in Costa Mesa
17.5K people follow this city
Costa Mesa Air Quality Map
Real-time Costa Mesa air pollution map
AIR QUALITY DATA CONTRIBUTORS
Anonymous contributor
See all
Pollen
What is the pollen count in Costa Mesa today?
 | Index | None | |
 | Tree pollen | None | |
 | Grass pollen | None | |
 | Weed pollen | None |
Source: tomorrow.io
Weather
What is the current weather in Costa Mesa?
| Weather | Broken clouds |
| Temperature | 66.2°F |
| Humidity | 72% |
| Wind | 6.9 mp/h |
| Pressure | 29.9 Hg |
live aqi city ranking
Real-time USA city ranking
| # | city | US AQI |
|---|---|---|
| 1 |  Mecca, California | 74 |
| 2 | Yucaipa, California | 72 |
| 3 | Fort Worth, Texas | 69 |
| 4 | Lewisville, Texas | 68 |
| 5 | Midlothian, Texas | 68 |
| 6 | Pahrump, Nevada | 68 |
| 7 | San Bernardino, California | 68 |
| 8 | Aliquippa, Pennsylvania | 66 |
| 9 | Amador, California | 66 |
| 10 | Beaver, Pennsylvania | 66 |
(local time)
SEE WORLD AQI RANKING
3D animated air pollution map
live Costa Mesa aqi ranking
Real-time Costa Mesa air quality ranking
| # | station | US AQI |
|---|---|---|
| 1 | CCA Boston and Charleston | 28 |
| 2 | California Seabreeze | 15 |
(local time)
SEE WORLD AQI RANKING
US AQI
21
live AQI index
Good
Overview
What is the current air quality in Costa Mesa?
| Air pollution level | Air quality index | Main pollutant |
|---|---|---|
| Good | 21 US AQI | PM2.5 |
| Pollutants | Concentration | |
|---|---|---|
| PM2.5 | 3.9µg/m³ | |
✓
PM2.5 concentration in Costa Mesa air currently meets the WHO annual air quality guideline value
Health Recommendations
What is the current air quality in Costa Mesa?
 | Enjoy outdoor activities |
 | Open your windows to bring clean, fresh air indoors GET A MONITOR |
Forecast
Costa Mesa air quality index (AQI) forecast
| Day | Pollution level | Weather | Temperature | Wind |
|---|---|---|---|---|
| Thursday, May 30 | Good 33 AQI US |  | 69.8° 57.2° |  8.9 mp/h |
| Friday, May 31 | Good 27 AQI US | | 69.8° 59° | 8.9 mp/h |
| Saturday, Jun 1 | Good 18 AQI US | | 66.2° 59° | 8.9 mp/h |
| Today | Good 21 AQI US | | 66.2° 59° | 8.9 mp/h |
| Monday, Jun 3 | Moderate 51 AQI US  | | 68° 60.8° | 6.7 mp/h |
| Tuesday, Jun 4 | Moderate 57 AQI US |  | 68° 60.8° | 6.7 mp/h |
| Wednesday, Jun 5 | Moderate 59 AQI US | | 71.6° 62.6° | 8.9 mp/h |
| Thursday, Jun 6 | Moderate 66 AQI US | | 71.6° 62.6° | 6.7 mp/h |
| Friday, Jun 7 | Moderate 64 AQI US | | 69.8° 62.6° | 8.9 mp/h |
| Saturday, Jun 8 | Moderate 63 AQI US | | 68° 62.6° | 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?
Costa Mesa air quality data attribution
2Contributors
- 2 Anonymous contributors
2 stations
2 Anonymous Contributors
1 Data source
Data validated and calibrated by IQAirWhere is the cleanest air quality in Costa Mesa?
AQI US, Metric