Mainside Surf Forecast and Surf Report

Alright, Rusty here. Let’s break down the Mainside outlook in feet and miles per hour.

Right off the bat, I’ll be straight with you—this is not a classic run for this spot. The first real chance of a wave that’s worth paddling out for is Wednesday morning, August 5th. Before that, it’s flat or just plain messy. From Wednesday the 5th right through until the 12th, it’s a pretty bleak stretch, but we do get a tiny window of hope.

Wednesday morning, August 5th is your standout window, and honestly, it’s the only one worth getting excited about. Mainside is a consistent reef break, exposed to the north, and the optimum swell direction is from the north. We’ve got a long-period groundswell of 6 ft at 17 seconds from the east, which isn’t the ideal direction for the setup, but the energy is solid. The combined energy is pumping at 1682 (moderate wave energy). The water’s sitting at 87°, which is a touch warmer than normal for this time of year. The wind is a light 12 mph from the northeast, blowing cross-offshore, keeping things clean. For a more advanced crew, this is the one to look at. Crowds can pop up here sometimes, so you might have a few guys out, but it’s worth it for those clean, long-period lines.

Wednesday afternoon the wind picks up and swings more onshore, turning it lumpy. Forget it.

From Thursday the 6th through to Tuesday the 11th, it’s a write-off. We get a massive spike in swell on Friday the 7th—25 ft from the north with hurricane-force winds—but that’s a dangerous, violent mess. Do not even think about it. That swell is way too big for paddle surfing and the conditions are a straight-up hazard. After that, the wind stays brutal or the swell drops into the gutter.

There is a flicker on Wednesday morning, August 12th. Swell is small at 4 ft from the west with a short period of 8 seconds, but the wind is light at 6 mph from the south, blowing cross-offshore. The combined energy is only 205 (weak), but it’s clean. If you’re desperate for a session, this is a possibility, but it’s nothing to write home about. The rest of that week and into the next is tiny—knee-high dribble with onshore winds. Not worth your time.

So, the summary? Wednesday morning, August 5th is your best bet by a long shot. After that, sit tight because the second week is looking very quiet and uncertain. Forecasts can change, but right now, it’s a one-and-done kind of stretch.

Rusty.

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