Praia do CDS - surf spot statistics

Best Surf Season (October - April)

The winter months deliver the most consistent swell energy to Praia do CDS, courtesy of a relentless parade of North Atlantic low-pressure systems. Average wave heights consistently exceed 1.5m, with periods regularly pushing into the 12-13 second range — powerful, long-period groundswells that wrap into the beach. The east-northeast-facing orientation means the best swell aligns from the west-northwest to northwest, while a negative NAO index often locks in the ideal offshore wind pattern from the southwest to west. However, during these months, onshore winds from the east-northeast are also common, cutting down the ideal wind window to about 23-35% of the time. Still, when the stars align, this is when Praia do CDS truly fires with pumping, pitching waves.

Fair Surf Season (May & September)

The shoulder months offer a trade-off: smaller, but cleaner surf. Average swell heights drop to around 1.2m in May and 1.1m in September, with periods settling into the 10-10.5-second range — fun-sized, rippable waves on the better days. The likelihood of offshore winds (from the southwest through west) increases to 33-35%, meaning more glassy mornings. However, the swell becomes more windswell-dominated, and the long-period groundswells that make winter epic are less frequent. These months are perfect for groveling on small craft if you time the swell windows.

Low Surf Season (June - August)

Summer is a tough time for consistent surf at Praia do CDS. The North Atlantic storm track retreats northward, and average swell heights hover around 1.0-1.1m with periods under 9.5 seconds — primarily short-period, local windswell. The predominant wind pattern becomes the northerly ‘Nortada’ trade wind, which blows strong and steady (often 20-30+ kph) from the north to northwest. While these winds are not directly onshore (the beach faces ENE), they create a choppy, messy sea state when combined with the weak, short-period swell. Ideal wind days from the west-southwest are rare, dropping to around 26-27% of the time. Only the occasional summer groundswell from a southern hemisphere storm or a rare tropical system can salvage a session, but these are few and far between.

August: Marginal Summer Surf

August is similar to July, with average swell height 1.0m and period 9.1s. The swell remains strongly NW-dominated (66%), with minor WNW (24%) contributions. The wind pattern is equally relentless: N (24%) and NNW (42%) combine for the majority, blowing 10-30 kph. Ideal wind (SW through W) occurs 27% of the time, but those days are often light and infrequent. The Nortada wind is in full swing, and the consistency of summer groundswells is low. However, there is a slight uptick in the average period compared to July (9.1s vs 8.7s), hinting at occasional more organized swell trains. This makes August marginally better than July for small-wave performance surfing. Look for subtropical lows or old hurricane swell — they can sneak in a pulse of longer-period energy that breaks cleanly on the east-northeast sandbar.