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
36 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 | Low | |
 | Weed pollen | None |
Source: tomorrow.io
Weather
What is the current weather in San Juan?
| Weather | Broken clouds |
| Temperature | 55.4°F |
| Humidity | 77% |
| Wind | 10.4 mp/h |
| Pressure | 30.5 Hg |
live aqi city ranking
Real-time USA city ranking
| # | city | US AQI |
|---|---|---|
| 1 |  Boerne, Texas | 116 |
| 2 | San Antonio, Texas | 103 |
| 3 | Austin, Texas | 102 |
| 4 | New Braunfels, Texas | 98 |
| 5 | Corpus Christi, Texas | 92 |
| 6 | Mecca, California | 92 |
| 7 | Georgetown, Texas | 87 |
| 8 | Round Rock, Texas | 82 |
| 9 | Cedar Park, Texas | 79 |
| 10 | Coachella, California | 73 |
(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 | Hooterville Lane | 21 |
| 2 | Lois Lane | 21 |
| 3 | Elwha Rock Road | 19 |
| 4 | Henry Road | 18 |
| 5 | Hyla Lane | 18 |
| 6 | Karen Lane | 18 |
| 7 | Eagle Lake, Orcas Island | 15 |
| 8 | Kirchoff Lane | 15 |
| 9 | Carrolls Lane | 2 |
(local time)
SEE WORLD AQI RANKING
US AQI
18
live AQI index
Good
Overview
What is the current air quality in San Juan?
| Air pollution level | Air quality index | Main pollutant |
|---|---|---|
| Good | 18 US AQI | PM2.5 |
| Pollutants | Concentration | |
|---|---|---|
| PM2.5 | 3.3µg/m³ | |
✓
PM2.5 concentration in San Juan air currently meets 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 |
|---|---|---|---|---|
| Monday, May 20 | Good 10 AQI US |  | 51.8° 46.4° |  22.4 mp/h |
| Tuesday, May 21 | Good 8 AQI US | | 57.2° 46.4° | 22.4 mp/h |
| Wednesday, May 22 | Good 13 AQI US | | 55.4° 48.2° | 13.4 mp/h |
| Today | Good 18 AQI US | | 55.4° 48.2° | 13.4 mp/h |
| Friday, May 24 | Good 18 AQI US | 100% | 50° 46.4° | 11.2 mp/h |
| Saturday, May 25 | Good 15 AQI US | 80% | 53.6° 46.4° | 20.1 mp/h |
| Sunday, May 26 | Good 23 AQI US | 70% | 50° 44.6° | 13.4 mp/h |
| Monday, May 27 | Moderate 55 AQI US  | | 55.4° 48.2° | 4.5 mp/h |
| Tuesday, May 28 | Moderate 67 AQI US | 100% | 53.6° 48.2° | 17.9 mp/h |
| Wednesday, May 29 | Good 29 AQI US |  | 55.4° 46.4° | 15.7 mp/h |
Interested in hourly forecast? Get the app
News
The latest air quality news and resources.
How to best protect from air pollution?
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