Conditions at Mundaka in May
May: Small, Clean, and Surprisingly Fun
May sees the winter swell engine shut down further. The average wave height drops to 3.5ft (1.1m) and period to 9.8s, meaning more short-period groundswell than long-period power. Yet the direction regime is as good as it gets: NW swell dominates a remarkable 49.5% of the time, with WNW at 21% and NNW at 19.4%. Almost all of that energy is small-most readings fall between 2-5ft (0.5-1.5m), with NW alone producing 17.6% in the 3-5ft (1-1.5m) range. Fun-sized, rippable, and lined up, if not heavy.
Wind consistency is the limiting factor. Offshore S/SSW flow drops, and WNW winds become the most frequent at 15.2%, while NW and NNW winds add another 21.8% of potentially onshore/cross-offshore influence. But with lighter overall wind speeds, many late afternoons glass off. When the sea breeze dies under a spring high, May delivers sunny, playful waves at the point-perfect for groveling on the inside sections. Water temperature climbs to 16.1°C and air averages 15.2°C; a 3/2mm is your friend.
Average Spot conditions at Mundaka in May
Swell history for May
Wind history for May
Swell quality
Analyze the groundswell consistency at Mundaka during May. Based on historical data, there is a % probability of groundswell occurring this month. The chart below provides a detailed breakdown of the average wave height distribution, offering deep insights into the swell quality and surf potential you can expect at Mundaka for your next trip in May.
Ground swell
Ground swell by size
Wind conditions
Evaluate the wind and swell alignment at Mundaka for May. Our analysis shows that favorable offshore or side-shore winds coincide with surfable swell approximately % of the time. The accompanying graph illustrates the average size distribution of waves during these optimal wind windows at Mundaka.