Hey 4XL,
As others have said, winter is a good time to show the kite a little love. My advice is to pump the kite up, give it a hosing down to get all the salt off it, let it dry completely and then carefully pack it back in its bag. It will be fine. Just keep it out of the damp in a cool dry place and it will be like new next time you use it. Also wash the bar and lines in fresh water, again, it removes the salt crystals. Make sure it is all properly dried or you may end up with a mushroom farm in your kite and bar.

It's also a good time to give the kite bridles, canopy and lines a close inspection for cuts, abrasion, knots or other damage. repair or replace anything that's not right, a small amount of silicone lube on pulleys (if any) to make sure they run free.
Having said all that, back in 2001 I taught a lesson the afternoon before stepping on a plane to live in Hawaii for the summer. I used a Wipika 5m 2 line classic kite for that lesson and it was a cold and blustery Sydney Sou' westerly where the kite ended up drowned, sodden with salt water and covered in sand as it was rolled up and stuffed into it's tiny bag. I threw the kite, in it's bag, into a dark corner of my garage and never thought about it again until 5 months later when I pulled it out and found it was still wet and sandy. I pumped it up, let it dry and it was as good as gold.
Salt water won't allow mould to grow. If it had been fresh water, it would indeed have been more mould than kite. Just to give this thread perspective

DM