If you're looking for summer vibes, the best time to travel to Colac is in January, February and December, when the average temperature reaches 25.76 °C, while January, December and February are the 3 sunniest months of the year, with an average of 71.47 hours.
However, if you prefer colder temperatures, make sure you visit Colac during July, June or August to experience an average of 4.53 °C.
For those who don't care too much about temperatures, but want to avoid getting wet in the rain, it's important to avoid travelling during January, February and March, when the average precipitation in Colac is 3 mm, while the months of January, February and March are drier, with an average of 0 mm.