May in Caloundra averages a daily high of 23.6°C with nights around 13.6°C. Expect roughly 11.1 wet days totalling 161.3mm. Comfortable conditions for being outdoors all day.
Across the year, the best time to visit Caloundra is June–November.
Based on MAROOCHYDORE AERO, AS (22.8km), 1995–2024. 29 years of May data.