I have this lovely Russian tortoise, Herschel, who is living inside my home right now, but I'm thinking of moving him outside to my patio, but the temps concern me. I live in Southern California. The temps in the day get up to 80-90 degrees and down to 60-65 at night where I am. I know that Russians like a warm basking area around 100, so is it not warm enough outside or will he be fine? By no means does he have to go outside, I'm just thinking the natural sun might be better for him than the UV light and slightly more "energy efficient."