Surf Forecasts:
Kandui Left surf forecast from 22 Aug 2026:
- Best quality surf: Thursday 27 Aug, 7AM (local time) - 4.5ft (1.4m), 15s period, SW swell with cross-offshore winds.
- Most powerful swell: Monday 24 Aug, 1AM (local time) - 7ft (2.2m), 18s period, SSW swell with 2,897 kJ wave energy.
- Next surfable swell (1★+): Wednesday 26 Aug, 1AM (local time) - 5ft (1.5m), 14s period with SSW 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 Wednesday (Aug 26) at 1AM. The primary swell is predicted to be 1.5m and 14s period with a secondary swell of 0.2m and 8s. Another secondary swell of 0.9m and 7s is also forecast. The wind is predicted to be glassy as the swell arrives.
The most powerful waves expected at Kandui Left in the next 16 days are 2.2m 18s and forecast to arrive on Monday (Aug 24) at 1AM. 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+) | 1AM (Wed 26th Aug) | 5ft (1.5m) 14s |
| Best Surf | 7AM (Thu 27th Aug) | 4.5ft (1.4m) 15s |
| Most Powerful | 1AM (Mon 24th Aug) | 7ft (2.2m) 18s |
Table - best surf conditions forecast for Kandui Left over the next 16 days.
The Lowdown
Alright folks, Rusty here. Let’s talk about what’s cooking at Kandui Left.
Straight up, the next week and a half is a bit of a write-off. We’ve got a solid run of choppy, cross-onshore winds and a lot of marginal conditions. The water’s a warm 85°F, which is pretty much bang on average for this time of year, so no surprises there. But the wind is just not playing ball for clean waves.
Things start looking up around the end of the month. The real standout is shaping up for Monday, August 31st. The morning is glassy, absolute glass, with a clean 6ft swell from the SW. That’s a long-period groundswell (17 seconds), so the energy is proper. The combined energy is strong (2146). The afternoon is even better in size, with 7ft SW swell and glassy conditions again. The energy jumps to 2884. This is the clear pick of the bunch for the whole forecast – clean, powerful, and that reef is going to be firing.
The best of the best, though, looks like Tuesday, September 1st. The morning is glassy again with a solid 8ft SW swell. That’s big, pushing into expert-only territory, but the period is 18 seconds and the energy is massive (3864). If you’re experienced, this is the session to circle. The wind is light and glassy, so the waves will be as perfect as it gets. The afternoon is cross-shore, so morning is the call.
After that, we drop back into smaller, less consistent stuff with onshore winds creeping back in. The swell is still there, but quality drops off. The last highlight is a small window on Friday, September 4th, with a clean, cross-offshore wind and a 4ft SW swell. It’s small, but the conditions will be clean for a fun little session.
Kandui Left is a reef, and it’s fairly consistent, but it’s also a spot that draws a crowd. Given the quality of the 31st and 1st, expect it to be busy. It’s a world-class wave, so it’s worth it.
So, the long and short of it: wait out the choppy stuff. The magic happens from Monday, August 31st, through Tuesday, September 1st. That’s your window.
Rusty.
