May in Muar averages a daily high of 32.8°C with nights around 24.3°C. Expect roughly 14.2 wet days totalling 155mm. Demanding conditions — pack for it and plan indoor options.
Across the year, the best time to visit Muar is June–August.
Based on MALACCA, MY (42.8km), 1995–2024. 18 years of May data.