Sopelana - surf spot statistics

Best Surf Season (October - March)

The North Atlantic roars to life during these months, with powerful extratropical storms churning up long-period swell that pounds the Basque coast. Average wave heights hover between 1.5m and 2.1m, with periods often exceeding 12s – producing pumping, firing conditions at this NW-facing beach. The dominant swell directions (NW, WNW, NNW) align perfectly with Sopelana's exposure, while the frequency of offshore winds (S, SSW, SW, WSW) peaks around 30-38% of the time, especially in October. This is prime time for clean, powerful surf – the kind that draws the region's most committed crew.

Fair Surf Season (April, May, September)

As the jet stream relaxes, swells become more inconsistent and average height drops to 1.2-1.4m with periods around 10-11s. While the Azores High begins to dominate, occasional cold fronts still bring pulses of WNW-NW swell that can offer fun, rippable waves on a good day. April and May see a mix of small to fun-sized surf, often with lighter winds – though offshore breezes are less frequent (<28-35%). September is a transition month where the first autumn lows begin to stir, making it a sneaky good period for clean, punchy waves before winter sets in.

Low Surf Season (June - August)

Summer settles in and the swell machine shuts down. Average wave heights drop to just 1.0m with periods around 8.8-9.2s, resulting in small, groveling surf at best. The dominant swell remains from the NW quadrant, but waves rarely exceed 1.5m. Offshore wind percentages hover around 27-29%, but the main culprit is the lack of consistent swell energy. This is the season for longboard cruises and foil sessions – not the time to expect pumping waves. When a rogue NW groundswell sneaks in, the conditions can improve temporarily, but it's the quietest period of the year.

October: Prime Time Arrives

October is the pinnacle of the surf season at Sopelana. Average swell height reaches 1.5m with a period of 11.2s – powerful, long-period. The dominant swell directions – NW (45.4%), WNW (20.6%), and NNW (11.5%) – deliver consistent, well-organized lines. Over 35% of waves exceed 1.5m, with some reaching XL. The best part? Ideal wind occurs a whopping 38% of the time, with S (10.5%) and SSW (8.7%) providing glassy offshore conditions. The North Atlantic comes alive with early season storms, and the combination of clean, powerful swell and favorable winds makes October the month to plan your trip for. Expect pumping, firing surf with epic potential.