March in Canberra is the sunniest month of the year. In March, the weather in Canberra is typically warm. Average daily high temperature in March is about 23 degrees above zero. On average, Canberra has 13 sunny, 9 partly cloudy, 8 rainy, and 1 cloudy day in March. The rains are usually moderate. March as well as February and April is considered the most comfortable time to visit Canberra.