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.

November: Spring Squalls

November continues the challenging spring pattern. Ideal wind remains scarce at 16%, with the NE trades blowing 29% of the time and strong E/ENE winds also common. The average swell height is 1.6m with an interval of 8.5s. Swell direction is similar to October: ENE (21.8%) and E (20.4%) lead, while SSE (12.9%) and S (7.8%) provide the better-quality groundswell. The few good days come from passing cold fronts that temporarily shift the wind to the W or NW before the trades reestablish. Wave heights on these windows can push into the pumping 1.5-2.5m range, but you’ll need quick reflexes and a willingness to drop everything for a chance. Patience is key – quality sessions are rare but memorable when they happen.