Surf forecastStatisticsHistorical report

Amoreira seasonal overview

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.

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Conditions at Amoreira in January

January: The Roar of the North Atlantic

January delivers the most powerful and consistent surf of the year. Average swell height hits 2.5m with a long period of 13.1s, indicative of deep low-pressure systems churning across the Atlantic. The swell direction is heavily weighted toward NW (26.3%) and WNW (18.5%), providing excellent exposure for Amoreira's WNW-facing beach. Wind conditions are promising: offshore flows from the SSW to WSW occur 34% of the time, often when a strong Azores High builds in from the southwest. When these align, expect clean, heavy, long-period groundswells that can produce thick barrels on the better sandbars. Northerly winds still prevail at times (13.8% from N), so a close eye on the forecast is key to scoring the best sessions.

Average Spot conditions at Amoreira in January

Swell history for January

0 - 0.5
0.5 - 1
1 - 1.5
1.5 - 2.0
2.0 - 2.5
> 2.5 m

Wind history for January

0 - 10
10 - 20
20 - 30
30 - 40
40 - 50
> 50 km/h

Swell quality

Analyze the groundswell consistency at Amoreira during January. Based on historical data, there is a % probability of groundswell occurring this month. The chart below provides a detailed breakdown of the average wave height distribution, offering deep insights into the swell quality and surf potential you can expect at Amoreira for your next trip in January.

Ground swell

Ground swell by size

Wind conditions

Evaluate the wind and swell alignment at Amoreira for January. Our analysis shows that favorable offshore or side-shore winds coincide with surfable swell approximately % of the time. The accompanying graph illustrates the average size distribution of waves during these optimal wind windows at Amoreira.

Swell with good wind

Swell with good wind by size