Surf forecastSpot statisticsHistorical report

Cabo do Mundo seasonal overview

Best Surf Season (October - March)

The North Atlantic roar to life from October through March, delivering the most consistent and powerful swells to Cabo do Mundo. Average wave heights range from 2.0m to 2.6m with long periods averaging 11-13 seconds, creating pumping to XL conditions. The dominant swell directions are NW to W which align perfectly with the beach's west exposure. Offshore wind frequencies (from NO, ONO, O, OSO, SO) peak at 44-51% during these months, thanks to frequent high-pressure systems over mainland Europe directing clean easterly flows across the coast. Expect the most reliable and biggest surf of the year, fueled by deep extratropical cyclones tracking across the North Atlantic.

Fair Surf Season (April & September)

April and September act as transitional months, bridging the active winter pattern and the quieter summer regime. Average swell heights drop to 1.6-1.9m with periods around 10-11 seconds, producing fun to solid waves on most days. The swell direction remains predominantly NW and WNW, but the frequency and intensity of storms decrease. Offshore wind percentages hover around 35-36%, meaning good conditions are still findable but less consistent than in peak season. These months can deliver excellent waves when a late-season or early-autumn storm aligns with a favorable wind window.

Low Surf Season (May - August)

From May through August, Cabo do Mundo experiences its lowest surf energy. Average wave heights drop to 1.4-1.6m with periods of 8-10 seconds, resulting in predominantly small to fun-sized surf. The swell direction is still mostly NW and NNW, but the shorter periods and weaker swell heights mean the waves are often average and punchy rather than powerful. Offshore wind frequencies fall to just 19-29% as the Azores High strengthens and drives stronger northerly and northwesterly winds, which are onshore for this west-facing beach. While grovelers and funboards will find rideable waves on smaller days, this is the least reliable period for quality surf at Cabo do Mundo, with many days too small or wind-affected.

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Conditions at Cabo do Mundo in December

December: Winter’s Grand Entrance

December delivers a powerful punch, with an average swell height of 2.5m and period of 12.5 seconds. The swell direction is dominated by NW (19.8%) and WNW (18.5%), but there is also a significant presence of W (7.8%) and SW (2.2%) swells that can wrap in nicely. Wave heights frequently exceed 2.5m from WNW and NW, creating epic and heavy conditions. Offshore wind frequency is at 51%, tying with January for the best wind consistency. Easterly winds from E (13.3%) and ENE (7.3%) are common as a strong continental high-pressure system develops, providing clean, glassy conditions. December can see some of the biggest swells of the year, with periods often exceeding 15 seconds and wave faces reaching massive proportions. It's a month for experienced surfers to chase the heaviest waves Cabo do Mundo has to offer, especially when the wind aligns perfectly.

Average Spot conditions at Cabo do Mundo 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 Cabo do Mundo 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 Cabo do Mundo for your next trip in December.

Ground swell

Ground swell by size

Wind conditions

Evaluate the wind and swell alignment at Cabo do Mundo 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 Cabo do Mundo.

Swell with good wind

Swell with good wind by size