
Surf Forecasts:
Tandjung-Lefts surf forecast from 9 Aug 2026:
- Most powerful swell: Monday 10 Aug, 11PM (local time) - 10ft (3.0m), 17s period, SSW swell with 5,634 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 3.0m 17s and forecast to arrive on Monday (Aug 10) 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 0.3m 7s period and expected on Monday (Aug 17) at 8AM.
| Wave Type | Time (WITA) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | - | - |
| Best Surf | - | - |
| Most Powerful | 11PM (Mon 10th Aug) | 10ft (3.0m) 17s |
Table - best surf conditions forecast for Tandjung-Lefts over the next 16 days.
The Lowdown
Alright, Rusty here. Let’s break down what we’ve got.
Straight up, there’s a heap of energy in the water, but the wind is going to spoil a lot of it. For the first week and a half, it’s a constant cross-on breeze, so the waves are going to be messy. The standout feature is the massive swell energy – we’re talking strong to very strong (values between 3385 and 6045) for the first few days. This is not for beginners.
Tandjung-Lefts is the only spot on the menu, a heavy reef break for advanced surfers only. The water temp is 80.1°, which is about average for this time of year.
Starting Monday morning (August 10th), the swell is already 5.6 ft from the SSW with a very long 19-second period. That’s proper groundswell. The energy is huge (3385), but the 12 mph cross-on wind from the SE will chop it up. By Monday afternoon, it jumps to 9.8 ft from the SSW with an 18-second period and the energy rockets to 4753. It’s big, but messy.
Tuesday (August 11th) keeps the 9.8 ft SSW swell, still with that long 16-second period and cross-on wind. The energy stays massive (4447 to 6045). The size is over 8 ft, so it’s expert territory only. The cross-on wind is the killer here – it’s not going to be clean.
Wednesday (August 12th) drops a touch to 6.9 ft, but still with a solid 17-second period from the SSW. The energy is still moderate to strong (2683), but the wind stays cross-on.
This pattern of moderate to strong swell with cross-on wind continues all the way through to Sunday (August 16th). The swell hangs between 6.6 ft and 7.5 ft, with periods of 15 to 17 seconds. The one bright spot is Sunday morning (August 16th) where the wind shifts to just “on” from the ESE at 9 mph. It’s not glassy, but it’s the best wind direction we’ll see all week, with a 6.6 ft SSW swell. That’s probably the pick of the first week.
After that, from Monday (August 17th) things really drop off. The swell dips to 4.9 ft, the energy plummets to 970, and the conditions are labeled poor. We get a gap of a few days with very weak, marginal surf.
There’s a late pulse on Wednesday (August 19th) pushing back up to 7.9 ft from the SSW, but the wind is up to 16 mph cross-on, making it a complete mess with poor conditions.
For the second week, from around August 20th to the 25th, it’s a long run of moderate 6.2 ft to 8.2 ft SSW swells, but always with that nagging cross-on wind. The energy stays moderate (between 1476 and 3709). Nothing here is going to be clean or make you want to race out. The wind just never plays ball. It’s a frustrating outlook, honestly.
