Santa Marinella, Italy, offers a mix of conditions throughout the year, but the best surfing months are primarily during the winter season when ground swells are more consistent and swell sizes are larger. From November to February, ground swell percentages peak between 18-23%, with mean swell sizes ranging from 1.2m to 1.3m. While wind conditions are generally poor (over 90% unfavorable), these months still provide the most reliable surf due to the higher likelihood of ground swells, which produce cleaner and more powerful waves compared to wind swells. March sees a slight drop in ground swell (20%) but remains surfable, while April and October offer transitional conditions with moderate ground swells (13-14%) and slightly better wind chances (12% good wind in April, 8% in October). The summer months (May to September) are the least favorable, with ground swells dropping to as low as 3-8% and mean swell sizes under 1m, making waves rare and weak. Wind swell dominates during this period, but onshore winds (88-92% bad conditions) often create choppy, less ideal surf. If you're looking for the best time to score waves in Santa Marinella, prioritize late autumn to early winter (November to February) despite the challenging winds, as this is when the swell energy is highest and the waves are most surfable.