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May in Cairns averages a daily high of 27.9°C. Expect roughly 14.2 wet days totalling 86.5mm. Generally workable, with some weather to plan around.
Across the year, the best time to visit Cairns is June–September.
Based on CAIRNS POST OFFICE, AS (2.1km), 1995–2024. 17 years of May data.
See all twelve months for Cairns →