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.

In May, Isla de Santa Marina offers fairly consistent surf conditions with an average swell height of 1.1m and a solid 10.0s period, providing decent energy for intermediate to advanced surfers. The most dominant swell directions are NW, NNW, and WNW, which make up the majority of rideable waves, frequently producing heights between 0.5-2.5m. Cleaner, mid-sized waves (1-1.5m) are common from these directions, with occasional larger sets up to 2.5m. However, winds are only ideal for surfing 30% of the time, often blowing from the NE to E in the light to moderate range (10-30kph), which can create some chop or cross-shore texture. Stronger winds occasionally come from the W and WNW, potentially disrupting conditions. The best sessions occur when winds are lighter (below 20kph) or favorably offshore, typically early mornings. Overall, May delivers surfable waves regularly, but wind conditions heavily influence quality—patience and timing are key for scoring clean, well-shaped waves.