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.

August at Nazaré tends to offer smaller, more manageable surf compared to the giant winter swells this legendary spot is known for. The average swell height is 1.4m with a decent 9.2s period, indicating relatively clean and organized waves. Swell direction is predominantly NW to WNW, contributing to the majority of waves in the 1-2.5m range (over 60% of occurrences), while bigger sets over 2.5m are rare (just ~0.2%). This suggests consistent, mid-sized surf ideal for advanced surfers looking for powerful but not extreme conditions. Wind is favorable for surfing 34% of the time, with the biggest challenges coming from N/NNW winds, which can create onshore chop at higher speeds (20-50kph range). Mornings often see lighter winds, while afternoons may bring stronger breezes. Overall, August delivers fun, rippable waves with good shape, though not the monstrous peaks Nazaré is famous for—expect more performance-oriented surfing rather than big-wave tow sessions.