May in Wellington averages a daily high of 30.3°C with nights around 22.3°C. Expect roughly 10.6 wet days totalling 118mm. Generally workable, with some weather to plan around.
Across the year, the best time to visit Wellington is November–April.
Based on DONALD J. TRUMP INTERNATIONAL AIRPORT, FL US (14.4km), 1995–2024. 30 years of May data.