Balneario Sao Jose Surf Forecast and Surf Report

Alright, Rusty here. Let's break down what's happening at Balneario Sao Jose over the next couple of weeks.

We kick off on Thursday the 3rd with a solid SSE groundswell. The morning is clean, with a light cross-offshore breeze and a nice 1.5m of swell at 11 seconds. That's proper groundswell, and the water is 71°, a touch warmer than normal. The combined energy is moderate at 569. That Thursday morning session is the clear standout of the early period – real quality.

Things drop off fast after that. Thursday afternoon gets a cross-on wind, and Friday the 4th is a mixed bag. Friday morning has a glassy 0.9m, but it's small. By Saturday the 5th we're down to knee-high slop, and Sunday the 6th turns nasty with onshore winds and rain chopping up a bumpy 1.7m.

There's a gap of a few days with no real quality. Monday the 7th sees some size come back to 1.8m, but it's onshore and messy. That bigger energy on Monday afternoon hits 1229, but with a lumpy SE wind, it's just not clean.

We get a break on Tuesday the 8th morning: glassy calm, 1.1m of S swell, and clean conditions. But the real standout of the second half of the first week is Wednesday the 9th morning. Glassy conditions, a solid 2.0m of E swell, and the combined energy is 783. That's a proper session if you're comfortable with a bit of size. It's a beach and pier setup, so that 2.0m might be a bit much for beginners, but for intermediates it's game on.

Thursday the 10th holds some clean cross-offshore waves around 1.3m, a nice follow-up. Then we hit another dry spell from Friday the 11th through to Sunday the 13th, with onshore winds, rain, and small, weak surf. Not worth paddling out.

Now for the long-range stuff. Monday the 14th of September looks average with cross-shore chop on 1.7m. But then Tuesday the 15th of September morning is a big one. Glassy, 2.3m of SSE swell, and the combined energy is a strong 1296. That's expert territory, but it's going to be a beauty if you've got the skill. The period is only 8 seconds, so it's a windswell, not a groundswell, but with that glass and that size, it'll be punchy and fun.

Wednesday the 16th of September is clean and smaller, around 1.1m, and Thursday the 17th of September morning is a sleeper: glassy, 0.9m, but with a 13-second S groundswell and 552 energy. That's a long-period gem that will line up nicely, especially for a reef or point. The period is very long, so it might be a bit straight at the beach, but it'll be clean.

The final outlook on Friday the 18th of September goes out with a bang, but not a clean one. A massive SSE groundswell with a 16-second period hits with 1.7m, but the wind is onshore and it's raining. The energy is huge at 1608, but it's a blown-out mess. For a beach/pier setup, that's more kite-surfing territory than paddle surfing.

The best of the best? Thursday the 3rd morning for the solid groundswell and clean conditions, then Wednesday the 9th morning for the glassy 2.0m. If you're an expert, Tuesday the 15th morning is the one to circle on the calendar, but it's a long way out, so keep an eye on it.

Rusty.

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