Marengo Surf Forecast and Surf Report

Alright, grab a coffee, because this forecast is a bit of a tale. We're looking at Marengo, a reef and point set-up. There's a massive pulse of energy coming through to kick things off, but it's not without its complications. This is going to be a full-on ride, with some serious swells, but you'll need to pick your moments for the clean ones.

The big story this Saturday, August 22nd, is not for the faint-hearted. The ocean is absolutely thumping with a very powerful swell, a proper 16ft SW groundswell. The energy numbers are massive. This is a beast. It’s for experienced surfers only—beginners, this is definitely one to watch from the beach. The wind is howling offshore at 16 mph, which is a blessing, but the sheer size makes it a heavy, expert-only affair. As the day goes on, it backs off a touch but remains solid at 10ft with a very long 15-second period, another big energy reading, and still offshore winds. This is the kind of power that really suits a reef setup. The water temp is about average for this time of year.

Sunday the 23rd sees the swell drop but it’s still a solid, clean blanketed 6ft to 7ft. The period is even longer, up to 16 seconds, which points to a beautifully shaped, powerful groundswell. Light winds keep it clean. It’s still a bit on the beefy side for beginners, but it’s a world apart from Saturday. This is the standout window of the first week.

Monday the 24th offers a step down to a very manageable and clean 5ft, with a decent 14-second period. Winds are super light. This is where it starts to look fun for a broader crowd.

We hit a flat spell from Tuesday the 25th. The wind turns onshore and the swell drops, so you’re looking at a shaky stretch of days. The next real sniff of action is the morning of Friday, August 28th. A new, clean 6ft SW groundswell with a lovely long 17-second period rolls in, and the wind is light offshore. This is another fine, expertly-lined day.

The weekend of the 29th and 30th is a mixed bag. Saturday looks a bit of a mess with cross-shore winds, but Sunday the 30th... hold onto your board. The afternoon absolute standout of the entire forecast is on Sunday afternoon. We're looking at a very powerful 10ft SSWest swell with a massive 18-second period and the forecast shows a massive energy rating. This is a major groundswell event. The wind is clean, making for an epic, heavy, expert-only session at the point.

The following Monday, August 31st, looks absolutely perfect for those who want the power without the absolute max size. We're seeing a glassy 7ft SW swell. That's the word, "glassy." A morning session right there would be pristine. The offshore winds kick back in on Tuesday, September 1st, with a solid 8ft, but that's also matched with strong winds.

After that, there are a few smaller, cleaner days on Thursday September 3rd and another solid pulse arrives on Friday September 4th, offering a powerful 8ft SW groundswell and a moderate offshore breeze. This run of consistent, clean swell toward the end of the window looks promising.

For the best on offer for the strongest, most expert-level ride, you cannot miss the afternoon of Sunday, August 30th. For a more manageable but still powerful clean session, the glassy Monday morning of August 31st is your ticket.

Rusty.

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