Itapeva - surf spot statistics

Best Surf Season (May - July)

The heart of the austral autumn and early winter brings the most reliable offshore wind window to Itapeva. With ideal wind percentages climbing to 37-40% and average swell heights hovering around 1.6-1.7m, these months offer the highest probability of clean, lined-up waves. The South Atlantic cranks up its storm activity, sending long-period groundswells from the S to SSE quadrant that wrap nicely into the coast. When the wind aligns from the W, WNW, or NW, the conditions are truly firing and the lineup pulses with punchy, rideable waves.

Fair Surf Season (March - April & August - September)

Shoulder months provide a mixed bag – decent swell potential but with a higher chance of onshore trades spoiling the surface. March and April still see average swell heights of 1.5 and 1.6m and periods rising from 8.8 to 9.1s, but ideal wind drops to 28-31%. August and September boast the largest average swell of the year (1.7-1.8m), yet the offshore wind window narrows to 30 and 20% respectively. You’ll find good days when the synoptic pattern sets up a west-flowing land breeze, but be ready to sift through more bumpy days.

Low Surf Season (October - February)

The austral spring and summer months see the trade wind regime dominate, with persistent NE to E winds blowing onshore across the beach. Ideal wind percentages plummet to 16-29% and the swell energy, though still present (average 1.4-1.7m), is predominantly from the E to ESE – often short-period and bumpy under the fetching breezes. Occasional cold fronts can deliver brief windows of offshore flow and longer-period S/SSW swells, but consistency is low. The best chance for a glassy session comes during early-morning land breezes or strong high-pressure setups. For the committed surfer, patience is key.

June: Peak Winter Groundswell

June continues the excellent run with the highest ideal wind percentage of the year at 40%. Swell heights average 1.6m, but the period remains a healthy 9.7s. S swells still lead (18.9%), with significant contributions from SSE (14.5%) and SE (11.9%). The wind regime is primed for offshore flow from the NW and W – often light in the morning and building through the day. This combination yields crisp, hollow waves in the chest-to-head-high range, with occasional overhead bombs on the best days. The South Atlantic storm track is in full swing, and Itapeva acts as a funnel for the energy. The only downside? Shorter daylight hours and cooler water temps, but a good wetsuit and a dawn session will reward you with some of the best waves of the year.