Surf Forecasts:
Shipwrecks (Nusa Lembongan) surf forecast from 19 Aug 2026:
- Best quality surf: Thursday 20 Aug, 2AM (local time) - 8ft (2.4m), 17s period, SSW swell with offshore winds.
- Most powerful swell: Thursday 20 Aug, 2AM (local time) - 8ft (2.4m), 17s period, SSW swell with 3,224 kJ wave energy.
- Next surfable swell (1★+): Thursday 20 Aug, 2AM (local time) - 8ft (2.4m), 17s period with SSW swell.
Best Forecast Surf Conditions for Shipwrecks (Nusa Lembongan) this week:
The surf forecast for Shipwrecks (Nusa Lembongan) over the next 16 days: The first swell (rated 1 star or higher) is forecast to arrive on Thursday (Aug 20) at 2AM. The primary swell is predicted to be 2.4m and 17s period with a secondary swell of 0.8m and 6s. The wind is predicted to be offshore as the swell arrives.
The most powerful waves expected at Shipwrecks (Nusa Lembongan) in the next 16 days are 2.4m 17s and forecast to arrive on Thursday (Aug 20) at 2AM. Winds are predicted to be offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.5m 6s period and expected on Saturday (Aug 22) at 2AM.
| Wave Type | Time (WITA) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 2AM (Thu 20th Aug) | 8ft (2.4m) 17s |
| Best Surf | 2AM (Thu 20th Aug) | 8ft (2.4m) 17s |
| Most Powerful | 2AM (Thu 20th Aug) | 8ft (2.4m) 17s |
Table - best surf conditions forecast for Shipwrecks (Nusa Lembongan) over the next 16 days.
The Lowdown
Alright, Rusty here. Let’s break it down for Shipwrecks on Nusa Lembongan. Water temp is 80°F, about normal for this time of year, nothing out of the ordinary.
We’re looking at a solid run of southern hemi groundswell starting Wednesday the 19th. The first few days are the highlight: 2.2m (7ft) of SSW swell at 18 seconds on Wednesday afternoon, with a clean offshore ESE breeze at 20 km/h (12 mph). That’s a proper reef wave – powerful, long lines, but only for experienced surfers. The energy’s strong (3116 combined energy). Thursday the 20th morning is even better with a glassy 15 km/h (9 mph) offshore wind and the same 2.2m (7ft) swell. That’s the cream of the crop.
Friday the 21st morning drops to 1.2m (4ft) but still has that 18-second period and offshore wind, so it’s clean and fun. The afternoon picks up size again but gets cross-off. Saturday the 22nd morning is another excellent session with 1.9m (6ft) at 16 seconds and offshore winds. The pattern holds with mornings cleaner than afternoons.
From Sunday the 23rd, the swell eases to 1.7m (6ft) with a 15-second period, still good but less grunt. The afternoons get cross-off from Monday the 24th through Tuesday the 25th. By Wednesday the 26th, swell drops to 1.4m (5ft) and the energy fades, but the mornings stay clean. Thursday the 27th afternoon is a gem: only 0.9m (3ft) but with a very long 20-second period and clean conditions. That’s a small but beautifully shaped wave.
Then we get a second pulse on Friday the 28th morning: 2.0m (7ft) of SSW swell at 16 seconds, light S winds at 10 km/h (6 mph), and clean. The energy jumps back up to 2147. The rest of the run holds through the end of August and into early September, with swells between 1.4m (5ft) and 1.9m (6ft) and mostly clean conditions.
Shipwrecks is a reef break, sheltered from the south, and it’s consistent. It’s advanced only, so don’t bring the beginners. Crowds can be an issue sometimes, but with this much swell you’ll get your share. The best is the first two days and the Friday 28th morning pulse. The small, super-long-period Thursday 27th afternoon is a hidden gem.
Rusty, out.
