Balneario Sao Jose Surf Forecast and Surf Report

G'day, Rusty here. Let's be straight with you about Balneario Sao Jose. We've got a bit of a mixed bag coming up over the next couple of weeks. Nothing's really firing on all cylinders for a long stretch, but there are a few windows where you'll want to be in the water. There is a gap of a few days mid-forecast where things get pretty ordinary, so pick your moments.

We start off with a bit of hope. Thursday morning the 10th of September, the waves are a tidy 3ft from the south with a long 12-second period. The energy is moderate (263), but the real winner is the glassy conditions with zero wind. It'll be clean as a whistle. That's a solid little session for the intermediate crew, though be aware the crowds are often here.

Friday morning the 11th is much the same vibe – 3ft south swell at 13 seconds, glassy again with light winds from the east-northeast. Clean, fun waves (275). Afternoons drop off a bit.

Things start to get rough from Saturday the 12th into Sunday the 13th as onshore winds and rain move in. The swell builds a touch but it's messy – stay out of the water.

Now, Monday the 14th of September is where we get a standout. By the afternoon, the swell bumps up to 8ft from the east at 8 seconds. The combined energy is pumping at a strong 1332. It's a lot of push, but with that shorter period it'll be a bit lumpy and challenging. The wind is light and cross-offshore, so it'll be clean, but that size is really only for experienced surfers. Beginners, give this one a miss. Too big.

Tuesday morning the 15th is still decent – 4ft from the east-southeast, clean with a light offshore breeze from the west (310). A nice, manageable size for intermediates to get some runs.

The middle of the week from Wednesday the 16th through to Thursday the 17th sees more onshore wind and rain, with waist to chest high swell but crummy conditions. Not worth the drive.

But then, Friday the 18th of September morning – get excited. A lovely 4ft south groundswell with a very long 13-second period rolls in (722). The wind is glassy from the west-southwest, making it super clean. This is a true standout for the period. That long period will give you proper, powerful lines, and the beach break should handle it well.

After that, the last week of the forecast goes quiet again. There's a small pulse on Monday the 21st of September afternoon – 4ft from the east-southeast with clean offshore winds (276) – but nothing major. The 25th of September Friday morning shows a little more promise with 4ft east swell and glassy conditions, but it's a long way out and the energy is only moderate (271). A last hope, but don't bank on it yet.

So, for the best of it: absolutely hit Thursday morning the 10th and Friday morning the 11th for clean, small waves. But the real standout is Monday the 14th afternoon for the experienced surfers and Friday morning the 18th of September for anyone who loves a long-period, glassy groomer.

Rusty.

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