
Surf Forecasts:
E-Bay surf forecast from 11 Aug 2026:
- Best quality surf: Sunday 16 Aug, 4AM (local time) - 5ft (1.6m), 16s period, S swell with glassy winds.
- Most powerful swell: Tuesday 11 Aug, 10AM (local time) - 7ft (2.2m), 18s period, S swell with 3,081 kJ wave energy.
- Next surfable swell (1★+): Friday 14 Aug, 1PM (local time) - 0.5ft (0.2m), 21s period with S swell.
Best Forecast Surf Conditions for E-Bay this week:
The surf forecast for E-Bay over the next 16 days: The first swell (rated 1 star or higher) is forecast to arrive on Friday (Aug 14) at 1PM. The primary swell is predicted to be 0.2m and 21s period with a secondary swell of 0.8m and 5s. The wind is predicted to be glassy as the swell arrives.
The most powerful waves expected at E-Bay in the next 16 days are 2.2m 18s and forecast to arrive on Tuesday (Aug 11) at 10AM. Winds are predicted to be onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 2.1m 16s period and expected on Friday (Aug 14) at 1PM.
| Wave Type | Time (WIB) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 1PM (Fri 14th Aug) | 0.5ft (0.2m) 21s |
| Best Surf | 4AM (Sun 16th Aug) | 5ft (1.6m) 16s |
| Most Powerful | 10AM (Tue 11th Aug) | 7ft (2.2m) 18s |
Table - best surf conditions forecast for E-Bay over the next 16 days.
The Lowdown
Alright, Rusty here. Let’s take a look at what’s on the cards for E-Bay over the next couple of weeks.
Straight up, this is a tricky one. For a spot that’s an exposed reef, we’ve got some serious southern groundswell on the way, but the onshore wind is going to be a constant headache for most of the forecast. The water temp is floating around average for this time of year, no major anomalies to report.
The first week is pretty grim. From Tuesday, the 11th of August, right through to Friday, the 15th, it’s mostly a write-off. We see a big, long-period S swell coming in – periods up to 18 seconds – hitting 8ft on Tuesday morning (combined energy of 3905), but the wind is hammering straight onshore from the SSE at 12 mph. That’s a dirty, bumpy mess. The swell drops through Wednesday and Thursday, but it’s still onshore. Friday afternoon teases a bit with the wind swinging northerly offshore, but the swell drops right out to 1ft. That’s a buzzkill.
The standout is Sunday, the 16th of August. That’s the window. The morning brings glassy conditions with a light ENE breeze. The swell is a clean 5ft from the S with a 15-second period (combined energy 1107). For this reef, that’s excellent. The offshore wind from the NNW is what this place needs, and for a few hours, you’ll get clean, lined-up waves. It’s rated for advanced surfers, and with a 5ft swell, it’s a good size for that crew. Keep in mind this break can draw a crowd sometimes, so get out early.
After Sunday, we’re back into onshore winds and lumpy conditions from Monday the 17th through the rest of the week. The swell sticks around – from 5ft to 7ft – but with the wind on it all day, it’s just not worth the paddle. The second week, from the 21st of August onward, is more of the same: consistent waist-to-chest high S swell but locked in with onshore southerly winds. The long period (15-17 seconds) means the energy is there, but it’s messy.
There is a second possible highlight on Tuesday the 25th of August. The morning shows a 4ft S swell with light winds, and the afternoon bumps up to a 3ft SSW swell with a very long 19-second period (combined energy 1172). It’s a gamble this far out, but if the wind plays nice, that afternoon could be clean but small for the reef.
Overall, Sunday the 16th is your best bet – glassy morning, good size, proper groundswell. The rest of the run is onshore slop. If you’re after clean waves, don’t sleep on that Sunday session.
Stay on it, Rusty.
