Rheumatoid Arthritis Support Group
Rheumatoid arthritis is a chronic, inflammatory, multisystem, autoimmune disorder. It is a disabling and painful condition which can lead to substantial loss of mobility due to pain and joint destruction. The disease is also systemic in that it often also affects many extra-articular tissues throughout the body including the skin, blood vessels, heart, lungs, and...

-Sarah
(it's one thing to soak in hot water , which feels good, but....to try and exercise or swim in hot water is very exhausting)
I had stopped going a few years ago, b/c of my issue with the heat. I live in Southern Calif, so it's always hot already. The Arthritis Foundation in fact, recommends a temperature range for this purpose and while I may not recall the range perfectly, I believe it is between 81-88 degrees ; somewhere in there.
My pool I go to , is between 91-98....nice in the 'winter'.
anyway I would recommend you try it out somewhere before spending money......then you'll know.
I think you can find places at the "Y" ...YMCA.
Also you might want to call up local hospitals and ask if they have water therapy available...
perhaps, the Arthritis Foundation may have some ideas, of
where /how to find a pool warm enough for you.
my advice, also if you do this, don't do what I did when I first started, which was to say, I over did it.
it felt so good and harmless and comforting, that I tended to try to make up for all the exercise I could not do, on land.
It backfired on me, and my former arhritis doc told me, to alternate days , of any exercise I did. Not do it 2 days in a row.
my fav thing is using a floatation device in deep water, so I can "jog" or other aerobic things, alternated with what swimming I can do.
I take a lot of breaks, too.