Mundaka - surf spot statistics

Mundaka is a world-class left-hand river mouth wave that thrives on powerful, well-organized ground swell and favorable wind conditions. The data shows that the best months for surfing here are from October through March, when ground swell dominates (65-85% occurrence), mean swell heights range from 1.3m to 1.8m, and the likelihood of good wind conditions peaks at 30-31% (compared to the summer lows of 19-23%). Winter months, particularly December to February, offer the most consistent and powerful swells, though wind conditions remain challenging (69-72% bad winds). Spring and summer see a sharp decline in quality, with increasing wind swell dominance, smaller waves (0.8-1.2m), and worse wind odds (74-81% unfavorable). September marks the transition back to better conditions, while April through August are generally inconsistent due to higher wind swell influence and onshore winds. For experienced surfers targeting Mundaka's legendary barrels, the prime window is autumn through early winter when the Atlantic swell engine is most active and wind chances slightly improve, despite still being predominantly marginal. The spot's reliance on precise sandbar formation means these stats only tell part of the story, but the trend clearly favors late fall and winter for the biggest, cleanest sessions.

October in Mundaka offers decent surfing conditions with a mix of small to medium-sized swells and variable winds. The average swell height is 1.3m with an impressive 11.3s period, indicating good energy and rideable waves. The dominant swell directions are NNW, NW, and WNW, which are ideal for this break, delivering the best swell distribution—over 40% of waves come from these directions, with a significant portion in the 1-2.5m range. Clean conditions are present 31% of the time when winds are favorable (generally light offshore or cross-offshore from the east to southeast). However, stronger onshore winds from the southwest to west can disrupt conditions, particularly when speeds exceed 20kph. While bigger swells (over 2.5m) are rare, the consistency of mid-sized waves makes October a reliable month for experienced surfers, especially when wind and swell align. Expect the best sessions early in the day before winds pick up. Mundaka’s world-class wave needs the right combination of swell direction and wind, but when it fires, it’s exceptional.