Foz - surf spot statistics

Foz, Spain, offers consistent surf conditions year-round, but the best months for surfers seeking quality waves and favorable winds are from October through March. During this period, ground swells dominate, providing powerful and well-organized waves, with mean swell sizes ranging from 1.7m in October to 2.3m in January. The highest likelihood of clean conditions occurs in October with 30% good wind conditions, though wind quality remains relatively low overall, rarely exceeding 30%. Winter months like December and January deliver the largest waves (2.1m–2.3m) but also come with the worst wind conditions (73–76% unfavorable). Spring and summer (April–September) see a shift toward wind swells, reducing wave quality, with smaller sizes (1.1m–1.6m) and choppier conditions due to persistent onshore winds. September and November stand out as transition months, offering a balance of decent swell size and slightly improved winds. For advanced surfers prioritizing size and consistency, winter is ideal despite the wind challenges, while intermediates might prefer late autumn or early spring when swells are still respectable (1.7m–2.0m) and winds are marginally better. Avoid summer if seeking powerful waves, as wind swells and smaller sizes prevail.

December in Foz, Spain, offers solid surf conditions with an average swell height of 2.1m and a strong 12.1s period, ensuring powerful, well-spaced waves. The dominant swell direction is from the NNW, delivering the most consistent and sizable waves (14.91% of swells in the 1-1.5m range and 11.99% in the 1.5-2m range), followed by NW and WNW swells providing additional energy. Larger waves (over 2.5m) are less frequent but occur occasionally (0.78% NNW, 0.49% NW). Wind conditions are critical, with only 26% of days offering ideal offshore or light cross-shore winds. The ENE and E winds (strongest at 20-30kph) are common and can create choppy conditions, while SW/WSW winds (frequent at 20-40kph) may disrupt wave quality. For surfers, the best days are when NW/NNW swells coincide with light N/NE winds—expect powerful, clean waves, particularly on mid-to-high tide. However, wind direction and strength are the main limiting factors, so monitoring forecasts is key for scoring optimal sessions.