To visit Springbrook, Australia, any time of the year is a good time.
During the Australian summer that is from November-February you can get-away from the coastal area heat and cool mountain air can be enjoyed. At 1,000m the temperature is noticeably cooler.
During the winter that is from June to September, you can have a pleasant walk under the sky which is magnificently blue. In the evenings you can enjoy a warm wood campfire.