Surf Forecasts:
Tandjung-Lefts surf forecast from 15 Aug 2026:
- Most powerful swell: Wednesday 19 Aug, 11PM (local time) - 8ft (2.5m), 17s period, SSW swell with 3,770 kJ wave energy.
Best Forecast Surf Conditions for Tandjung-Lefts this week:
The most powerful waves expected at Tandjung-Lefts in the next 16 days are 2.5m 17s and forecast to arrive on Wednesday (Aug 19) at 11PM. Winds are predicted to be cross-onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.4m 7s period and expected on Wednesday (Aug 19) at 11AM.
| Wave Type | Time (WITA) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | - | - |
| Best Surf | - | - |
| Most Powerful | 11PM (Wed 19th Aug) | 8ft (2.5m) 17s |
Table - best surf conditions forecast for Tandjung-Lefts over the next 16 days.
The Lowdown
Alright folks, Rusty here. We’ve got a long stretch ahead for Tandjung-Lefts, and to be honest, it’s a bit of a mixed bag. The whole 16-day window is on the table, but the first week or so is gonna be a test of patience. The core issue is a persistent cross-onshore wind that’s going to mess with the surface. We do have some solid groundswell energy on the way, but it’s going to take a while for the stars to align for a proper session.
The water temp is around 80°, which is right on the money for this time of year – nothing unusual there.
Right out of the gate, Saturday the 15th has some size, with 7ft of SSW groundswell and a very long period of 17 seconds. The combined energy is a solid 2770, so there’s plenty of juice. But that ESE wind is blowing cross-on at 9 mph, and the report says it’s “fairly choppy”. It’s a consistent reef break, so there will be waves, but the quality is going to be ordinary. Sunday the 16th is similar: plenty of power (1933 energy) but the same cross-on breeze messing up the face. For the first few days, the conditions are just marginal. The wind has the upper hand.
Now, there’s a notable run of surf from around Monday the 17th into Tuesday the 18th; the swell drops off to around 4ft, so it’s smaller but still plagued by that cross-onshore wind. The energy levels drop too, down to around 800, so it's weak.
The big energy starts to build again around Wednesday the 19th with a 7ft SSW swell at 18 seconds, and the combined energy hits 3029. That’s a powerful, long-period groundswell. But again, we’ve got that moderate cross-onshore wind making it choppy. For a reef like this, an 18-second swell is generally a good sign for shape and power, but the wind is the killer.
The standout period looks like it could be the stretch from Thursday the 20th through to Friday the 21st. The swell holds strong at 8ft and 8ft on the 20th with 16-second periods, with energy readings over 3000. That’s a serious amount of water moving. If you are an advanced surfer, this is the size and power you want for a reef, but the winds are still cross-on. Conditions are “fairly choppy” or “choppy”. For most, it’s going to be a battle. The size is over 8ft, so this is definitely expert territory.
From Saturday the 22nd onwards, the surf quality drops off. The swell begins to fade, and the wind remains a stubborn cross-onshore breeze. The energy is lower, and the reports consistently say “poor surf conditions” through the end of the month. There’s a small pulse on Thursday the 27th afternoon with a spike to 6ft at 18 seconds from the SSW and 2326 energy, but that cross-onshore wind will still be there.
The real highlight, and the best chance for a good session, looks to be the last couple of days of the forecast. Friday the 28th has a 7ft SSW groundswell with 16-second period, and the wind is only a gentle 9 mph cross-on from the SE. The energy is 2402, which is solid. For the first time in a while, the wind is light enough that the surface might clean up a bit. Saturday the 29th afternoon has a really interesting shift: a 3ft swell from the SW with a massive 21-second period and 1685 energy. That’s a very long period, which is a quality sign for this kind of reef set-up, but the wind is still cross-on. Then Sunday the 30th piles on again with 7ft from the SSW at 18 seconds and a whopping 3152 energy. Again, the wind is the big question mark.
If I had to pick a single best bet, it would be the morning of Friday the 28th. The swell is a solid 7ft from the SSW, the period is a long 16 seconds for that proper groundswell drive, and the wind is the lightest cross-on we’ve seen in a while. The energy is moderate-to-strong (2402). It’s still not ideal with the cross-onshore, but it’s the best compromise of size, power, and cleanness in the entire outlook. For the rest, it’s a long wait.
Rusty.
