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Air quality in San Juan
Air quality index (AQI) and PM2.5 air pollution in San Juan
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San Juan Air Quality Map
Real-time San Juan air pollution map
AIR QUALITY DATA SOURCE
* AQI modeled using satellite data Learn more
Pollen
What is the pollen count in San Juan today?
 | Index | High | |
 | Tree pollen | None | |
 | Grass pollen | High | |
 | Weed pollen | None |
Weather
What is the current weather in San Juan?
| Weather | Broken clouds |
| Temperature | 78.8°F |
| Humidity | 82% |
| Wind | 19.6 mp/h |
| Pressure | 29.9 Hg |
live aqi city ranking
Real-time USA city ranking
| # | city | US AQI |
|---|---|---|
| 1 | Porterville, California | 104 |
| 2 | Visalia, California | 104 |
| 3 | Palm Desert, California | 85 |
| 4 | Three Rivers, California | 81 |
| 5 | Deschutes River Woods, Oregon | 80 |
| 6 | Bakersfield, California | 79 |
| 7 | Allentown, Pennsylvania | 78 |
| 8 | Corpus Christi, Texas | 68 |
| 9 | Lewisville, Texas | 68 |
| 10 | Bethlehem, Pennsylvania | 67 |
(local time)
SEE WORLD AQI RANKING
3D animated air pollution map
US AQI
54*
live AQI index
Moderate
Overview
What is the current air quality in San Juan?
| Air pollution level | Air quality index | Main pollutant |
|---|---|---|
| Moderate | 54* US AQI | PM2.5 |
| Pollutants | Concentration | |
|---|---|---|
| PM2.5 | 13.7*µg/m³ | |
!
PM2.5
x2.7
PM2.5 concentration in San Juan is currently 2.7 times the WHO annual air quality guideline value
Health Recommendations
What is the current air quality in San Juan?
 | 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 |
Forecast
San Juan air quality index (AQI) forecast
| Day | Pollution level | Weather | Temperature | Wind |
|---|---|---|---|---|
| Today | Moderate 54 AQI US | | 95° 73.4° |  17.9 mp/h |
| Friday, Apr 19 | Good 44 AQI US  |  | 93.2° 73.4° | 15.7 mp/h |
| Saturday, Apr 20 | Good 41 AQI US | | 89.6° 73.4° | 17.9 mp/h |
| Sunday, Apr 21 | Good 36 AQI US |  100% | 77° 69.8° | 15.7 mp/h |
| Monday, Apr 22 | Moderate 57 AQI US | 90% | 71.6° 66.2° | 11.2 mp/h |
| Tuesday, Apr 23 | Moderate 60 AQI US | 20% | 86° 69.8° | 8.9 mp/h |
| Wednesday, Apr 24 | Moderate 56 AQI US | | 91.4° 73.4° | 13.4 mp/h |
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News
The latest air quality news and resources.
Where is the cleanest air quality in San Juan?
No locations are available.
AQI US, Metric