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.

September at Zurriola offers decent surf conditions, though with some variability. The average swell height is 1.0m, accompanied by a solid period of 10.6s, indicating well-formed and consistent waves. Swell direction is predominantly from the NW, NNW, and WNW, which aligns well with the break, providing the best wave quality in these directions. Around 26% of the time, wind conditions are ideal for surfing—typically light to moderate offshore or sideshore winds. The majority of waves fall in the 0.5-2m range, with NW and NNW directions delivering the most rideable waves (1-2m). However, smaller or weaker swells (0.5-1m) are also common, particularly from the NW and NNW. Wind speeds are mostly under 20kph, but stronger winds (20-30kph) occasionally occur, mainly from W and WNW directions, which may create choppier conditions. Overall, September can provide good surfing opportunities, especially when NW swells combine with favorable winds, but sessions may require patience due to variable wind and swell consistency.