Surfing in Portland, Maine, peaks during the fall when hurricane remnants bring the most consistent swells, requiring thick wetsuits. Spring offers manageable, albeit smaller, waves. During deep winter, sessions are challenging due to ice and extreme cold. Summer is generally flat, better suited for SUP. Shops are generally busy on weekends year-round; booking lessons or specialized rentals in advance, especially from September through November, is highly recommended to secure gear. Before going in, check the local beach forecast and talk to the lifeguard on duty (National Weather Service advice).