Los Locos seasonal overview
Best Surf Season (October - March)
The North Atlantic roars to life during these months, delivering consistent, powerful WNW to NW groundswells that wrap perfectly into Los Locos' west-north-west exposure. Average wave heights hover between 1.8m and 2.1m, with long periods averaging 11.9 to 12.9 seconds, offering pumping, heavy conditions when the wind aligns. Offshore flow from the south quadrant (SSW, SW, WSW) is most frequent, blowing clean and groomed lines onto the reef. Strong extratropical cyclones dominate the storm track, sometimes producing XXL swells over 2.5m, but the trade-off is occasional onshore W to NW winds that can shut the place down. When high pressure sets up over the Bay of Biscay, you get that magic combo: long-period swell, sunny skies, and light offshore breezes.
Fair Surf Season (April & September)
Transition months bring a notable drop in average swell energy. April sees heights around 1.5m and periods dipping to 10.8s, while September rebounds slightly to 1.3m and 10.4s. The wind is ideal 43-48% of the time, often from the east through south, but the swell window is still dominated by NW direction. Waves become fun and rippable in the 1-1.5m range, with occasional solid days reaching 2m. The storm track is less active, so you rely on more distant low-pressure systems or early-season hurricanes in September. Consistent but not consistently firing.
Low Surf Season (May - August)
Summer months are a struggle for swell at Los Locos. Average heights sit at 1.0-1.2m, with periods averaging 8.9-10.0s – often small, groveling conditions. The dominant swell remains NW, but at reduced energy: most waves fall in the 0.5-1m range. Thermal low-pressure systems over the Iberian Peninsula drive afternoon sea breezes from the W and NW, which are directly onshore and ruin the wave quality. Offshore wind opportunities still exist, especially in the mornings from the E to SE quadrants (ideal wind around 40-44% of the time), but the lack of swell size and period makes for marginal sessions. It's a time for longboard fun or exploring other coastlines – only the occasional distant Southern Hemisphere swell can juice things up, but those are rare.
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Conditions at Los Locos in May
May: Summer Starter
Average swell height slips further to 1.2m, period to 10.0s – small and often groveling. NW swell still dominates at a massive 53% (mostly 0.5-1.5m), with NNW at 21.8%. Over 70% of swell is under 1m, meaning you'll be hunting for peaks. Ideal wind percentage drops to 40%, as the land heats up and afternoon seabreezes kick in. Easterly winds (ENE, E, ESE) make up 24.1% of observations, providing clean morning conditions. W and WNW onshore winds increase to 25.9%, ruining the afternoon. Swell sources shift to distant low pressures or early season storms. Expect marginal but surfable conditions; longboards or fish are the call.
Average Spot conditions at Los Locos in May
Swell history for May
Wind history for May
Swell quality
Analyze the groundswell consistency at Los Locos 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 Los Locos for your next trip in May.
Ground swell
Ground swell by size
Wind conditions
Evaluate the wind and swell alignment at Los Locos 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 Los Locos.
