Prainha Surf Forecast and Surf Report

Alright, Rusty here. Let’s have a proper look at the charts for our local stretch, yeah?

Right now, we’ve got a bit of a flat, quiet start to the run. Tuesday afternoon kicks things off, but honestly, there’s nothing to get excited about. The swell’s tiny at 3 ft from the east with a short 8-second period, light breeze onshore, and the water’s sitting at 66°F, which is pretty much bang on average for this time of year. It’s a no-go.

Wednesday morning shows up with surfable waves but very ordinary conditions. The swell height is still small, around 3 ft from the east, and while there’s a touch more energy (105 in the combined energy), the cross-off wind from the south doesn't make it a standout. Through Wednesday and Thursday, the conditions stay poor – the wind picks up, the swell drops, and it’s just not worth paddling out.

Now, Friday morning the 24th – that’s where we start to see a real shift. The swell bumps up to 4 ft from the southeast with a longer 10-second period, and the combined energy jumps to 217, which is solid moderate energy. The real kicker? Glassy conditions. That’s dead calm wind from the east at just 3 mph. This is the real highlight of the first week. Prainha is going to be clean, with proper little lines rolling in. The southeast swell direction lines up nicely with the optimum here, and with the water just about average temp-wise, you’d be mad not to paddle out Friday morning. Crowds can show up sometimes, but with conditions this clean, it’s worth the gamble.

After Friday, the weekend is average at best. Saturday morning holds a 3 ft swell from the southeast, clean with a light cross-off breeze, but it’s nothing to write home about. The rest of the week tails off into weaker, choppier conditions, and by the end of July into early August, the swell dips right down. There’s a long quiet spell from about the 28th through the 31st – barely any energy, very small waves, and mostly onshore or cross-on winds.

Now, looking into the first days of August, there’s something promising lurking. On the morning of Sunday the 2nd of August, we see a 4 ft easterly swell with glassy conditions and the combined energy reading a strong 280. That’s punchy for the size, and the glassy wind from the northwest makes it very clean. It’s a good call for an early session. The morning of Monday the 3rd is more marginal, but there’s still some energy hanging in there.

But the real long-range standout? Tuesday the 4th of August into Wednesday the 5th. The combined energy numbers are huge – 496 and then 546 through Tuesday, driven by a very long 14-second period groundswell from the southeast. The swell height reading is only around 2 ft to 3 ft, but with that long period, it’ll have plenty of push. That said, beach breaks can get a bit straight and fat with such a long period – Prainha’s setup should handle it okay, but it might be more interesting for the reefs or points if there were any. The wind is iffy – light rain and cross-onshore – which is a shame, because the energy is there. If the wind behaves, those Tuesday and Wednesday sessions could be serious. But as this is more than a week out, we call it promising but not locked in.

Overall, the best bet is Friday morning the 24th of July – clean, glassy, southeast swell with decent energy. For the patient ones, keep an eye on the 2nd of August morning, and the 4th if the wind plays ball. There’s a long quiet stretch from the 28th through the 31st with very little to surf, so don’t expect much in that window.

Keep your wax on,
Rusty.

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