I keep my Arends 33 in Townsville most of the year and feel your pain. Annually I give the topsides and deck
a light acid wash, then hand polish over several days with 3M Marine
Restorer and Wax. I then finish off the entire boat
with Collinite Heavy Duty Paste Fleetwax. I get fairly good results and she stays looking swish until the summer heat really kicks in.
I only polish in the mornings when the air is cool and there is no direct sunlight heating
the surfaces, so it takes me about a week floating alongside in the dinghy
to do the entire yacht...
The following week I visit my chiropractor
I hope this helps.