Molhes de Mampituba Surf Forecast and Surf Report

Alright, Rusty here, and I’ve been staring at the charts for Molhes de Mampituba. This river mouth setup is the only game in town for the next couple of weeks, so let’s break it down.

The good news is we’ve got a solid window of swell lined up, but it’s a slow burn before things get really good. The water is sitting at 66.2°F right now, which is a touch warmer than normal for this time of year, so you can leave the winter steamer at home.

We kick off Friday the 7th, but it’s a write-off. The wind is howling out of the southwest at 12 mph, creating a cross-chop on that 6.6ft SSW swell. The energy is moderate (770), but it's messy.

Saturday the 8th is where the fun starts. Saturday morning swings to a nice north wind at 9 mph, giving us a clean cross-off breeze. The swell is a solid 5.6ft from the SSE, and the period jumps to 14 seconds – that’s proper groundswell energy. The combined energy is strong (1125). This is a standout window for experienced surfers. Then Saturday afternoon gets even better: the wind goes glassy, WSW at just 3 mph. The swell drops a touch to 5.2ft, but the period is still 13 seconds. It’s going to be smooth and clean. This is the best on offer for the near term.

Sunday the 9th is a step back. The wind swings back to the southwest at 12 mph, creating a cross-chop, and the swell drops to a short 8-second period. The energy is moderate (849), but it’s not worth paddling out in that wind.

Monday the 10th is still a bit messy. The swell is 6.9ft from the south with a 12-second period, giving us strong energy (2100) on Monday morning, but the southwest wind is cross-shore. It’s not clean, and the size is getting up there for the less experienced.

Tuesday the 11th through Wednesday the 12th is a nice run of clean conditions. The wind goes light out of the north, cross-off, and the swell sits around 5.2ft to 5.9ft from the SSE. The period holds at 12 seconds. The energy is moderate (900-758). It’s not pumping, but it’s clean and fun. A good option for a few waves without the crowd, though this spot can get busy.

Thursday the 13th is another standout. The swell is 5.2ft from the SSE, but the period jumps to 14 seconds in the morning, giving a very strong energy reading of 1811. The wind is light from the north, keeping it clean. This is an excellent window for experienced surfers. The afternoon sees the period hit 15 seconds, but the wind swings to the northeast, creating a light cross-shore ripple.

The weekend of the 15th and 16th drops off. The swell fades to 3.9ft to 4.3ft, the period drops to 10 seconds or less, and the wind is onshore or cross-shore. The energy drops to weak levels (376-163). Not worth a paddle.

Monday the 17th sees a new pulse of swell, but it’s short period (7-8 seconds) and sizeable (7.2ft to 8.2ft) from the east. The energy is moderate (583-770), but that short period, east swell on a river mouth is going to be a bumpy, lumpy mess. This setup looks more interesting for kite surfing than paddle surfing.

The big story is Thursday the 20th. Swell is predicted to be 13.1ft from the south with an 11-second period. The combined energy is massive (6152). The wind is offshore from the NNW at just 3 mph in the morning. This is a massive, clean groundswell, but it is too big for this break. Unless you are an expert and know this river mouth intimately, it’s a day to watch from the beach.

Friday the 21st is the real payoff. The swell drops to a more manageable 7.5ft from the SE, still with an 11-second period and strong energy (1259). The wind is offshore from the NNE at just 3 mph. This is an excellent session for experienced surfers. The southeast direction is close to the optimum for this spot, so the river jetties should focus it nicely.

The 22nd tails off with a small, clean 4.3ft SSE swell and glassy wind in the afternoon, but it’s a weak end to the run.

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