
Surf Forecasts:
E-Bay surf forecast from 10 Sep 2026:
- Most powerful swell: Sunday 13 Sep, 1AM (local time) - 5ft (1.5m), 18s period, SSW swell with 1,425 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 1.5m 18s and forecast to arrive on Sunday (Sep 13) at 1AM. Winds are predicted to be onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.3m 11s period and expected on Thursday (Sep 10) at 4PM.
| Wave Type | Time (WIB) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | - | - |
| Best Surf | - | - |
| Most Powerful | 1AM (Sun 13th Sep) | 5ft (1.5m) 18s |
Table - best surf conditions forecast for E-Bay over the next 16 days.
The Lowdown
Alright folks, Rusty here. Let's get straight into it.
The next couple of weeks are a bit of a mixed bag for E-Bay. We've got consistent swell running, but a lot of stormy weather and wind to wrestle with. It's not all bad though, there's a little window of clean conditions that looks like the pick of the bunch, if you're patient.
We start off on Thursday the 10th and Friday the 11th with a solid SSW groundswell, offering 3ft to 4ft sets. The problem is the wind is blowing straight onshore at 12 to 16 mph, and there’s the risk of thunderstorms. The water's warm, sitting at 85°, which is pretty normal for this time of year. But honestly, the first few days are a write-off—rough and messy. The combined energy is actually moderate to strong, hitting 782 on Thursday afternoon, but it's all wind-chop and poor form. Not worth paddling out.
Saturday the 12th shows a bit of promise but still falls short. The swell bumps up a touch, with 4ft in the afternoon off the SSW, and the period is a very long 19 seconds. This kind of groundswell loves a reef like E-Bay, and the energy jumps to 1525 (strong). But the wind is still onshore or light, and we’ve got that "marginal" label. The conditions just aren't there. This pattern of onshore wind, storm risk, and marginal surf holds through to Tuesday the 16th, with heights staying around 4ft to 5ft.
Now, here’s where things get interesting. After a long run of poor conditions, Wednesday the 23rd morning is the real standout. The wind goes glassy—dead calm, 0 mph from the SSW. The swell is a clean 4ft from the south, with a 16-second period. The energy is solid at 904 (moderate-strong). For the first time in this forecast, we get "very good surf conditions" and a 3/10 score. If you can wait that long, that Wednesday morning is your golden ticket. It’ll be clean, lined-up, and not too big for most surfers. The window is tight though, as the afternoon brings cross-onshore wind right back.
Beyond that, the final few days on the 24th and 25th settle back into onshore breezes and smaller, shorter-period swell. The energy drops back to moderate. Nothing special there.
So, the clear winner here is the morning of Wednesday, 23 September. Don't get too excited about the weeks before. It’s a long wait, but that glassy window looks like the one to aim for.
Rusty.
Short Range ForecastHeavy rain (total 63mm), heaviest during Thu night. Warm (max 27°C on Thu morning, min 26°C on Fri afternoon). Wind will be generally light. | Days 4-6 Weather SummaryHeavy rain (total 32mm), heaviest during Sun morning. Warm (max 28°C on Mon morning, min 26°C on Sun night). Wind will be generally light. | ||||||||||||||||||||
