Balneario Sao Jose Surf Forecast and Surf Report

Alright folks, Rusty here. Let’s have a look at what’s in store for the local stretch.

We’re looking at a pretty slow start for Balneario Sao Jose over the next few days. The beginning of the week is pretty grim, with a 4ft SSE swell but it’s short period, at 7 seconds, and the wind is a cross-on from the ESE at 6 mph. The combined swell energy is weak, sitting at 281. The water temp is hovering around 71°, which is about a touch warmer than normal for this time of year. Honestly, the first few days are a write-off.

Tuesday afternoon offers a brief moment of calm – it goes glassy, with a 3ft S swell (9 sec period), but it’s weak energy (197). It’s surfable but nothing to write home about. Wednesday morning stays glassy with a tiny 2ft S swell (133 energy). Still very ordinary.

There’s a gap of poor, choppy conditions from Wednesday afternoon through Thursday with onshore winds and some bigger but messy 4ft S swells. It’s just not worth paddling out.

Here’s the good news.

The first real standout is Friday the 18th of September. We get a clean, glassy morning with a 3ft S swell – but here’s the kicker, the period is 12 seconds. That’s proper groundswell energy, and the combined energy jumps to 476. This is the first genuine chance for some clean lines. It’s a beach/pier setup, so that longer period might make it a little straight, but with glassy conditions it’ll be clean enough. Expect crowds to be likely, as this is a fairly consistent spot.

The second standout, and probably the best on offer, lands on Sunday the 20th of September. The morning brings a clean 6ft ESE swell with a cross-off wind from the NNE at 9 mph. Combined energy is a solid 532. This is proper size, right on the edge of being too much for beginners at 6ft. The direction is a match for the optimum swell direction of SE. It’s clean, with some power behind it. That morning session is the one to aim for.

We also have a promising window on Thursday the 24th of September with a glassy morning and a 5ft S swell (9 seconds) and a strong combined energy of 518. That’s another very good option, particularly if you prefer a slightly smaller, cleaner wave.

The second week tails off quickly. Friday the 25th has a glassy 3ft S swell (300 energy), but it’s smaller. After that, from Saturday the 26th, we drop off into tiny, weak swell (down to 61 energy by Sunday) with no real power. It’s just small, glassy dribble. The forecast then tries to pick back up around Monday the 28th with a 4ft SSE swell, but it’s already looking poor with a cross-on wind.

So, in short: don't bother until Friday the 18th. Saturday the 19th is okay, but Sunday the 20th is your real target. Get on it.

Rusty.

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