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.

July in Mundaka offers modest surf conditions, primarily dominated by swells from the NW, NNW, and WNW directions, which account for the majority of wave energy. The average swell height is 0.8m with a decent period of 8.9s, indicating relatively clean but smaller waves. Most waves fall in the 0.5-1.5m range, with the largest contributions coming from NW (20.17% at 0.5-1m) and NNW (29.52% at 0.5-1m), though wave quality diminishes above 1.5m due to limited occurrences. Wind conditions are variable, with only 19% of the time being ideal for surfing. The most favorable winds are light (0-20kph) and predominantly from the N, NNE, or NE, while stronger winds from the W and WNW can create choppy conditions. For advanced surfers, July is a season for smaller, manageable waves with occasional clean conditions, but expect frequent wind-affected sessions and limited size.