In July 2004, Rupert Grint finished Richard Hale School, taking his GCSE examinations. When not working, he enjoys learning to ride the unicycle, drawing/sketching, and playing golf. Like Ron Weasley, he has stated that he has a fear of spiders.
With his earnings from the "Harry Potter" series, Grint purchased an ice cream van, and stated jokingly that if his career falls out after the end of the seven part series, then he'll still have the van. According to Emma Watson from her interview with Conan O'Brien, it has all the ice cream and chocolate droppings in it.
Source: Wikipedia