Hi, I have a week off in july and wondered about some small wave SUPing in Phuket. There seems to be plenty of surf schools and flat water sup hire but I can't find much for sup board rental where the waves are. Anyone recommendations? Thanks

There are not too many options for SUP rental in Phuket. Even when you do find a place on the beach around Kata, Patong or Kamala there won't be very many options available. Generally very large all round SUP's.
If you get the chance to visit Khao Lak which is about 1hr north of Phuket you can stop by The Board Factory Co., Ltd. they have plenty of SUP's for rent, or memories beach bar also has quite a few SUP's for rent.

Thanks! Bali it is then ??

You will definitely get better waves in Bali