March in Toowoomba is the rainiest month of the year. In March, the weather in Toowoomba is typically warm. Average daily high temperature in March is about 24 degrees above zero. On average, Toowoomba has 14 rainy, 11 sunny, 5 partly cloudy, and 1 cloudy day in March. The rains are usually heavy. March as well as January, February, and December is considered the most uncomfortable time to visit Toowoomba.