Direct planning answer
What is the best time to go outside?
There is no universal best hour for every place and person. For a selected city, AirAgora can identify the complete practical two-hour window with the lowest deterministic modeled AQI severity among the available forecast hours.
Complete window · 70/30 rule
Mean + worst hour, stable ties
Short answer
There is no universal best hour for every place and person. For a selected city, AirAgora can identify the complete practical two-hour window with the lowest deterministic modeled AQI severity among the available forecast hours.
“Best” means lower relative to the candidates, not clean, healthy, or safe for everyone. If all candidates are elevated, the product says least polluted available.
Why one isolated hour is not enough
An outing spans time, and an attractive point can be followed by deterioration. AirAgora requires two valid consecutive hours and combines 70 percent mean severity with 30 percent worst-hour severity.
A city model also cannot capture every street, indoor space, route, monitor, or rapidly moving plume. The source timestamp and broad grid remain part of the answer.
How AirAgora answers
AirAgora preserves the OpenWeather 1–5 provider scale for display and ranks hours from continuous severity derived from documented pollutant concentration bands. Candidate starts run from 06:00 to 22:00 local time and remain DST-safe through absolute timestamps.
Material ties go to the earlier period. If improvement over the median is below 0.08, AirAgora reports broadly similar conditions rather than false precision.
How to use the answer
Confirm the city, timezone, scheme, source time, modeled status, completeness, and stale label. Compare the period that covers the whole activity.
During severe events, official local guidance should take priority. Activity preferences change caution copy, not the environmental order.
- Complete two-hour window
- Named OpenWeather scale
- 70% mean + 30% worst hour
- Meaningful-change guard
- All-poor caution
Direct answers
Frequently asked questions
Does AirAgora always choose a precise window?
No. If the leading window is not meaningfully better, it reports similar conditions.
What if every window is unhealthy?
The result can show the least polluted available period while keeping the whole range labeled elevated.
Does my activity change the winner?
No. It changes caution wording, not the deterministic ranking.
Can I search my exact location?
Browser geolocation is available after an explicit click, but the result remains a modeled grid estimate.
Does AirAgora treat “What is the best time to go outside” as a personal guarantee?
“Best” means lower relative to the candidates, not clean, healthy, or safe for everyone. If all candidates are elevated, the product says least polluted available.
Evidence register
Sources and further reading
The links below identify the primary references used on this page. Selection, summary, and presentation are AirAgora modifications.
Keep exploring
AirAgora provides informational planning guidance, not medical advice. Local conditions can differ from modeled forecasts; follow official guidance during severe events.