Praia da Rocha - surf spot statistics

Best Surf Season (October - March)

This is prime time for Praia da Rocha. The North Atlantic storm track is active, consistently sending long-period swell toward the Algarve. Average wave heights range from 1.1m to 1.4m and periods from 11.1s to 12.9s, offering powerful, well-formed waves. Offshore wind frequencies peak during these months (37-43%), with northerly and northeasterly flows providing clean grooming. While the dominant swell direction is often from the northwest, it refracts into the beach and combines with occasional direct southwesterly swell for variety. Expect consistent surf with plenty of head-high to overhead sets.

Fair Surf Season (April - June & September)

Transitional months bring a mix of conditions. Swell energy decreases from winter's peak, with average heights dropping to 0.8-1.1m and periods shortening to 8.9-10.8s. Offshore winds are less frequent (28-37%), but still occur often enough for clean sessions, especially in the mornings. This is the time for smaller boards and groveling when the swell is low, but occasional late-season or early-autumn storms can still deliver fun, rippable waves. September sees a notable uptick in period and offshore wind percentage as the Atlantic comes back to life.

Low Surf Season (July - August)

Summer is the quietest time for surf. Average wave heights drop to 0.7-0.8m with short periods around 8-8.6s, resulting in small, weak surf. The dominant swell comes from the NW and NNW but lacks the power to wrap effectively. Offshore wind percentages are the lowest of the year (27-30%), and the reliable northwesterly winds often have a cross-shore component. Expect small, fun-sized days suitable for longboards or soft tops, but don't expect pumping surf. Early mornings offer the best chance for clean conditions before the sea breeze kicks in.

September: Autumn Awakening

September marks a dramatic turn. Average swell height rises to 0.8m (still modest), but average period jumps to 10.3s – a huge improvement as the Atlantic begins to stir. The swell direction is still predominantly NW (39.8%) and WNW (30.3%), but direct S-SW swell makes a small comeback (2.8% total). More importantly, the period indicates more powerful groundswell that wraps in with better shape. Offshore wind frequency climbs to 37%, the highest since March. N (9.3%) and NNW (20.6%) winds are reinforced by increased E and ENE flows (combined 6.4%) – these are perfect offshore directions. The wind rose shows that onshore S-SW winds (9.7% total) are still present but losing ground. Swell heights are still small: 76% in the 0.5-1m range, 18% in 1-1.5m. But the quality improves significantly. September is a transitional month where early autumn lows and tropical systems can produce unexpected long-period swell. The combination of longer-period swell and increasing offshore wind days makes this the start of the comeback season.