It's been over 95* F here all week and I've been trying to strengthen my feet against the heat. Just in the past week I've noticed a huge difference.
i found this yahoo answer is relevant to the topic. When asphalt is manufactured the aggregate ( stone ) and the liquid (bituminous cement "tar") are heated to about 275 degrees. At this point it is a semi liquid. After it is installed it is compacted as it cools down. Hence the pavement can't get above 180 degrees after it is installed and in use. On a 100 degree day asphalt can reach up to 120 degrees, depending on exposure to the sun, altitude etc. Source(s): 29 years of the asphalt business. http://answers.yahoo.com/question/index?qid=20090123131816AAeXRwL
It very rarely gets hot enough here for the asphalt to get scorching hot. Mostly in the summer the roads and pavements are just 'pleasantly warm' - very nice for bare feet!
99 degrees again today. Noticed that if you stand still the pavement gets a bit uncomfortable. The trick is to keep moving.
Today we've gotten to 103 degrees but the day is still young. Waiting to cross a street is challenging.
it has been too hot to barefoot in the afternoon, day time highs 100+F and over night lows 79-81F. it has been record monthly highs since March, that is the average daily temperature (factoring in overnight low and daytime high) have been records.
I only get burnt if I walk for a longer distance around mid day (It's generally 30+ C). But it does get better - I mean, I drive my dirt bike barefoot without problems. Before I couldn't do that. Two years of no shoes, though, and I very rarely feel much discomfort. Hell, I've even stepped on glass without it breaking the skin. Walking on black asphalt for a while on a really hot day will get quite uncomfortable though.