
Surf Forecasts:
E-Bay surf forecast from 3 Sep 2026:
- Most powerful swell: Tuesday 8 Sep, 10PM (local time) - 4.5ft (1.3m), 16s period, S swell with 875 kJ wave energy.
Best Forecast Surf Conditions for E-Bay this week:
The most powerful waves expected at E-Bay in the next 16 days are 1.3m 16s and forecast to arrive on Tuesday (Sep 08) at 10PM. Winds are predicted to be onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.7m 7s period and expected on Sunday (Sep 06) at 10PM.
| Wave Type | Time (WIB) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | - | - |
| Best Surf | - | - |
| Most Powerful | 10PM (Tue 8th Sep) | 4.5ft (1.3m) 16s |
Table - best surf conditions forecast for E-Bay over the next 16 days.
The Lowdown
Alright folks, Rusty here. Let’s get into it for E-Bay.
We’re looking at a bit of a rough start. The first week or so is pretty much a write-off, with poor surf conditions and a lot of stormy weather on the cards. The wind is mostly onshore or cross-onshore, and the periods are mixed, but the real issue is that the wave quality is just not there. The water is a warm 85°, which is about average for the time of year here, so that’s no excuse.
The real action starts to pick up from September 12th. The first true standout is Saturday morning the 12th. We’ve got a glassy, clean morning with the wind going nearly dead calm. The swell is a modest 3ft from the SSW, but it’s got a solid 14-second period, which gives it some real punch. The combined energy is moderate at 475, and while it’s not huge, that glassy surface will make it feel like a different ocean. It’s a reef break, and it’s fairly consistent, but you might have some company as it gets ‘sometimes’ crowded. For a morning session, that’s the pick of the early days.
Then, hold onto your board, because Saturday afternoon the 12th kicks it up a notch. The swell drops slightly to 3ft, but the period jumps to a very long 19 seconds. That’s proper groundswell, and it’ll wrap in nicely at this reef. The combined energy is a solid 865, which is moderate-to-strong, and the wind is glassy again. It’s going to be clean, lined-up, and punchy. This is your best bet for the whole forecast, but it’s an advanced spot, so keep that in mind.
Moving into the next week, Sunday the 13th keeps the good run going. Glassy conditions again, with a 3ft SSW swell and an 18-second period. The energy is still strong at 826. This is another very good day, with the same caveat about crowds.
Monday the 14th is a bit of a mixed bag. The morning is glassy with a 4ft SSW swell and a 16-second period, cranking out a combined energy of 937. That’s one of the best energy readings of the whole window, and it’ll be clean. But the afternoon turns cross-onshore, so get in early.
There’s a gap of a few days after that with marginal conditions, but another bright spot shows up on Thursday the 17th. The afternoon brings glassy conditions with a 3ft swell from the S, a 17-second period, and a combined energy of 785. That’s a solid, clean late session.
The final standout is Friday morning the 18th. Glassy again, with a 4ft S swell and a 14-second period. The energy is 812, so it’s got plenty of push. The wind is offshore from the NE, which is perfect for this spot. That’s a great way to close out the fortnight.
So, to sum it up: the first week is a dud, but from the 12th through the 18th, we’ve got a run of glassy mornings and some very long-period groundswell. The best of the best is the afternoon of the 12th. Don’t sleep on it.
Rusty.
