Surf Forecasts:
Lacerations (Nusa Lembongan) surf forecast from 16 Aug 2026:
- Best quality surf: Wednesday 19 Aug, 2AM (local time) - 4ft (1.2m), 19s period, SSW swell with offshore winds.
- Most powerful swell: Wednesday 19 Aug, 11PM (local time) - 8ft (2.4m), 17s period, SSW swell with 3,301 kJ wave energy.
- Next surfable swell (1★+): Sunday 16 Aug, 5PM (local time) - 5.5ft (1.7m), 15s period with SSW swell.
Best Forecast Surf Conditions for Lacerations (Nusa Lembongan) this week:
The surf forecast for Lacerations (Nusa Lembongan) over the next 16 days: The first swell (rated 1 star or higher) is forecast to arrive on Sunday (Aug 16) at 5PM. The primary swell is predicted to be 1.7m and 15s period. The wind is predicted to be offshore as the swell arrives.
The most powerful waves expected at Lacerations (Nusa Lembongan) in the next 16 days are 2.4m 17s and forecast to arrive on Wednesday (Aug 19) at 11PM. Winds are predicted to be offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.3m 6s period and expected on Thursday (Aug 20) at 11AM.
| Wave Type | Time (WITA) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 5PM (Sun 16th Aug) | 5.5ft (1.7m) 15s |
| Best Surf | 2AM (Wed 19th Aug) | 4ft (1.2m) 19s |
| Most Powerful | 11PM (Wed 19th Aug) | 8ft (2.4m) 17s |
Table - best surf conditions forecast for Lacerations (Nusa Lembongan) over the next 16 days.
The Lowdown
G’day, Rusty here. Let’s get straight into it for Lacerations, the standout spot on this whole run. It’s a sheltered reef break over on Nusa Lembongan, and the water temp’s at a normal 80°, nothing weird going on there for this time of year.
We’ve got a solid window of surf ahead, starting now and running right through the next couple of weeks. The first couple of days, Sunday and Monday, we’re seeing clean conditions with light offshore winds. Swell is hanging around the 6ft from the SSW with a long 16-second period, carrying a decent amount of energy. It’s not huge, but it’s got push, and that light breeze is going to keep it glassy. Keep in mind, this spot is inconsistent, so when it turns on, you’ve got to be on it. Monday sees a bit of a drop to 4ft, still clean, but the energy backs off, so Sunday is the better call for the start.
Then things start to build again. Tuesday the swell dips a little in the morning but comes back up to 6ft in the afternoon with a long 16-second period, and the energy jumps right back up. It’s still offshore and clean, so that’s a good one.
Now, the standout for the whole period shaping up is Wednesday the 19th. This is where it gets proper. Morning has 7ft of SSW swell with a very long 18-second period, and the energy is pumping. Afternoon pushes that to 7ft with the same long period and even more energy. Winds stay offshore, light in the morning, a touch more in the afternoon, but it’s clean. This is the day for the experienced crew; that size with that period on a reef is serious business. This is the pick of the first week, no doubt.
Thursday the 20th keeps the quality high: 8ft in the morning from the SW, still a long 16-second period and solid energy. It’s still clean with light winds. Definitely another excellent day.
Friday the 21st, the wind picks up to 25 km/h offshore. Swell drops back to 5ft in the morning but builds to 7ft in the afternoon. The morning still looks excellent, but the afternoon gets a bit trickier with that stronger wind, and the reports suggest some questionable tide action. Still, it’s a reef, so it might hold.
Saturday the 22nd is another good one, 7ft in the morning with a 16-second period and strong energy. The wind is still blowing at 25 km/h offshore, so it’s going to be wind-blown but clean. Afternoon drops slightly to 6ft.
After that, the swell takes a bit of a breather. Sunday the 23rd has 5ft in the morning, but the afternoon swings to a cross-off wind, which changes the character. Monday the 24th sees the swell bounce back to 6ft with a 14-second period, and the morning is clean with an offshore breeze, but the afternoon goes cross-off again and looks less ideal.
