Marengo Surf Forecast and Surf Report

Alright folks, Rusty here. Let’s break down what’s happening at Marengo over the next couple of weeks.

We’re starting off slow. The first session worth talking about doesn’t really happen until early next week. Sunday the 19th has a tiny 0.8m SSW swell with glassy morning conditions, but the energy is weak (330) and it’s more of a longboard cruise than anything to get excited about.

Monday the 20th remains small, with a 0.8m WSW swell pushing in with a long 16-second period, but the cross-off wind keeps it clean enough for a few fun ones. The energy is still low (359). It’s surfable, but nothing to write home about.

Now, Tuesday the 21st is where we start to see some life. The swell bumps up to 1.2m from the SW with a 14-second period, and the combined energy jumps into the moderate range (532). The morning cross-off wind from the NNW keeps things clean. This is the first decent option for the intermediate crew, offering some proper shape and push.

Wednesday the 22nd is a write-off—strong winds and rain, with the swell dropping back. Not worth your time.

Here’s the standout. Thursday the 23rd brings a big jump. Swell hits 4.0m from the SW with a 13-second period, and the energy is massive (8493). The morning has fresh offshore wind from the WSW, making for clean, powerful lines. This is a big-wave day, only for experienced surfers. The break is a reef and point setup, so that long-period groundswell will wrap in nicely. Water temperature is 15°, which is about a degree warmer than average for this time of year—nothing crazy, but noticeable.

Friday the 24th is even bigger—6.0m to 6.5m from the WSW and SW, with energy readings over 20,000. The wind is offshore all day, but the swell is absolutely massive. This is expert territory only. The guide even flags it as too big for the break, so unless you’re towing in, give it a miss.

The swell slowly drops over the weekend, but Saturday the 25th still has 5.0m to 4.5m SW swell with offshore winds in the morning. Still big, still for the experienced crew.

By Sunday the 26th, it’s down to 2.5m from the SW with a shorter 11-second period, but the wind is strong and cross-off. It’s cleaner than it looks, but the energy is still high (2232). Could be a fun session for strong intermediates who are comfortable in 8-foot surf.

The following week (from the 27th onward) sees the swell drop back to the 1.0m to 2.0m range, with mostly cross-off winds and some periods of offshore. There’s a small window on Thursday the 30th afternoon with 0.8m SW swell and a 12-second period, and the wind is light, making for a glassy little session. Energy is low (328) but it’s clean.

Into the first week of August, the swell flirts with 1.5m from the SW with very long periods (17-20 seconds), but the wind is either too strong or the energy is still moderate. Nothing’s firing, but it’s not flat either.

Overall, the real standout is Thursday the 23rd and Friday the 24th for the big-wave chargers. If you’re after something more moderate, Tuesday the 21st is your best early bet. For the rest of us, it’s a waiting game.

Stay safe out there.

Rusty.

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