All Year Around !  
Luckily flying in Queensland our weather conditions are mostly good year around, so we have no closed season.
Its hard for us to choose the weather several days ahead and so by all means give us a call maybe 2 days before to discuss your weather options,  but most of the time we will need to pick you up and go to the launch site to decide if its possible to fly. 
Don't worry, we wont fly if there is any chance of unsuitable conditions, but we do want to give you the best chance of flying on the day you have chosen.