Amoreira - surf spot statistics

Best Surf Season (October - March)

The North Atlantic storm track is in full swing from October through March, delivering a consistent stream of powerful, long-period swell to Amoreira. During these months, average wave heights range from 1.9m in October to a peak of 2.5m in January, with periods often exceeding 12 seconds. The dominant swell directions are NW and WNW, which line up perfectly with the beach's exposure. Crucially, the frequency of favorable offshore winds (from SSW to WSW) is at its annual high, peaking at 36% in December. This combination of swell quality and wind reliability defines the prime season for Amoreira. The Azores High tends to be weaker, allowing deep low-pressure systems to track near Portugal, generating consistent groundswell. A positive NAO pattern further amplifies the storm train, while periods of high pressure can bring glassy, offshore conditions.

Fair Surf Season (April & September)

April and September are transitional months when the winter energy begins to wane or gradually returns. Average swell heights hover around 1.5-1.9m with periods of 10-11 seconds – still enough for good waves on the right days. The wind is less reliable, with ideal offshore conditions occurring only 18-19% of the time. North-northwest winds start to dominate in April (20.8%) and September (25.1%), often creating onshore chop. However, windows of clean, lined-up swell can appear when high-pressure ridges set up, providing fun, rippable waves for those who time it right.

Low Surf Season (May - August)

Summer brings a dramatic shift in the North Atlantic weather patterns. The Azores High strengthens and shifts northward, pushing the storm track away from Portugal. This results in a steady diet of small, short-period swell, with average heights of just 1.4-1.6m and periods under 10 seconds. The swell direction remains predominantly NW (over 50% of the time), but the wind is almost constantly from the north quadrant (N, NNW, NW), blowing directly onshore. Ideal offshore wind conditions drop to a dismal 7-11% in June, July, and August. For the most part, Amoreira becomes a small-wave, windy spot – better suited for longboarders or beginners on calm mornings. The rare exception comes from a passing tropical storm or a late-season cold front, but these are unreliable.

October: The North Atlantic Wakes Up

October sees a sharp jump in surf size, with average swell height reaching 1.9m and period 11.5s. The swell direction spreads more evenly, with NW (40.3%), WNW (20.3%), and W (5.8%) all contributing. This is due to the climatological increase in extratropical cyclones tracking across the Atlantic. Offshore wind frequency rises to 29% – a solid improvement. Winds from the SSW through WSW quadrants (totaling over 14%) become more common, often associated with trailing cold fronts or high-pressure ridging. The result is a month with increasing chances of clean, lined-up, long period swell. October is a prime time for experienced surfers to start planning their trips.