Les Cavaliers seasonal overview
Best Surf Season (November - March)
Winter at Les Cavaliers is when the North Atlantic truly delivers. From November through March, the clash of cold Arctic air masses with the mild waters of the Gulf Stream generates a relentless parade of low-pressure systems. These systems send powerful, long-period WNW-to-NW groundswells marching toward the French coast. Average wave heights sit in the 1.6m to 1.8m range with periods often exceeding 12 seconds, translating into clean, hollow waves breaking along the beach. The wind statistics are equally promising: offshore to side-offshore breezes from the south through southwest quadrants blow over 40% of the time, creating pristine, glassy conditions. This is the prime window for experienced surfers to chase pumping, firing sets at this exposed WNW-facing beach.
Fair Surf Season (April & October)
These shoulder months mark the transition between the active winter pattern and the sluggish summer regime. April sees the last of the strong winter storms, with average swell dropping to 1.2m and periods slipping to 11 seconds. While still rideable, the consistency decreases, and the window for offshore winds narrows to about 29% of the time. October, conversely, is the awakening month: the first autumn lows begin to spin up, boosting average wave heights back to 1.3m and periods to 11.3s. Ideal wind percentages jump to 41% as the thermal gradient reestablishes. These months offer a mixed bag – expect some quality days mixed with flat spells or less favorable wind, but the potential for excellent sessions remains.
Low Surf Season (May - September)
Summer arrives with a dramatic shift in the atmospheric steering currents. The jet stream retreats northward, and the North Atlantic storm track weakens considerably. Swell heights dwindle to an average of 0.9m to 1.1m from May through September, with wave periods hovering around 9 to 10 seconds – typical of weak, short-period windswell. The dominant wind pattern becomes onshore, with westerly and northwesterly breezes prevailing. Ideal offshore wind percentages plummet to between 16% and 29%, making clean waves a rare commodity. During this period, Les Cavaliers is best suited for longboarders and beginners looking for small, fun-sized waves in the early morning windows when local land breezes can occasionally offer a few hours of groomed conditions. The upside? Warmer water and lighter crowds.
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Conditions at Les Cavaliers in May
May: Summer's Slow Onset
May signals the true beginning of the low surf season. Average swell height falls to 1.0m and the period shortens to 10.1s, characteristic of low-energy windswell rather than powerful groundswell. The swell remains dominated by NW and WNW (over 90% combined), but nearly all of it is below 1.5m. Ideal offshore wind plummets to just 23% of the time, with onshore westerlies and northwesterlies becoming the norm. The thermal low over the Iberian Peninsula often draws in a persistent sea breeze from the northwest, further degrading conditions. Early mornings can still offer a brief window of cleaner surf when the land breeze kicks in, but generally, May is best suited for small-wave gear and longboards. It's a month to work on your turns rather than your tube rides.
Average Spot conditions at Les Cavaliers in May
Swell history for May
Wind history for May
Swell quality
Analyze the groundswell consistency at Les Cavaliers 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 Les Cavaliers for your next trip in May.
Ground swell
Ground swell by size
Wind conditions
Evaluate the wind and swell alignment at Les Cavaliers 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 Les Cavaliers.
