Around here, from May to September, the only safe times to walk the pooches is Dawn and Dusk. Very early morning and almost dark. Some days are still too hot by sundown for the asphalt to cool off enough for puppy paws. Try to keep them on grassy areas as much as possible and treat burns to their pads immediately with the same routine you'd treat a skin burn.
Remember, they rely on us to make the smart choice and to give them the care they can't give to