La Graviere - surf spot statistics

La Gravière in France is a powerful beach break known for its heavy, hollow waves, best suited for experienced surfers. The most consistent and high-quality conditions occur from October through March, when the Atlantic swells are strong and frequent. During these months, ground swells dominate, with percentages ranging from 66% in October to 90% in January, delivering mean swell sizes between 1.5m and 2.1m. Swell consistency is highest in winter, particularly in January and December, when ground swell probabilities peak above 84% and wave heights average around 2.0m or more. Wind conditions are more variable but tend to be most favorable in October, November, February, and December, when good wind days occur around 39–41% of the time. Spring (April–June) and summer (July–September) see a decline in quality, with ground swells becoming less dominant and wind swells or weaker conditions taking over. Swell size drops below 1.5m after March, and adverse winds prevail, with bad wind probabilities exceeding 59% from April onward. September marks a transitional month with improving swell but still inconsistent winds. For powerful, clean waves, the ideal window is late autumn to early winter, particularly October–February, when solid swells meet relatively better wind odds. Summer is generally poor, with small, wind-affected waves. Advanced surfers should target the peak winter months for heavy barrels, though offshore winds are less reliable and require careful timing.

September at La Gravière offers decent surf conditions, with an average swell height of 1.2m and a solid period of 10.6s, indicating well-organized, powerful waves. The dominant swell directions are WNW and NW, which align best with the break, producing rideable waves (1-2.5m) around 60% of the time—ideal for intermediate to advanced surfers. Smaller swells (0.5-1.5m) from the W and WSW contribute occasionally but are less consistent. Wind conditions are favorable 36% of the time, typically light to moderate (10-20kph) from the N-NE or SW-WSW, which often means offshore or sideshore winds that clean up the waves. However, stronger winds (20-30kph) from the W or NW can occasionally create choppy conditions. Overall, September delivers a mix of manageable mid-sized swells and fair wind windows, making it a reliable month for scoring quality sessions, especially on WNW/NW swells with lighter winds.