AddAir quality in Half Moon Bay
Air quality index (AQI⁺) and PM2.5 air pollution in Half Moon Bay • 56.5K Followers • 10:00, Jun 11 Local time
60
US AQI⁺Moderate
Main pollutant:
PM2.5
13.7 µg/m³
19°
3 km/h
74 %
Hourly forecast
Half Moon Bay air quality index (AQI⁺) forecast
Daily forecast
Half Moon Bay air quality index (AQI⁺) forecast
| Today | 61 | | 19° 13° |  7 km/h | 91% |
| Fri | 61 | | 17° 13° | 13 km/h | 99% |
| Sat | 50 |  | 18° 14° | 21 km/h | 94% |
Air pollutants
What is the current air quality in Half Moon Bay?
PM2.5 concentration is currently 2.7 times the World Health Organization annual PM2.5 guideline value.
Health recommendations
 Sensitive groups should reduce outdoor exercise |
 Close your windows to avoid dirty outdoor air Get a monitor |
 Sensitive groups should wear a mask outdoors Get a mask |
 Sensitive groups should run an air purifier Get an air purifier |
Protect yourself from air pollution in Half Moon Bay
Monitor the air you breathe
Get accurate AirVisual air quality readings and real-time insights for cleaner air. Monitors that reveal pollution sources, highlight when air purifier use is needed.
Medical grade air purifiers
Trusted worldwide, the HealthPro Series uses HyperHEPA technology. Filters ultrafine particles other air purifiers miss, delivering medical-grade protection.
Powerful, stylish air purifiers
Compact and powerful, the Atem Series combines Swiss engineering with high-performance air purification, filtering ultrafine particles with HyperHEPA technology.
Pollen
What is the pollen count in Half Moon Bay today?
Index
Moderate
 Tree Low | 25% |
 Grass Moderate | 50% |
 Weed Moderate | 50% |
Source:
wetter.comHealth recommendations
Sensitive groups should reduce outdoor exercise |
Close your windows to avoid dirty outdoor air Get a monitor |
Sensitive groups should wear a mask outdoors Get a mask |
Sensitive groups should run an air purifier Get an air purifier |
Pollen
What is the pollen count in Half Moon Bay today?
Index
Moderate
Tree Low | 25% |
Grass Moderate | 50% |
Weed Moderate | 50% |
Source:
wetter.comProtect yourself from air pollution in Half Moon Bay
Monitor the air you breathe
Get accurate AirVisual air quality readings and real-time insights for cleaner air. Monitors that reveal pollution sources, highlight when air purifier use is needed.
Medical grade air purifiers
Trusted worldwide, the HealthPro Series uses HyperHEPA technology. Filters ultrafine particles other air purifiers miss, delivering medical-grade protection.
Powerful, stylish air purifiers
Compact and powerful, the Atem Series combines Swiss engineering with high-performance air purification, filtering ultrafine particles with HyperHEPA technology.
Most polluted locations near Half Moon Bay
Worldwide AQI⁺ ranking
Station ranking
Real-time AQI⁺ station ranking for stations in Half Moon Bay
Historic air quality near Half Moon Bay
History
Historic air quality graph for Half Moon Bay
Historic air quality near Half Moon Bay
History
Historic air quality graph for Half Moon Bay
Most polluted locations near Half Moon Bay
Worldwide AQI⁺ rankingStation ranking
Real-time AQI⁺ station ranking for stations in Half Moon Bay
Measure your own air quality
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