Surf Forecasts:
Lacerations (Nusa Lembongan) surf forecast from 12 Sep 2026:
- Best quality surf: Sunday 13 Sep, 8AM (local time) - 4.5ft (1.4m), 18s period, SW swell with offshore winds.
- Most powerful swell: Sunday 13 Sep, 2PM (local time) - 6ft (1.8m), 18s period, SW swell with 1,904 kJ wave energy.
- Next surfable swell (1★+): Sunday 13 Sep, 8AM (local time) - 4.5ft (1.4m), 18s period with SW 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 (Sep 13) at 8AM. The primary swell is predicted to be 1.4m and 18s period with a secondary swell of 1.0m and 14s. 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 1.8m 18s and forecast to arrive on Sunday (Sep 13) at 2PM. Winds are predicted to be offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.2m 6s period and expected on Monday (Sep 14) at 2AM.
| Wave Type | Time (WITA) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 8AM (Sun 13th Sep) | 4.5ft (1.4m) 18s |
| Best Surf | 8AM (Sun 13th Sep) | 4.5ft (1.4m) 18s |
| Most Powerful | 2PM (Sun 13th Sep) | 6ft (1.8m) 18s |
Table - best surf conditions forecast for Lacerations (Nusa Lembongan) over the next 16 days.
The Lowdown
Right, here’s how it shakes down. The only break worth talking about for the full 16 days is Lacerations (Nusa Lembongan). It’s a sharp reef wave for advanced surfers only, and it’s inconsistent, so you have to pick your moments. Crowds are a regular thing here, so be ready to share.
Water temperature is around 80°, right where it should be for this season.
We’ve got a solid SW groundswell kicking in from this Sunday, 13th September. Swell height is 4ft with a very long 18-second period, and the energy is strong (1504). The wind is light offshore from the SE – glassy conditions, perfect for the reef. Sunday morning is the real highlight – the surf is as clean as it gets.
Monday and Tuesday morning keep that quality going, with swell holding between 4ft and 5ft and periods around 15–16 seconds. Energy stays strong in the 1000s. Winds are offshore or clean. Tuesday afternoon gets a little cross-off, so the early sessions are the go.
Wednesday and Thursday see the swell bump up a touch, but the wind turns more cross-off. Still very surfable, just not as perfect as that opening Sunday.
Then Sunday 20th September morning fires up again. Swell hits 5ft with a 16-second period, energy at 1380, and a gentle offshore breeze. Another prime window.
Heading into the last week (21st to 28th September), the swell stays active, ranging from 4ft up to 7ft. The real standout here is Thursday 24th September afternoon: a 7ft SSW swell with a 17-second period and energy hitting 2174. That’s serious power. The wind is light and cross-off – clean but not glassy. This one is for experienced surfers only. Wave quality is excellent.
From there through the 28th, we’re looking at 5ft to 6ft SW groundswells with light winds. Good consistency and plenty of energy.
So, the first week has some absolute crackers, and the second week builds into another powerful, clean finish. Confidence is high for the near-term; the longer-range stuff looks good but is a bit less locked in.
Rusty out.
