Matinhos Surf Forecast and Surf Report

Right, pull up a stump and let’s have a look at the 16-day picture for Matinhos. This is a point break that’s very consistent and exposed to the south, so it’s got a solid foundation. The water temp is sitting at 70°F, which is a full 4°F warmer than usual for this time of year—that’s a notable anomaly, feels like a late summer treat. The early part of the week is a bit of a mixed bag, but we’ve got some real promise on the horizon.

The forecast starts with a decent early window on Thursday morning, September 3rd. The swell is 4ft from the SE with a period of 11 seconds, and the combined energy is moderate at 370. With a light N wind that’s cross-offshore, it’s clean. That’s a solid, rippable point break wave. The afternoon sees things go a bit wonky with an onshore breeze, so get out early.

The rest of the week up to the 7th is pretty ordinary. Swell drops off, wind is messy, and the conditions are just poor. We’ve got a few days of rain and choppy, cross-onshore junk. Not worth paddling out for.

Now, here’s a real standout. Monday morning, September 7th, is marginal but the afternoon shapes up with a 6ft SSE swell at 8 seconds, and the energy is jumping to a strong 727. The wind is a light S breeze, cross-onshore with small ripples, so it’s not perfect but the size is getting interesting. That’s a peak in the action.

Then we hit a dry spell. Tuesday the 8th has a small clean morning at 3ft, but it’s weak. The 9th and 10th show glassy mornings with 4ft and 4ft E swells, but the period is short at 8 seconds. It’s surfable and clean, but nothing to write home about.

The real standout is Monday, September 14th. The morning brings a 7ft SSE swell—that’s a solid, powerful wave. With a period of 7 seconds, it’s short-period, but the energy is a strong 521. The wind is a glassy NE breeze, dead calm. It’s going to be clean and punchy. This is the best morning of the forecast. The afternoon sees the swell bump to 8ft from the SSE, with a 9-second period and a massive 1023 energy reading. That’s a lot of water moving, but the wind goes cross-shore, so it might be a bit lumpy. Still, that morning session is the one to circle on your calendar.

The final week is a bit of a fade-out, with a few bright spots. Thursday morning, September 17th, has a tiny 2ft SSE swell, but it’s a long-period groundswell of 13 seconds, and the energy is 238. The wind is cross-offshore from the NNW, so it’s clean. That’s a long-period swell, which will be lovely and lined up on the point. Then Thursday afternoon, the wind goes glassy, and we get a 4ft E swell at 7 seconds. It’s clean and fun.

Friday, September 18th, is a no-go with strong onshore winds and a messy 4ft SE swell, even though it’s a 16-second groundswell. That energy is strong at 663, but the wind just ruins it. That’s a day for the kites, not the paddle.

So, overall, your best bets are the morning of Monday, September 14th for the biggest, cleanest swell, and the morning of Thursday, September 17th for a clean, long-period, smaller wave. The rest of the period is a mix of average and poor. The long-range stuff on the 14th is a bit of a gamble, but it looks promising from here.

Rusty.

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