Orio, Spain, offers consistent surf conditions year-round, but the best months for surfers are typically from October through February when ground swell dominates, wind conditions improve, and wave heights are more favorable. During these months, ground swell percentages range from 65% to 85%, ensuring cleaner, more powerful waves, while mean swell sizes average between 1.2m and 1.6m. Wind conditions also improve slightly, with good wind days peaking at 34% in October and December, though prevailing onshore winds still challenge surfers frequently. The winter months (December-February) provide the largest swells (1.5m-1.6m), but wind conditions remain tricky, with bad wind days exceeding 65%. Spring and summer (April-August) see a significant drop in ground swell, replaced by wind swell, which creates choppier, less predictable waves. Wave heights diminish to 0.8m-1.1m, and bad wind conditions dominate (76%-84%), making these months less ideal for quality surf. September marks the transition back into better conditions, with ground swell increasing to 47% and waves building again to 1.0m. For advanced surfers seeking bigger, cleaner waves, late autumn and winter are the prime seasons despite the challenging winds, while summer caters mostly to beginners or those tolerant of smaller, wind-affected surf.