Molhes de Mampituba Surf Forecast and Surf Report

G’day, I’m Rusty. Let’s break down what’s happening at Molhes de Mampituba over the next couple of weeks. This is a river/jetty setup that’s fairly consistent, exposed to swell, and it’s best with offshore winds from the NW. The water’s sitting at 62°F right now, which is about 0.9°F cooler than normal for this time of year – nothing unusual, just a touch crisp.

We’ve got a bit of a slow start, but things kick off this Sunday morning, August 16, with a solid 8ft swell from the ENE, period around 8 seconds, and light cross-offshore winds from the NNE. The combined energy is strong at 1245, so there’s plenty of grunt in the water. The surf is clean and excellent for experienced surfers – that’s a standout morning. Come Sunday afternoon, the wind picks up from the NE at 16 mph, making conditions cross and poor, so get out early.

Monday morning, August 17, is another good one: 7ft ENE swell, light cross-offshore breeze from the NNE, and clean surf with energy still high at 1070. Again, this is for the experienced crew. Monday afternoon goes onshore with a light SSE wind, and conditions become marginal.

From Tuesday, August 18, through to Friday, August 21, the surf drops off significantly. Swell heights hover around 2ft to 4ft, periods are short, and the wind is mostly cross or cross-onshore. The energy is weak (68 to 340), and conditions are poor for surfing. There’s a gap of several days with no real recommendations.

Saturday, August 22, brings a change: a 7ft southerly swell with a 10-second period, but the wind is cross from the SW at 12 mph, and the energy is strong at 1363. Conditions are marginal, not great for paddling.

Now, the real standout window is the morning of Sunday, August 23. We’ve got an 8ft swell from the S, period 10 seconds, and glassy light cross-offshore winds from the W at just 3 mph. The combined energy is massive at 2430, and the surf is clean and excellent for experienced surfers. This is the best session on offer. Sunday afternoon, the swell jumps to 10ft from the S with an 11-second period, but the wind is cross from the SW at 16 mph, and the energy is huge at 3122 – it’s predicted to be too big for this break, so only experts should even consider it.

The following week from Monday, August 24, to Thursday, August 27, has some decent morning windows. Monday morning, August 24, has a 5ft S swell with a long 11-second period, light cross-offshore winds from the WSW, and clean conditions (energy 574). Tuesday morning, August 25, offers 4ft SSE swell, 10-second period, light offshore NNE winds, and clean surf (energy 390). Wednesday morning, August 26, brings 4ft SSE swell with a very long 12-second period, light offshore NNE winds, and clean conditions (energy 471). Thursday morning, August 27, has a 6ft ENE swell, 7-second period, light offshore NNE winds, and clean surf (energy 612). These are all good, but the wind is light and the surf is clean, so they’re worth a paddle.

After that, from Friday, August 28, through to Monday, August 31, the surf drops back to small, weak, and messy. Swell heights are 3ft to 5ft, periods are short, and the wind is often cross or onshore. The energy is low (156 to 707), and conditions are generally poor. Monday morning, August 31, has a 5ft E swell with a short 6-second period, cross-offshore NNE winds, and clean surf, but it’s marginal.

So, if you’re an experienced surfer, lock in the mornings of Sunday, August 16, Monday, August 17, and especially Sunday, August 23. That Sunday morning is the pick of the lot – clean, strong, and glassy. For the rest, it’s a waiting game, but there’s some decent early sessions in the second week too.

Rusty.

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