Costa da Caparica in Portugal offers consistent surf conditions year-round, though the best months for surfers generally fall between October and March. During this period, ground swell dominates (74–91% of the time), providing cleaner, more powerful waves with mean swell sizes ranging from 1.5m to 2.1m. Winter months, particularly December to February, bring the largest swells (2.0m+), but wind conditions are less favorable, with bad winds occurring 62–64% of the time, often due to onshore winds from northerly or westerly systems. The shoulder seasons of October–November and March offer a good balance, with solid ground swell (63–84%) and slightly improved wind stats (35–36% good winds). April and September can still deliver decent sessions, though ground swell drops (46–64%) and wind conditions worsen (71–65% bad winds). From May to August, surf quality declines significantly—swell size drops below 1.3m, wind swell dominates (58–82%), and bad wind conditions peak (68–74%). While summer sees smaller, choppier waves, it can still be surfable for beginners or longboarders. For intermediate to advanced surfers seeking quality rides, the autumn and winter months are ideal despite wind challenges, while spring and summer are better suited for casual surfing in less demanding conditions.