Lacerations (Nusa Lembongan) Surf Forecast and Surf Report

Alright, let's get into it. Rusty here, looking at what's on offer for Nusa Lembongan, specifically at the slab they call Lacerations. This is a heavy, advanced reef break, and it's not for the faint of heart. It's also pretty inconsistent and can get crowded, so you need to pick your moments.

The first real window of opportunity kicks off on the morning of Sunday, July 19th. We've got a solid 4ft SW groundswell pushing in with a nice 13-second period, and the wind is howling offshore from the SE at 15 mph. That's going to keep the surface glassy. The combined energy is moderate at 642, and the word is "good surf conditions." It’s a solid start, but the afternoon takes a slight dip with the score dropping, so the morning session is the move.

Now, Monday, July 20th is where things get interesting. The morning brings a bigger 6ft swell from the SSW with a very long 17-second period. This is a serious groundswell. The energy jumps way up to 2029, which is moderate-to-strong, and the wind is still a clean offshore SE breeze. This is for the experienced crew only – it'll be big, powerful, and the long period means it'll stand up tall and wall up hard. For a reef like Lacerations, this is the standout of the first week. The afternoon stays solid too with 6ft and 16 seconds.

Tuesday, July 21st hangs in there. The morning shows 5ft SSW swell at 14 seconds. The energy is still respectable at 1018, and the offshore wind holds. This is still very good, but the afternoon's wind goes cross-offshore, making it a bit trickier. After that, the consistency drops off through Wednesday the 22nd and Thursday the 23rd. The swell dips down to under 3ft, and while the wind stays mostly offshore, the energy and quality fall off, with most of the day sessions marked as "marginal." You'd be waiting around.

Friday, July 24th is more of the same with smaller swell, even though some longer-period groundswell tries to sneak in. Nothing worth getting too excited about until Saturday, July 25th. That morning, a 4ft SSW swell with a 15-second period and offshore wind shows up. The combined energy jumps to 1255 and they're calling it "very good surf conditions." That's a strong morning session.

The pattern then shifts. Sunday, July 26th and Monday, July 27th see a wind swell from the SE. The height is still decent at 6ft and 5ft, but the period is short – 8 seconds or less. That means weaker, less organised waves. The energy numbers drop back into the hundreds, and Monday afternoon is rated as "poor surf conditions." Not ideal for a heavy reef.

We get a bit of a reset on Tuesday, July 28th with a small 3ft SSW groundswell, but the wind is light offshore, so there might be a sneaky clean wave if you're desperate.

Then, Thursday, July 30th deserves a mention. The morning is average, but the afternoon session is a real sleeper. You've got a 4ft SSW swell but the period stretches out to a massive 19 seconds, and the energy surges to 1312. With the SE offshore wind at 12 mph, it’s clean. This is "very good surf conditions" and might be the sneaky best session of the second week if that long-period energy focuses on the reef.

Looking into the first week of August, Saturday the 1st and Sunday the 2nd show some size again, with 6ft SW swell, but the period drops to around 15 to 17 seconds. The energy is very high, over 2000, which is strong. However, the wind is a fresh 19 mph offshore breeze. That's a lot of wind, and the records mark those sessions as "marginal." It'll be big and clean-ish, but the wind might be too strong, making it a tough paddle and creating some nasty chop. That's one for the experts only, and you'd want to be confident.

Finally, Monday, August 3rd rolls around with a 5ft SW, 14-second groundswell. The energy is still high at 1629, and the wind backs off to a moderate 12 mph offshore. That looks like a much cleaner option to close out the forecast period.

So, the standout sessions are Monday morning, July 20th for the big, long-period groundswell, and that sneaky Thursday afternoon, July 30th for the clean, very-long-period energy. The first week has a clearer, more consistent run of quality, while the second week is more of a pick-and-choose game with some tricky wind.

Take it easy out there, it's a shallow reef.

Rusty.

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