July in Bairnsdale is the coldest month of the year. In July, the weather in Bairnsdale is typically warm. Average daily high temperature in July is about 13 degrees above zero. On average, Bairnsdale has 13 sunny, 12 partly cloudy, 5 rainy, and 1 cloudy day in July. The rains are usually light. July as well as June and August is considered the most uncomfortable time to visit Bairnsdale.