Nazare - surf spot statistics

Nazaré, Portugal, is renowned for its massive waves, particularly during the winter months when powerful ground swells dominate. The best time for experienced surfers seeking large, clean waves is from November through February. During these months, ground swell prevalence is extremely high (77–92%), with mean swell sizes ranging from 2.2m to 2.5m. However, wind conditions are less favorable, with bad winds (onshore or cross-shore) occurring 60–64% of the time. Despite this, the sheer size and consistency of the swells make these months prime for big-wave surfing. From March to October, conditions become progressively less consistent, with a notable drop in ground swell dominance and smaller waves (1.4–2.2m). April to August sees the highest proportion of wind swells, which are generally less powerful and less desirable for Nazaré’s iconic surf. September and October offer a transition period with improving ground swells (47–66%) and slightly better wind conditions (39–40% good winds). While summer months (June–August) are less ideal for big waves, they may still attract surfers comfortable with smaller swells, though wind conditions remain mostly unfavorable. For serious surfers targeting Nazaré’s legendary waves, the winter season (November–February) is the peak window, despite the frequent onshore winds, as the raw power and size of the swells outweigh the wind drawbacks.

December in Nazaré delivers powerful and consistent surf, with an average swell height of 2.4m and a strong 12.7s period, indicating well-organized, clean waves. The primary swell direction is WNW, NW, and WSW, which aligns well with the break, producing significant wave energy—particularly in the 1.5–2.5m range (over 30% of the time). Larger sets exceeding 2.5m occur roughly 10% of the month, making it ideal for advanced surfers seeking heavy, barreling waves. Wind conditions are favorable 37% of the time, with lighter offshore or cross-shore winds often coming from N to NE, especially in the 10–20kph range. However, strong onshore winds (S to WSW) can occasionally disrupt conditions, particularly at higher speeds (20–40kph). Expect a mix of epic, clean days and challenging wind-affected sessions, but overall, December is prime for big-wave surfing here.