Short Range ForecastLight rain (total 7mm), mostly falling on Thu night. Warm (max 28°C on Tue morning, min 27°C on Tue night). Wind will be generally light. | Days 4-6 Weather SummaryHeavy rain (total 29mm), heaviest during Sun morning. Warm (max 27°C on Fri morning, min 24°C on Sun night). Wind will be generally light. | ||||||||||||||||||||
Tuesday 11 | Wednesday 12 | Thursday 13 | Friday 14 | Saturday 15 | Sunday 16 | Monday 17 | |||||||||||||||
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) | S 18 | S 17 | S 16 | S 16 | S 16 | S 16 | S 18 | S 19 | S 24 | SSW 22 | SSW 20 | SSW 20 | S 18 | S 17 | S 16 | S 15 | S 15 | S 14 | S 14 | S 14 | S 18 |
Wave Graph | |||||||||||||||||||||
3081 | 2701 | 1788 | 1565 | 1398 | 1225 | 649 | 1357 | 11 | 91 | 129 | 298 | 492 | 373 | 1273 | 545 | 733 | 496 | 329 | 294 | 646 | |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | on | on | on | on | on | on | on | on | on | on | glassy | cross-on | cross-on | on | on | glassy | on | cross-on | cross-on | cross-on | on |
High Tide | 5:30PM0.73m | 5:44AM1.25m | 6:18PM0.85m | 6:30AM1.29m | 7:01PM0.95m | 7:12AM1.28m | 7:41PM1.03m | 7:51AM1.22m | 8:20PM1.08m | 8:28AM1.13m | 8:58PM1.10m | 9:02AM1.01m | 9:36PM1.08m | ||||||||
Low Tide | 11:42AM0.12m | 10:52PM0.14m | 12:22PM0.05m | 11:49PM0.09m | 12:58PM0.01m | 00:39AM0.06m | 1:30PM-0.01m | 1:25AM0.06m | 2:01PM-0.00m | 2:08AM0.08m | 2:30PM0.02m | 2:49AM0.13m | 2:58PM0.05m | 3:29AM0.20m | |||||||
6:26 | — | — | 6:26 | — | — | 6:26 | — | — | 6:26 | — | — | 6:26 | — | — | 6:24 | — | — | 6:24 | — | — | |
— | 6:29 | — | — | 6:29 | — | — | 6:29 | — | — | 6:29 | — | — | 6:29 | — | — | 6:29 | — | — | 6:28 | — | |
mm | — | — | — | — | — | 2 | — | — | 5 | 4 | 1 | — | 2 | — | 8 | 7 | 6 | 1 | — | — | — |
Temp °C | 28 | 28 | 28 | 28 | 28 | 28 | 28 | 28 | 28 | 27 | 27 | 27 | 27 | 27 | 26 | 27 | 26 | 26 | 28 | 28 | 27 |
Feels °C | 29 | 29 | 29 | 30 | 30 | 31 | 30 | 30 | 31 | 30 | 31 | 30 | 30 | 30 | 29 | 31 | 28 | 29 | 30 | 31 | 30 |
Swell 1 Height (m) Direction Period (s) | S 18 | S 17 | S 16 | S 16 | S 16 | S 16 | S 12 | S 19 | S 17 | S 16 | SSE 16 | SSE 15 | SSE 14 | S 14 | S 16 | S 15 | S 15 | S 14 | S 14 | S 14 | S 18 |
3081 | 2701 | 1788 | 1565 | 1398 | 1225 | 672 | 1357 | 1555 | 1314 | 1842 | 1421 | 913 | 849 | 1273 | 545 | 733 | 496 | 329 | 294 | 646 | |
Swell 2 Height (m) Direction Period (s) | SSW 20 | WNW 8 | SSW 18 | WNW 9 | S 22 | S 20 | S 18 | SSE 11 | SSE 11 | SSW 22 | SSW 20 | S 20 | S 18 | S 17 | S 16 | SW 15 | S 26 | — | SSW 20 | S 19 | S 10 |
485 | 14 | 356 | 8 | 36 | 194 | 649 | 431 | 353 | 91 | 129 | 121 | 492 | 373 | 329 | 183 | 13 | — | 76 | 192 | 78 | |
Swell 3 Height (m) Direction Period (s) | WNW 8 | W 10 | WNW 8 | W 20 | WNW 9 | WNW 10 | WNW 11 | S 25 | S 24 | WNW 11 | WNW 11 | SSW 20 | S 18 | SW 16 | SW 15 | WNW 10 | SW 26 | SW 26 | SSW 24 | SW 24 | SSW 13 |
14 | 2 | 7 | 7 | 8 | 10 | 11 | 12 | 11 | 12 | 12 | 298 | 235 | 255 | 242 | 9 | 26 | 26 | 55 | 22 | 101 | |
Wind waves Height (m) Direction Period (s) | SE 4 | — | SSE 4 | — | — | SSE 4 | — | — | — | SSE 11 | — | — | — | — | S 4 | SSE 8 | — | WNW 4 | — | — | — |
19 | — | 22 | — | — | 14 | — | — | — | 302 | — | — | — | — | 18 | 105 | — | 8 | — | — | — | |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 6 | 113 | 154 | 154 | 113 | 2 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 6 | 0 | 0 | 0 | 0 |
Best forecast wave conditions in Mentawi Islands | |||||||||||||||||||||
Best forecast wave conditions in Indonesia | |||||||||||||||||||||
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Information about the E-Bay Surf forecast
The above surf forecast table for E-Bay provides essential information for determining whether the surfing conditions will be good over the next 16 days. A general guide to surfing at E-Bay can be found by selecting the local surf guide option on the grey menu. Our E-Bay 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 (E-Bay) 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 E-Bay 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.
Are you planning a holiday in Mentawi Islands? If you are looking for accommodation near E-Bay, camping, hotels and holiday cottages in Mentawi Islands, consider staying in Padang which is 168 km (104 miles) away.











