Supertubos - surf spot statistics

Best Surf Season (October - March)

The North Atlantic delivers its most potent offerings during these months, with the average swell height hovering between 2.5m and 2.8m and average periods well into the 12-13 second range – often producing powerful, long-period groundswells. This is prime time at Supertubos. The dominant swell directions are from the NW and WNW, which wrap nicely into the WSW-facing beach, while the wind is ideal over 40% of the time thanks to frequent northerly and northeasterly offshore flows. Synoptic-scale lows tracking across the North Atlantic generate consecutive swell events, and when a high-pressure ridge builds over Europe, you get pristine offshore winds. This is when the wave really comes to life, offering heavy, barreling rights.

Fair Surf Season (April - May & September)

Transition months see a noticeable drop in average swell height and period. In April, the average swell drops to 2.1m and 11.2s, while September sees similar numbers at 1.7m and 10.5s. The percentage of ideal wind falls to the 30-38% range. While there are still plenty of rideable days, particularly with WNW and NW swells, the consistency and power diminish. The mix of wind directions becomes more variable, with southerly components occasionally spoiling conditions. Good windows exist, but you’ll need to pick your days carefully.

Low Surf Season (June - August)

Summer settles in with average swell heights bottoming out at 1.5-1.6m and periods dropping to 8.6-9.2s. The swell is dominated by short-period windswell from the NNW and NW, often lacking the energy to wrap in cleanly at Supertubos. The wind is ideal only 20-26% of the time, with strong northerly quadrant winds (N, NNW, NW) prevailing – these are onshore or cross-shore for the spot, ruining wave quality. The combination of small, weak swell and unfavourable wind makes this the quietest stretch of the year. Occasional small, fun-sized waves can be found, but expect groveling conditions more often than not.

July: The Bottom of the Barrel

July is the quietest month of the year. Average swell height is 1.5m and period drops to 8.6s. The majority of the swell comes from the NNW (52.4%), with NW at 31.7%. These are short-period, weak windswells with little power. Ideal wind plummets to just 20%. The dominant N (34.6%) and NNW (35.5%) winds blow strong and onshore or cross-shore, completely ruining wave quality. The beach is often flat or choppy. Occasionally, a small WNW windswell (10.1%) combined with a brief easterly wind can produce tiny, groveling waves, but it’s rare. This is a month to save your energy for autumn.