Surf forecastSpot statisticsHistorical report

Cabedelo de Viana seasonal overview

Cabedelo de Viana in Portugal is a spot that thrives on consistent ground swells, particularly during the winter months, making it a reliable destination for surfers seeking powerful and clean waves. The best conditions are typically found from November to February, when ground swell dominates (77–92% of the time), and the mean swell size ranges from 2.1 to 2.6 meters, offering solid overhead waves. Wind conditions are less favorable during these months, with only 35–38% of days having good offshore or cross-offshore winds, but the strong, clean swells compensate for the occasional onshore winds. March and December also provide excellent swell consistency, though wave heights begin to taper slightly in March. From April onward, the swell mix shifts, with wind swells becoming more prevalent, and by summer (June–August), ground swells drop significantly (18–28%), resulting in smaller, less consistent waves (1.2–1.3 meters). September and October mark a transition back to better surf, with ground swells increasing again (48–65%) and wind conditions improving slightly (40–41% good winds). While the winter months deliver the most powerful and reliable waves, intermediate surfers may prefer the shoulder seasons (September–October and March–April) for a balance of decent swell size and slightly better wind odds. Overall, Cabedelo de Viana is a winter-centric spot, best suited for experienced surfers who can handle larger swells and variable winds.

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Conditions at Cabedelo de Viana in December

December at Cabedelo de Viana offers solid surf conditions with an average swell height of 2.4m and a healthy 12.6s period, suggesting well-formed, powerful waves. The dominant swell direction is from the WNW and NW, contributing to the majority of surfable waves, particularly in the 1.5–2.5m range, with a notable presence of larger sets (over 2.5m). The WSW and SW swells also play a role, though less frequently, providing some variety in the lineup. Wind conditions are a mixed bag, with ideal offshore or light cross-shore winds (under 20kph) occurring about 36% of the time, mostly from the NNE to ENE. However, stronger winds (20–40kph) from the S to W quadrants can occasionally create choppy conditions. Overall, December delivers consistent, powerful surf, best suited for experienced surfers, with the potential for excellent sessions when winds align—especially during periods of NW swell and favorable NE winds. Keep an eye on wind forecasts to maximize the best days.

Average Spot conditions at Cabedelo de Viana 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 Cabedelo de Viana 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 Cabedelo de Viana for your next trip in December.

Ground swell

Ground swell by size

Wind conditions

Evaluate the wind and swell alignment at Cabedelo de Viana 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 Cabedelo de Viana.

Swell with good wind

Swell with good wind by size