Short Range ForecastLight rain (total 9mm), mostly falling on Thu night. Warm (max 29°C on Thu afternoon, min 27°C on Thu night). Wind will be generally light. | Days 5-7 Weather SummaryHeavy rain (total 33mm), heaviest during Wed morning. Warm (max 28°C on Sun afternoon, min 26°C on Mon night). Wind will be generally light. | |||||||||||||||||||
Thu 3 | Friday 4 | Saturday 5 | Sunday 6 | Monday 7 | Tuesday 8 | Wednesday 9 | ||||||||||||||
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 14 | SSW 14 | SSW 13 | SSW 13 | S 16 | S 17 | S 17 | S 15 | S 16 | S 17 | S 16 | S 15 | S 14 | S 20 | S 19 | S 18 | S 16 | S 15 | S 15 | SSW 14 |
Wave Graph | ||||||||||||||||||||
366 | 356 | 232 | 225 | 185 | 579 | 546 | 272 | 522 | 587 | 600 | 418 | 236 | 305 | 574 | 871 | 853 | 631 | 441 | 280 | |
Wind (km/h) | ||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | on | cross-on | cross-on | on | on | on | on | on | cross-on | on | on | on | on | on | cross-on | on | on | on | on | on |
High Tide | 10:17PM1.07m | 10:10AM0.68m | 11:19PM1.01m | 11:17AM0.57m | 00:49AM0.97m | 1:40PM0.52m | 2:29AM0.99m | 3:29PM0.59m | 3:45AM1.05m | 4:33PM0.72m | 4:43AM1.13m | 5:21PM0.85m | ||||||||
Low Tide | 4:46AM0.25m | 4:17PM0.15m | 5:59AM0.32m | 5:12PM0.23m | 7:49AM0.35m | 6:34PM0.30m | 9:45AM0.29m | 8:24PM0.31m | 10:43AM0.20m | 9:54PM0.25m | 11:23AM0.13m | 10:58PM0.17m | ||||||||
— | — | 6:18 | — | — | 6:18 | — | — | 6:18 | — | — | 6:18 | — | — | 6:18 | — | — | 6:18 | — | — | |
6:23 | — | — | 6:23 | — | — | 6:23 | — | — | 6:23 | — | — | 6:22 | — | — | 6:22 | — | — | 6:22 | — | |
mm | 1 | 4 | — | 1 | 2 | — | — | — | 1 | 3 | 2 | 1 | 4 | 6 | — | 2 | 7 | 8 | 2 | 2 |
Temp °C | 29 | 28 | 28 | 28 | 27 | 28 | 28 | 28 | 28 | 28 | 27 | 28 | 27 | 27 | 28 | 28 | 27 | 27 | 27 | 27 |
Feels °C | 32 | 32 | 31 | 31 | 30 | 29 | 29 | 28 | 29 | 29 | 26 | 30 | 29 | 29 | 31 | 31 | 29 | 29 | 29 | 30 |
Swell 1 Height (m) Direction Period (s) | SSE 7 | SSW 14 | SSW 13 | SSW 13 | SSW 13 | S 17 | S 17 | S 15 | S 16 | S 17 | S 16 | S 15 | S 14 | S 13 | SSE 9 | S 18 | S 16 | S 15 | S 15 | SSE 11 |
91 | 356 | 232 | 225 | 173 | 579 | 546 | 272 | 522 | 587 | 600 | 418 | 236 | 219 | 227 | 871 | 853 | 631 | 441 | 340 | |
Swell 2 Height (m) Direction Period (s) | SSW 14 | SSE 8 | SSE 8 | SSE 8 | S 16 | WNW 9 | SSW 17 | S 18 | S 20 | S 13 | S 24 | SSW 21 | SSW 20 | S 20 | S 19 | SSE 9 | SSE 14 | S 12 | S 19 | SSW 14 |
366 | 83 | 91 | 74 | 185 | 8 | 119 | 221 | 276 | 82 | 11 | 45 | 129 | 305 | 574 | 172 | 67 | 70 | 30 | 280 | |
Swell 3 Height (m) Direction Period (s) | — | WNW 8 | S 18 | S 18 | WNW 8 | W 13 | WNW 8 | S 21 | W 11 | SSW 16 | S 24 | W 10 | SSE 18 | SSE 17 | S 12 | S 12 | — | W 10 | — | S 18 |
— | 6 | 6 | 54 | 6 | 4 | 7 | 9 | 9 | 295 | 11 | 2 | 31 | 27 | 105 | 103 | — | 2 | — | 165 | |
Wind waves Height (m) Direction Period (s) | — | — | — | — | SSE 8 | SE 5 | SSE 6 | SSE 6 | SSE 7 | SSE 8 | SSE 8 | SSE 8 | SSE 8 | SSE 9 | — | — | SSE 9 | SSE 9 | SSE 12 | — |
— | — | — | — | 88 | 73 | 127 | 181 | 193 | 215 | 292 | 277 | 329 | 311 | — | — | 222 | 222 | 560 | — | |
Nearest Offshore or Glassy | ||||||||||||||||||||
Distance (km) | 0 | 0 | 0 | 0 | 0 | 6 | 378 | 6 | 6 | 6 | 6 | 6 | 378 | 0 | 0 | 0 | 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.










