
Surf Forecasts:
Kandui Left surf forecast from 17 Jul 2026:
- Best quality surf: Monday 20 Jul, 10AM (local time) - 6ft (1.9m), 17s period, SSW swell with cross-offshore winds.
- Most powerful swell: Monday 20 Jul, 10AM (local time) - 6ft (1.9m), 17s period, SSW swell with 2,164 kJ wave energy.
- Next surfable swell (1★+): Friday 17 Jul, 7PM (local time) - 4.5ft (1.4m), 15s 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 17) at 7PM. The primary swell is predicted to be 1.4m and 15s period with a secondary swell of 0.8m and 7s. 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 1.9m 17s and forecast to arrive on Monday (Jul 20) at 10AM. Winds are predicted to be cross-offshore at the time the swell arrives.
| Wave Type | Time (WIB) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 7PM (Fri 17th Jul) | 4.5ft (1.4m) 15s |
| Best Surf | 10AM (Mon 20th Jul) | 6ft (1.9m) 17s |
| Most Powerful | 10AM (Mon 20th Jul) | 6ft (1.9m) 17s |
Table - best surf conditions forecast for Kandui Left over the next 16 days.
The Lowdown
Alright, Rusty here. Let's chew the fat on what's coming.
We're looking at Kandui Left, and the water is a warm 86°, which is about 1° above the usual. Not a massive anomaly, just your standard warm tropical feel.
The first few days are a bit of a slow burn. Friday the 17th is a washout with messy cross-shore wind. Saturday the 18th is the first real chance to get wet, with glassy conditions in the morning and a clean cross-off breeze in the afternoon. The swell is a modest 4ft from the SW, with moderate energy (729). It's a mellow start, but the windows are clean.
Now, here's the one that gets the heart pumping. Monday the 20th. We've got a solid 6ft SSW groundswell with a very long 17-second period, and the energy is strong (2218). The morning session is clean with a light cross-off breeze. This is excellent surf for experienced surfers – the kind of day where the ocean feels heavy and purposeful. That long period will make it a bit more lined up, which is pure magic on this reef.
The middle of the week gets a bit lumpy and cross-shore, with some choppy faces. The swell drops a bit, but it's not a total loss.
Fast forward to the end of the month and into August, and we've got a serious bomb. The 30th of July starts it off with a 6ft, 20-second SW groundswell and glassy conditions. The energy is very strong (2952). Then the 31st of July and the 1st of August are looking like the real deal. We're talking 7ft to 8ft of SW groundswell, glassy or light offshore wind, and very strong wave energy (up to 3627). This is expert juice, and it's going to be a legendary run. The 1st of August afternoon sees 8ft and glassy conditions, with energy at 3066. That's the pick of the pack.
The bottom line: The early part of the outlook is for the patient surfer, but Monday the 20th is a serious session. The absolute standout, the one that gets you out of bed before dawn, is the run from the 30th of July through to the 1st of August. That's big, clean, powerful Kandui Left at its absolute finest. Don't miss it.
Rusty.
Short Range ForecastHeavy rain (total 42mm), heaviest during Sat night. Warm (max 29°C on Fri morning, min 25°C on Sat night). Winds increasing (calm on Fri night, fresh winds from the W by Sun afternoon). | Days 4-6 Weather SummaryHeavy rain (total 29mm), heaviest during Mon night. Warm (max 28°C on Mon afternoon, min 26°C on Mon night). Winds increasing (light winds from the NNW on Mon morning, fresh winds from the SE by Wed night). | ||||||||||||||||||||
