Inland locations can experience more variable air quality due to limited natural ventilation and local emission sources.
In line with average conditions across San Francisco
24-Hour AQI Trend
Pollutant Breakdown
Peer Comparison
In line with average conditions across San Francisco
Why San Francisco's Air Is What It Is
San Francisco sits in an inland urban setting where local environmental conditions are shaped primarily by density and development patterns. Temperature swings between day and night can be more pronounced than in coastal areas.
Historical Context
Current AQI of 28 reflects recent monitoring data. Local conditions can shift with weather patterns, traffic volume, and seasonal factors.
24-Hour Hourly Forecast
Best window: Check real-time conditions · Peak AQI: 28 at Now
| Time | AQI | Temp (°F) | Humidity | Wind (mph) | PM2.5 | PM10 |
|---|---|---|---|---|---|---|
| Hourly forecast data updates throughout the day — current AQI is 28. Check back for the full 24-hour outlook. | ||||||
Current air quality is good — ideal for outdoor activities. Check the hourly forecast for the best windows.
San Francisco's Environmental Performance in Context. Compared to national averages, San Francisco demonstrates Good conditions that contribute to the area's appeal. Visitors to San Francisco may notice the difference in air quality compared to more industrialized regions. A practical consideration for San Francisco residents: environmental data from monitoring stations represents conditions at specific locations. Conditions in individual parks across 94130 may vary based on tree cover, traffic proximity, and other local factors.