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.

July: The Nadir of Conditions

July is the most challenging month for surf at Amoreira. Average swell height stays at 1.4m, but period drops to 8.4s, indicating very weak, short-period swell. The swell is almost exclusively from the NW (57.4%) and NNW (33.1%), but these are mostly windswell with little power. Worst of all, offshore wind frequency is only 7% – the lowest of the year. The wind blows from the NNW 42.4% of the time, followed by N (18.0%) and NW (17.9%), all onshore. This creates constant chop and messy conditions. Rarely, a passing tropical storm or an unusual southerly flow can produce a fun day, but July is best avoided for serious surfing. Small, blown-out waves are the norm.