Surf Forecasts:
Kandui Left surf forecast from 1 Aug 2026:
- Best quality surf: Sunday 2 Aug, 7AM (local time) - 4.5ft (1.4m), 16s period, SSW swell with cross-offshore winds.
- Most powerful swell: Friday 7 Aug, 1PM (local time) - 8ft (2.5m), 18s period, SSW swell with 3,887 kJ wave energy.
- Next surfable swell (1★+): Sunday 2 Aug, 7AM (local time) - 4.5ft (1.4m), 16s 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 Sunday (Aug 02) at 7AM. The primary swell is predicted to be 1.4m and 16s period with a secondary swell of 0.8m and 19s. Another secondary swell of 1.1m and 7s is also forecast. 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 18s and forecast to arrive on Friday (Aug 07) at 1PM. Winds are predicted to be cross-offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.9m 5s period and expected on Thursday (Aug 06) at 4PM.
| Wave Type | Time (WIB) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 7AM (Sun 2nd Aug) | 4.5ft (1.4m) 16s |
| Best Surf | 7AM (Sun 2nd Aug) | 4.5ft (1.4m) 16s |
| Most Powerful | 1PM (Fri 7th Aug) | 8ft (2.5m) 18s |
Table - best surf conditions forecast for Kandui Left over the next 16 days.
The Lowdown
Alright, Rusty here. Let’s talk about what’s shaping up for Kandui Left.
The first couple of days are nothing to write home about. Saturday the 1st and Sunday the 2nd are pretty average – cross-shore wind, a bit of chop, and the swell is there but the conditions don’t help. Water temp is about 85°F, which is normal for the area.
Things start to get interesting from Monday the 3rd. We’re looking at a long-period SSW groundswell, 15 to 18 seconds, with moderate energy (1220–1747). The wind goes glassy on Monday afternoon and Tuesday, and that’s when the reef will be clean and fun. Tuesday afternoon is a standout with 6ft SSW swell, glassy conditions, and the water is warm. Crowds are always a thing here, so be early.
Wednesday the 5th is a proper one. Morning offshore wind from the ENE at 9 mph, 6ft SSW swell, and the energy is solid (1893). The waves will be clean and hollow. Afternoon gets even better with a 19-second period swell – super long period, so expect big sets but with longer waits.
Thursday the 6th and Friday the 7th see the swell size bump up to 7ft to 8ft, with cross-off wind from the north. Still clean, but the power is strong. Combined energy jumps into the 2500–3900 range. This is expert-only territory. If you’re not used to big, fast reef waves, give it a miss.
The following week, from the 9th onward, the swell holds at 8ft to 8ft, from the south, with periods around 15–18 seconds. The 9th has beautiful offshore winds from the north-northeast – clean and powerful. By the 11th and 12th, the wind goes more cross-shore from the southeast, and the energy hits 4889 on the 11th afternoon. That’s very strong, big waves, and only for the experienced.
The 15th and 16th still have solid 8ft to 8ft SSW swell, with 18-second periods. Light cross-shore wind, so a bit of texture but plenty of power. Energy is still high (3535–4246). It’s a long run of quality, but the crowds will be thick.
The best days are Tuesday afternoon the 4th, Wednesday the 5th, and Sunday the 9th. That’s where you’ll find the cleanest, most manageable surf. The bigger days from the 6th–8th and 11th–12th are for the brave.
Keep an eye on the tides, and don’t snooze on the lineup.
Rusty.
