Irmas/Leftpoint Surf Forecast and Surf Report

Howdy, Rusty here. Let’s have a look at what Irmas/Leftpoint is serving up for the next couple of weeks. Straight off the bat, this ain’t a quick start – the first week is pretty ugly with onshore winds and messy chop.

From Tuesday the 15th right through to Monday the 21st of September, the wind is a solid ENE at 18 to 25 mph, cross-shore, and it’s just wrecking the surface. The combined wave energy kicks off at a moderate 144, climbs into the hundreds, and even hits four digits, but it’s all lumpy cross-chop. Thursday the 17th has a 7ft ENE swell (period 10 seconds), but the wind’s fresh and cross-shore – not what you want on a reef. Water temp is 81°F, about normal for the time of year.

We got a real blank stretch for quality until the end of the month. The afternoon of the 16th does throw a 3ft SSW swell with a very long 18-second period and 725 energy, but the wind stays on it, so forget it.

Now, Wednesday the 23rd of September things start to change. Morning still has a 8ft E swell (period 10 seconds, energy 1503), wind drops to 6 mph, light cross – still a bit marginal. But that afternoon? That’s the one. A clean 8ft E swell, same period, wind shifts to a light WSW at 3 mph, giving us cross-off and clean conditions. Energy jumps to 1579 – strong, powerful. This is a reef point, so that 10-second period should hold the lines. This is for experienced surfers only, as the swell’s well over 8ft.

Thursday the 24th keeps it rolling – a 10ft E swell (period 9 seconds) with light cross-off breezes from WSW and W at 6 mph, dead clean. Energy stays high between 1312 and 1524. That’s proper groundswell territory, and the reef will turn it into something special. The crowd factor here says “sometimes” busy, but with waves this good, expect plenty of company.

Friday the 25th is a step down with a light cross-on, but still 8ft swell. Then Saturday the 26th is another gun day – the morning is glassy with an 8ft ENE swell (period 8 seconds), a light SE breeze giving a flat surface, energy at 1034. The afternoon stays glassy with a 8ft ENE swell. The guidance calls it very good surf. Be ready for crowds.

Sunday the 27th gives you a smaller, glassy 3ft SSW groundswell (14-second period, energy 532) in the afternoon – not the optimum ESE direction for this break, but glassy is glassy. The morning is a marginal 6ft ENE with a cross-on breeze.

From the 28th to the 30th, it’s mostly marginal or poor as the wind swings back onshore or cross-shore, with energy dropping and chop building.

The standout windows are Thursday the 24th and Saturday the 26th of September. Thursday has the biggest, cleanest, most powerful swell (10ft E, light cross-off wind) – absolute gold for the experienced surfer. Saturday morning is a very close second with glassy conditions and solid 8ft ENE swell. Get in the water if you’re ready for it.

Rusty.

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