Balneario Sao Jose Surf Forecast and Surf Report

Alright folks, it’s Rusty here with a look at the next couple of weeks down at Balneario Sao Jose. This is a beach and pier setup, exposed to the south swell, and right now we’re looking at a bit of a mixed bag. The water is sitting at 69°, which is pretty much what you’d expect for this time of year, no wild surprises there.

We’ve got a little gap to start, but the first real window kicks off Saturday morning, August 8th. The swell is coming in at 5ft from the south, with a period of 10 seconds, and combined energy reading 396 (moderate). The wind is glassy from the ENE at just 3 mph, so it’s going to be clean. This is a solid, fun-sized option for intermediates, but beginners will find it a bit of a push.

The best of the early run looks like Thursday, August 13th. The morning is glassy, with 4ft of SSE swell (12-second period, 478 energy), but the real standout is the afternoon session: 3ft from the south, 12-second period, and a combined energy of 519 (moderate). It’s glassy, clean, and the energy is sweet. This is a top pick for a quiet paddle.

Friday morning, August 14th is another cracker. Glassy conditions, 4ft of SSE swell (13-second period, 708 energy). That’s a longer period, so it’ll have some punch and shape, but it’s still manageable. The crowd factor is "often" here, so don’t expect to be alone.

Then we’ve got a bit of a lull. Saturday morning, August 15th is glassy with 4ft of SSE swell (13-second, 514 energy), so that’s a nice end to the week, but the wind turns onshore later.

The next big moment is Monday, August 17th. The morning has 6ft of east swell, but it’s a short-period 6-second windswell (423 energy) – glassy, but it’ll be a bit lumpy. The afternoon jumps to 7ft of east swell (7 seconds, 514 energy) with a cross-shore wind. That’s getting big for the average surfer.

Now, Tuesday morning, August 18th is a big one. We’ve got 10ft of east swell, 9-second period, and a massive combined energy of 2051 (very strong). The wind is offshore from the NNW at 6 mph, so it’s clean. But hear me now – that’s too big for this break. It’s expert-only territory, and even then, it’s pushing the limits. The setup is better for a kite surfer than a paddle surfer at this size.

The last real highlight is Wednesday morning, August 19th. Glassy, 6ft of ESE swell (9-second, 753 energy). That’s a solid, clean wave with moderate energy, and it’s a good call for a strong intermediate.

After that, the swell drops off. There’s some small, clean stuff on Thursday afternoon, August 20th (3ft, SE, 10-second, 200 energy) and Friday afternoon, August 21st (3ft, SE, 9-second, 201 energy), but it’s fading. The final week is mostly small, weak, and crummy. The last decent looking glassy morning is Sunday, August 23rd with 3ft of SE swell (11-second, 212 energy), but it’s a shadow of what we had.

If you’re picking a winner, I’d say Thursday afternoon, August 13th or Friday morning, August 14th – those are the cleanest, user-friendly, and most reliable waves in the whole run.

Rusty.

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