The middle of the second week, the 25th and 26th, the surf dips in size and the winds stay cross-off, so it’s not looking as clean. The energy drops off too.
But then, look out for Thursday the 27th. The morning brings a 5ft swell but with a massive 19-second period, and the energy jumps way up. That’s some serious groundswell. The winds are offshore and moderate, so it should be okay, but the afternoon goes cross-off with 6ft. That morning session could be the sleeper hit of the second week if you’re chasing that long-period juice.
The run finishes off with more cross-off conditions and smaller surf, but there’s still waves from the 28th through the 31st, mostly in the 4ft to 6ft range. The morning of the 30th looks clean with an offshore breeze, and the mornings of the 31st are also clean with a moderate offshore wind.
So, bottom line: the prime windows are Wednesday the 19th and Thursday the 20th for the biggest, cleanest, most powerful surf. If you want a bit less size but still great quality, the mornings of the 17th, 18th, and the 24th are good bets. The second week has promise, but it’s further out, so don’t lock in your plans just yet. Just remember, Lacerations is a proper reef break, it’s inconsistent, and when it’s over 7ft, you better know what you’re doing. For the less experienced, the 4ft to 5ft days with the light winds are your window.
Stay stoked.
Rusty
Short Range ForecastMostly dry. Warm (max 27°C on Tue afternoon, min 23°C on Sun night). Wind will be generally light. | Days 4-6 Weather SummaryMostly dry. Warm (max 27°C on Wed afternoon, min 24°C on Wed morning). Wind will be generally light. | ||||||||||||||||||||
Sunday 16 | Monday 17 | Tuesday 18 | Wednesday 19 | Thursday 20 | Friday 21 | Saturday 22 | |||||||||||||||
AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | |
Swell Height Map | |||||||||||||||||||||
Wave Height (m) Direction Period (s) | SSW 16 | SSW 15 | SSW 14 | SSW 14 | SSW 14 | SSW 18 | SSW 16 | SSW 16 | SSW 19 | SSW 18 | SSW 18 | SSW 17 | SW 16 | SW 16 | SSW 16 | SSW 18 | SSW 17 | SSW 16 | SSW 16 | SSW 16 | SSW 15 |
Wave Graph | |||||||||||||||||||||
1803 | 1418 | 996 | 722 | 621 | 491 | 717 | 1555 | 993 | 2576 | 3032 | 3262 | 2761 | 2349 | 1721 | 1098 | 2737 | 2402 | 1834 | 1650 | 1241 | |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | off | off | off | off | cross-off | off | off | off | off | off | off | off | off | off | off | off | off | off | off | cross-off | off |
High Tide | 12:24PM1.90m | 00:54AM1.97m | 12:59PM1.71m | 1:21AM1.97m | 1:33PM1.51m | 1:49AM1.92m | 2:06PM1.31m | 2:17AM1.83m | 2:41PM1.11m | 2:50AM1.72m | 3:46PM0.94m | 3:39AM1.60m | |||||||||
Low Tide | 6:38PM0.29m | 7:08AM0.44m | 7:00PM0.41m | 7:48AM0.49m | 7:20PM0.55m | 8:30AM0.57m | 7:36PM0.67m | 9:20AM0.67m | 7:45PM0.79m | 10:35AM0.76m | 7:25PM0.88m | 1:36PM0.74m | |||||||||
6:26 | — | — | 6:26 | — | — | 6:26 | — | — | 6:26 | — | — | 6:26 | — | — | 6:24 | — | — | 6:24 | — | — | |
— | 6:16 | — | — | 6:16 | — | — | 6:16 | — | — | 6:16 | — | — | 6:16 | — | — | 6:16 | — | — | 6:16 | — | |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 1 |
Temp °C | 26 | 26 | 25 | 26 | 26 | 24 | 26 | 27 | 25 | 26 | 27 | 25 | 26 | 27 | 25 | 26 | 26 | 25 | 26 | 26 | 25 |
Feels °C | 28 | 27 | 28 | 28 | 27 | 26 | 27 | 28 | 27 | 28 | 28 | 27 | 28 | 27 | 27 | 26 | 25 | 26 | 26 | 26 | 26 |
