La Isla - surf spot statistics

La Isla in Peru is a consistent year-round surf spot, heavily dominated by ground swells, making it a reliable destination for surfers seeking powerful, clean waves. The swell is almost exclusively groundswell, with percentages ranging from 91% to 99% across all months, ensuring high-quality waves with minimal wind swell interference. The mean swell size varies from 1.4m in January and December to 2.0m from June to August, peaking in the middle of the year. Wind conditions are the primary limiting factor at La Isla, with bad onshore winds prevailing over 93% of the time in every month, often reaching 99-100% from April to November. The best wind conditions, though still rare, occur in January, February, and March, with 4-7% favorable offshore winds—making these months the most promising for surfers. Given these patterns, the optimal window for surfing at La Isla is from February to March. During this period, the swell remains strong (1.5-1.6m) while offering slightly higher chances of clean offshore winds compared to the rest of the year. The larger swell from June to August is appealing for experienced surfers, but the near-constant onshore winds make conditions challenging. If you prioritize wave quality over wind conditions, the mid-year months provide the biggest waves, but expect choppier surf. For the best balance of size and wind, early year surfing is ideal.

November at La Isla, Peru, offers consistently surfable conditions with a dominant swell from the SSW and SW directions, accounting for the majority of wave activity. The average swell height is 1.6m, with a strong average period of 13.8s, indicating well-organized, powerful waves ideal for experienced surfers. The most common wave heights fall in the 1-2.5m range, with a significant portion (over 30%) in the 1.5-2m category, providing hollow, high-performance waves when the angle is right. Wind conditions are less favorable, with only 1% of the time offering ideal offshore winds for surfing. The dominant winds are from the S to SSE at 10-30kph, which can create onshore or sideshore chop, particularly during stronger gusts. While the swell quality is excellent, wind alignment is a limiting factor, making dawn patrol or glassy evening sessions the best bets. Overall, La Isla in November delivers consistent, powerful waves for advanced surfers, but patience is required to score the cleanest conditions.