
Surf Forecasts:
Kandui Left surf forecast from 3 Sep 2026:
- Best quality surf: Friday 4 Sep, 10AM (local time) - 4.5ft (1.3m), 13s period, SSW swell with cross-offshore winds.
- Most powerful swell: Wednesday 9 Sep, 1AM (local time) - 5.5ft (1.7m), 16s period, SSW swell with 1,466 kJ wave energy.
- Next surfable swell (1★+): Friday 4 Sep, 10AM (local time) - 4.5ft (1.3m), 13s 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 Friday (Sep 04) at 10AM. The primary swell is predicted to be 1.3m and 13s period with a secondary swell of 1.0m and 8s. 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 1.7m 16s and forecast to arrive on Wednesday (Sep 09) 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+) | 10AM (Fri 4th Sep) | 4.5ft (1.3m) 13s |
| Best Surf | 10AM (Fri 4th Sep) | 4.5ft (1.3m) 13s |
| Most Powerful | 1AM (Wed 9th Sep) | 5.5ft (1.7m) 16s |
Table - best surf conditions forecast for Kandui Left over the next 16 days.
The Lowdown
G’day, Rusty here, and we’ve got a solid run of swell lining up for Kandui Left. This is a classic reef setup, and it’s exposed to the SW, so when that direction lights up, this place can really fire. The water is sitting at 85°F right now, which is about 1°F warmer than average for this time of year, so nothing out of the ordinary, just your usual tropical warmth.
We kick things off on Thursday, 3rd September, but don’t get too excited yet. The swell is 5ft from the SW with a 14-second period, but the wind is cross-shore from the SE at 9 mph, and it’s bringing a bit of chop. The combined energy is pumping at 1097, but the conditions are messy, so it’s not the day to paddle out. Friday morning, 4th September, sees a slight drop in size to 4ft from the SSW, but the wind goes light and cross-off from the ESE at 6 mph, cleaning things right up. That’s a window of clean surf, but the energy’s down to 697, so it’s on the weaker side. Saturday and Sunday, 5th and 6th September, are a write-off with strengthening cross-shore winds and lumpy chop, despite the swell holding around 4ft to 5ft.
The real standout comes on Saturday, 12th September. The morning brings 5ft from the SW with a 14-second period, and the wind is light and cross-off from the east at 6 mph, giving us clean, glassy conditions. The energy is solid at 1318, and the afternoon pushes it further with 4ft from the SW, a 19-second period, and a massive 2243 energy reading. That’s groundswell with serious push, and the light cross-off breeze keeps it smooth. This is the best window of the whole run—long walls, clean faces, and plenty of power. It’s not for beginners though, as the size is over 5ft, and with that long period, it’ll be barrelling on the reef. Crowds are always a factor here, so expect company.
Tuesday, 15th September, is another cracker, especially the morning. The swell is 7ft from the SSW with a 16-second period, and the wind is dead calm, glassy. The energy is 2266, and it’s clean perfection. This is for experienced surfers only—over 8ft on the afternoon, so it gets big. The following days, Wednesday 16th through Friday 18th September, keep the momentum going with clean, glassy conditions and solid SW groundswell around 6ft to 7ft. The winds go light and offshore, then glassy, and the energy stays high, between 1452 and 2638. These are expert-level waves, but if you’re up for it, the setup is world-class.
So, to sum it up: the first week is a bit of a wash with messy winds, but Saturday 12th September is the absolute standout, with Tuesday 15th and the cleaner days after that running a close second. That’s the call for Kandui Left—get in the water when it’s clean, and you’ll be rewarded.
Rusty.
