3. Barcelona in March: Weather and Event Guide - TripSavvy
Description: The Weather in Barcelona in Late March: Average Temperatures and Recent Years' Weather. Late March sees Barcelona temperatures jump a couple of degrees. Though the evenings are still a little chilly, it wouldn't be inconceivable to sunbathe on some of the warmer days at the end of the month. March 25 Averages: High, 62°F, Low, 48°F, Precipitation, 0.07".