Marengo Surf Forecast and Surf Report

G’day, Rusty here. Let’s have a look at what’s coming up at Marengo over the next couple of weeks. It’s a reef and point setup that’s fairly consistent, especially with a solid SSW groundswell pattern lining up for a while.

The week kicks off proper Tuesday the 8th of September with a building SW groundswell. Tuesday morning has clean 4ft waves with that 18-second period—very long period groundswell, which means proper energy but sets will be spaced out, and it’s best on a point like this. Water temp is sitting around 57°, which is pretty normal for the time of year, nothing unusual. Wind is light offshore from the west, making for glassy conditions. The combined energy is a solid 1272 (moderate wave energy). It’s a great session for a beginner-friendly wave that’s still got some punch. Tuesday afternoon gets a bit bigger to 6ft, still offshore from the WSW at 25 km/h, but that’s a moderate breeze—still clean and excellent for experienced surfers.

Wednesday the 9th sees the swell jump to a serious 12ft with a very long 19-second period in the morning. That’s proper groundswell energy, and the combined energy reading is a whopping 14498 (very strong wave energy). Wind is cross-offshore from the SSW at 30 km/h, which keeps it clean, but 12ft is getting heavy—this is expert territory only, and tide conditions could be tricky. Wednesday afternoon stays at 12ft with 18-second period, still cross-off and clean, but again, this is not for beginners.

Thursday the 10th holds at 12ft in the morning from the SSW, 16-second period, cross-off wind, clean but still heavy. Combined energy is 5754 (strong). It drops to 10ft by the afternoon, still clean but a bit softer. Friday the 11th drops a little to 7ft in the morning, with light cross-off winds and 14-second period, and combined energy down to 1761 (moderate). That’s clean and excellent for experienced surfers. The standout for me though is Saturday the 12th: completely glassy, zero wind in the morning, 7ft SW groundswell with a 15-second period, combined energy 1782 (moderate). That’s as clean as it gets, and the conditions are perfect for a great session. Saturday afternoon also has glassy conditions with 6ft waves.

Sunday the 13th sees the swell easing back to 5ft and the winds shift to a cross-off NNW at 20 km/h, but it’s not quite as clean. Combined energy drops to 960 (moderate), and the score is lower. From Monday the 14th to Tuesday the 15th, the swell drops further—down to 3ft and 2ft—with moderate offshore winds, but it’s small and ordinary. That’s a couple of days where it’s pretty quiet.

But don’t worry, it picks up again Wednesday the 16th with 7ft from the SW, 16-second period, light cross-off wind, combined energy 2187 (moderate to strong), and clean. Thursday the 17th has 6ft in the morning with gentle offshore winds—clean and very good quality. Friday the 18th brings the smallest bit of rain but glassy conditions in the afternoon with 4ft SW groundswell, 15-second period, combined energy 695 (weak to moderate), and glassy conditions that are worth a paddle.

Saturday the 19th starts small and glassy at 5ft in the morning, but the afternoon is a standout: 12ft from the WSW, 12-second period, light cross-off wind from the NNW, combined energy 5198 (strong). That’s excellent for experienced surfers, but with a shorter period, it’ll be a bit more lined up at this reef break. Then Sunday the 20th holds at 6ft to 7ft, moderate offshore winds, clean, and solid energy (1531 to 1973, moderate). That’s another great session.

Monday the 21st is tricky—onshore wind from the east at 5 km/h to 15 km/h, with 8ft to 8ft SW groundswell, combined energy around 3000 (strong), but the wind is onshore and unknown conditions. Not ideal for paddle surfing, this setup looks more interesting for kite surfing than a clean wave. Tuesday the 22nd has a glassy morning with 6ft SW groundswell, 16-second period, combined energy 1815 (moderate)—that’s the one to aim for. Wednesday the 23rd finishes the run with cleaner cross-off winds but the swell drops back to 4ft to 6ft, combined energy between 880 and 1852 (moderate), still surfable.

Best on offer: definitely Saturday the 12th with that glassy morning and Saturday the 19th afternoon for the bigger, cleaner swell. Also Tuesday the 22nd morning is a glassy winner. Crowds are possible here at Marengo as it’s a fairly exposed spot and consistent, but there’s plenty of spread.

Rusty.

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