July in Launceston is the rainiest and the warmest month of the year. In July, the weather in Launceston is typically warm. Average daily high temperature in July is about 18 degrees above zero. On average, Launceston has 25 rainy, 5 sunny, and 1 cloudy day in July. The rains are usually heavy. July as well as January, February, March, and May is considered the most uncomfortable time to visit Launceston.