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Air quality near Castle Street, San Francisco
Air quality index (AQI) and PM2.5 air pollution near Castle Street, San Francisco
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Air Quality Map
Real-time Castle Street air pollution map
AIR QUALITY DATA CONTRIBUTORS
Find out more about contributors and data sourcesPollen
What is the pollen count in Castle Street today?
 | Index | Very high | |
 | Tree pollen | Very high | |
 | Grass pollen | Low | |
 | Weed pollen | None |
Source: tomorrow.io
Weather
What is the current weather near Castle Street, San Francisco?
| Weather | Clear sky |
| Temperature | 62.6°F |
| Humidity | 32% |
| Wind | 1 mp/h |
| Pressure | 30.2 Hg |
live aqi city ranking
Real-time USA city ranking
| # | city | US AQI |
|---|---|---|
| 1 |  Flagstaff, Arizona | 95 |
| 2 | Corpus Christi, Texas | 90 |
| 3 | Galveston, Texas | 71 |
| 4 | Port Arthur, Texas | 69 |
| 5 | Thibodaux, Louisiana | 69 |
| 6 | Kamiah, Idaho | 68 |
| 7 | Anaheim, California | 65 |
| 8 | Claremont, California | 65 |
| 9 | La Habra, California | 65 |
| 10 | La Verne, California | 65 |
(local time)
SEE WORLD AQI RANKING
3D animated air pollution map
live aqi station ranking
Real-time San Francisco air quality ranking
| # | station | US AQI |
|---|---|---|
| 1 | Potrero Hill 2 | 52 |
| 2 | Richland near Leese | 41 |
| 3 | CEEP at Star | 38 |
| 4 | Sunset Co-op Nursery School | 38 |
| 5 | Mission District 2 | 37 |
| 6 | Western Addition | 37 |
| 7 | Baker Beach | 36 |
| 8 | Bernal Street | 36 |
| 9 | Inner Sunset 2 | 35 |
| 10 | 23rd Street & 3rd Street | 34 |
(local time)
SEE WORLD AQI RANKING
US AQI
91
live AQI index
Moderate
Overview
What is the current air quality near Castle Street, San Francisco?
| Air pollution level | Air quality index | Main pollutant |
|---|---|---|
| Moderate | 91 US AQI | PM2.5 |
| Pollutants | Concentration | |
|---|---|---|
| PM2.5 | 31.3µg/m³ | |
Health Recommendations
What is the current air quality near Castle Street, San Francisco?
 | 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
Castle Street, San Francisco air quality index (AQI) forecast
| Day | Pollution level | Weather | Temperature | Wind |
|---|---|---|---|---|
| Thursday, Jan 27 | Moderate 54 AQI US |  | 57.2° 48.2° |  6.7 mp/h |
| Friday, Jan 28 | Moderate 53 AQI US | | 57.2° 48.2° | 4.5 mp/h |
| Saturday, Jan 29 | Good 38 AQI US  | | 55.4° 48.2° | 4.5 mp/h |
| Sunday, Jan 30 | Good 6 AQI US | | 55.4° 50° | 4.5 mp/h |
| Monday, Jan 31 | Good 12 AQI US | | 57.2° 48.2° | 15.7 mp/h |
| Tuesday, Feb 1 | Good 8 AQI US | | 55.4° 46.4° | 17.9 mp/h |
Interested in hourly forecast? Get the app
News
The latest air quality news and resources.
Castle Street air quality data attribution
Contributor
Anonymous Contributor
Data source
Data validated and calibrated by IQAirWhere is the cleanest air quality in San Francisco?
No locations are available.
AQI US, Metric