Asphalt Temperature Chart
How hot does pavement really get? Detailed surface temperature data
Why Asphalt Gets So Hot
Dark asphalt absorbs up to 95% of solar radiation, converting it directly into heat. Its thermal mass means it stores this energy for hours, staying dangerously hot long after air temperatures peak. On a 90°F day, black asphalt in direct sun regularly exceeds 150°F — hot enough to cook an egg and cause second-degree burns on dog paws in under 60 seconds.
Air Temp vs Asphalt Temperature
Measured in direct afternoon sun on black asphalt
Surface Temperature Comparison
How different surfaces compare at 90°F air temperature
Black Asphalt
Darkest common surface — absorbs the most solar energy. Found on most roads and parking lots. The single most dangerous surface for dog paws.
150–160°FConcrete / Sidewalk
Lighter color reflects more sunlight, staying about 15-20°F cooler than asphalt. Still dangerous at high air temperatures.
130–145°FBrick / Pavers
Temperature depends on color — red brick is moderate, dark brick approaches asphalt temps. Textured surface retains heat in gaps.
125–145°FSand / Beach
Dry sand in direct sun can be surprisingly hot. Wet sand near the waterline stays much cooler. White sand is cooler than dark sand.
120–140°FGrass / Dirt
Grass stays dramatically cooler through evapotranspiration (water evaporating from blades). The safest surface for dog paws by far.
80–95°FAsphalt Temperature by Time of Day
On a typical 90°F summer day with full sun
What Affects Surface Temperature
Direct Sun vs Shade
Shaded pavement can be 20-30°F cooler than the same surface in direct sunlight. A tree-lined street is significantly safer than an open parking lot, even at the same air temperature.
Surface Color
Darker surfaces absorb more solar energy. Fresh black asphalt is the hottest, while weathered gray asphalt is slightly cooler. White or light-colored concrete stays the coolest of paved surfaces.
Wind Speed
Wind carries heat away from surfaces through convection. On windy days, pavement temperatures are noticeably lower. Calm, still days produce the highest surface temperatures.
Humidity & Cloud Cover
Cloud cover blocks direct solar radiation, reducing surface heating significantly. High humidity can actually make it feel hotter for dogs (harder to cool through panting) even if pavement temps are slightly lower.
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