Friday 17 | Saturday 18 | Sunday 19 | Monday 20 | Tuesday 21 | Wednesday 22 | Thursday 23 | |||||||||||||||
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 16 | SW 15 | SW 14 | SW 14 | SW 14 | SW 13 | SSW 13 | SSW 13 | SSW 17 | SSW 17 | SSW 16 | SSW 16 | SSW 14 | SSW 14 | SSW 13 | SSW 13 | SSW 13 | SSE 7 | SSE 9 | SSE 10 | SSE 10 |
Wave Graph | |||||||||||||||||||||
883 | 784 | 676 | 667 | 589 | 525 | 458 | 451 | 908 | 2164 | 1849 | 1592 | 1187 | 917 | 595 | 461 | 378 | 277 | 551 | 586 | 855 | |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross | cross-on | glassy | glassy | cross-off | cross-off | cross-on | cross-on | cross-on | cross-off | cross-on | cross-off | cross-off | cross | cross-off | cross | cross | cross | cross | cross-on | cross |
High Tide | 8:50PM0.96m | 8:57AM1.22m | 9:36PM1.00m | 9:38AM1.10m | 10:22PM1.00m | 10:19AM0.97m | 11:10PM0.99m | 11:01AM0.83m | 00:02AM0.96m | 11:49AM0.70m | 1:01AM0.93m | 12:56PM0.60m | 2:07AM0.92m | ||||||||
Low Tide | 2:37PM0.00m | 2:23AM0.11m | 3:12PM0.03m | 3:11AM0.17m | 3:45PM0.08m | 3:59AM0.25m | 4:18PM0.13m | 4:50AM0.33m | 4:51PM0.18m | 5:47AM0.39m | 5:28PM0.23m | 6:59AM0.43m | 6:12PM0.28m | ||||||||
6:28 | — | — | 6:28 | — | — | 6:28 | — | — | 6:28 | — | — | 6:28 | — | — | 6:28 | — | — | 6:28 | — | — | |
— | 6:29 | — | — | 6:29 | — | — | 6:29 | — | — | 6:29 | — | — | 6:29 | — | — | 6:30 | — | — | 6:30 | — | |
mm | 1 | — | 7 | 4 | 4 | 19 | — | 1 | 6 | 2 | 4 | 7 | 3 | 3 | 3 | — | 2 | 5 | — | — | — |
Temp °C | 29 | 29 | 28 | 28 | 28 | 27 | 26 | 27 | 27 | 27 | 28 | 27 | 27 | 28 | 27 | 28 | 28 | 28 | 28 | 28 | 28 |
Feels °C | 33 | 32 | 33 | 32 | 31 | 30 | 28 | 26 | 30 | 31 | 31 | 31 | 29 | 31 | 29 | 29 | 29 | 28 | 27 | 27 | 27 |
Swell 1 Height (m) Direction Period (s) | SW 16 | SW 15 | SW 14 | SW 14 | SW 14 | SW 13 | SSW 13 | SSW 13 | SSW 17 | SSW 17 | SSW 16 | SSW 16 | SSW 14 | SSW 14 | SSW 13 | SSW 13 | SSW 13 | SSW 12 | SSW 14 | SW 16 | SW 16 |
883 | 784 | 676 | 667 | 589 | 525 | 458 | 451 | 908 | 2164 | 1849 | 1592 | 1187 | 917 | 595 | 461 | 378 | 213 | 140 | 90 | 90 | |
Swell 2 Height (m) Direction Period (s) | SSE 7 | SSE 7 | SSE 7 | SSE 7 | SSE 7 | SSE 7 | S 7 | SSW 18 | SW 13 | WNW 7 | SSE 6 | SSE 7 | WNW 9 | WNW 10 | WNW 9 | WNW 8 | SSW 16 | SW 18 | WNW 10 | SSW 15 | SW 13 |
57 | 74 | 65 | 49 | 63 | 67 | 38 | 333 | 400 | 5 | 45 | 40 | 16 | 19 | 25 | 13 | 87 | 49 | 21 | 42 | 45 | |
Swell 3 Height (m) Direction Period (s) | WNW 8 | WNW 8 | WNW 8 | WNW 8 | WNW 8 | WNW 8 | N 5 | SSE 7 | NW 7 | W 13 | WNW 8 | WNW 7 | — | SSW 20 | SSW 18 | WNW 10 | WNW 8 | WNW 10 | SSW 12 | WNW 11 | WNW 10 |
14 | 13 | 12 | 13 | 12 | 11 | 7 | 38 | 8 | 3 | 6 | 5 | — | 37 | 62 | 11 | 13 | 10 | 14 | 23 | 20 | |
Wind waves Height (m) Direction Period (s) | — | — | — | — | — | — | W 4 | W 4 | SSW 5 | S 5 | — | — | SSE 5 | SSE 6 | SSE 7 | SSE 7 | SSE 7 | SSE 7 | SSE 9 | SSE 10 | SSE 10 |
— | — | — | — | — | — | 36 | 30 | 46 | 46 | — | — | 53 | 77 | 108 | 132 | 124 | 277 | 551 | 586 | 855 | |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 6 | 6 | 0 | 0 | 0 | 2 | 84 | 156 | 7 | 0 | 2 | 0 | 6 | 6 | 0 | 6 | 6 | 156 | 339 | 387 | 156 |
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.










