Alvor - surf spot statistics

Alvor in Portugal offers surfable conditions year-round, but the best months for surfers seeking quality waves and favorable winds are typically from October to March. During this period, ground swell dominates, with percentages ranging from 62% in October and April to 88% in January, ensuring more consistent and powerful waves. The mean swell size is also larger, averaging 1.4m to 1.9m, with the biggest waves occurring in January, February, and December (1.9m). Wind conditions are less ideal, with bad winds (onshore or cross-shore) prevailing around 65-70% of the time, but there are still plenty of rideable days with good offshore winds (30-35%). The shoulder months of September and April can still provide decent surf, albeit with smaller swells (1.1m-1.5m) and slightly better wind conditions (38% good winds in September). From May to August, the surf quality drops significantly as wind swells take over, resulting in smaller, less consistent waves (1.0m-1.2m) despite marginally better wind conditions (33-36% good winds). July and August see the highest wind swell influence (81% and 74%) but remain the worst months for serious surfers due to weak swells. Overall, winter months (November-February) are prime for experienced surfers chasing solid ground swells, while intermediate surfers may find late autumn (October) and early spring (March-April) more forgiving.

March at Alvor offers decent surfing conditions with an average swell height of 1.7m and a solid period of 12.1s, indicating well-organized, powerful waves. The dominant swell directions are W, WNW, and NW, contributing the largest share of rideable waves, particularly in the 1-2.5m range. WNW swells alone account for over 14% of waves in the 1-1.5m range and nearly 12% in the 1.5-2m range, suggesting consistent mid-sized surf. Wind conditions are surfable 29% of the time, with lighter offshore winds (N, NNE, NE) occurring frequently but stronger onshore winds (W, WSW, SW) also present. The wind distribution shows a mix of light breezes (0-20kph) from favorable directions, though stronger winds (20-30kph+) from W/SW can occasionally disrupt conditions. Expect a mix of clean days and blown-out sessions—best surf tends to arrive with W/NW swells and lighter NNE winds. Advanced surfers will find the most opportunities, especially when the swell pushes into the 1.5-2.5m range (around 30% of the time).