Is it safe to go outside in Seattle today?
Seattle, WA’s air changes day to day. BreathCount checks the current air quality (AQI), pollen, and heat and turns it into one plain-language decision — instead of leaving you to interpret a raw number. Free, no account, no install.
What affects Seattle’s air
Seattle's marine air is clean most of the year, but late-summer wildfire smoke can push air quality from good to unhealthy within hours.
- Wildfire smoke (PM2.5) in late summer and early fall
- Wood smoke on cold, still winter nights
- Traffic-related pollution near major corridors
The riskiest window is roughly August into September, when regional wildfire smoke can settle over the city.
From a number to a decision
Official sources give Seattlean accurate AQI number. They don’t tell you whether to run this morning, send the kids to recess, or move practice indoors. BreathCount reads the current AQI, pollen, and heat together and gives you a plain-language answer for your situation — general, exercise, kids, or sensitive groups — plus a short note you can share.
Common questions
Is the air quality bad in Seattle right now?
It changes hour to hour. Seattle's marine air is clean most of the year, but late-summer wildfire smoke can push air quality from good to unhealthy within hours. Check Seattle's current AQI, pollen, and heat for a plain-language read on whether to head out.
When is Seattle's air most likely to be a problem?
The riskiest window is roughly August into September, when regional wildfire smoke can settle over the city.
What AQI is okay for outdoor exercise in Seattle?
There's no single cutoff. As AQI rises, sensitive groups — kids, older adults, and people with asthma or heart conditions — may want to ease up first, and everyone may want to cut back on long, intense efforts on higher days. BreathCount turns the current number into activity-specific guidance. This isn't medical advice; always follow official alerts.
BreathCount does not declare conditions safe or unsafe and is not medical advice. Conditions can change quickly — always follow official alerts from AirNow (EPA) and local authorities.