Gruissan - surf spot statistics

Gruissan, France, is a surf spot with relatively modest conditions year-round, best suited for beginners or longboarders due to its generally small swell and frequent onshore winds. The best months for surfers are late autumn and winter, particularly from November to February, when ground swell contributions peak (20–24%) and mean swell size reaches around 1.0–1.1m. Wind conditions remain poor throughout the year, with good wind days rarely exceeding 18% (July), but winter months see slightly better consistency despite high bad wind percentages (88–90%). Spring and summer (May–August) are the least favorable, with minimal ground swell (4–12%), high no-swell days (48–60%), and smaller waves (0.5–0.7m). September and October offer a transitional period with improving swell but still inconsistent winds. Overall, Gruissan is not a high-performance surf destination, but winter provides the most rideable waves, albeit with challenging wind conditions. Surfers should prioritize late-season sessions when swell energy is marginally higher, though patience is required due to the spot's limitations.

November in Gruissan offers variable surf conditions with an average swell height of 1.0m and a moderate period of 6.5s. The best swells come from the NW and W directions, producing the most rideable waves in the 0.5-2.5m range, with a notable frequency of waves between 1-2.5m. The ESE and SE swells also contribute, though with slightly smaller but still surfable waves. Wind conditions are critical, with only 11% of the time offering ideal offshore winds for surfing. The most challenging winds come from the NW and W, often blowing onshore at 20-50kph, which can create choppy or blown-out conditions. However, when winds are lighter (under 20kph) from the E or NE, the conditions improve significantly. Surfers should target days with NW swells and lighter E or NE winds for the best sessions. Overall, November can deliver decent surf, but consistency depends heavily on wind alignment—patience and flexibility are key.