
Surf Forecasts:
Kandui Left surf forecast from 12 Sep 2026:
- Most powerful swell: Sunday 13 Sep, 1AM (local time) - 8ft (2.4m), 18s period, SW swell with 3,559 kJ wave energy.
Best Forecast Surf Conditions for Kandui Left this week:
The most powerful waves expected at Kandui Left in the next 16 days are 2.4m 18s and forecast to arrive on Sunday (Sep 13) 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+) | - | - |
| Best Surf | - | - |
| Most Powerful | 1AM (Sun 13th Sep) | 8ft (2.4m) 18s |
Table - best surf conditions forecast for Kandui Left over the next 16 days.
The Lowdown
Alright, let’s talk about what’s coming down the pipe for the next sixteen days. It’s a bit of a waiting game, honestly. There’s swell, no doubt about it, but the wind is going to be a pain for a while. The magic window is definitely the later part of the run, from Monday the 21st through Thursday morning the 24th. Before that, expect a lot of choppy, windblown conditions.
We’re talking about Kandui Left, a proper reef break that’s fairly consistent and open to the swell. The water is sitting at 85°F, which is about normal for this time of year, so no need to dig out the 5/4.
Let’s get into it. Starting this Saturday the 12th, we’ve got a solid 7ft SW groundswell with a very long 19-second period, but a 9 mph SSE cross-onshore breeze is making it messy. The wave energy is strong (combined energy of all swells directed here: 3833), but the quality is poor. This pattern holds through the next week. Swell hangs between 5ft and 8ft, but constant cross or cross-onshore winds from the SSE and S, blowing up to 16 mph, are keeping things chopped up. This stretch is really for the die-hards, or honestly, might be better suited for a kite session with all that consistent wind and bump. The swell period drops from that very long 19 seconds to a more normal 14-16 seconds by mid-week, but the wind just won’t cooperate.
The morning of Sunday the 20th is a little teaser. The wind shifts to a cross-offshore ESE breeze at 16 mph, cleaning up a 7ft SSW swell at 16 seconds. The energy is still strong (2064). It’s a sign of things to come, but it’s still a moderate breeze.
Now, for the good stuff. Monday morning, the 21st, is a real standout. We’re looking at light, clean ESE winds at 6 mph (cross-offshore) with a clean 6ft SSW swell from 14 seconds. The combined energy is moderate to strong (1511). This is the session for experienced surfers to get some proper Kandui barrels.
Best Bet: Monday the 21st, morning. The light cross-offshore wind is going to make it glassy, and that 6ft of clean, lined-up SSW swell is exactly what this reef needs. It’s always a popular spot, so expect a crowd.
Tuesday the 22nd morning is also clean, with a very light ESE breeze and a 3ft groundswell from the SSW at 18 seconds. It’ll be small but incredibly clean, perfect for a longboard or a fish. The energy is moderate (1424).
Wednesday the 23rd morning is another absolute beauty. Glassy conditions with a 5ft SSW groundswell (16 seconds) and light offshore ESE winds (3 mph). This is as good as it gets. The lineup will be packed, though.
Thursday the 24th morning offers a glassy 4ft SW swell (14 seconds). Small but perfect conditions for a clean session.
After that, the wind gets a bit tricky again through the 27th, with building SW swell up to 7ft but with increasing cross-shore winds, so the quality fades. The second week is less certain, so if you want the cleanest waves, lock in that Monday the 21st to Wednesday the 23rd window.
Rusty.
