United States
Air quality in Los Angeles is acceptable. Consider reducing intensity or duration.
Data from Open-Meteo • Updated 12:20:45 PM
Los Angeles is historically known for smog, driven by its geography — a basin surrounded by mountains that traps pollutants. While air quality has improved dramatically since the 1970s, LA still experiences elevated ozone and PM2.5 levels, particularly in the San Fernando and San Gabriel Valleys. Wildfire smoke can severely worsen conditions during fire season.
Get your Training Conditions Score, analyze your route segment by segment, and find the best time to train.
Try it freeLA's AQI typically ranges from 40 to 100, with inland valleys often seeing higher readings than coastal areas. Summer ozone regularly pushes the AQI into the Unhealthy for Sensitive Groups range.
Early morning along the coast offers the cleanest air, as ocean breezes help clear pollutants. Avoid running in inland valleys during afternoon hours in summer, when ozone peaks.
Deep dive into pollutants, thresholds, and how air quality affects your running performance.
Quick threshold lookup for every AQI level. Know when to run and when to stay indoors.
Practical rules for training during smoke events: when to go indoors and how to recover.