Surf Forecasts:
Kandui Left surf forecast from 29 Jul 2026:
- Best quality surf: Friday 31 Jul, 7AM (local time) - 4ft (1.2m), 17s period, SW swell with cross-offshore winds.
- Most powerful swell: Wednesday 5 Aug, 7PM (local time) - 5ft (1.5m), 19s period, SSW swell with 1,677 kJ wave energy.
- Next surfable swell (1★+): Friday 31 Jul, 7AM (local time) - 4ft (1.2m), 17s period with SW swell.
Best Forecast Surf Conditions for Kandui Left this week:
The surf forecast for Kandui Left over the next 16 days: The first swell (rated 1 star or higher) is forecast to arrive on Friday (Jul 31) at 7AM. The primary swell is predicted to be 1.2m and 17s period with a secondary swell of 1.0m and 13s. Another secondary swell of 0.8m and 7s is also forecast. The wind is predicted to be cross-offshore as the swell arrives.
The most powerful waves expected at Kandui Left in the next 16 days are 1.5m 19s and forecast to arrive on Wednesday (Aug 05) at 7PM. Winds are predicted to be cross-onshore at the time the swell arrives.
| Wave Type | Time (WIB) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 7AM (Fri 31st Jul) | 4ft (1.2m) 17s |
| Best Surf | 7AM (Fri 31st Jul) | 4ft (1.2m) 17s |
| Most Powerful | 7PM (Wed 5th Aug) | 5ft (1.5m) 19s |
Table - best surf conditions forecast for Kandui Left over the next 16 days.
The Lowdown
G’day, this is Rusty. Let’s break down what’s on the table for the next couple of weeks. It’s a slow start, but there’s some gold later if you’ve got the patience.
We’re talking about Kandui Left, a top-shelf reef break. The first few days are nothing to write home about. Water temp is about 85°F, which is normal for the season. There’s a small, long-period SW groundswell coming in, but the winds are mostly cross or cross-onshore, and the tide’s fighting us. The combined energy is moderate early on, reading around 609 to 1251, but the wave comment says it’s marginal. Crowds are a given, so the early week is a pass.
Sunday morning, August 2 is when things clean up. Swell sits around 4ft from the SSW, period about 15 seconds, and we get a light cross-offshore breeze from the ESE. It’s clean (combined energy 1474). Not huge, but rideable, and the reef will give you shape. This one’s for the experienced.
The real standout fires up from Tuesday morning, August 4. Glassy conditions with a slight air from the south, swell at 4ft from the SSW, 16-second period, energy at 1318. That’s a magic morning. But the pick is Thursday morning, August 6. Swell jumps to 7ft from the SSW, 16-second period, clean cross-offshore north wind at 9 mph. Combined energy hits 2693 – that’s strong energy, and it’s going to be pumping. This is for experts only. The long period means well-spaced, powerful sets, perfect for the reef.
Friday morning, August 7 is another beauty: 7ft from the SSW, 16-second period, light cross-offshore from the NNE, energy at 2059. Saturday morning, August 8 keeps the run going with 7ft from the S, clean again.
After August 10, the winds start turning onshore and choppy. The swell stays big, but the quality fades. By August 12 and 13, we’ve got strong to very strong energy (up to 4005), but the cross-onshore winds and chop make it a mess – more for kite-surfing than paddle boards.
Best bets: Sunday morning, August 2 for a warm-up, then lock in Thursday morning, August 6 and Friday morning, August 7 for the clean, powerful groundswell. Crowds are always part of the deal at Kandui, but if you’re there at first light, you’ll score.
Rusty.
