Prainha Surf Forecast and Surf Report

Alright, this is Rusty comin' at ya from right here. Let’s have a good look at what’s on the table.

Right off the bat, we’ve got Prainha as our only option on the board. This spot is for the experienced crew—advanced only, and it breaks very consistently. The water’s sitting at 68°, which is a touch warmer than normal for this time of year, so you might get away with a thinner suit if you’ve got one.

The week kicks off on Tuesday morning, August 25th. It’s small, with a 2ft swell wrapping in from the southeast at 13 seconds, and the wind is glassy. It’s rideable, but nothing to write home about—just very ordinary conditions with weak energy (141). Tuesday afternoon goes flat calm, but still tiny.

Now, Wednesday morning, August 26th, is where things start to look good. The swell bumps up to 3ft from the southeast with a long 16-second period—proper groundswell energy—and the wind is offshore from the WSW at just 3 mph. That’s clean. The combined energy jumps to 348 (moderate), and the report says “expect good surf conditions.” This is the standout of the first few days. Prainha is an exposed spot, so that long-period SE swell will wrap in nicely.

Wednesday afternoon gets ruined by onshore wind, so morning is the move.

Thursday morning, August 27th, looks solid again: 3ft, SE, 14-second period, glassy with a light offshore. Clean and glassy. Good surf conditions again with 326 combined energy.

The weekend and into next week is a mixed bag. Friday morning, August 28th sees a shift—swell comes more east at 4ft but the period drops to just 7 seconds. That’s short-period windswell, weak energy (174). Glassy in the morning but choppy by afternoon. Saturday and Sunday follow a similar pattern: small, knee-to-waist high east swell, mostly weak energy, and the wind is variable. Nothing to get excited about.

Monday, August 31st has a bit of hope: 3ft, east, 9 seconds, with glassy conditions in the afternoon under light rain. Still very ordinary, but at least it’s clean.

The first week of September brings a bit of spice. Wednesday morning, September 2nd has 4ft southeast swell at 9 seconds, light cross-offshore wind, and good surf conditions with 224 energy. That’s a decent window.

But the real standout of the whole outlook? Sunday, September 6th. Both morning and afternoon are glassy—calm wind—with a 4ft to 5ft east swell at 9 seconds. That’s solid waist-to-chest high, clean, with combined energy of 264 in the morning and 320 in the afternoon. “Expect good surf conditions” for both sessions. That is the best looking day on the charts. After that, Monday morning, September 7th, still has clean 4ft waves with glassy conditions, but the onshore kicks in by afternoon.

Overall, the best windows are Wednesday August 26th morning, Thursday August 27th morning, Wednesday September 2nd morning, and then the standout Sunday September 6th all day and Monday September 7th morning. After that, the second week drops off into smaller, weaker, and more onshore conditions.

Crowds at Prainha can show up sometimes, so if you’re heading out on those good glassy mornings, you might have a few others in the water, but it’s worth it for the clean lines.

This is Rusty, signing off.

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