Short Range ForecastSome drizzle, heaviest during Tue night. Warm (max 27°C on Sun morning, min 24°C on Sun night). Wind will be generally light. | Days 4-6 Weather SummaryLight rain (total 2mm), mostly falling on Wed night. Warm (max 27°C on Thu afternoon, min 24°C on Thu night). Wind will be generally light. | ||||||||||||||||||||
Sunday 13 | Monday 14 | Tuesday 15 | Wednesday 16 | Thursday 17 | Friday 18 | Saturday 19 | |||||||||||||||
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) | SW 18 | SW 17 | SW 16 | SW 16 | SW 16 | SW 15 | SW 15 | SW 15 | SW 15 | SW 15 | SSW 15 | SSW 15 | SSW 14 | SSW 14 | SSW 14 | SSW 14 | SSW 14 | SSW 14 | SSW 14 | SW 14 | SW 17 |
Wave Graph  | |||||||||||||||||||||
 kJ | 1019 | 1818 | 1367 | 976 | 976 | 927 | 1019 | 967 | 967 | 869 | 974 | 1102 | 947 | 1042 | 883 | 710 | 569 | 561 | 553 | 463 | 874 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | off | off | off | off | off | off | off | cross-off | off | off | cross-off | off | off | cross-off | off | off | cross-off | off | cross-off | cross-off | off |
High Tide | 11:32AM1.89m | 11:43PM2.09m | 12:06PM1.77m | 00:08AM2.10m | 12:37PM1.62m | 00:32AM2.05m | 1:07PM1.45m | 00:57AM1.97m | 1:35PM1.28m | 1:21AM1.85m | 2:05PM1.12m | 1:48AM1.72m | 2:52PM0.97m | 2:21AM1.58m | |||||||
Low Tide | 5:34PM0.34m | 6:07AM0.24m | 5:56PM0.43m | 6:40AM0.26m | 6:16PM0.53m | 7:14AM0.32m | 6:35PM0.62m | 7:49AM0.43m | 6:49PM0.72m | 8:30AM0.57m | 6:55PM0.82m | 9:28AM0.71m | 6:27PM0.91m | ||||||||
 | |  | | |  | | |  | | | | | | | | | | | | | |
 | 6:13 | — | — | 6:13 | — | — | 6:11 | — | — | 6:11 | — | — | 6:11 | — | — | 6:09 | — | — | 6:09 | — | — |
 | — | 6:15 | — | — | 6:15 | — | — | 6:15 | — | — | 6:14 | — | — | 6:14 | — | — | 6:14 | — | — | 6:14 | — |
mm | — | — | — | — | — | — | — | — | 1 | — | — | 2 | — | — | — | — | — | — | — | — | — |
Temp °C | 27 | 27 | 25 | 27 | 27 | 25 | 26 | 26 | 25 | 26 | 26 | 25 | 26 | 27 | 25 | 26 | 27 | 25 | 27 | 27 | 25 |
Feels °C | 29 | 28 | 27 | 28 | 27 | 26 | 27 | 26 | 27 | 27 | 26 | 27 | 27 | 29 | 27 | 28 | 29 | 28 | 30 | 30 | 28 |
Swell 1 Height (m) Direction Period (s) | SW 18 | SW 17 | SW 16 | SW 16 | SW 16 | SW 15 | SW 15 | SW 15 | SW 15 | SW 15 | SSW 15 | SSW 15 | SSW 14 | SSW 14 | SSW 14 | SSW 14 | SSW 14 | SSW 14 | SSW 14 | SW 14 | SW 17 |
| kJ | 1019 | 1818 | 1367 | 976 | 976 | 927 | 1019 | 967 | 967 | 869 | 974 | 1102 | 947 | 1042 | 883 | 710 | 569 | 561 | 553 | 463 | 874 |
Swell 2 Height (m) Direction Period (s) | SW 15 | NE 8 | NE 7 | NE 7 | NE 7 | NE 7 | NE 7 | NE 7 | NE 7 | SE 6 | NE 7 | NE 7 | SSW 8 | SSW 8 | SE 5 | SE 5 | SW 16 | SW 20 | SW 18 | SW 18 | SW 13 |
| kJ | 485 | 15 | 8 | 8 | 9 | 8 | 7 | 9 | 8 | 59 | 8 | 8 | 36 | 48 | 29 | 16 | 65 | 98 | 164 | 263 | 249 |
Swell 3 Height (m) Direction Period (s) | NE 7 | — | — | — | — | — | — | — | — | NE 7 | — | NE 7 | SSW 18 | ENE 6 | NE 6 | NE 6 | SSW 21 | NE 6 | SE 5 | NE 6 | SE 6 |
| kJ | 19 | — | — | — | — | — | — | — | — | 7 | — | 8 | 127 | 4 | 2 | 2 | 43 | 1 | 8 | 1 | 23 |
Wind waves Height (m) Direction Period (s) | SE 6 | SE 6 | SE 6 | SE 6 | SE 7 | SE 6 | SE 6 | SE 6 | SE 6 | — | SSE 6 | SE 5 | SE 6 | SE 6 | ESE 5 | SE 5 | SE 6 | SE 5 | SE 5 | SE 5 | ESE 6 |
| kJ | 56 | 47 | 102 | 109 | 109 | 84 | 44 | 54 | 67 | — | 40 | 83 | 72 | 53 | 58 | 28 | 19 | 18 | 19 | 13 | 25 |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | 0 | 1 | 0 | 0 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 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.
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