March in Tongzhou averages a daily high of 12.8°C with nights around 1.8°C. Expect roughly 3 wet days totalling 10.2mm. Generally workable, with some weather to plan around.
Across the year, the best time to visit Tongzhou is April–May.
Based on BEIJING, CH (32.5km), 1995–2024. 18 years of March data.