Marengo Surf Forecast and Surf Report

Alright, folks, Rusty here. Let's have a look at what's on the menu for Marengo over the next couple of weeks.

We’ve got a real mixed bag coming our way. The pattern starts off a bit wild, settles down into some cleaner, smaller windows, and then looks like it might just throw a massive beast at us towards the middle of next week. Keep your eyes peeled for that one.

This Weekend (July 4th – 5th)

We kick off Saturday morning with a solid 10ft SW swell pushing in, but that 12 mph cross-offshore wind from the southwest is going to put a bit of a wobble on it. The wave energy is strong (4979), but it’s messy. Saturday afternoon sees the swell bump up to 12ft from the same direction, with a bit more wind. Honestly, it’s looking a bit average for a proper paddle session; with that much wind and size at a beach setup, this might be more of a kite-surfing day than a day to wrestle a shortboard.

Sunday takes a turn for the worse. The swell stays big, around 12ft, but the wind swings onshore from the ESE. That choppy mess means we’re giving it a hard pass. No bueno.

Next Week (July 6th – 10th)

Now we’re talking. The surf drops off, and the conditions clean right up. Monday morning sees a lighter 6ft SSW swell with a nice light cross-shore, but the real gem is Monday afternoon. Glassy conditions, a clean 5ft SSW groundswell with a period of 14 seconds – that’s proper. The wave energy is moderate (884), but for Marengo, that’s going to be smooth and workable.

Tuesday is similar, with clean, glassy 4ft to 4ft SW swell. The water temp is sitting at 59°, which is pretty much bang on average for this time of year.

The standout of this whole clean spell has to be Wednesday, July 8th . The morning session is the pick: a glassy 5ft SW groundswell rolling in with a very long period of 18 seconds. The swell energy jumps up (2091), and it’s going to have some real push and shape. For the experienced crew, that’s an excellent window. That long period will make the waves at this reef and point set up perfectly.

Thursday and Friday see the size fade back to the 4ft-4ft range, but it’s still glassy and clean, especially Friday morning with zero wind. Perfect small-wave fun.

The Following Weekend (July 11th – 12th)

The weekend takes a hit. The swell drops right off to less than 3ft on Saturday, but we get a strong northerly wind that’s going to chop it right up. Sunday is a write-off with rain and strong cross-offshore winds. Not worth getting wet for.

The Big One (July 13th – 14th)

Alright, here’s the wildcard. Monday the 13th is showing a massive pulse. We’re looking at a 21ft WSW swell. The combined energy reading is absolutely enormous (20394). This is way too big for this spot. That warning flag is up: it’s for experts only, and even then, it might be unsurfable here. Tuesday sees it drop back to a still-chunky 8ft SW swell, but the winds turn cross-offshore, so there might be some big, clean waves for the brave.

The Final Week (July 15th onwards)

We settle back down for the second half of July. Wednesday the 15th through Friday the 17th offers some very clean, manageable surf. The 17th, in particular, has a glassy 4ft SW swell with zero wind – a classic small-wave day rewarded with excellent conditions. The last few days of the outlook (the 18th and 19th) fade away into small, onshore mush.

So, overall? Wednesday morning, July 8th is your best bet for quality. For sheer size and a challenge, keep an eye on Monday, July 13th – but know your limits.

Stay salty,
Rusty.

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