Is it safe to go outside in Portland today?
Portland, OR’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 Portland’s air
Portland usually has moderate air, but wildfire smoke in late summer and fall — like the severe 2020 event — is often its biggest air-quality problem.
- Wildfire smoke (PM2.5) in late summer and fall
- Wood smoke in winter
- Summer ozone on the hottest days
Smoke season typically runs August into October; it's worth checking before outdoor plans on hazy days.
From a number to a decision
Official sources give Portlandan 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 Portland right now?
It changes hour to hour. Portland usually has moderate air, but wildfire smoke in late summer and fall — like the severe 2020 event — is often its biggest air-quality problem. Check Portland's current AQI, pollen, and heat for a plain-language read on whether to head out.
When is Portland's air most likely to be a problem?
Smoke season typically runs August into October; it's worth checking before outdoor plans on hazy days.
What AQI is okay for outdoor exercise in Portland?
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.