Surf forecastStatisticsHistorical report

Foz do Lizandro seasonal overview

Best Surf Season (October - March)

The North Atlantic fires on all cylinders from October through March, delivering a non-stop conveyor belt of powerful, long-period groundswell. Foz do Lizandro's west-northwest orientation is perfectly positioned to capture the dominant WNW to NW swell trains that march across the Atlantic. Average wave heights range from 2.0m to 2.6m, with periods consistently in the 11-13 second range – right in the powerful, long period sweet spot. Ideal offshore winds from the western quadrant (WNW through SW) are most frequent during these months, with ideal wind percentages climbing to 20-25%. This is prime time for quality surf at Lizandro, with plenty of punchy, hollow waves on offer.

Fair Surf Season (April & September)

April and September represent transitional months. Swell activity remains respectable with averages around 2.0m and periods around 11 seconds. However, the consistency drops and the percentage of ideal offshore wind decreases to 13% in April and 12% in September. Longer breaks between swell events, combined with a more fickle wind regime, make these months less reliable than the peak season. Still, with a keen eye on the charts, you can score clean, fun-sized waves under favourable conditions.

Low Surf Season (May - August)

From May through August, the North Atlantic storm track retreats northward, causing a significant drop in swell energy. Average wave heights fall to between 1.4m and 1.7m, and periods shorten to the 8-10 second range. The dominant swell direction shifts to NNW and NW, which are still okay, but the wind becomes the main challenge. The prevailing northerly Nortada wind regime dominates, with north winds blowing at moderate to fresh speeds 30-40% of the time. These winds are cross-shore to slightly onshore at Lizandro, leading to bumpy, choppy surface conditions. Ideal offshore wind percentages plummet to 3-9% in these months. Combined with smaller swell and weaker periods, the overall surf quality is subpar. However, occasional early-morning offshore easterlies or a fleeting summer groundswell can still produce the odd session.

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Conditions at Foz do Lizandro in May

May: Summer Lull Begins

May marks the significant transition to the summer lull. Average swell height drops to 1.7m and period to 9.9 seconds – now in the 'average, punchy' range. Swell direction is heavily dominated by NNW (31.5%) and NW (30.5%), with WNW still contributing 17.4%. Ideal wind is just 9% of the time. The wind pattern is strongly influenced by the thermal low over the Iberian Peninsula, driving persistent north to north-northwesterly winds (N 29.8%, NNW 19.4%). These winds are predominantly cross-onshore at Lizandro, often exceeding 20-30kph and creating messy, choppy conditions. Occasional days with light offshore easterly winds (from the east) can provide clean, fun-sized waves, but the window is small and inconsistent. May is a month for the dedicated surfer who is willing to work around the wind.

Average Spot conditions at Foz do Lizandro in May

Swell history for May

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

Wind history for May

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

Swell quality

Analyze the groundswell consistency at Foz do Lizandro during May. 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 Foz do Lizandro for your next trip in May.

Ground swell

Ground swell by size

Wind conditions

Evaluate the wind and swell alignment at Foz do Lizandro for May. 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 Foz do Lizandro.

Swell with good wind

Swell with good wind by size