Praia dos Molhes - surf spot statistics

Best Surf Season (May - July)

The deep southern winter locks in over the South Atlantic, and Praia dos Molhes reaps the rewards. May through July is the sweet spot, with average swell heights sitting in the 1.6–1.7m range and periods stretching to 9.4–9.8 seconds – a solid combination of power and shape. More importantly, offshore winds from the west and southwest blow over 50% of the time, grooming the waves into clean, rippable lines. This is when the seasonal high-pressure systems dominate, setting up prolonged windows of light land breezes and consistent groundswell from the South Atlantic storm track.

Fair Surf Season (April & August - September)

April and August mark the transitions. In April, the swell picks up to 1.6m with a period of 9.1s, and offshore wind frequencies reach 41% – a promising blend, though still a bit rougher around the edges. August sees similar swell heights (1.7m) but a dip in offshore consistency to 42%, while September brings the biggest average swell of the year at 1.8m, but ideal wind plummets to only 28%. You'll find more windy, mixed-up days, but the occasional clean, powerful swell sneaks through, especially when a strong cold front pushes through and leaves behind crisp westerly winds.

Low Surf Season (October - March)

From October through March, the South Atlantic high-pressure ridge settles closer to the coast, generating persistent easterly to northeasterly winds that blow directly onshore at Praia dos Molhes. Ideal offshore wind percentages hover around 20–34%, and the average wave period drops to 8.2–8.6s, indicating shorter, less organized swell. Swell heights still average a respectable 1.4–1.7m, but the onshore flow chops up the surface and closes out many waves. It's not a total write-off – a southward shift of the wind or a distant storm can still deliver the goods – but consistency suffers, and you'll need to pick your windows carefully.

January: Summer Haze and Fickle Windows

January brings the heart of the Brazilian summer, with the South Atlantic high-pressure system anchored offshore. The dominant swell arrives from the ENE through SSE quadrants, with the largest chunk (24.8%) coming from due E and another 20.6% from ENE. Wave heights average 1.4m, mostly falling in the 1–1.5m range, while the period sits at 8.2s – rideable but lacking real punch. The wind story is the real kicker: northeast winds blow nearly 19% of the time, often in the 10–20kph range, creating onshore chop. Ideal offshore wind (from WSW through NW) clocks in at a meager 26% combined, mostly light at 0–10kph. You'll find occasional clean mornings with a light westerly, but expect bumpy afternoons and a lot of small, grovelly surf.