Short Range ForecastHeavy rain (total 29mm), heaviest during Mon night. Warm (max 29°C on Sat afternoon, min 26°C on Mon night). Wind will be generally light. | Days 4-6 Weather SummaryHeavy rain (total 49mm), heaviest during Tue night. Warm (max 27°C on Tue morning, min 25°C on Tue night). Wind will be generally light. | ||||||||||||||||||||
Saturday 22 | Sunday 23 | Monday 24 | Tuesday 25 | Wednesday 26 | Thursday 27 | Friday 28 | |||||||||||||||
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 16 | SSW 15 | SSW 14 | S 14 | SSW 14 | SSW 18 | SSW 16 | SSW 16 | SSW 15 | SSW 15 | SSW 14 | SSW 14 | SSW 13 | SSW 14 | SW 16 | SSW 19 | SSW 18 | SSW 16 | SSW 16 | SSW 15 | SSW 14 |
Wave Graph | |||||||||||||||||||||
2793 | 2140 | 1773 | 1731 | 949 | 2897 | 705 | 2339 | 1728 | 1728 | 1072 | 814 | 669 | 617 | 477 | 1410 | 2390 | 2318 | 2049 | 1571 | 961 | |
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-on | cross-on | cross-on | glassy | cross-on | cross-on | cross | cross | cross-on | cross | cross | cross-on | cross |
High Tide | 1:48PM0.49m | 2:42AM0.85m | 3:37PM0.51m | 3:51AM0.91m | 4:39PM0.58m | 4:43AM0.98m | 5:22PM0.67m | 5:23AM1.06m | 5:56PM0.77m | 5:58AM1.12m | 6:27PM0.86m | 6:29AM1.15m | 6:56PM0.96m | ||||||||
Low Tide | 6:09PM0.34m | 11:10AM0.39m | 7:39PM0.37m | 11:23AM0.32m | 9:13PM0.35m | 11:36AM0.26m | 10:20PM0.30m | 11:54AM0.19m | 11:09PM0.23m | 12:15PM0.13m | 11:51PM0.18m | 12:39PM0.08m | 00:30AM0.13m | ||||||||
6:24 | — | — | 6:22 | — | — | 6:22 | — | — | 6:22 | — | — | 6:22 | — | — | 6:22 | — | — | 6:22 | — | — | |
— | 6:27 | — | — | 6:27 | — | — | 6:27 | — | — | 6:25 | — | — | 6:25 | — | — | 6:25 | — | — | 6:25 | — | |
mm | — | — | 4 | — | — | 5 | 4 | 1 | 15 | 9 | 8 | 17 | 7 | — | 3 | 1 | — | 4 | 1 | — | 5 |
Temp °C | 28 | 29 | 28 | 28 | 28 | 28 | 27 | 28 | 27 | 27 | 27 | 27 | 27 | 27 | 27 | 27 | 27 | 27 | 27 | 27 | 27 |
Feels °C | 30 | 31 | 30 | 28 | 30 | 30 | 28 | 29 | 28 | 29 | 29 | 30 | 29 | 30 | 29 | 31 | 29 | 29 | 29 | 29 | 29 |
Swell 1 Height (m) Direction Period (s) | SSW 16 | SSW 15 | SSW 14 | S 14 | SSW 14 | SSW 18 | SSW 13 | SSW 16 | SSW 15 | SSW 15 | SSW 14 | SSW 14 | SSW 13 | SSW 14 | SW 16 | SSW 19 | SSW 18 | SSW 16 | SSW 16 | SSW 15 | SSW 14 |
2793 | 2140 | 1773 | 1731 | 889 | 2897 | 595 | 2339 | 1728 | 1728 | 1072 | 814 | 669 | 617 | 477 | 1410 | 2390 | 2318 | 2049 | 1571 | 961 | |
Swell 2 Height (m) Direction Period (s) | WNW 9 | WNW 9 | S 18 | SSW 19 | SSW 19 | S 18 | SSW 16 | WNW 10 | WNW 10 | WNW 9 | WNW 9 | WNW 8 | S 7 | SSE 8 | SSE 8 | SW 14 | SSE 8 | SSE 7 | SSE 7 | SSE 7 | SSE 7 |
9 | 7 | 225 | 627 | 949 | 759 | 705 | 10 | 9 | 8 | 7 | 7 | 112 | 159 | 101 | 667 | 96 | 69 | 65 | 52 | 63 | |
Swell 3 Height (m) Direction Period (s) | — | SSW 24 | SSW 22 | WNW 8 | SSW 16 | — | SW 19 | WNW 10 | W 8 | — | — | W 8 | SW 18 | SSW 24 | SSW 12 | SSE 8 | WNW 8 | WNW 7 | WNW 11 | S 20 | S 18 |
— | 55 | 265 | 7 | 50 | — | 96 | 10 | 1 | — | — | 1 | 82 | 55 | 264 | 101 | 6 | 5 | 11 | 67 | 56 | |
Wind waves Height (m) Direction Period (s) | — | — | — | SSE 6 | SSE 6 | — | SSE 5 | — | SSE 7 | S 7 | S 7 | SSE 7 | — | — | — | — | — | — | — | — | — |
— | — | — | 97 | 85 | — | 69 | — | 114 | 127 | 103 | 91 | — | — | — | — | — | — | — | — | — | |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 6 | 387 | 6 | 156 | 387 | 6 | 6 | 487 | 156 | 156 | 6 | 0 | 6 | 6 | 6 | 6 | 6 | 6 | 6 | 6 | 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.