Swell 1 Height (m) Direction Period (s) | SSW 16 | SSW 15 | SSW 14 | SSW 14 | SSW 14 | SSW 13 | SSW 16 | SSW 16 | SW 16 | SSW 18 | SSW 18 | SSW 17 | SW 16 | SW 16 | SSW 16 | SSW 15 | SSW 17 | SSW 16 | SSW 16 | SSW 16 | SSW 15 |
1803 | 1418 | 996 | 722 | 621 | 368 | 717 | 1555 | 993 | 2576 | 3032 | 3262 | 2761 | 2349 | 1721 | 1083 | 2737 | 2402 | 1834 | 1650 | 1241 | |
Swell 2 Height (m) Direction Period (s) | SE 5 | — | SE 5 | SE 5 | SSW 20 | SSW 18 | SSW 13 | NE 6 | SSW 19 | SE 6 | SE 6 | NE 8 | SE 6 | SE 7 | NE 8 | SSW 18 | — | — | SE 6 | NE 7 | NE 7 |
16 | — | 22 | 22 | 75 | 491 | 295 | 7 | 993 | 33 | 58 | 20 | 76 | 91 | 15 | 1098 | — | — | 74 | 8 | 8 | |
Swell 3 Height (m) Direction Period (s) | — | — | — | ENE 6 | NE 6 | NE 6 | SSW 21 | SE 6 | SE 6 | NE 7 | NE 7 | — | NE 7 | NE 8 | — | NE 7 | — | — | — | — | — |
— | — | — | 4 | 6 | 6 | 516 | 15 | 35 | 16 | 18 | — | 18 | 20 | — | 7 | — | — | — | — | — | |
Wind waves Height (m) Direction Period (s) | SE 5 | SE 5 | ESE 5 | ESE 5 | SE 6 | SE 6 | ESE 5 | SE 6 | — | — | ESE 6 | SE 6 | ESE 6 | ESE 7 | SE 7 | SE 7 | SE 7 | SE 6 | SE 6 | SE 6 | SE 5 |
25 | 16 | 44 | 49 | 30 | 31 | 42 | 31 | — | — | 113 | 46 | 141 | 163 | 208 | 192 | 176 | 162 | 112 | 66 | 45 | |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 0 | 0 | 0 | 0 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 0 |
Best forecast wave conditions in Nusa Lembongan - Bali | |||||||||||||||||||||
Best forecast wave conditions in Indonesia | |||||||||||||||||||||
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Information about the Lacerations (Nusa Lembongan) Surf forecast
The above surf forecast table for Lacerations (Nusa Lembongan) provides essential information for determining whether the surfing conditions will be good over the next 16 days. A general guide to surfing at Lacerations (Nusa Lembongan) can be found by selecting the local surf guide option on the grey menu. Our Lacerations (Nusa Lembongan) surf forecast is unique since it includes wave energy (power) that defines the real feel of the surf rather than just the height or the period. If you surf the same spot (Lacerations (Nusa Lembongan)) regularly then make a mental note of the wave energy from the surf forecast table each time you go. Very soon you may start to choose your surf days based on the wave energy alone combined with our forecast of favourable offshore wind conditions. Our star ratings will help here and of course you will also find the usual wave height and period predictions on our surf forecasts as well as a full break down of the swell components under our advanced users option (to reveal that, click the little Einstein character under the tide times).
Further information to help with frequently asked questions about our surf forecast for Lacerations (Nusa Lembongan) may be found under the help tab on the top menu and also by moving your mouse over the question marks on the surf forecast table itself. Please always bear in mind that the forecast is for near-shore open water and local factors at each surf break influence the actual breaking wave height, such as the beach / reef profile, water depths offshore and shelter.
Lacerations (Nusa Lembongan) is 16 km (10 miles) from the city of Klungkung. If you plan a holiday in Nusa Lembongan - Bali, look for hotels and other accommodation in Klungkung. Klungkung has rooms for a wide range of budgets as well as car hire and transport links.











