Marengo Surf Forecast and Surf Report

Alright folks, Rusty here, checking in on the Marengo stretch. We’ve got a solid 16-day window that kicks off with a real bang, but there’s a bit of a lull to work through later. Let’s get into it.

The first real action hits us on Friday the 4th of September. We’ve got a big, powerful SW groundswell rolling in at 10 feet with a long 16-second period. The combined energy is pumping at 3820, so there’s plenty of push. Wind is a bit of a cross-off from the NNW, so it’s clean but not absolutely perfect. Still, for a Friday arvo, it’s a solid start.

The standout is undoubtedly Saturday afternoon the 5th. That’s the one you want to circle. The swell jacks up to 15 feet from the WSW, with a 15-second period, and the energy reading hits a massive 11912 — that’s serious power. The wind goes offshore at 25 mph from the WNW, so it’s going to be as clean as a whistle, but paddling in will be a battle. This is strictly for the experts, as anything over 8 feet gets heavy, and this is way beyond that. If you’re a beginner, give this one a wide berth.

Sunday the 6th is a big comedown, but still a nice clean day. Swell drops to 5 feet from the SW with a 14-second period, and we get gentle offshore winds in the morning. It’s clean and rideable, but nothing to write home about compared to Saturday.

The next real highlight comes on Tuesday the 8th. The morning session is a glass-off dream. Winds are dead calm, glassy conditions, and the swell is 4 feet from the SW with an 18-second period. That’s proper long-period groundswell. The energy is moderate at 1375, but it’s a reef and point set-up, so those long lines will wrap in beautifully. This is a day for the experienced surfer who wants quality, not just size.

We get another pulse on Wednesday the 9th, with the swell jumping back up to 13 feet from the SW, a 16-second period, and energy at 12906. The wind is a stiff cross-off, so it’s clean but messy sideshore. Another big day for the chargers only.

After that, through the second week, the swell fades and the windows get smaller. The 11th of September offers a nice 7 feet SSW swell with light winds, but it’s cross-off. The 19th of September shows a late-season pulse of 8 feet from the SW with a 19-second period, but the wind is light cross-on, so it’s a bit of a tease. The middle of the week from the 14th to the 16th is a write-off — tiny, weak swells with poor wind, just a few days with nothing to offer.

Best Bet: Without a doubt, Saturday afternoon the 5th for the big wave crew, and Tuesday morning the 8th for the clean, glassy, quality groundswell for the experienced surfer.

The water temperature is sitting at 57°F, which is about 2°F warmer than average for this time of year, so it’s a touch on the mild side but nothing crazy.

Stay safe out there, and pick your battles.

- Rusty

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