If you're looking for summer vibes, the best time to travel to Goulburn is in January, February and December, when the average temperature reaches 24.95 °C, while December, January and October are the 3 sunniest months of the year, with an average of 116.4 hours.
If you prefer colder temperatures, however, make sure you visit Goulburn during the months of June, July and August to experience an average of 2.82 °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 July, February and March, when the average precipitation in Goulburn is 4.33 mm, while the months of January, February and March are drier, with an average of 0 mm.