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 Juan
Air quality index (AQI) and PM2.5 air pollution in San Juan
34 people follow this city
San Juan Air Quality Map
Real-time San Juan air pollution map
AIR QUALITY DATA CONTRIBUTORS
Anonymous contributor
See all
Pollen
What is the pollen count in San Juan today?
 | Index | Low | |
 | Tree pollen | Low | |
 | Grass pollen | None | |
 | Weed pollen | None |
Weather
What is the current weather in San Juan?
| Weather | Clear sky |
| Temperature | 44.6°F |
| Humidity | 59% |
| Wind | 0 mp/h |
| Pressure | 30.6 Hg |
live aqi city ranking
Real-time USA city ranking
| # | city | US AQI |
|---|---|---|
| 1 | Porterville, California | 86 |
| 2 | Peaceful Valley, Washington | 84 |
| 3 | Visalia, California | 84 |
| 4 | Palm Desert, California | 76 |
| 5 | Clear Brook, Virginia | 74 |
| 6 | North Hollywood, California | 72 |
| 7 | Van Nuys, California | 72 |
| 8 | Charles Town, West Virginia | 71 |
| 9 | South Gate, California | 70 |
| 10 | Frederick, Maryland | 67 |
(local time)
SEE WORLD AQI RANKING
3D animated air pollution map
live San Juan aqi ranking
Real-time San Juan air quality ranking
| # | station | US AQI |
|---|---|---|
| 1 | Kirchoff Lane | 36 |
| 2 | Hooterville Lane | 27 |
| 3 | Karen Lane | 26 |
| 4 | Elwha Rock Road | 25 |
| 5 | Hyla Lane | 25 |
| 6 | Lois Lane | 25 |
| 7 | Henry Road | 24 |
| 8 | Eagle Lake, Orcas Island | 21 |
| 9 | Carrolls Lane | 2 |
(local time)
SEE WORLD AQI RANKING
US AQI
25
live AQI index
Good
Overview
What is the current air quality in San Juan?
| Air pollution level | Air quality index | Main pollutant |
|---|---|---|
| Good | 25 US AQI | PM2.5 |
| Pollutants | Concentration | |
|---|---|---|
| PM2.5 | 6µg/m³ | |
!
PM2.5
x1.2
PM2.5 concentration in San Juan is currently 1.2 times the WHO annual air quality guideline value
Health Recommendations
What is the current air quality in San Juan?
 | Enjoy outdoor activities |
 | Open your windows to bring clean, fresh air indoors GET A MONITOR |
Forecast
San Juan air quality index (AQI) forecast
| Day | Pollution level | Weather | Temperature | Wind |
|---|---|---|---|---|
| Tuesday, Apr 16 | Good 10 AQI US |  | 53.6° 41° |  6.7 mp/h |
| Wednesday, Apr 17 | Good 15 AQI US | | 59° 42.8° | 11.2 mp/h |
| Thursday, Apr 18 | Good 26 AQI US | | 55.4° 44.6° | 6.7 mp/h |
| Today | Good 25 AQI US | | 55.4° 44.6° | 6.7 mp/h |
| Saturday, Apr 20 | Good 13 AQI US |  100% | 55.4° 44.6° | 22.4 mp/h |
| Sunday, Apr 21 | Good 6 AQI US |  | 51.8° 44.6° | 17.9 mp/h |
| Monday, Apr 22 | Good 9 AQI US | | 51.8° 42.8° | 6.7 mp/h |
| Tuesday, Apr 23 | Good 8 AQI US | | 57.2° 46.4° | 6.7 mp/h |
| Wednesday, Apr 24 | Good 11 AQI US | 100% | 51.8° 46.4° | 11.2 mp/h |
| Thursday, Apr 25 | Good 8 AQI US | 30% | 50° 46.4° | 6.7 mp/h |
Interested in hourly forecast? Get the app
News
The latest air quality news and resources.
San Juan air quality data attribution
9Contributors
- 9 Anonymous contributors
9 stations
9 Anonymous Contributors
1 Data source
Data validated and calibrated by IQAirWhere is the cleanest air quality in San Juan?
AQI US, Metric