March in Sants-Montjuïc averages a daily high of 16.6°C with nights around 8.4°C. Expect roughly 5.6 wet days totalling 37.9mm. Comfortable conditions for being outdoors all day.
Across the year, the best time to visit Sants-Montjuïc is May–July.
Based on BARCELONA AEROPUERTO, SP (11.4km), 1995–2024. 30 years of March data.