Short Range ForecastMostly dry. Warm (max 26°C on Sat afternoon, min 24°C on Sat night). Wind will be generally light. | Days 5-7 Weather SummarySome drizzle, heaviest during Thu night. Warm (max 26°C on Tue afternoon, min 24°C on Tue night). Wind will be generally light. | |||||||||||||||||||
Sat 15 | Sunday 16 | Monday 17 | Tuesday 18 | Wednesday 19 | Thursday 20 | Friday 21 | ||||||||||||||
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 17 | SSW 16 | SSW 16 | SSW 15 | SSW 14 | SSW 14 | SSW 14 | SSW 18 | SSW 16 | SSW 16 | SSW 16 | SSW 18 | SSW 17 | SSW 17 | SSW 16 | SSW 16 | SSW 16 | SSW 14 | SSW 17 | SSW 16 |
Wave Graph | ||||||||||||||||||||
2703 | 2161 | 1919 | 1472 | 1061 | 778 | 668 | 454 | 770 | 1393 | 1169 | 3106 | 3467 | 3683 | 3113 | 2821 | 2023 | 1072 | 2465 | 2388 | |
Wind (km/h) | ||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | on | cross-on | cross-on | on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on |
High Tide | 00:04AM2.56m | 12:10PM2.50m | 00:33AM2.60m | 12:43PM2.32m | 1:02AM2.57m | 1:15PM2.11m | 1:30AM2.47m | 1:45PM1.87m | 1:58AM2.32m | 2:15PM1.64m | 2:29AM2.15m | 2:50PM1.42m | 3:08AM1.96m | |||||||
Low Tide | 5:49PM0.10m | 6:06AM0.30m | 6:17PM0.19m | 6:44AM0.32m | 6:44PM0.32m | 7:20AM0.40m | 7:09PM0.47m | 7:56AM0.53m | 7:31PM0.64m | 8:35AM0.69m | 7:51PM0.81m | 9:23AM0.87m | 8:06PM0.99m | |||||||
— | — | 6:28 | — | — | 6:28 | — | — | 6:26 | — | — | 6:26 | — | — | 6:26 | — | — | 6:26 | — | — | |
6:17 | — | — | 6:17 | — | — | 6:17 | — | — | 6:17 | — | — | 6:17 | — | — | 6:17 | — | — | 6:17 | — | |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 1 | — | — | 3 |
Temp °C | 26 | 25 | 26 | 26 | 25 | 25 | 26 | 25 | 26 | 26 | 25 | 25 | 26 | 25 | 26 | 26 | 25 | 26 | 26 | 25 |
Feels °C | 26 | 27 | 27 | 27 | 28 | 26 | 27 | 28 | 27 | 27 | 28 | 27 | 27 | 27 | 26 | 25 | 27 | 25 | 26 | 26 |
Swell 1 Height (m) Direction Period (s) | SSW 17 | SSW 16 | SSW 16 | SSW 15 | SSW 14 | SSW 14 | SSW 14 | SSW 13 | SSW 16 | SSW 16 | SSW 16 | SSW 18 | SSW 17 | SSW 17 | SSW 16 | SSW 16 | SSW 16 | SSW 14 | SSW 17 | SSW 16 |
2703 | 2161 | 1919 | 1472 | 1061 | 778 | 668 | 434 | 770 | 1393 | 1169 | 3106 | 3467 | 3683 | 3113 | 2821 | 2023 | 1072 | 2465 | 2388 | |
Swell 2 Height (m) Direction Period (s) | — | SE 5 | SE 5 | — | SE 5 | SE 5 | SSW 20 | SSW 18 | SSW 13 | SSW 21 | SSW 19 | NE 7 | NE 7 | SE 6 | NE 7 | NE 7 | NE 7 | SSW 18 | — | — |
— | 11 | 16 | — | 18 | 29 | 38 | 454 | 357 | 483 | 1055 | 12 | 18 | 30 | 19 | 14 | 8 | 832 | — | — | |
Swell 3 Height (m) Direction Period (s) | — | — | — | — | S 26 | SW 26 | SSW 24 | SE 6 | SSW 21 | — | SE 6 | — | — | NE 8 | — | — | — | NE 7 | — | — |
— | — | — | — | 13 | 26 | 55 | 25 | 705 | — | 27 | — | — | 20 | — | — | — | 7 | — | — | |
Wind waves Height (m) Direction Period (s) | SE 4 | — | — | SE 5 | ESE 6 | — | SE 6 | ESE 6 | SE 5 | SE 5 | ESE 6 | SE 5 | SE 6 | ESE 6 | SE 6 | SE 6 | SE 6 | SE 7 | SE 7 | SE 6 |
16 | — | — | 16 | 47 | — | 38 | 49 | 21 | 45 | 55 | 34 | 39 | 58 | 52 | 91 | 82 | 131 | 159 | 124 | |
Nearest Offshore or Glassy | ||||||||||||||||||||
Distance (km) | 11 | 15 | 11 | 11 | 15 | 11 | 14 | 12 | 11 | 14 | 15 | 11 | 15 | 15 | 11 | 15 | 15 | 11 | 18 | 15 |
Best forecast wave conditions in Sanur - Bali | ||||||||||||||||||||
Best forecast wave conditions in Indonesia | ||||||||||||||||||||
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Information about the Tandjung-Lefts Surf forecast
The above surf forecast table for Tandjung-Lefts provides essential information for determining whether the surfing conditions will be good over the next 16 days. A general guide to surfing at Tandjung-Lefts can be found by selecting the local surf guide option on the grey menu. Our Tandjung-Lefts 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 (Tandjung-Lefts) 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 Tandjung-Lefts 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.
Tandjung-Lefts is 7 km (4 miles) from Denpasar. If you plan a holiday in Sanur - Bali, look for hotels and other accommodation in Denpasar. Denpasar has rooms for a wide range of budgets as well as car hire and transport links.











