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.

July at Zurriola typically offers small to moderate surf conditions with an average swell height of 0.8m and a decent period of 9.1s, suggesting relatively clean and organized waves. The dominant swell directions are from the NW and NNW, contributing to the majority of rideable waves, particularly in the 0.5-1.5m range. Around 83% of waves fall under 1.5m, making it suitable for beginners and intermediates, while larger sets (1.5-2.5m) occur less frequently (about 5% of the time). Wind conditions are only ideal 16% of the time, with the most favorable winds coming from the NE to SE quadrant, offering light offshore or cross-offshore effects. However, the prevailing winds are often from the NW and WNW, which can create onshore chop at higher speeds (10-30kph). Overall, expect smaller, manageable waves with occasional clean sessions, but wind interference is common. It's a decent month for relaxed surfing, though not prime for advanced surfers seeking powerful waves.