Short Range ForecastHeavy rain (total 20mm), heaviest during Thu morning. Warm (max 28°C on Thu morning, min 26°C on Fri night). Winds increasing (light winds from the ESE on Fri morning, fresh winds from the SE by Sat night). | Days 4-6 Weather SummaryHeavy rain (total 29mm), heaviest during Tue night. Warm (max 28°C on Sun morning, min 27°C on Sun afternoon). Winds decreasing (fresh winds from the SSE on Sun afternoon, light winds from the S by Tue afternoon). | ||||||||||||||||||||
Thursday 3 | Friday 4 | Saturday 5 | Sunday 6 | Monday 7 | Tuesday 8 | Wednesday 9 | |||||||||||||||
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) | SW 14 | SW 14 | SW 14 | SSW 13 | SSW 13 | SSW 13 | SSW 17 | SSW 17 | SSW 18 | SSW 16 | S 18 | SSW 15 | SSW 14 | SSW 14 | SSE 9 | SSW 18 | S 18 | SSW 16 | SSW 15 | SSW 15 | SSW 18 |
Wave Graph | |||||||||||||||||||||
928 | 915 | 822 | 581 | 458 | 346 | 958 | 665 | 515 | 1016 | 404 | 627 | 660 | 490 | 427 | 959 | 653 | 1466 | 1010 | 857 | 497 | |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross | cross-on | cross | cross-off | cross-on | cross | cross | cross | cross | cross | cross | cross | cross | cross-on | cross | cross | cross-on | cross | cross | cross-on | cross |
High Tide | 10:18PM1.09m | 10:12AM0.69m | 11:20PM1.03m | 11:19AM0.58m | 00:51AM0.99m | 1:44PM0.54m | 2:31AM1.01m | 3:31PM0.61m | 3:47AM1.07m | 4:35PM0.73m | 4:45AM1.15m | 5:22PM0.87m | |||||||||
Low Tide | 3:37PM0.09m | 4:47AM0.25m | 4:19PM0.15m | 5:59AM0.33m | 5:14PM0.23m | 7:47AM0.35m | 6:36PM0.30m | 9:44AM0.29m | 8:24PM0.31m | 10:43AM0.21m | 9:54PM0.26m | 11:23AM0.13m | 10:59PM0.18m | ||||||||
6:20 | — | — | 6:18 | — | — | 6:18 | — | — | 6:18 | — | — | 6:18 | — | — | 6:18 | — | — | 6:16 | — | — | |
— | 6:23 | — | — | 6:23 | — | — | 6:23 | — | — | 6:22 | — | — | 6:22 | — | — | 6:22 | — | — | 6:22 | — | |
mm | 5 | 1 | 4 | 2 | 2 | 5 | 1 | — | — | 1 | 1 | 2 | 3 | 2 | 3 | 5 | 3 | 9 | 10 | 7 | 13 |
Temp °C | 28 | 28 | 28 | 28 | 28 | 27 | 27 | 28 | 27 | 28 | 27 | 27 | 27 | 27 | 27 | 27 | 27 | 27 | 27 | 27 | 27 |
Feels °C | 30 | 30 | 32 | 32 | 32 | 30 | 29 | 29 | 26 | 28 | 26 | 26 | 27 | 28 | 27 | 29 | 31 | 28 | 29 | 29 | 29 |
Swell 1 Height (m) Direction Period (s) | SW 14 | SW 14 | SW 14 | SSW 13 | SSW 13 | SSW 13 | SSW 17 | SSW 17 | SSW 14 | SSW 16 | SSW 14 | SSW 15 | SSW 14 | SSW 14 | SW 13 | SSW 18 | S 18 | SSW 16 | SSW 15 | SSW 15 | SSW 14 |
928 | 915 | 822 | 581 | 458 | 346 | 958 | 665 | 515 | 1016 | 378 | 627 | 660 | 490 | 178 | 959 | 653 | 1466 | 1010 | 857 | 494 | |
Swell 2 Height (m) Direction Period (s) | W 16 | WNW 8 | NW 8 | SSE 8 | SSW 17 | SSW 16 | NW 9 | SSW 13 | SSW 18 | S 20 | S 18 | S 16 | SSW 21 | SSW 20 | S 13 | SSW 12 | SSW 16 | SSE 15 | SSE 14 | W 10 | SSW 18 |
20 | 6 | 2 | 110 | 99 | 273 | 3 | 257 | 443 | 268 | 404 | 325 | 90 | 256 | 168 | 172 | 566 | 42 | 63 | 2 | 497 | |
Swell 3 Height (m) Direction Period (s) | W 16 | — | — | WNW 8 | WNW 8 | WNW 8 | W 13 | WNW 8 | S 21 | W 11 | SSW 16 | S 23 | W 10 | SSE 18 | SSW 18 | SSE 16 | SSW 12 | — | W 10 | — | SW 15 |
20 | — | — | 6 | 6 | 6 | 4 | 7 | 36 | 9 | 295 | 11 | 2 | 30 | 214 | 49 | 129 | — | 2 | — | 106 | |
Wind waves Height (m) Direction Period (s) | SSE 6 | SSE 7 | SSE 8 | — | SSE 8 | SSE 7 | SSE 7 | SSE 7 | SSE 6 | SSE 7 | SSE 7 | SSE 8 | SSE 8 | SSE 8 | SSE 9 | SSE 9 | SSE 9 | SSE 9 | SSE 9 | SSE 11 | SSE 10 |
129 | 117 | 123 | — | 107 | 104 | 142 | 155 | 162 | 249 | 334 | 373 | 404 | 414 | 427 | 329 | 287 | 329 | 424 | 586 | 377 | |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 6 | 6 | 6 | 0 | 6 | 4 | 6 | 6 | 6 | 6 | 387 | 6 | 6 | 387 | 6 | 6 | 6 | 6 | 6 | 6 | 6 |
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.