Short Range ForecastHeavy rain (total 42mm), heaviest during Sun 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 62mm), heaviest during Wed night. Warm (max 28°C on Tue morning, min 25°C on Thu night). Winds increasing (calm on Tue afternoon, fresh winds from the NNW by Thu morning). | ||||||||||||||||||||
Saturday 1 | Sunday 2 | Monday 3 | Tuesday 4 | Wednesday 5 | Thursday 6 | Friday 7 | |||||||||||||||
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 17 | SSW 16 | SW 16 | SSW 15 | SSW 18 | SSW 16 | SSW 15 | SSW 14 | SSW 17 | SSW 16 | SSW 16 | SSW 15 | SSW 15 | SSW 15 | SSW 18 | SSW 17 | SSW 16 | SSW 16 | SSW 18 | SSW 17 | SSW 16 |
Wave Graph  | |||||||||||||||||||||
 kJ | 1543 | 1184 | 1018 | 770 | 790 | 1341 | 1145 | 996 | 700 | 1042 | 1586 | 1393 | 1412 | 1077 | 2611 | 2662 | 2384 | 2109 | 1951 | 3799 | 3502 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross | cross-on | cross | cross | glassy | on | glassy | glassy | cross-off | glassy | glassy | glassy | off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off |
High Tide | 8:26PM0.93m | 8:22AM1.13m | 8:56PM0.98m | 8:49AM1.07m | 9:28PM1.01m | 9:19AM0.99m | 10:05PM1.03m | 9:53AM0.89m | 10:51PM1.03m | 10:34AM0.77m | 11:50PM1.02m | 11:35AM0.65m | 1:08AM1.01m | ||||||||
Low Tide | 2:09PM0.06m | 2:01AM0.15m | 2:38PM0.05m | 2:41AM0.17m | 3:07PM0.05m | 3:23AM0.20m | 3:39PM0.07m | 4:10AM0.24m | 4:14PM0.10m | 5:06AM0.29m | 4:55PM0.14m | 6:15AM0.33m | 5:46PM0.19m | ||||||||
 |  |  | | | | | | | | | | | | | |  | | | |  | |
 | 6:28 | — | — | 6:28 | — | — | 6:28 | — | — | 6:26 | — | — | 6:26 | — | — | 6:26 | — | — | 6:26 | — | — |
 | — | 6:30 | — | — | 6:30 | — | — | 6:30 | — | — | 6:30 | — | — | 6:30 | — | — | 6:29 | — | — | 6:29 | — |
mm | 2 | — | 10 | 3 | 3 | 16 | — | 2 | 6 | 4 | 3 | 1 | 1 | 3 | 21 | 4 | 10 | 15 | 11 | 4 | 10 |
Temp °C | 28 | 29 | 28 | 28 | 29 | 28 | 28 | 28 | 28 | 28 | 28 | 27 | 28 | 28 | 27 | 28 | 26 | 26 | 27 | 27 | 27 |
Feels °C | 30 | 32 | 30 | 32 | 34 | 32 | 33 | 32 | 32 | 32 | 32 | 31 | 30 | 30 | 29 | 27 | 26 | 27 | 26 | 28 | 29 |
Swell 1 Height (m) Direction Period (s) | SSW 17 | SSW 16 | SW 16 | SSW 15 | SSW 18 | SSW 16 | SSW 15 | SSW 14 | SSW 14 | SSW 16 | SSW 16 | SSW 15 | SSW 15 | SSW 15 | SSW 18 | SSW 17 | SSW 16 | SSW 16 | SSW 18 | SSW 17 | SSW 16 |
| kJ | 1543 | 1184 | 1018 | 770 | 790 | 1341 | 1145 | 996 | 561 | 1042 | 1586 | 1393 | 1412 | 1067 | 2611 | 2662 | 2384 | 2109 | 1951 | 3799 | 3502 |
Swell 2 Height (m) Direction Period (s) | WNW 10 | WNW 11 | SSW 19 | SSW 19 | SW 14 | SSE 8 | SSE 8 | SSE 7 | SSW 17 | SSW 13 | WNW 10 | WNW 10 | WNW 10 | SSW 19 | WNW 9 | WNW 8 | WNW 10 | SSW 20 | SSW 14 | WNW 9 | WNW 9 |
| kJ | 18 | 22 | 375 | 589 | 482 | 85 | 58 | 61 | 700 | 427 | 147 | 214 | 218 | 1077 | 158 | 96 | 141 | 640 | 1171 | 100 | 66 |
Swell 3 Height (m) Direction Period (s) | — | W 16 | WNW 11 | SSE 9 | SSE 8 | WNW 10 | WNW 9 | S 18 | SSE 7 | WNW 11 | SSE 6 | S 16 | SSW 22 | WNW 10 | SW 15 | S 12 | N 5 | WNW 10 | NW 10 | — | — |
| kJ | — | 5 | 22 | 28 | 140 | 18 | 17 | 160 | 37 | 88 | 14 | 20 | 263 | 169 | 171 | 11 | 17 | 98 | 134 | — | — |
Wind waves Height (m) Direction Period (s) | SSE 7 | SSE 7 | SSE 7 | SSE 7 | — | — | — | — | — | — | — | — | N 4 | — | — | N 5 | N 5 | N 6 | N 5 | — | — |
| kJ | 117 | 129 | 147 | 101 | — | — | — | — | — | — | — | — | 6 | — | — | 13 | 42 | 46 | 18 | — | — |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 6 | 6 | 6 | 6 | 0 | 105 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 2 | 156 | 7 | 2 | 156 | 7 | 2 |
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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