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.

November at Zurriola offers decent surfing conditions with an average swell height of 1.5m and a solid period of 12.2s, indicating well-formed, powerful waves. The predominant swell directions are from the NNW and NW, contributing the most to rideable waves, especially in the 1-2.5m range. These swells are clean and consistent, though smaller waves (0.5-1.5m) also appear frequently from the WNW and N directions. Wind conditions are favorable for surfing 32% of the time, with lighter winds (0-20kph) coming mainly from the S, SSE, and SW, which often provide offshore or cross-shore effects, ideal for wave shape. Stronger winds (20-30kph) from the S and W can occasionally create choppier conditions, but overall, November delivers a mix of manageable waves and decent wind alignment, making it a reliable month for intermediate to advanced surfers. Expect the best sessions when NW/NNW swells combine with lighter S or SW winds.