Shipwrecks (Nusa Lembongan) Surf Forecast and Surf Report

Alright, Rusty here, let’s have a look at what’s heading our way over the next couple of weeks.

Right, straight off the bat, this is a cracking run for Shipwrecks (Nusa Lembongan). The setup is a reef break, consistent, and only for advanced surfers, with an optimum swell from the SW – and that’s exactly what’s on the cards. The water temp is sitting at around 80°F, which is bang on average for this time of year, so nothing unusual there. The whole period kicks off with a busy, clean vibe.

Monday the 14th gets things going with a solid 5ft SW groundswell rolling in at a long 16 seconds. There’s moderate offshore wind in the morning, turning a touch lighter in the arvo. The wave energy is moderate (976), and it’s clean. Not massive, but very good quality.

Come Tuesday the 15th, the swell bumps up slightly to 5ft from the SW, period still a juicy 15 seconds. Morning has clean offshore winds – absolute magic for a reef like this.

Wednesday the 16th holds the same size and direction, with a cross-off breeze that keeps things tidy. The swell energy is still in the 900–1000 range, so not huge grunt, but the quality is there.

Then we hit Thursday the 17th, and this is where it starts to stand out. The swell ticks up to 5ft from the SSW, period 14 seconds, and you’ve got gentle offshore winds in the morning. The combined energy jumps to 1199 – that’s moderate but pushing into strong territory. This is a proper day, clean and lined up.

Friday the 18th eases off a touch to 5ft, but still with gentle offshore winds. Clean, fun, smaller but well-shaped.

The weekend of the 19th drops a bit to 4ft, and the winds go cross-off. Still surfable, but the energy dips below 800. Not the pick of the week.

Now, Sunday the 20th kicks off a new pulse. Swell pops back to 5ft SW, 16 seconds, and the combined energy rockets up to 1388. This is proper. Monday the 21st holds similar with 5ft and 1109 energy, then Tuesday the 22nd settles again.

But here’s the real standout: Wednesday the 23rd, late in the first week. Swell jumps to 6ft from the SSW, 16 seconds, and the energy hits 1563. That’s strong, clean, and with cross-off winds. This is the biggest, most powerful wave of the first week.

Then, a short lull, before it absolutely goes off.

Saturday the 26th sees 6ft building to 6ft SSW, period 15–16 seconds, and the energy is cruising in the 1400–1500 range. Light offshore to gentle offshore. Stellar.

And then the big one. Sunday the 27th. This is a serious day. Swell hits 8ft in the morning, 10ft in the afternoon, both from the SSW, with a very long period of 19–20 seconds. The combined energy is a massive 6116 – that’s not just strong, that’s next-level power. Offshore winds both sessions. This is only for experienced surfers. Anyone else should stay on the beach. This will be big, clean, and intimidating.

Monday the 28th stays solid at 8ft with 17 second period, energy still over 3900. Still only for the brave. It tapers down on Tuesday the 29th to 6ft, but still very good.

So, the pick of the entire outlook is undoubtedly Sunday the 27th of September. That’s the one you circle. Big, clean, long period groundswell, offshore winds, and a reef that can handle it. For the earlier week, Thursday the 17th and Wednesday the 23rd are the highlights.

No crowds mentioned specifically, but it’s a reef break that’s *sometimes* crowded, so expect company on the standout days.

Rusty.

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