Temperatures in Tarragona remain mild throughout the year. Winter lows are in the low 50s, and summer highs reach the upper 70s to the low 80s. Spring and fall are the most pleasant times to visit Tarragona, as it can get quite humid in the summertime. Rainfall is often highest during the late fall and early winter, with September being the month that receives the most rain.

One event you may want to catch whilst in Tarragona is Carnaval in February. This weeklong event includes parades featuring colorful costumes, a variety of foods, music, dancing, and the crowning of the carnival King and Queen.