Balneario Sao Jose Surf Forecast and Surf Report

Alright folks, Rusty here. Let’s get into it. We’re looking at a stretch for Balneario Sao Jose, and it’s a bit of a slow burn. There’s decent, clean surf to start the weekend, but the real standout is a big pulse that rolls in way down the line, more than a week from now. That’s the one you want to circle on the calendar.

First up, the Friday morning (17th). This is where it’s at for the near term. The swell is a modest 2.6ft from the SE with a period of 10 seconds, producing moderate wave energy (248). The wind is a light offshore from the NNW, keeping things clean. It’s a good, solid session for an intermediate. The water temp is about average for the time of year, no drama there. Crowds are often an issue here, so expect some company.

We move into Saturday and Sunday (18th & 19th), the swell holds around 3.3ft from the E, but the period drops to 8-9 seconds, so it’s a bit weaker and more disorganized. The wind is still light and cross-offshore, so it’s surfable, but just ordinary. The energy drops into the low 100s and 90s through Monday and Tuesday (20th & 21st), with 2.6ft waves. Tuesday afternoon actually gets glassy with a light W wind, but the swell is tiny.

Wednesday and Thursday (22nd & 23rd) are a write-off Wednesday with poor conditions, then Thursday cleans up with a glassy morning and a weak 2.3ft swell from the S. It’s still very ordinary.

Then we hit a bit of a rough patch. Friday the 24th through Sunday the 27th morning is messy with cross-onshore winds and poor to marginal conditions. The swell tries to build, but the wind is all wrong.

Here’s the standout. Skip everything else and lock in on the morning of Wednesday, July 30th. This is for the experienced crew only. We’ve got a solid 7.9ft swell from the SSE, with a very long period of 13 seconds. The combined energy is massive at 2311. The wind is glassy off the WNW. This is a serious groundswell, and on a beach/pier set-up like this, that long period might make it a bit walled and straight, but for the experts, the power and clean conditions will be mental. It’s a “promising but less certain” call this far out, but the potential is huge.

The swell stays big into Thursday (31st) and Friday (1st August) but the wind turns onshore, so it gets lumpy. The morning of July 31st holds a 6.9ft swell with a 15-second period (even longer!) but with a cross-shore wind, it's a challenge for the brave.

For the rest of the run, the 3.3ft to 4.3ft stuff is just ordinary. The big energy is all in that late July spike.

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