Short Range ForecastMostly dry. Warm (max 26°C on Thu afternoon, min 24°C on Wed night). Wind will be generally light. | Days 5-7 Weather SummarySome drizzle, heaviest during Mon morning. Warm (max 26°C on Sun afternoon, min 24°C on Sat night). Wind will be generally light. | ||||||||||||||||||
Thursday 20 | Friday 21 | Saturday 22 | Sunday 23 | Monday 24 | Tuesday 25 | ||||||||||||||
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 17 | SSW 16 | SW 16 | SSW 16 | SSW 18 | SSW 17 | SSW 16 | SSW 16 | SSW 16 | SSW 15 | SSW 15 | SSW 15 | SSW 18 | SSW 16 | SSW 16 | SSW 14 | SSW 16 | SSW 16 | SSW 15 |
Wave Graph  | |||||||||||||||||||
 kJ | 3224 | 2631 | 2173 | 1721 | 917 | 2488 | 2128 | 1811 | 1608 | 1412 | 1258 | 1087 | 887 | 1379 | 1241 | 874 | 909 | 1054 | 807 |
Wind (km/h) | |||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | off | off | off | off | off | cross-off | off | off | cross-off | off | off | cross-off | cross-off | cross-off | cross-off | off | off | cross-off | off |
High Tide | 2:17AM1.83m | 2:41PM1.11m | 2:50AM1.72m | 3:46PM0.94m | 3:39AM1.60m | 5:29AM1.52m | 7:26AM1.57m | 10:32PM1.25m | 8:30AM1.69m | 10:32PM1.36m | |||||||||
Low Tide | 9:20AM0.67m | 7:45PM0.79m | 10:35AM0.76m | 7:25PM0.88m | 1:36PM0.74m | 2:59PM0.61m | 3:32PM0.48m | 2:25AM1.12m | 3:57PM0.36m | 3:15AM0.99m | |||||||||
 |  | | | | | | | |  | | | |  | | | | | | |
 | — | 6:26 | — | — | 6:24 | — | — | 6:24 | — | — | 6:24 | — | — | 6:24 | — | — | 6:22 | — | — |
 | 6:16 | — | 6:16 | — | — | 6:16 | — | — | 6:16 | — | — | 6:16 | — | — | 6:16 | — | — | 6:16 | — |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | 1 | — | — | — | — | — |
Temp °C | 25 | 25 | 26 | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 26 | 25 | 25 | 25 | 25 | 25 | 25 | 25 |
Feels °C | 26 | 26 | 25 | 26 | 26 | 24 | 25 | 24 | 24 | 25 | 26 | 27 | 27 | 25 | 24 | 25 | 24 | 24 | 25 |
Swell 1 Height (m) Direction Period (s) | SSW 17 | SSW 16 | SW 16 | SSW 16 | SW 15 | SSW 17 | SSW 16 | SSW 16 | SSW 16 | SSW 15 | SSW 15 | SSW 15 | SSW 14 | SSW 16 | SSW 16 | SSW 14 | SSW 16 | SSW 16 | SSW 15 |
| kJ | 3224 | 2631 | 2173 | 1721 | 881 | 2488 | 2128 | 1811 | 1608 | 1412 | 1258 | 1087 | 886 | 1379 | 1241 | 874 | 909 | 1054 | 807 |
Swell 2 Height (m) Direction Period (s) | SE 6 | SE 7 | NE 7 | SE 6 | SSW 18 | NE 8 | SE 6 | SE 7 | NE 7 | SE 6 | SSW 20 | SSW 19 | SSW 18 | — | SW 20 | SW 18 | — | — | — |
| kJ | 54 | 61 | 14 | 79 | 917 | 9 | 120 | 86 | 8 | 36 | 395 | 708 | 887 | — | 60 | 154 | — | — | — |
Swell 3 Height (m) Direction Period (s) | NE 8 | NE 7 | — | NE 7 | NE 7 | — | — | — | S 26 | NE 7 | SE 6 | — | — | — | — | — | — | — | — |
| kJ | 31 | 19 | — | 8 | 12 | — | — | — | 13 | 7 | 31 | — | — | — | — | — | — | — | — |
Wind waves Height (m) Direction Period (s) | — | ESE 7 | SE 7 | SE 6 | SE 7 | SE 7 | ESE 6 | ESE 7 | SE 7 | — | — | SE 6 | SE 5 | SE 5 | SE 6 | SE 6 | SE 6 | SE 6 | SE 5 |
| kJ | — | 120 | 91 | 47 | 84 | 116 | 193 | 154 | 86 | — | — | 38 | 38 | 54 | 79 | 76 | 132 | 102 | 65 |
Nearest Offshore or Glassy | |||||||||||||||||||
Distance (km) | 0 | 0 | 0 | 0 | 0 | 2 | 0 | 0 | 2 | 0 | 0 | 2 | 2 | 2 | 2 | 0 | 0 | 2 | 0 |
Best forecast wave conditions in Nusa Lembongan - Bali | |||||||||||||||||||
Best forecast wave conditions in Indonesia | |||||||||||||||||||
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Information about the Shipwrecks (Nusa Lembongan) Surf forecast
The above surf forecast table for Shipwrecks (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 Shipwrecks (Nusa Lembongan) can be found by selecting the local surf guide option on the grey menu. Our Shipwrecks (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 (Shipwrecks (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 Shipwrecks (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.
Shipwrecks (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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