Add in some humidity as well, and you may quickly give up on doing any photography in favor of that air-conditioned coffee shop. This heat will also affect your clarity of thought, especially when you get dehydrated, and you need to think clearly to get the best photos.
You’ll catch more local life first thing
The parks in China are alive with people first thing in the morning. If you arrive much after 9am you’ll have missed everything.
You may not see crowded streets first thing, but you will see more local life. That may take the form of a local market, or fishermen getting ready for work. There is a lot of activity that goes on at the crack of dawn, all waiting for you to capture with your camera.
It’s an amazing time to be a street photographer, but there will also be opportunities for landscape photographers. What can really bring a scene to life better than a farmer tending his field first thing in the morning?