Barron Rivermouth Surf Forecast and Surf Report

Alright, let’s get into it, crew. Rusty here.

We’re lookin’ at a 16-day window for Barron Rivermouth, and I gotta be straight with you—it’s a bit of a slow start. The first real surf worth paddling out for doesn’t show up until Thursday the 10th, so we’ve got a gap of about five days with no real recommendations. After that, there’s a long stretch of marginal stuff before a promising little window later in the second week.

The standout moment is shaping up for Saturday morning, September 19th. That’s the one to circle on the calendar. Early on that day, we’ve got a 3ft SW swell, with a period of 18 seconds—that’s a proper groundswell, long and clean. The wind is glassy, dead calm, so the surface will be like a mirror. The water temps are sitting at 89°F with a big anomaly of 4°F, so that’s much warmer than normal for this time of year—feels like a tropical bath. The combined energy is moderate at 541. This is a point/river setup, so that long-period swell will wrap in nicely, giving you some well-shaped lines. It’s a fairly consistent break, so you won’t be waiting forever, but crowds are possible here, so get in early.

Now, running through the week. The first real chance comes Thursday morning, September 10th. We’ve got a 3ft SW swell, 16-second period, and light offshore wind from the east. That’s clean, clean surf. The energy is moderate at 484. Thursday afternoon stays clean too with a light cross-offshore breeze. It’s not huge, but it’s your best bet before the weekend.

Friday the 11th starts with glassy conditions in the morning, 3ft SW swell, 15 seconds—smooth and inviting, but the energy has dropped to 287. It’s a little on the small side, but still fun for a log or a mid-length.

From there, the surf fades through the next few days. Saturday the 12th through to Tuesday the 16th is mostly small, choppy, and cross-onshore. Swell drops to 2ft to 2ft, with periods going all over the place. Not worth rushing out for.

Then, on Thursday the 17th, we get a spike in period—2ft SW swell, but with a 22-second period in the morning and 21 seconds in the afternoon. That’s very long period groundswell. The energy is moderate at 443 and 391. But the size is tiny, so it’s gonna be a bit of a tease—maybe a few nice lines on the sets, but don’t expect a proper wave.

Friday the 18th is a bit better with 3ft SW swell, 20-second period, light cross-shore wind. Energy is moderate at 578. Still not a standout, but it’s clean enough for a morning session.

And then Saturday the 19th morning—that’s the real gem. 3ft SW, 18 seconds, glassy, clean. That’s the one to chase. The afternoon gets a bit bumpy with cross-onshore wind, so make the most of the morning.

Overall, it’s a quiet run with one shining moment. If you’re patient, that 19th morning is your best bet.

Rusty.

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