It's a very good reason to go riding before sunup, especially when I have intense work planned. In fact the sun is up before I get back home, but at least I beat the worst of it for my workout riding. Coming home from work in the afternoon of course I get the full brunt of it. Luckily it's less than three miles to ride.
During morning rides I hear katydids (around here they say, DID-IT!), crickets, and birds singing. I see some beautiful sunrises. It's great when I see the full moon outbound, and a sunrise inbound. The best of both worlds, you might say.