Praia da Cal • Surf Spot Statistics

Best Surf Season (May - August)

Praia da Cal is an east-southeast facing stretch of sand that lives and dies by the South Atlantic trade-wind machine. The best months are May through August, when the South Atlantic High expands and cold fronts push farther north, generating a consistent conveyor of mid-period easterly and southeasterly swell. Average surf sits in the 5-6ft (1.5-1.8m) range with wave periods of 9.2-9.8s, and the offshore wind quadrant (W, WNW, NW, NNW) peaks at 50-54% of the time. That combination produces the cleanest, most lined-up waves of the year. Water temps drop to 16-20°C, and the beach sees fewer trade-wind-compromised days.

Fair Surf Season (April & September)

April and September act as the autumn and spring shoulders. April offers 5-6ft (1.5-1.8m) surf with 44% ideal wind and a building southerly component - a warm-up act. September, on the other hand, is statistically the biggest month with average surf around 6ft (1.8m), but the ideal wind drops to 31% as NE trades strengthen. Swell quality is there, but it's harder to find. These months reward surfers who can read the forecast and strike during cold-front windows.

Low Surf Season (October - March)

October through March is the long southern Brazilian summer/transitional low season. The South Atlantic High weakens or shifts, swell periods shrink to 8.2-8.8s, and the average height drops to 4-5ft (1.2-1.5m), with some bigger pulses still sneaking through. Favorable wind windows fall to 26-39% as the NE trade winds and sea breezes dominate. The water is warm (20-24°C) and the beach is often fun, but consistent quality is hard to come by. Winter cold fronts are the only thing that can reset the balance, briefly bringing clean westerly offshore winds and punchy E/SE swell to Praia da Cal.