Itapiruba • Statistics for January

January: Midsummer Lull and Trade-Wind Peaks

Midsummer in southern Brazil is all about the trade wind regime. The South Atlantic High sits strong, keeping the storm track far away and driving a persistent stream of NE-ENE winds toward the coast. The wave climate reflects this: average surf height rests at 4-5ft (1.4m) and the average period is only 8.3s, producing punchy, rideable but mostly short-period waves. Swell from E (20.8%), ESE (20.3%), ENE (18.3%) and SE (14.9%) dominates the table, meaning the beach is almost always seeing east-quadrant swell wrapping in from the open ocean. However, those same directions are also the ones that mess up the surface when the wind picks up; NNE and NE winds combine for 39.9% of the wind observations, creating side-shore and often textured conditions. Still, the ideal-window statistic sits at 39%, so there are workable windows, especially on lighter mornings before the seabreeze kicks in.

With summer showers and 5.57mm/day of rain, January is hot, humid and occasionally stormy. Air temperatures average 24.9°C and the water sits warm at 25.2°C, so boardshorts or a 2mm spring suit are more than enough. If a cold front can sneak in a jolt of SSW-S swell, the heavier 5-6.5ft (1.5-2m) peaks become the standout sessions of the month.