December in Muar averages a daily high of 31.4°C with nights around 24°C. Expect roughly 16 wet days totalling 181mm. 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. 17 years of December data.