Costa Nova - surf spot statistics

Best Surf Season (October - March)

Winter is when Costa Nova truly comes alive. The North Atlantic fires off a relentless succession of extratropical storms, generating consistent powerful, long-period groundswell that pounds this west-facing stretch of the Portuguese coast. Dominant swell directions from WNW, NW, and W funnel straight into the beach, producing average wave heights above 2m—often pushing into the 2-2.5m range. Combined with a favorable offshore wind window (ENE-E-ESE-SE), the ideal surf conditions peak between December and February, where the wind is offshore nearly 50% of the time. Expect pumping, heavy barrels and long-period lines (12-13s) that make for an epic surf session.

Fair Surf Season (April & September)

Shoulder months offer a mixed bag. April sees the tail end of winter swell, with average heights around 2m and periods of 11s, but the wind becomes more fickle—offshore only 30% of the time. September marks the beginning of the autumn transition; the ocean is still warm, and while the average swell drops to 1.6m (10.4s), occasional NW swells can still deliver clean, rippable waves when the wind aligns. These months require a bit more patience and a close eye on the forecast, but the rewards can be solid.

Low Surf Season (May - August)

Summer is the quiet season at Costa Nova. The dominant high-pressure system over the Azores blocks major storm tracks, leading to small, weak swell (averages 1.4-1.7m, periods 8.6-9.9s). Most of the energy comes from the NW and NNW, which are onshore directions for this beach, resulting in bumpy, choppy conditions. Offshore wind (ENE-E-ESE-SE) is scarce, dropping to just 9-14% frequency in July and August. Occasional pulses from distant storms can bring fun-sized waves, but overall, expect groveling conditions and a lot of flat days. Best to save your energy for the winter months.

October: Winter Returns in Full Force

The North Atlantic comes back to life in October. Average swell height jumps to 2.0m and period to 11.3s. Swell directions shift to a more favorable mix: NW (31.3%) still leads, but WNW (22.2%) and W (8.6%) gain ground. Offshore wind is back to 40%—a significant improvement over summer. The E, SE, and ESE winds provide clean, groomed conditions for the powerful long-period groundswell. Expect frequent overhead waves in the 1.5-2.5m range, with plenty of pumping, firing days. October is a primo month—start waxing your step-up.