It’s nice to show off your pool table, but even a short period of sunlight exposure can do a number on your cloth, cushions and pockets. This table (actually belonging to my parents) was exposed to sunlight for a few months before we decided to get them a cover. The table was properly covered and not in direct sunlight under the covered patio, but you can see the wine colored cloth faded quickly. We put new marine blue cloth on and it looks great. We had a blast playing on it for the the 4th and after we were done, we put their fitted cover on.
And, it is okay to put a pool table outside. Obviously, this isn’t a fancy carved leg table, but when your are short on space, you can make it work. Just remember that heavy duty fitted cover.