If you're looking for summer vibes, the best time to travel to Caloundra is in January, December and February, when the average temperature reaches 30.28 °C, while August, July and September are the 3 sunniest months of the year, with an average of 79.3 hours.
If you prefer colder temperatures, however, make sure you visit Caloundra during the months of July, June and August to experience an average of 12.41 °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, August and January, when the average precipitation in Caloundra is 10.5 mm, while the months of January, February and March are drier, with an average of 0 mm.