We think the CO is not best choice for you because in the area you live! I have a dog who has huge coat like CO and I live in Estonia where the winters are cold and summers are hot. Even she is suffering in summer time and thank god her coat is white not dark. I am always worried about her in summer time and thankfully we have a carage what stays cool in the summer and she hides there to get away from the heat. Are you willing to look at your dog sufering in big heat all the time?? It dose not matter if the place you live is just little bit cooler the fact is that it is hot in there and it is very hard for dog like CO to stand that.