March in Mackay averages a daily high of 29.7°C with nights around 22.2°C. Expect roughly 14.6 wet days totalling 229.3mm. Generally workable, with some weather to plan around.
Across the year, the best time to visit Mackay is June–September.
Based on MACKAY AERO, AS (2.4km), 1995–2024. 26 years of March data.