Isla de Santa Marina - surf spot statistics

Isla de Santa Marina in Spain offers surfable conditions year-round, but the best months for experienced surfers are typically from October through March. During this period, ground swell dominates (65–85% of the time), providing cleaner, more organized waves with mean swell heights ranging from 1.5m to 2.0m—ideal for performance surfing. Winter months (December–February) bring the largest swells (1.9–2.0m), though wind conditions are less favorable (only 25–29% good wind days), often creating challenging cross-shore or onshore winds. Autumn (September–November) and early spring (March) strike a balance between decent swell size (1.5–1.8m) and slightly improved wind chances (31–35% good winds). From April to August, conditions deteriorate for high-performance surfing. Swell consistency drops as wind swells become more prevalent (37–73% of the time), and mean swell height falls below 1.4m, often resulting in weaker, less powerful waves. Summer months (June–August) see the smallest swells (~1.0m) and persistent poor wind conditions (68–70% bad winds), making it a better time for beginners or longboarders. September marks a transitional month, with improving ground swell (47%) and marginally better winds (35% good), offering a preview of the coming winter season. For serious surfers, prioritizing late autumn to early winter will yield the most powerful waves, despite wind challenges, while those seeking a compromise between swell and wind might prefer March or October.

October at Isla de Santa Marina offers decent surf conditions with an average swell height of 1.5m and a solid period of 11.3s, providing good energy for rideable waves. The dominant swell directions are from the NW, NNW, and WNW, which align well with the beach setup, delivering consistent waves in the 1-2.5m range. Larger swells (over 2.5m) are rare but possible, mainly from the NW quadrant. Wind conditions are favorable 34% of the time, typically light to moderate (under 20kph). Offshore or sideshore winds from the N, NE, or E occur occasionally, but stronger onshore winds from the S to WSW can occasionally degrade conditions. Overall, October is a reliable month for intermediate to advanced surfers, with the best sessions coming when NW swells coincide with light northerly or easterly winds. Expect punchy, well-shaped waves, though size and consistency vary with swell events.