Short Range ForecastHeavy rain (total 23mm), heaviest during Sat night. Warm (max 28°C on Sat afternoon, min 27°C on Sat afternoon). Wind will be generally light. | Days 5-7 Weather SummaryModerate rain (total 15mm), heaviest on Tue night. Warm (max 28°C on Tue afternoon, min 26°C on Wed night). Wind will be generally light. | |||||||||||||||||||
Sat 12 | Sunday 13 | Monday 14 | Tuesday 15 | Wednesday 16 | Thursday 17 | Friday 18 | ||||||||||||||
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) | SW 19 | SW 18 | SW 17 | SW 16 | SW 15 | SW 16 | SSW 16 | SSW 15 | SSW 15 | SW 15 | SSW 14 | SSW 14 | SSW 14 | SSW 14 | SSW 15 | SSW 14 | SSW 16 | SSW 15 | SSW 14 | SSW 14 |
Wave Graph | ||||||||||||||||||||
3072 | 3559 | 3010 | 2742 | 1788 | 1822 | 2007 | 1907 | 1529 | 1358 | 1126 | 1072 | 1191 | 1114 | 1356 | 710 | 1257 | 829 | 701 | 672 | |
Wind (km/h) | ||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-on | cross | cross | cross-on | cross | cross | cross-on | cross | cross | cross-on | cross-on | cross | cross-on | cross | cross | cross-on | cross | cross | cross-on | cross-on |
High Tide | 7:16PM1.18m | 7:27AM1.12m | 7:50PM1.21m | 8:01AM1.03m | 8:23PM1.20m | 8:32AM0.93m | 8:55PM1.15m | 9:01AM0.82m | 9:28PM1.07m | 9:26AM0.72m | 10:03PM0.98m | 9:46AM0.62m | 10:47PM0.89m | |||||||
Low Tide | 1:12AM0.05m | 1:20PM0.01m | 1:49AM0.06m | 1:47PM0.02m | 2:25AM0.09m | 2:14PM0.05m | 3:00AM0.15m | 2:42PM0.09m | 3:36AM0.22m | 3:11PM0.15m | 4:17AM0.29m | 3:44PM0.22m | ||||||||
— | — | 6:16 | — | — | 6:15 | — | — | 6:15 | — | — | 6:15 | — | — | 6:13 | — | — | 6:13 | — | — | |
6:22 | — | — | 6:21 | — | — | 6:21 | — | — | 6:21 | — | — | 6:20 | — | — | 6:20 | — | — | 6:20 | — | |
mm | — | 10 | 8 | 1 | — | — | — | 3 | 1 | — | 7 | 6 | 1 | — | — | 1 | — | — | — | 22 |
Temp °C | 28 | 27 | 28 | 28 | 27 | 28 | 28 | 27 | 27 | 28 | 27 | 27 | 27 | 27 | 27 | 28 | 27 | 28 | 27 | 27 |
Feels °C | 31 | 28 | 30 | 30 | 28 | 30 | 31 | 30 | 29 | 30 | 28 | 27 | 27 | 28 | 28 | 28 | 27 | 29 | 27 | 27 |
Swell 1 Height (m) Direction Period (s) | SW 19 | SW 18 | SW 17 | SW 16 | SW 15 | SW 16 | SSW 16 | SSW 15 | SSW 15 | SW 15 | SSW 14 | SSW 14 | SSW 14 | SSW 14 | SSW 15 | SSW 14 | SSW 16 | SSW 15 | SSW 14 | SSW 14 |
3072 | 3559 | 3010 | 2742 | 1788 | 1822 | 2007 | 1907 | 1529 | 1358 | 1126 | 1072 | 1191 | 1114 | 1356 | 710 | 1257 | 829 | 701 | 672 | |
Swell 2 Height (m) Direction Period (s) | SW 14 | — | W 19 | — | WSW 18 | W 17 | SSE 8 | SSE 8 | SSE 7 | W 10 | SSW 21 | SW 19 | SW 19 | SW 18 | WNW 11 | SSW 16 | W 9 | SSE 7 | W 9 | SW 18 |
606 | — | 30 | — | 30 | 23 | 128 | 99 | 78 | 2 | 45 | 133 | 133 | 375 | 37 | 458 | 43 | 86 | 43 | 327 | |
Swell 3 Height (m) Direction Period (s) | W 22 | — | W 19 | — | — | — | — | — | W 15 | W 15 | W 9 | W 8 | W 8 | W 8 | W 14 | W 10 | SW 21 | W 9 | SW 20 | WNW 8 |
36 | — | 30 | — | — | — | — | — | 5 | 4 | 2 | 1 | 1 | 5 | 4 | 51 | 18 | 42 | 97 | 24 | |
Wind waves Height (m) Direction Period (s) | SSE 9 | SSE 5 | SSE 6 | SSE 6 | SSE 5 | SSE 7 | — | — | — | SSE 7 | SSE 7 | SSE 6 | SSE 6 | SSE 6 | SSE 5 | SSE 6 | SSE 7 | — | SSE 7 | SSE 7 |
119 | 48 | 104 | 110 | 77 | 148 | — | — | — | 73 | 67 | 184 | 145 | 123 | 97 | 94 | 105 | — | 86 | 69 | |
Nearest Offshore or Glassy | ||||||||||||||||||||
Distance (km) | 6 | 156 | 6 | 387 | 6 | 6 | 6 | 6 | 6 | 6 | 156 | 6 | 387 | 6 | 6 | 387 | 6 | 6 | 322 | 156 |
Best forecast wave conditions in Mentawi Islands | ||||||||||||||||||||
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Header Global | ||||||||||||||||||||
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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.










