Cool Routes

Directions that dodge extreme heat and wind chill.

Walk Bike

Avoid heat & cold Strongly

Comfort limits

Units

°F °C

Feels hotter than °F Feels colder than °F Use research models (trained on synthetic data, not yet checked against real streets)

Research models swap the shade estimate for shadows cast by each building's outline and tree crowns, and in central Seoul add the digital twin's neighborhood temperature pattern to the forecast.

“Feels like” uses the heat index in warm air and wind chill in cold air, plus sun on the unshaded part of each street (weaker under cloud) and adjusted for wind shelter. Each street is judged at the time you would reach it, and walkers are assumed to take the shadier sidewalk. Right-click the map (or long-press on a phone) to see what goes into it on any street near your trip.