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.

June: Rainy Season Arrives

June maintains a solid average swell height of 1.4m and a period of 13.7 seconds, but the surf quality becomes more inconsistent due to wind. The dominant swell direction remains SSW (87.6%), with a notable increase in SW component (10.7%) — slightly better wrap around the point? Actually SW is directly on the optimal list. Ideal wind drops to 30% as the trade winds weaken and the ITCZ pushes north. Onshore winds from the WSW and W become more common, especially in the afternoon. The early mornings still offer a window of light variable winds, and the long-period groundswell ensures plenty of energy even when the wind picks up. For those willing to deal with occasional roughness, there are still plenty of fun, rippable waves between the squalls.