Barra de Potosi - surf spot statistics

Barra de Potosi, Mexico, offers consistent year-round surf conditions with ground swells dominating the swell regime almost exclusively. The swell is nearly always present, with ground swell percentages ranging from 90% to 100% across all months, ensuring reliable wave energy. The mean swell size varies from 0.9m in the winter months (December-January) to a peak of 1.6m in September, suggesting slightly larger and more powerful waves as the year progresses toward the late summer and early fall. Wind conditions are the primary limiting factor, with unfavorable winds occurring more frequently (49-68%) than favorable winds throughout the year. The best balance between swell size and wind conditions occurs from June to September, when the swell remains solid (1.5-1.6m) and the likelihood of good winds improves slightly, peaking in September at 51%. While the waves are rideable year-round due to the high ground swell consistency, late summer and early fall (June-September) present the most favorable combination of swell size and marginally better wind odds, making this period the optimal window for surfers seeking dependable conditions. Winter months offer smaller, more manageable waves but come with higher chances of onshore winds.

In September, Barra de Potosi offers consistent surf conditions with an average swell height of 1.6m and a healthy period of 14.4s, ensuring well-spaced, powerful waves. The swell predominantly arrives from the SSW (65.5%) and SW (18.6%), with the majority falling in the 1-2m range—ideal for intermediate to advanced surfers. Notably, 31.1% of SSW swells are between 1-1.5m, while 27.8% of SSW and 6.35% of SW swells reach 1.5-2m, providing punchy but manageable waves. Winds are favorable 51% of the time, typically light (0-20kph) and offshore from the W-NW quadrant (e.g., WNW at 4.22% and NW at 4.17%), though occasional SE-ESE winds (15-30kph, 1.39-1.82%) can create choppier conditions. Expect clean, groomed waves in the mornings before onshore breezes pick up. Overall, September delivers reliable surf with a mix of playful and powerful waves, best suited for surfers comfortable with overhead conditions. Wind windows should be monitored, but the spot’s exposure to SSW swells ensures consistent energy.