Roca Loca - surf spot statistics

Best Surf Season (December - April)

During these months, the Pacific coast of Costa Rica experiences the peak of the dry season, characterized by strong, consistent trade winds from the northeast that blow offshore across the Nicoya Peninsula. At Roca Loca, this translates to glassy morning conditions with a steady diet of SSW swell wrapping around the point. The average wave height sits between 1.0m and 1.2m, with periods often exceeding 13 seconds, delivering powerful, long-period groundswell that reels down the reef. The combination of clean offshore winds and solid swell makes this the prime window for classic Roca Loca waves.

Fair Surf Season (May & November)

May and November serve as transition months between the dry and wet seasons. During these months, the trade winds weaken and the Intertropical Convergence Zone (ITCZ) shifts north, allowing for occasional south-hemisphere swells. The swell height can reach up to 1.3m in May with periods of 14 seconds, offering some of the longest period waves of the year. However, wind conditions become more variable, with a higher chance of afternoon onshore breezes from the west. Early morning sessions are still rewarding, making these months a solid option for those willing to time the tides.

Low Surf Season (June - October)

The rainy season dominates from June through October, bringing increased cloud cover, precipitation, and a significant uptick in onshore winds from the WSW and W. The average wave height remains respectable around 1.4m, and the period still hovers in the 13-second range, but wind quality takes a nosedive. The percentage of ideal wind drops to as low as 25% in September. During this period, the swell direction shifts slightly more south-southwest, and the combination of onshore wind and powerful swell can create choppy, blown-out conditions. However, brief windows of light variable winds in the early mornings or during passing cold fronts can still produce punchy, rideable waves for the dedicated surfer.

May: Long Period and Solid Swells

May brings the highest average swell height of the year at 1.3m, paired with the longest average period at 14.1 seconds. This is pure, powerful groundswell. The majority of the swell comes from the SSW (94.2%), but there is also an increase in the 1.5-2.5m range (21%), putting the spot in 'pumping to heavy' territory. Ideal wind peaks at 35%, the highest of any month, thanks to more frequent light offshore flows from the east. However, May is a transition month; the wet season starts to creep in, and afternoon thunderstorms often produce gusty onshore winds from the S and SW. Despite this, the early mornings are often pristine, offering some of the most powerful and consistent waves of the year. If you can commit to dawn patrol, May will reward you with epic, long-period glass.