Zurriola - surf spot statistics

Zurriola in Spain offers the most consistent surf conditions during the winter months, particularly from October through February, when ground swell dominates with percentages ranging from 65% to 85%. The mean swell size during this period averages between 1.2m and 1.6m, providing solid wave energy for intermediate to advanced surfers. However, wind conditions are less favorable in these months, with bad onshore winds occurring 65–68% of the time, peaking in December and January. The best window for cleaner conditions is typically in October and November, when good wind days reach 32–35%. Spring (March–May) sees a gradual decline in ground swell (40–76%) and an increase in wind swell, while summer (June–August) delivers smaller, less reliable waves (0.8m mean size) dominated by wind swell, coupled with poor wind conditions (79–84% bad winds). September marks the transition back to better ground swell (47%) and slightly improved winds (26% good), making early autumn a reasonable alternative if winter conditions are too crowded or unruly. For the most powerful and consistent surf, target October–February, but expect challenging winds—early sessions or sheltered spots may help mitigate this. Summer is best suited for beginners due to smaller waves, though wind interference remains an issue.

October at Zurriola offers consistent surf conditions with an average swell height of 1.2m and a solid period of 11.5s, indicating well-spaced, quality waves. The dominant swell direction is from the NW, NNW, and WNW, with the highest frequency of waves in the 0.5-2.5m range, peaking around 1-1.5m—ideal for intermediate to advanced surfers. While smaller waves (0.5-1.5m) are common, there are occasional larger sets (2-2.5m), particularly from the NW and NNW. Wind conditions are favorable 35% of the time, with light to moderate speeds (0-20kph) prevailing, mostly from the S, SSE, and SW. Stronger winds (20-30kph) occasionally come from the S and SSW but rarely disrupt surf quality. Offshore winds (E-ENE) are infrequent but can create glassy conditions when they align. Overall, October provides reliable surf with good shape and manageable wind, though larger swells may require experience due to power and occasional onshore breezes.