Short Range ForecastMostly dry. Warm (max 25°C on Mon morning, min 23°C on Mon night). Wind will be generally light. | Days 4-6 Weather SummaryMostly dry. Warm (max 25°C on Thu morning, min 23°C on Thu night). Wind will be generally light. | ||||||||||||||||||||
Monday 10 | Tuesday 11 | Wednesday 12 | Thursday 13 | Friday 14 | Saturday 15 | Sunday 16 | |||||||||||||||
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 19 | SSW 18 | SSW 17 | SSW 16 | SSW 16 | SSW 16 | SSW 17 | SSW 15 | SSW 18 | SSW 17 | S 16 | S 16 | SSW 16 | SSW 15 | SSW 14 | SSW 17 | SSW 17 | SSW 16 | SSW 16 | SSW 16 | SSW 14 |
Wave Graph | |||||||||||||||||||||
2159 | 4753 | 5592 | 4447 | 4129 | 2723 | 2544 | 1749 | 1464 | 2750 | 3649 | 3222 | 2247 | 1613 | 1143 | 2437 | 2703 | 2244 | 1919 | 1718 | 1204 | |
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 | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | on | cross-on | cross-on |
High Tide | 9:15PM1.57m | 8:23AM2.32m | 9:56PM1.81m | 9:24AM2.49m | 10:30PM2.04m | 10:12AM2.62m | 11:02PM2.26m | 10:55AM2.66m | 11:33PM2.44m | 11:34AM2.62m | 00:04AM2.56m | 12:10PM2.50m | 00:33AM2.60m | ||||||||
Low Tide | 2:39PM0.52m | 1:51AM1.14m | 3:31PM0.33m | 3:06AM0.93m | 4:11PM0.18m | 4:00AM0.70m | 4:47PM0.09m | 4:46AM0.50m | 5:19PM0.06m | 5:27AM0.37m | 5:49PM0.10m | 6:06AM0.30m | 6:17PM0.19m | ||||||||
6:30 | — | — | 6:30 | — | — | 6:30 | — | — | 6:28 | — | — | 6:28 | — | — | 6:28 | — | — | 6:28 | — | — | |
— | 6:17 | — | — | 6:17 | — | — | 6:17 | — | — | 6:17 | — | — | 6:17 | — | — | 6:17 | — | — | 6:17 | — | |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 25 | 25 | 24 | 24 | 25 | 24 | 24 | 25 | 24 | 25 | 25 | 24 | 24 | 25 | 24 | 25 | 25 | 24 | 26 | 26 | 25 |
Feels °C | 26 | 25 | 25 | 26 | 26 | 25 | 24 | 25 | 24 | 25 | 25 | 24 | 25 | 26 | 26 | 26 | 25 | 25 | 27 | 27 | 28 |
Swell 1 Height (m) Direction Period (s) | SSW 19 | SSW 18 | SSW 17 | SSW 16 | SSW 16 | SSW 16 | SSW 17 | SSW 15 | SSW 18 | SSW 17 | S 16 | S 16 | SSW 16 | SSW 15 | SSW 14 | SSW 17 | SSW 17 | SSW 16 | SSW 16 | SSW 16 | SSW 14 |
2159 | 4753 | 5592 | 4447 | 4129 | 2723 | 2544 | 1749 | 1464 | 2750 | 3649 | 3222 | 2247 | 1613 | 1143 | 2437 | 2703 | 2244 | 1919 | 1718 | 1204 | |
Swell 2 Height (m) Direction Period (s) | SSW 14 | — | — | — | SSW 19 | — | S 21 | S 19 | S 12 | — | — | SSW 24 | S 21 | S 21 | SSW 19 | — | — | SSE 5 | — | — | SE 5 |
1204 | — | — | — | 1860 | — | 36 | 118 | 594 | — | — | 54 | 231 | 229 | 1049 | — | — | 15 | — | — | 12 | |
Swell 3 Height (m) Direction Period (s) | — | — | — | — | — | — | SSW 21 | — | — | — | — | — | — | — | SSE 7 | — | — | — | — | — | — |
— | — | — | — | — | — | 86 | — | — | — | — | — | — | — | 30 | — | — | — | — | — | — | |
Wind waves Height (m) Direction Period (s) | SE 5 | — | — | — | SE 7 | SSE 7 | SE 5 | E 4 | ESE 5 | SSE 7 | SE 5 | — | SE 8 | SE 8 | — | SE 4 | SE 4 | — | SE 5 | SSE 5 | SE 5 |
22 | — | — | — | 56 | 30 | 17 | 5 | 17 | 88 | 28 | — | 70 | 57 | — | 19 | 19 | — | 11 | 15 | 21 | |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 15 | 18 | 12 | 18 | 18 | 15 | 15 | 15 | 15 | 18 | 18 | 11 | 11 | 18 | 11 | 18 | 18 | 11 | 11 | 15 | 11 |
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.











