Surf forecastStatisticsHistorical report

L'Embarcadore seasonal overview

Best Surf Season (October - March)

This is the undisputed peak season for L'Embarcadore. As the North Atlantic roars to life with a relentless procession of deep extratropical cyclones, average swell heights climb from 1.6m in October to over 2.0m in December and January. Wave periods frequently reach 10-14 seconds, delivering powerful, long-period groundswells that, despite their predominantly W to WNW origin, wrap into the south-facing beach with enough energy to produce solid, hollow waves. The catch? Ideal offshore winds (N to NW) are scarce, occurring only 17-26% of the time. However, when a cold front clears the Bay of Biscay and a strong high-pressure ridge builds from the north, the combination of pumping swell and glassy conditions can be absolutely epic. The NAO index often drives the storm track; a negative NAO steers lows further south, increasing the likelihood of optimal S/SW swell angles and offshore winds.

Fair Surf Season (April - May & September)

Transitional months where the Atlantic storm track begins to shift north (spring) or becomes more active again (early autumn). Average swell heights drop to 1.2-1.4m with periods between 9.4-10.3s – rideable but less powerful. The wind patterns become more favorable, with offshore wind percentages rising to 33-37%. April and May see a higher frequency of NE to E winds that are actually cross-shore to slightly offshore for this south-facing spot, creating clean but often small, fun-sized waves. September offers a similar setup with a hint of returning autumn energy. These months are perfect for loggers, fish, and grovelers when the swell lines up.

Low Surf Season (June - August)

Summer is the calmest period. The Azores High dominates, pushing the storm track well north of the Bay of Biscay. Swell heights average just 1.0-1.1m with short periods of 8.5-8.9s, often resulting in weak, mushy waves. While offshore wind conditions are most common (42-47%) thanks to frequent N to NW breezes, the lack of significant swell energy means even the cleanest days produce only small, grovelly waves. A rare southwesterly swell from a distant low can occasionally inject some punch, but consistent surf is not the norm. This is the time for longboard cruising and enjoying the beach – not for charging.

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Conditions at L'Embarcadore in December

December: The Most Unforgiving Month

December ties with January for the highest average swell height at 2.0m and a period of 11.6s. The raw energy is immense, with W (21.1%) and WNW (24.1%) swells packing a punch. However, this is the toughest month for finding clean conditions: ideal offshore winds occur only 17% of the time – the lowest of the year. The wind data shows strong contributions from ENE (10.5%), SW (6.4%), and WSW (8.8%), many of which are onshore or cross-offshore. Yet, when a strong high-pressure system sits over Scandinavia and directs a crisp N to NW airflow down the coast, the result is some of the most epic, heavy, pumping surf of the year. December is for the committed charger who can handle the wait.

Average Spot conditions at L'Embarcadore in December

Swell history for December

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

Wind history for December

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

Swell quality

Analyze the groundswell consistency at L'Embarcadore during December. 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 L'Embarcadore for your next trip in December.

Ground swell

Ground swell by size

Wind conditions

Evaluate the wind and swell alignment at L'Embarcadore for December. 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 L'Embarcadore.

Swell with good wind

Swell with good wind by size