Irmas/Leftpoint Surf Forecast and Surf Report

Alright, let’s swap to feet and Fahrenheit for the imperial crew. Same spot, same story.

Water temp is 81°F, about normal for this time of year.

We’re looking at Irmas/Leftpoint, a reef break, and the next 16 days are a real grind. The first chance to surf is Saturday, September 5th, but it’s marginal. Thursday the 3rd and Friday the 4th are a total washout: 8ft to 8ft swell from the ENE, a short period of 7 seconds, and a strong cross-shore wind at 25 mph. Combined energy is moderate (1068–1464), but it’s messy cross-chop. No fun.

Saturday the 5th brings a 8ft ENE swell with a period of 13 seconds, energy up to 2564, but the wind is still a fresh cross-shore at 22 mph, creating lumpy chop. It’s the best of the first week, but far from perfect. The swell direction (ESE optimum) doesn’t match well, though the longer period gives some shape.

Sunday the 6th is risk t-storms with 8ft to 8ft ENE swell (12 seconds, energy 2704–3143), and a moderate cross-onshore wind makes it choppy. Monday the 7th sees a 10ft to 18ft SSW swell with a very long 15-second period, and the afternoon hits 18ft with energy up to 16735, but onshore winds at 25 mph. That’s too big and dangerous—only for experts, and even then, the wind ruins it. Kite surfers might love it, but paddle surfers should stay away.

Tuesday the 8th drops to 6ft to 5ft, short period (9 seconds), and cross-onshore wind. Marginal. From Wednesday the 9th to Thursday the 10th, the swell plummets to under 3ft, and the wind is fresh cross-shore or cross-onshore. Not worth it.

Friday the 11th shows a bounce: 7ft to 7ft ENE swell with a 13 to 12-second period, and moderate cross-shore wind. Energy is around 1292–1346, still marginal, but cleaner than earlier.

The real standouts are Sunday the 13th and Monday the 14th of September. Sunday the 13th has 8ft to 8ft ENE swell with an 8-second period, but the wind is a moderate cross-offshore from the NNE at 16 mph—clean! Energy is moderate (720–800). The wave comment says “clean.” This is your best window. Crowds are “sometimes,” so expect a few people.

Monday the 14th is also solid: 8ft ENE swell, same short period, but the wind is a light breeze at 6 mph, with only small wind ripples. Energy is moderate (1024–1232). This is clean and rideable for intermediates. The 8ft swell is over 5ft, so beginners might struggle.

After that, Tuesday the 15th sees a weird shift: only 3ft swell but with a very long 21-second period from the SSW, energy 1481. It’s a groundswell, but it’s breaking straight at a beach break with cross-shore wind. A tease. Wednesday the 16th and Thursday the 17th are back to poor conditions with 6ft to 5ft short-period slop and fresh cross-winds.

So, best bet: Sunday the 13th and Monday the 14th, with clean winds and consistent 8ft to 8ft swell. The rest is mostly messy or too big. Keep checking the forecasts—it’s a rough run, but that window is worth setting the alarm for.

Rusty.

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