Surf Forecasts:
Kandui Left surf forecast from 11 Aug 2026:
- Best quality surf: Tuesday 18 Aug, 7AM (local time) - 7ft (2.1m), 17s period, SSW swell with cross-offshore winds.
- Most powerful swell: Tuesday 11 Aug, 10PM (local time) - 8ft (2.5m), 17s period, S swell with 3,718 kJ wave energy.
- Next surfable swell (1★+): Friday 14 Aug, 10AM (local time) - 8ft (2.4m), 16s period with S 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 (Aug 14) at 10AM. The primary swell is predicted to be 2.4m and 16s period with a secondary swell of 0.3m and 22s. 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 2.5m 17s and forecast to arrive on Tuesday (Aug 11) at 10PM. Winds are predicted to be cross-shore at the time the swell arrives.
| Wave Type | Time (WIB) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 10AM (Fri 14th Aug) | 8ft (2.4m) 16s |
| Best Surf | 7AM (Tue 18th Aug) | 7ft (2.1m) 17s |
| Most Powerful | 10PM (Tue 11th Aug) | 8ft (2.5m) 17s |
Table - best surf conditions forecast for Kandui Left over the next 16 days.
The Lowdown
Alright, Rusty here. Let’s talk about what’s on the menu at Kandui Left.
We’re looking at a 16-day window, and honestly, the opening days are a bit of a write-off. The surf is up, with a solid 8ft S swell rolling in on Tuesday the 11th, but that cross-shore wind is just messing it up, leaving a chop on the surface. The energy is pumping, reading 4696 (strong) on Tuesday morning, but the quality isn't there. It’s a frustrating start.
Things start to turn on Friday the 14th. A cleaner 8ft S swell (2927 energy) arrives with a cross-offshore breeze, finally giving us some clean faces. The water temp is a balmy 85°, right on the money for this time of year. This is where you want to be if you’re an experienced surfer; the size and power are real.
The standout, the one you’ve been waiting for, is Sunday the 16th. The swell drops a touch to 5ft from the S, but the wind goes glassy in the morning. Absolute perfection. The energy is still solid at 1315, and with that 15-second period, it’s got proper groundswell grunt. This is a reef break, so that long period will wrap in beautifully. It’s for experienced crew, and with the optimum SW direction guidance, the S swell is close enough to deliver. Expect a crowd here – the “always” tag is no joke, and for good reason.
After that, the forecast gets a bit mushy for a few days, but keep an eye on Thursday the 20th. Another pulse of 8ft SSW swell (3057 energy) is due in the morning with a cross-offshore breeze. That’s another clean, powerful session for the experts.
The very end of the run, on Wednesday the 26th, looks promising again. A smaller 6ft SSW swell (1473 energy) with glassy conditions in the morning. It’s smaller, but it’ll be a dream for the intermediate surfer who wants clean lines without the heavy stuff.
So, to sum it up: the first few days are a miss. The real magic is Sunday the 16th for that glassy, long-period groundswell, and Thursday the 20th for a bigger but still clean session. Everything else is a bit of a gamble with the wind.
Rusty out.
