Rivermouth Surf Forecast and Surf Report

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

Right off the bat, there’s a bit of a slow start. The first real chance to get wet isn’t until Friday morning the 28th of August. We’ve got a clean window with 6ft easterly swell, 9-second period, and a light cross-offshore breeze from the NNE. The water’s sitting at 66°, which is about average for this time of year. Rivermouth is a beginner-friendly spot, very consistent, and exposed to the south. That easterly swell direction isn’t the absolute optimum, but it’s creating excellent surf for experienced surfers. The combined energy is strong at 1009 (moderate wave energy). This morning window is the best on offer in the first week — clean, solid, and worth an early paddle.

Saturday morning the 29th keeps the clean theme going with a north wind holding cross-offshore, swell dropping just slightly to 6ft from the east, 10-second period. Still good, but the energy starts to fade (827). Saturday afternoon and Sunday drop right off into nothing worth chasing — small, messy, or onshore.

Monday the 31st is a write-off. Light rain, onshore and cross-onshore winds, weak energy. Tuesday and Wednesday are similar — cross-shore chop with barely any swell to work with. Not worth suiting up.

Now, into the second week. Thursday the 3rd of September rolls in with messy conditions. Strong onshore winds (SE 22 mph) and a 10ft short-period swell (8 seconds) — that’s just a washing machine. Energy is massive (1346) but it’s all wind and chop. Definitely for experts only, and even then, the quality is poor. By Friday the 4th, the swell jumps to 13-15ft with easterly winds, cross-on, and energy readings over 4000. This is strong, raw power, but the wind and rain ruin it for a decent paddle. Rivermouth’s beach break setup would be absolute chaos. Honestly, this looks more like a kite surfer’s playground than a surfer’s dream.

Sunday the 6th of September morning shows a glimmer. The swell drops to 10ft from the east, 10-second period, and the wind shifts light cross-on from the south. The note says wind and tide are favorable, but the swell is too big for this break. That’s a hard pass for most. If you’re a real charger, maybe, but even then, it’s a tough call.

Monday the 7th morning brings the swell down to 5ft from the east, 10-second period, with a light cross-shore SSW breeze. Marginal, but cleaner. Combined energy is moderate (592). Not a standout, but if you’re desperate, it’s the best looking day after that first Friday.

From there, the end of the forecast period fades into small, weak, or onshore slop through the 12th of September. Saturday the 12th morning picks up a bit — 7ft from the east, 10-second period, cross-shore NE breeze. Energy is solid (1140) but the cross-shore wind keeps it from being perfect. It’s a marginal call, but there’s size.

The one true standout is Friday morning the 28th of August. Clean, solid 6ft easterly swell, light offshore wind, and Rivermouth consistent as always. That’s your best wave of the window. After that, it’s more about picking scraps or waiting for that clean 5ft on Monday the 7th of September.

Stay patient, keep an eye on the forecasts, but for now, get that Friday paddle in.

Rusty.

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