Zambujeira do Mar in Portugal is a powerful, exposed beach break that works best with consistent ground swells and favorable offshore winds. The data shows that the best months for surfing here are from October through March, when ground swell dominates (67%-92% of the time) and swell heights average 1.8m to 2.4m. These months offer the most reliable and sizable waves, with November to February standing out as the peak period—ground swell frequency exceeds 76%, and mean swell size remains above 2.1m. However, wind conditions are often challenging, with good offshore winds only occurring 23%-29% of the time in winter, meaning surfers will frequently contend with onshore or cross-shore winds. Spring (April-May) and early autumn (September) provide transitional conditions, with a mix of ground and wind swells, though swell size drops to 1.4m-1.8m. The summer months (June-August) are the least favorable, as wind swells dominate (73%-84%), resulting in smaller, less consistent waves (1.3m mean height) and poor wind conditions (only 13%-16% good wind days). While occasional clean days can happen, summer is generally better suited for beginners or longboarders due to the smaller, messier waves. For experienced surfers seeking powerful, well-formed waves, the winter months are ideal despite the frequent onshore winds. Late autumn (October-November) and early spring (March) offer a good balance of size and slightly improved wind odds. Patience and flexibility are key, as clean conditions are relatively rare, but when they align, Zambujeira do Mar delivers high-quality, powerful surf.