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 Half Moon Bay
Air quality index (AQI) and PM2.5 air pollution in Half Moon Bay
23.4K people follow this city
Half Moon Bay Air Quality Map
Real-time Half Moon Bay air pollution map
AIR QUALITY DATA CONTRIBUTORS
Anonymous contributor
See all
Pollen
What is the pollen count in Half Moon Bay today?
 | Index | Low | |
 | Tree pollen | Low | |
 | Grass pollen | Low | |
 | Weed pollen | None |
Source: tomorrow.io
Weather
What is the current weather in Half Moon Bay?
| Weather | Mist |
| Temperature | 59°F |
| Humidity | 76% |
| Wind | 11.5 mp/h |
| Pressure | 30 Hg |
live aqi city ranking
Real-time USA city ranking
| # | city | US AQI |
|---|---|---|
| 1 |  Georgetown, Texas | 115 |
| 2 | Round Rock, Texas | 113 |
| 3 | New Braunfels, Texas | 111 |
| 4 | Cedar Park, Texas | 109 |
| 5 | Boerne, Texas | 107 |
| 6 | Austin, Texas | 106 |
| 7 | Leander, Texas | 103 |
| 8 | Dallas, Texas | 97 |
| 9 | Lewisville, Texas | 96 |
| 10 | Marana, Arizona | 94 |
(local time)
SEE WORLD AQI RANKING
3D animated air pollution map
live Half Moon Bay aqi ranking
Real-time Half Moon Bay air quality ranking
| # | station | US AQI |
|---|---|---|
| 1 | Kelly Avenue-Cunha Intermediate Outside | 32 |
| 2 | The Tree House | 28 |
| 3 | Alsace Lorraine Avenue | 26 |
| 4 | Half Moon Bay High School Outside | 25 |
| 5 | Coronado Avenue | 21 |
| 6 | Le Mans Way | 19 |
| 7 | Coastside Senior Housing | 12 |
| 8 | Bayhill Road | 8 |
| 9 | Metzgar St | 6 |
| 10 | 480 Tunitas Creek Road | 5 |
(local time)
SEE WORLD AQI RANKING
US AQI
19
live AQI index
Good
Overview
What is the current air quality in Half Moon Bay?
| Air pollution level | Air quality index | Main pollutant |
|---|---|---|
| Good | 19 US AQI | PM2.5 |
| Pollutants | Concentration | |
|---|---|---|
| PM2.5 | 3.5µg/m³ | |
✓
PM2.5 concentration in Half Moon Bay air currently meets the WHO annual air quality guideline value
Health Recommendations
What is the current air quality in Half Moon Bay?
 | Enjoy outdoor activities |
 | Open your windows to bring clean, fresh air indoors GET A MONITOR |
Forecast
Half Moon Bay air quality index (AQI) forecast
| Day | Pollution level | Weather | Temperature | Wind |
|---|---|---|---|---|
| Sunday, May 19 | Good 33 AQI US |  | 64.4° 50° |  11.2 mp/h |
| Monday, May 20 | Good 36 AQI US | | 68° 50° | 8.9 mp/h |
| Tuesday, May 21 | Good 31 AQI US |  | 59° 50° | 11.2 mp/h |
| Today | Good 19 AQI US | | 59° 50° | 11.2 mp/h |
| Thursday, May 23 | Good 32 AQI US | | 59° 50° | 15.7 mp/h |
| Friday, May 24 | Good 31 AQI US |  20% | 55.4° 50° | 17.9 mp/h |
| Saturday, May 25 | Good 22 AQI US | 30% | 55.4° 50° | 13.4 mp/h |
| Sunday, May 26 | Good 24 AQI US | | 57.2° 48.2° | 11.2 mp/h |
| Monday, May 27 | Good 50 AQI US | | 60.8° 50° | 8.9 mp/h |
| Tuesday, May 28 | Moderate 66 AQI US  | 20% | 59° 51.8° | 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?
Half Moon Bay air quality data attribution
11Contributors
- 11 Anonymous contributors
11 stations
11 Anonymous Contributors
1 Data source
Data validated and calibrated by IQAirWhere is the cleanest air quality in Half Moon Bay?
AQI US, Metric