summer hunting

We hunted last Saturday day I live in south louisiana it's really hot and humid down here.. We got in the woods late as always.. So we had a late start around 7:30 and the dogs caught to sows we started to see a big difference in the way they hunted after about 9:30 and we hunted by boat we were surrounded by water the dogs were jumping in every shot they got needless to say the dogs and myself were pretty much done at 12:00 and that was pushing it.. I was wearing waders so I figured if I was hot as all get out so were the dogs with vest!! So simple easy solution.. Hunting at night down here is your only option.