Right now in East Hampton, the air is about 89°F, but the model estimates the asphalt under your dog's paws is closer to 124°F — a gap of roughly 35°F, because clear skies are pouring full sun onto every dark surface. That reading puts East Hampton in the caution range, where short, shade-hugging walks are the most a paw should take. Humidity is nudging the human "feels-like" to about 97°F, which matters for your dog too: muggy air makes it harder for a panting dog to shed heat, so treat a borderline reading as the hotter of the two.
Across the 12 hours left today, the pavement in East Hampton is projected to top out near 135°F around 4 PM, when the air will be about 97°F — a 38°F gap between the forecast your weather app shows and the surface your dog walks on. The surface is still gaining — up about 7°F over the next three hours — so a walk taken now is cooler than the same walk later this afternoon.
In an average August, East Hampton sees highs around 86°F and overnight lows near 74°F. Even at those moderate highs, a dark surface in direct sun can run 40–60°F hotter than the air, which is enough to tip midday walks into the caution range. As a seasonal rule of thumb, the safest windows are before about 10:00 AM and after about 5:00 PM.
East Hampton loses its all-day safe window in 5 months of the year — May through September — and August is one of them. The year peaks in July at an average high of 88°F against 50°F in January, a 38°F swing that decides how much of the day belongs to your dog.
East Hampton sits about 1 mile from Hampton, close enough that the two usually run within a degree or two of each other — if your walk crosses between them, either page answers the question. Street-level conditions still differ more than city-level ones do: a shaded side street and an open parking lot half a block apart can be twenty degrees apart underfoot.
Whatever the number says, confirm it with your hand: press the back of it flat on the pavement for seven seconds. If you can't hold it there, neither can your dog. On a day reading this warm in East Hampton, flat-faced breeds like pugs and bulldogs, plus seniors and young puppies with thinner pads, should sit out the heat entirely — subtract about 10°F from any safe threshold for them. If you must cross hot ground, protective booties or a quick coat of paw wax are the only real barrier between paw pads and the asphalt.