Hello im currently building that style of enclosure for my horsefield Tortoise (4ft x 9ft), I rescued him from a elderly couple who says he is roughly 10 years old (shell is roughly 9 inches). He's never been hibernated before and there was no sign of a uvb bulb and they fed him on an improper diet with that information I have decided not to hibernate him this year as I don't feel he's 100% healthy.

As the enclosure wont be done until September I was wondering if it would be okay to still put him out from september....

 

I have also have this ^. Which I will be fitting him bulbs and lights into (and sealed obviously)

What my worry is Rain Sleat and Snow. Should I make a cover to go over it? Should I bring him in? or shall I leave him outside as long as his house is warm?