Santa Catarina, Portugal, offers consistent surf conditions year-round, with the best months for wave quality and favorable winds typically falling between October and March. During this period, ground swell dominates (64-74% of the time), producing larger, more powerful waves, with mean swell sizes ranging from 2.3m to 2.8m. December stands out with the biggest waves (2.8m) and a solid 71% ground swell occurrence, though wind conditions are less ideal (only 21% good winds). November and January also deliver strong ground swells (67-74%) and decent wave heights (2.6-2.7m), but like December, they suffer from high bad wind percentages (78-81%), which can create choppy or onshore conditions. February and March see slightly smaller swells (2.5-2.6m) but maintain a good ground swell presence (68-70%). The summer months (May-August) bring smaller, wind-driven swells (1.2-1.8m) and a higher proportion of unfavorable winds (70-82%), making conditions less reliable for quality surfing. While summer does see a slight uptick in good wind days (27-30% in June-July), the swell size and dominance of wind swell (58-69%) limit wave power. September and April serve as transitional months, with April offering a mix of ground and wind swell (56% ground) and September showing a return to better swell proportions (49% ground). For consistent, high-quality waves, advanced surfers should target the winter months, particularly December to February, despite the wind challenges, while intermediate surfers may find more manageable conditions in late autumn (October-November) or early spring (March-April). Wind luck plays a big role here, as even in peak swell seasons, only about 19-22% of days have favorable offshore winds.