See how San Francisco compares to peer neighborhoods across key environmental metrics — AQI, green space access, and more.

Air Quality Index 31
Temperature139.5°F
Humidity60.0%
Wind Speed5.7 mph
NOTICE: Safety and air quality are subjective and fluctuate in real-time. This report is a data-driven starting point. Always exercise personal judgment, stay aware of your surroundings, and consult official local law enforcement or health department resources for real-time safety and health advice.
Good 31 AQI · Total Lung Freedom Updated: Data from May 17, 2026, 1:32 PM

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

AQI trend chart — current reading: 31 (Total Lung Freedom). Data from May 17, 2026, 1:32 PM.

Pollutant Breakdown

PM2.5 6.70 µg/m³ Fine particulate matter — penetrates deep into lungs
PM10 10.20 µg/m³ Coarse particulate matter — dust and pollen
NO₂ 3.50 ppb Nitrogen dioxide — traffic and combustion marker
O₃ 72.00 ppb Ground-level ozone — forms in sunlight from pollutants

Peer Comparison

In line with average conditions across San Francisco

San Francisco
31

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 31 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: 31 at Now

TimeAQITemp (°F)HumidityWind (mph)PM2.5PM10
Hourly forecast data updates throughout the day — current AQI is 31. 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.

The San Francisco environmental profile is characterized by Good conditions that support a range of lifestyle preferences. Across 94122, residents benefit from transparent monitoring and accessible data. A practical tip for San Francisco residents: many environmental monitoring organizations offer mobile apps that provide real-time data for the 94122 area. These tools can enhance the outdoor experience.

Explore More in San Francisco

Disclaimer: The information provided on this site is for informational purposes only and does not constitute professional advice. Air quality, safety, and environmental data are subject to change and may not reflect real-time conditions. Always verify with official local sources before making decisions that affect your health or safety.