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.

First up, the water is sitting at about 57°F, which is normal for the season – nothing crazy.

We kick off Sunday, September 6th, with a solid start. Morning sees a clean 5ft swell from the SW with a lovely 14-second period. The wind is light offshore from the W, so it’s glassy and clean. The combined energy is moderate at 968, which is plenty for a fun session. This is a good one for the beginners, given the size. The afternoon picks up a bit of breeze but stays clean.

Monday the 7th is a bit of a mixed bag. Rain showers in the morning with a weaker 3ft swell and cross-off winds, so the surf is poor. The afternoon, however, sees a jump to 6ft from the SW, but the cross-off wind keeps it a bit messy. The energy jumps to 1590, so there’s punch, but the quality is questionable.

Now, Tuesday the 8th is where it starts to get interesting. Morning brings a clean 4ft, 18-second groundswell. That’s a long period, which means great shape and energy, but it might be a bit too straight for the beach, so keep it on the point. The wind is light offshore, and the energy is a solid 1375. This is excellent for experienced surfers. The afternoon is a bit bigger at 6ft with a moderate offshore wind.

Wednesday the 9th is a big one, but it’s pretty much for experts only. The morning sees a massive 13ft SW swell with a 16-second period and a combined energy of 12495. The wind is cross-off, but honestly, that’s a lot of water. The afternoon is even bigger at 18ft and 18 seconds, with energy hitting 27495. That’s too big for this break, so unless you’re a pro, sit this one out.

The swell drops back Thursday the 10th, but it’s still solid. The morning is 12ft with cross-off winds, which is marginal. The afternoon is a better 10ft with offshore winds, making for excellent conditions for experienced surfers. Energy is still high at 4784.

Friday the 11th offers a nice 7ft in the morning, but it’s a bit messy with cross-off winds. The afternoon cleans up with a 7ft SW swell and light cross-off winds, making for excellent conditions. Energy is 1785.

Saturday the 12th is a bit of a wildcard. The morning has a light cross-on breeze from the NE, so it’s a bit choppy. But the afternoon? The wind goes glassy, with a 5ft SW swell and a 15-second period. That’s a real treat – clean, long-period waves. Energy is 1048, and it’s a great option for the afternoon session.

The second week starts to taper off. Sunday the 13th is poor with strong cross-off winds, though the afternoon picks up a bit. Monday the 14th has strong offshore winds, but the swell is small and the period is short, making it hard to paddle into. Energy is low.

The standout of the whole forecast, without a doubt, is Tuesday the 15th. The morning session is shaping up to be epic. A 16ft WSW swell with a 14-second period, clean offshore wind from the W, and a combined energy of 15301. That’s strong wave energy, and for expert surfers, this is exceptional. The afternoon is still good at 10ft, but the morning is the one to circle on the calendar. It’s a week and a half out, so keep an eye on it, but it looks promising.

After that, Wednesday the 16th has a decent 7ft morning with offshore wind, but it gets big and messy in the afternoon. Thursday the 17th has cross-on winds and big swell, making it choppy. Friday the 18th is small and clean, and Saturday the 19th offers a nice 4ft, 19-second groundswell in the afternoon with light offshore wind – a good little session for the weekend.

The last day, Sunday the 20th, finishes strong with a clean 7ft SW swell in the morning, with gentle offshore winds and energy of 2038. That’s a solid note to end on.

Overall, there’s a big gap of poor surf from the 13th to the 14th, but the real gems are Tuesday the 8th for the long-period groundswell and Tuesday the 15th for the big, powerful swell. If you’re after clean, fun waves, the glassy afternoon on Saturday the 12th is a winner.

Later, Rusty.

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