Short Range ForecastModerate rain (total 11mm), heaviest on Thu night. Warm (max 28°C on Tue morning, min 26°C on Thu night). Wind will be generally light. | Days 4-6 Weather SummaryHeavy rain (total 37mm), heaviest during Fri afternoon. Warm (max 27°C on Fri morning, min 26°C on Fri morning). Wind will be generally light. | ||||||||||||||||||||
Tuesday 11 | Wednesday 12 | Thursday 13 | Friday 14 | Saturday 15 | Sunday 16 | Monday 17 | |||||||||||||||
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) | S 17 | S 17 | S 16 | S 16 | S 16 | S 16 | S 14 | S 18 | S 17 | S 16 | S 15 | S 14 | S 14 | S 13 | S 15 | S 15 | S 15 | SSW 14 | SSW 14 | SSW 14 | SW 21 |
Wave Graph  | |||||||||||||||||||||
 kJ | 3678 | 3921 | 2768 | 2413 | 2002 | 1953 | 1451 | 1946 | 2316 | 2824 | 2255 | 1630 | 1161 | 865 | 1344 | 1070 | 957 | 724 | 651 | 512 | 1051 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross | cross-on | cross-on | cross | cross-on | cross-on | cross | cross-on | cross | cross-off | cross-off | cross-off | cross-off | cross | cross | glassy | cross-on | cross | cross-off | cross-off | cross |
High Tide | 5:32PM0.75m | 5:46AM1.27m | 6:20PM0.86m | 6:32AM1.31m | 7:03PM0.97m | 7:14AM1.30m | 7:43PM1.05m | 7:53AM1.24m | 8:22PM1.11m | 8:30AM1.15m | 9:00PM1.12m | 9:05AM1.03m | 9:38PM1.10m | ||||||||
Low Tide | 10:52PM0.15m | 12:22PM0.05m | 11:50PM0.09m | 12:58PM0.01m | 00:40AM0.06m | 1:31PM-0.01m | 1:26AM0.06m | 2:01PM-0.01m | 2:09AM0.08m | 2:31PM0.02m | 2:50AM0.13m | 2:59PM0.05m | 3:30AM0.20m | ||||||||
 |  |  | | |  | | | |  | | | | | | | |  | | | | |
 | 6:26 | — | — | 6:26 | — | — | 6:26 | — | — | 6:26 | — | — | 6:26 | — | — | 6:24 | — | — | 6:24 | — | — |
 | — | 6:29 | — | — | 6:29 | — | — | 6:29 | — | — | 6:29 | — | — | 6:28 | — | — | 6:28 | — | — | 6:28 | — |
mm | — | — | — | — | — | 3 | — | — | 8 | 6 | 6 | 4 | 4 | 1 | 5 | 1 | 2 | 8 | — | — | 5 |
Temp °C | 28 | 28 | 28 | 28 | 28 | 28 | 28 | 28 | 28 | 27 | 27 | 27 | 27 | 27 | 27 | 27 | 27 | 27 | 27 | 28 | 27 |
Feels °C | 29 | 28 | 29 | 30 | 30 | 30 | 30 | 30 | 31 | 31 | 29 | 32 | 30 | 31 | 31 | 31 | 30 | 29 | 29 | 31 | 30 |
Swell 1 Height (m) Direction Period (s) | S 17 | S 17 | S 16 | S 16 | S 16 | S 16 | S 14 | S 18 | S 17 | S 16 | S 15 | S 14 | S 14 | S 13 | S 15 | S 15 | S 15 | SSW 14 | SSW 14 | SSW 14 | SSW 18 |
| kJ | 3678 | 3921 | 2768 | 2413 | 2002 | 1953 | 1451 | 1946 | 2316 | 2824 | 2255 | 1630 | 1161 | 865 | 1344 | 1070 | 957 | 724 | 651 | 512 | 887 |
Swell 2 Height (m) Direction Period (s) | SSW 19 | WNW 8 | SW 18 | WNW 9 | S 21 | S 20 | S 18 | S 11 | WNW 11 | SSW 22 | SSW 20 | SW 16 | SSW 17 | S 16 | SW 16 | SW 15 | SW 15 | W 7 | SSW 19 | SSW 19 | SSW 13 |
| kJ | 1004 | 14 | 455 | 8 | 79 | 276 | 784 | 655 | 12 | 91 | 267 | 203 | 516 | 438 | 295 | 227 | 212 | 57 | 148 | 329 | 475 |
Swell 3 Height (m) Direction Period (s) | WNW 8 | W 10 | WNW 8 | W 20 | WNW 9 | WNW 10 | WNW 10 | SW 15 | SSW 23 | WNW 11 | WNW 11 | SSW 20 | S 18 | SW 16 | WNW 10 | WNW 10 | WNW 9 | SW 26 | WNW 6 | WNW 9 | SW 21 |
| kJ | 14 | 2 | 7 | 7 | 8 | 9 | 11 | 54 | 53 | 12 | 12 | 298 | 231 | 302 | 10 | 18 | 17 | 26 | 10 | 30 | 1051 |
Wind waves Height (m) Direction Period (s) | — | — | — | — | — | SSE 4 | — | — | S 11 | — | — | — | — | — | — | — | — | — | — | — | — |
| kJ | — | — | — | — | — | 21 | — | — | 505 | — | — | — | — | — | — | — | — | — | — | — | — |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 6 | 387 | 156 | 9 | 9 | 9 | 9 | 33 | 9 | 0 | 2 | 0 | 0 | 6 | 6 | 0 | 6 | 9 | 0 | 0 | 6 |
Best forecast wave conditions in Mentawi Islands | |||||||||||||||||||||
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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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