El Muro - surf spot statistics

El Muro in Chile is a consistent surf spot with reliable ground swells year-round, rarely experiencing flat conditions. The swell is predominantly ground swell, accounting for 88-96% of the time, with minimal wind swell interference. Mean swell heights range between 1.5m to 1.8m, peaking from May to August, offering slightly larger and more powerful waves during these months. However, wind conditions are challenging, with bad (onshore or unfavorable) winds dominating 83-95% of the time. The best wind windows appear from May to July, when good wind probabilities rise to 14-17%, though still low overall. Given these factors, the optimal months for surfing El Muro are May through July, when swell size is marginally bigger, and wind conditions, while still often poor, have slightly higher chances of being rideable. Early mornings or protected sections may help mitigate wind issues. Outside this window, swells remain steady but wind conditions worsen, making clean surf sessions rare. Advanced surfers comfortable with stronger winds and consistent ground swell will find the spot surfable year-round, but mid-winter offers the best compromise between swell energy and occasional favorable winds.

December at El Muro brings consistent, quality surf with an average swell height of 1.6m and a solid period of 13.8s—ideal for generating powerful, well-shaped waves. The majority of swell comes from the SW (51% of waves between 1-2.5m), WSW (17% in the 1-2m range), and WNW (16% in similar sizes), offering clean, long-period groundswells that peel reliably. Wind conditions are less favorable, with only 5% of days providing ideal offshore winds (mostly light ENE-E or W-NW breezes). However, prevailing winds are often onshore (SSW-SW, 30% of days at 10-30kph), which can create choppy conditions. While bigger days (2-2.5m) occur 7-8% of the time, the spot handles size well, and the extended period ensures energy. Expect a mix of clean mornings and wind-affected afternoons—patience or dawn patrols pay off. Experienced surfers will find plenty of hollow, fast sections, but wind management is key.