Short Range ForecastHeavy rain (total 23mm), heaviest during Fri night. Warm (max 28°C on Wed morning, min 27°C on Wed morning). Wind will be generally light. | Days 4-6 Weather SummaryHeavy rain (total 25mm), heaviest during Sat night. Warm (max 28°C on Sat morning, min 26°C on Mon night). Wind will be generally light. | ||||||||||||||||||||
Wednesday 29 | Thursday 30 | Friday 31 | Saturday 1 | Sunday 2 | Monday 3 | Tuesday 4 | |||||||||||||||
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 15 | SSW 14 | SW 20 | SSW 19 | SSW 18 | SSW 18 | SW 17 | SSW 16 | SW 16 | SSW 17 | SSW 16 | SW 16 | SSW 15 | SSW 18 | SSW 16 | SSW 15 | SSW 14 | SSW 17 | SSW 16 | SSW 16 | SSW 15 |
Wave Graph  | |||||||||||||||||||||
 kJ | 334 | 362 | 392 | 904 | 975 | 1172 | 825 | 1652 | 1057 | 1383 | 1170 | 1018 | 770 | 781 | 1341 | 1024 | 943 | 708 | 915 | 1433 | 1258 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross | cross-on | cross | cross | cross-on | cross | cross | cross-on | cross | cross | cross-on | cross-off | cross-off | cross | cross-on | cross | cross-on | glassy | glassy | cross-on | cross-off |
High Tide | 6:52PM0.75m | 6:55AM1.17m | 7:25PM0.82m | 7:26AM1.18m | 7:56PM0.88m | 7:54AM1.17m | 8:26PM0.93m | 8:22AM1.13m | 8:56PM0.98m | 8:49AM1.07m | 9:28PM1.01m | 9:19AM0.99m | 10:05PM1.03m | ||||||||
Low Tide | 00:03AM0.18m | 1:15PM0.10m | 00:43AM0.15m | 1:42PM0.08m | 1:22AM0.15m | 2:09PM0.06m | 2:01AM0.15m | 2:38PM0.05m | 2:41AM0.17m | 3:07PM0.05m | 3:23AM0.20m | 3:39PM0.07m | |||||||||
 |  |  |  | | | | | | | | | | |  | | | | | | | |
 | 6:28 | — | — | 6:28 | — | — | 6:28 | — | — | 6:28 | — | — | 6:28 | — | — | 6:28 | — | — | 6:26 | — | — |
 | — | 6:30 | — | — | 6:30 | — | — | 6:30 | — | — | 6:30 | — | — | 6:30 | — | — | 6:30 | — | — | 6:30 | — |
mm | — | — | 2 | 1 | — | 1 | 1 | 5 | 13 | 2 | 2 | 5 | — | — | 4 | 3 | 4 | 5 | 3 | 6 | 7 |
Temp °C | 28 | 28 | 28 | 28 | 28 | 28 | 28 | 28 | 28 | 28 | 28 | 27 | 28 | 28 | 27 | 28 | 28 | 27 | 27 | 27 | 27 |
Feels °C | 31 | 30 | 31 | 31 | 30 | 31 | 31 | 31 | 31 | 32 | 30 | 29 | 31 | 32 | 31 | 31 | 31 | 32 | 31 | 30 | 31 |
Swell 1 Height (m) Direction Period (s) | SSW 15 | SSW 14 | SSW 14 | SSW 19 | SSW 18 | SSW 18 | S 13 | SSW 16 | SW 16 | SSW 17 | SSW 16 | SW 16 | SSW 15 | SSW 18 | SSW 16 | SSW 15 | SSW 14 | SSW 14 | SSW 16 | SSW 16 | SSW 15 |
| kJ | 334 | 362 | 342 | 904 | 975 | 1172 | 503 | 1652 | 1057 | 1383 | 1170 | 1018 | 770 | 781 | 1341 | 1024 | 943 | 561 | 915 | 1433 | 1258 |
Swell 2 Height (m) Direction Period (s) | SSE 9 | SSE 9 | SSE 8 | SSW 13 | SSW 13 | SSW 13 | SW 17 | WNW 10 | SSW 12 | WNW 10 | WNW 11 | SSW 19 | SSE 7 | SW 14 | WNW 10 | S 7 | SSE 6 | SSW 17 | SSW 13 | S 6 | S 6 |
| kJ | 146 | 113 | 99 | 282 | 219 | 215 | 825 | 20 | 113 | 18 | 22 | 283 | 115 | 482 | 18 | 89 | 55 | 708 | 362 | 40 | 39 |
Swell 3 Height (m) Direction Period (s) | SW 22 | SW 21 | SW 20 | SSE 8 | SSE 8 | WNW 11 | SW 22 | WNW 10 | WNW 10 | — | W 16 | WNW 10 | SSW 19 | SSE 7 | W 16 | WNW 9 | SW 18 | S 6 | SSE 6 | WNW 11 | WNW 10 |
| kJ | 129 | 224 | 392 | 65 | 58 | 22 | 118 | 38 | 19 | — | 5 | 22 | 589 | 99 | 5 | 16 | 80 | 39 | 41 | 40 | 78 |
Wind waves Height (m) Direction Period (s) | — | — | — | — | — | SSE 7 | SSE 7 | SSE 7 | SSE 7 | SSE 7 | SSE 7 | SSE 7 | — | — | SSE 7 | — | — | — | — | — | — |
| kJ | — | — | — | — | — | 54 | 43 | 56 | 83 | 79 | 105 | 108 | — | — | 105 | — | — | — | — | — | — |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 6 | 6 | 6 | 6 | 6 | 6 | 6 | 6 | 6 | 6 | 6 | 0 | 0 | 6 | 6 | 6 | 6 | 0 | 0 | 6 | 0 |
Best forecast wave conditions in Mentawi Islands | |||||||||||||||||||||
Best forecast wave conditions in Indonesia | |||||||||||||||||||||
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Information about the Kandui Left Surf forecast
The above surf forecast table for Kandui Left provides essential information for determining whether the surfing conditions will be good over the next 16 days. A general guide to surfing at Kandui Left can be found by selecting the local surf guide option on the grey menu. Our Kandui Left 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 (Kandui Left) 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 Kandui Left 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.
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