January in Muar averages a daily high of 31.9°C with nights around 23.5°C. Expect roughly 10.9 wet days totalling 110.6mm. Generally workable, with some weather to plan around.
Across the year, the best time to visit Muar is June–August.
Based on MALACCA, MY (42.8km), 1995–2024. 15 years of January data.