March in Mount Pleasant averages a daily high of 19.8°C with nights around 9°C. Expect roughly 8.3 wet days totalling 80.7mm. Comfortable conditions for being outdoors all day.
Across the year, the best time to visit Mount Pleasant is March–May.
Based on SULLIVANS ISLAND, SC US (3.6km), 1995–2024. 25 years of March data.