March in Alexandria averages a daily high of 13.6°C with nights around 2°C. Expect roughly 11.2 wet days totalling 82.4mm. Generally workable, with some weather to plan around.
Across the year, the best time to visit Alexandria is September–October.
Based on OXON HILL, MD US (4.6km), 1995–2024. 19 years of March data.