The temperature your dog actually feels.
Measured in degrees. Not the thermometer on your phone.
Air + humidityNOAA heat-index formula for apparent temperature.
Surface absorptionGrass, concrete, asphalt differ by up to 50°F in direct sun.
UV tissue damageSun exposure on pads, nose, and short-coat skin.
Your dog's biologyBreed, age, coat color, body size, and health flags.
Wind chill / pantingAir movement reduces evaporative cooling capacity.
Time of day & shadeSun angle, tree canopy, building shade along your route.
< 75°Within rangeNormal walk duration
75–85°CautionShorten walks · pick shade
85°+High riskGrass only · walk before 8am or after 7pm