Thursday 10 | Friday 11 | Saturday 12 | Sunday 13 | Monday 14 | Tuesday 15 | Wednesday 16 | |||||||||||||||
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 16 | SSW 17 | SSW 16 | SSW 16 | SSW 15 | SSW 21 | SSW 20 | SSW 19 | SSW 18 | SSW 17 | SSW 16 | SSW 15 | SSW 16 | SSW 16 | SSW 15 | SSW 15 | SSW 15 | SSW 14 | SSW 15 | S 15 | S 15 |
Wave Graph | |||||||||||||||||||||
561 | 754 | 644 | 554 | 468 | 584 | 485 | 1315 | 1425 | 1108 | 1068 | 756 | 763 | 906 | 838 | 687 | 669 | 536 | 543 | 619 | 619 | |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | on | on | on | on | on | cross-on | on | on | on | on | on | on | on | on | on | on | on | on | on | on | on |
High Tide | 6:01PM0.98m | 6:12AM1.19m | 6:38PM1.09m | 6:50AM1.16m | 7:14PM1.16m | 7:25AM1.10m | 7:48PM1.19m | 7:59AM1.02m | 8:21PM1.18m | 8:30AM0.92m | 8:53PM1.13m | 8:58AM0.81m | 9:26PM1.05m | ||||||||
Low Tide | 11:55AM0.07m | 11:48PM0.11m | 12:25PM0.03m | 00:32AM0.06m | 12:53PM0.01m | 1:12AM0.05m | 1:20PM0.01m | 1:49AM0.06m | 1:46PM0.02m | 2:24AM0.09m | 2:13PM0.05m | 2:59AM0.15m | 2:40PM0.09m | 3:35AM0.21m | |||||||
6:16 | — | — | 6:16 | — | — | 6:16 | — | — | 6:16 | — | — | 6:16 | — | — | 6:15 | — | — | 6:15 | — | — | |
— | 6:22 | — | — | 6:22 | — | — | 6:22 | — | — | 6:21 | — | — | 6:21 | — | — | 6:21 | — | — | 6:20 | — | |
mm | 4 | 3 | 9 | 8 | 9 | 9 | 6 | 5 | 10 | 10 | 7 | 6 | 3 | 1 | 3 | 1 | — | 1 | 8 | 5 | 8 |
Temp °C | 27 | 27 | 27 | 27 | 26 | 27 | 27 | 27 | 26 | 27 | 27 | 27 | 28 | 28 | 27 | 28 | 28 | 27 | 27 | 27 | 27 |
Feels °C | 28 | 28 | 28 | 29 | 29 | 30 | 31 | 30 | 29 | 29 | 29 | 30 | 30 | 30 | 29 | 29 | 29 | 28 | 28 | 29 | 29 |
Swell 1 Height (m) Direction Period (s) | SSW 16 | SSW 17 | SSW 16 | SSW 16 | SSE 10 | SSW 14 | SSW 15 | SSW 19 | SSW 18 | SSW 17 | SSW 16 | SSW 15 | SSW 16 | SSW 16 | SSW 15 | SSW 15 | SSW 15 | SSW 14 | SSW 15 | S 15 | S 15 |
561 | 754 | 644 | 554 | 196 | 371 | 376 | 1315 | 1425 | 1108 | 1068 | 756 | 763 | 906 | 838 | 687 | 669 | 536 | 543 | 619 | 619 | |
Swell 2 Height (m) Direction Period (s) | W 11 | — | SW 26 | SW 24 | SSW 15 | SSE 9 | SSE 9 | SSE 9 | — | W 19 | SSE 9 | SSE 6 | SSE 8 | — | — | W 16 | S 24 | SW 21 | SSW 20 | SSW 19 | SSW 18 |
2 | — | 26 | 141 | 468 | 124 | 130 | 92 | — | 30 | 15 | 55 | 7 | — | — | 5 | 11 | 18 | 37 | 37 | 123 | |
Swell 3 Height (m) Direction Period (s) | — | SW 26 | W 10 | W 10 | SSW 24 | SSW 21 | SSW 20 | SSW 14 | — | — | — | — | W 17 | — | — | — | SW 24 | — | W 10 | W 9 | WNW 9 |
— | 28 | 2 | 2 | 54 | 584 | 485 | 210 | — | — | — | — | 23 | — | — | — | 22 | — | 7 | 6 | 8 | |
Wind waves Height (m) Direction Period (s) | SSE 11 | SSE 11 | SSE 10 | SSE 10 | — | — | — | — | SSE 9 | SSE 6 | SSE 6 | — | SSE 6 | SSE 6 | SSE 6 | SSE 7 | SSE 7 | SSE 6 | SSE 5 | SSE 6 | SSE 7 |
387 | 387 | 292 | 269 | — | — | — | — | 90 | 44 | 52 | — | 64 | 82 | 71 | 70 | 66 | 66 | 50 | 71 | 79 | |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 6 | 378 | 6 | 2 | 0 | 0 | 0 | 6 | 0 | 6 | 0 | 0 | 0 | 0 | 0 | 6 | 378 | 154 | 154 | 6 | 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.










