Molhes de Mampituba Surf Forecast and Surf Report

Alright folks, Rusty here. Let’s have a proper look at what’s on the cards for this stretch of coast.

We’ve got a mixed bag coming up over the next couple of weeks at Molhes de Mampituba (Rio Grande do Sul). The water temp is sitting at 66°, which is a touch warmer than normal for this time of year – nothing extreme, but a nice little bonus for those early morning paddles.

The first real standout window kicks off this Friday, July 24. The morning is looking tidy: a 5ft swell out of the southeast, with a clean, light cross-offshore breeze from the north. Combined swell energy is moderate at 365, so there’s some decent push behind it. The wave period’s a short 8 seconds though, so it’ll be a bit more of a windswell feel – quick, lumpy waves, but definitely rideable and clean. This is your best bet this week.

Saturday morning, July 25, is also worth a mention. Similar size, just a touch smaller at 5ft, but swinging more east-southeast. Another light cross-offshore breeze keeps it clean. The energy is similar at 346. It’s a solid, fun option if Friday doesn’t work out.

Now, Sunday morning, July 26, is the real standout of the early run. Swell bumps up a bit to 5ft from the east, and with a light cross-offshore breeze again, it’ll be clean. The combined energy jumps to 551 – moderate but punchy. The period is only 7 seconds, so it’s still a short, choppy wave, but for a river/jetty setup, it can still offer some fun corners. A little too much size for beginners, but fine for intermediates. Crowds are likely here often, so expect company.

After that, the surf drops right off. From Monday July 27 through to Thursday July 30, it’s small, weak, and generally poor. Most days offer ankle-to-knee high dribble with onshore or cross-shore winds. There’s a gap of about four days where you’re better off leaving the board in the car.

By Friday July 31, we see a pulse of energy return. Morning brings a 4ft swell from the east-northeast, clean with a cross-offshore breeze. The energy is 262 – modest, but a nice glassy session for the patient. Not a classic, but a welcome return.

The real highlight of this entire outlook, though, is Saturday morning, August 1. That’s a full week away, so take it with a little caution, but the signs are strong. We’re looking at a solid 7ft swell from the east-northeast, clean with a light cross-offshore breeze from the west-northwest. Combined energy is strong at 962 – that’s a lot of power. This is big enough that it’s for experienced surfers only; beginners should sit this one out. The period is 8 seconds, so still a bit short, but with that much energy, it’ll produce some heavy, fast wedges off the jetties. This could be a proper session if it all lines up. The afternoon sees the swell drop to 5ft, still clean with offshore winds, so a good backup.

After that, things get messy. Sunday August 2 and Monday August 3 see long-period south groundswells (12-15 seconds) but with cross-shore or cross-onshore winds and rain showers. These longer swells can get a bit straight on the beachier sections, but at a jetty, they might wrap in better. Still, the conditions aren’t ideal. The rest of that week into August 8 stays small or blown out, with only a few brief morning windows for small, clean waves.

So, to sum it up: Best on offer is Saturday morning, August 1 – clean, powerful, and sizeable for the experienced crew. Friday and Sunday of this week are your solid, fun backups. The rest is mostly a write-off.

Stay stoked, stay keen.
Rusty.

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