
Surf Forecasts:
E-Bay surf forecast from 4 Sep 2026:
- Best quality surf: Thursday 10 Sep, 1AM (local time) - 3ft (0.9m), 14s period, SSW swell with glassy winds.
- Most powerful swell: Wednesday 9 Sep, 1AM (local time) - 4.5ft (1.4m), 16s period, S swell with 989 kJ wave energy.
- Next surfable swell (1★+): Thursday 10 Sep, 1AM (local time) - 3ft (0.9m), 14s period with SSW 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 Thursday (Sep 10) at 1AM. The primary swell is predicted to be 0.9m and 14s period. 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 1.4m 16s and forecast to arrive on Wednesday (Sep 09) 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 1.7m 6s period and expected on Saturday (Sep 05) at 1PM.
| Wave Type | Time (WIB) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 1AM (Thu 10th Sep) | 3ft (0.9m) 14s |
| Best Surf | 1AM (Thu 10th Sep) | 3ft (0.9m) 14s |
| Most Powerful | 1AM (Wed 9th Sep) | 4.5ft (1.4m) 16s |
Table - best surf conditions forecast for E-Bay over the next 16 days.
The Lowdown
Right, folks, Rusty here. Let’s have a look at the long-range picture for the only spot on the cards, E-Bay.
We’ve got a bit of a slow start here. The forecast shows a run of poor conditions right through the first few days, with onshore winds and choppy surf. Don’t bother paddling out for the rest of the week; it’s a write-off. The water temp is sitting at 85°F, which is about 1°F above the norm for this time of year, so nothing too unusual there.
The first real glimmer of hope comes on the morning of Friday the 11th. The wind drops to glassy, and while the swell is a modest 4ft from the SSW, that 16-second period has some real grunt to it. The combined energy is moderate (761), and it’s a reef break, so that long-period groundswell will line up nicely. It’s still a bit of a gamble with the inconsistency, but it’s the first clean look we get.
The real standout window, though, starts on Saturday the 12th. The morning kicks off with glassy conditions, a 3ft SSW swell, but the period is a massive 20 seconds. That’s very long period groundswell, and the combined energy jumps to 1030 (moderate-to-strong). The afternoon gets even better: 4ft from the SSW, 19-second period, glassy, with a combined energy of 1444 (strong). This is the best on offer for the whole forecast. Sets will be clean and powerful, but it’s a reef set-up, so it’s for experienced surfers only. The crowds are a possibility, but for that quality, it’s worth the gamble.
Sunday the 13th holds some size, with 5ft from the SSW in the morning, but the wind swings cross-onshore, so it’ll be a bit lumpy. The energy is still strong (1345), but the clean conditions are gone.
The tail end of the second week also looks promising, especially on Friday the 18th. The morning shows glassy winds, a 5ft SSW swell with a 17-second period, and combined energy of 1029 (strong). That’s another excellent window for advanced surfers, though it’s deep in the forecast, so treat it as a promising look rather than a guarantee. The Saturday after that pushes 5ft, but the cross-onshore wind will spoil it.
To sum it up: the first week is a bust. The standout is Saturday the 12th at E-Bay, with glassy conditions and a powerful, long-period SSW swell. If you’re an experienced surfer, that’s the one to circle on the calendar. The second week has a couple of other clean windows, but they’re less certain this far out.
Rusty.
Short Range ForecastLight rain (total 4mm), mostly falling on Sun afternoon. Warm (max 29°C on Sat morning, min 27°C on Fri night). Wind will be generally light. | Days 5-7 Weather SummaryHeavy rain (total 29mm), heaviest during Tue morning. Warm (max 28°C on Mon afternoon, min 26°C on Tue night). Wind will be generally light. | |||||||||||||||||||
Fri 4 | Saturday 5 | Sunday 6 | Monday 7 | Tuesday 8 | Wednesday 9 | Thursday 10 | ||||||||||||||
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 13 | S 16 | S 17 | S 17 | S 14 | S 16 | S 17 | S 16 | S 15 | S 14 | S 21 | S 19 | S 18 | S 16 | S 15 | S 15 | SSW 14 | SSW 16 | SSW 17 | SSW 16 |
Wave Graph | ||||||||||||||||||||
225 | 185 | 579 | 546 | 268 | 522 | 587 | 600 | 418 | 294 | 308 | 574 | 871 | 989 | 726 | 441 | 346 | 661 | 702 | 636 | |
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 | cross-on | on | glassy | cross-on | on | glassy |
High Tide | 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 | 5:30AM1.17m | 6:01PM0.98m | ||||||||
Low Tide | 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 | 11:55AM0.07m | 11:48PM0.11m | |||||||
— | — | 6:18 | — | — | 6:18 | — | — | 6:18 | — | — | 6:18 | — | — | 6:18 | — | — | 6:16 | — | — | |
6:23 | — | — | 6:23 | — | — | 6:23 | — | — | 6:22 | — | — | 6:22 | — | — | 6:22 | — | — | 6:22 | — | |
mm | — | — | — | — | — | — | 2 | — | 2 | 2 | 5 | 5 | 1 | 7 | 2 | — | 4 | 3 | 2 | 6 |
Temp °C | 28 | 28 | 29 | 28 | 28 | 28 | 28 | 28 | 28 | 28 | 27 | 27 | 28 | 27 | 27 | 28 | 28 | 27 | 28 | 27 |
Feels °C | 30 | 29 | 30 | 29 | 28 | 29 | 28 | 28 | 30 | 30 | 27 | 29 | 31 | 30 | 30 | 30 | 32 | 31 | 32 | 31 |
Swell 1 Height (m) Direction Period (s) | SSW 13 | SSW 13 | S 17 | S 17 | S 14 | S 16 | S 17 | S 16 | S 15 | S 14 | S 13 | S 19 | S 18 | S 16 | S 15 | SSE 12 | SSE 10 | SSW 16 | SSW 17 | SSW 16 |
225 | 173 | 579 | 546 | 268 | 522 | 587 | 600 | 418 | 294 | 219 | 574 | 871 | 989 | 726 | 405 | 227 | 661 | 702 | 636 | |
Swell 2 Height (m) Direction Period (s) | SSE 8 | S 16 | WNW 9 | SSW 17 | S 18 | S 20 | S 13 | S 24 | SSW 21 | SSW 20 | S 21 | S 12 | SSE 9 | SSE 9 | SSE 13 | S 15 | SSW 14 | SSE 10 | SSE 10 | SSE 10 |
64 | 185 | 8 | 119 | 219 | 276 | 84 | 11 | 45 | 129 | 308 | 107 | 168 | 131 | 290 | 441 | 346 | 241 | 210 | 152 | |
Swell 3 Height (m) Direction Period (s) | S 18 | WNW 8 | W 13 | WNW 8 | S 21 | W 11 | SSW 16 | S 24 | W 10 | SSE 18 | SSE 16 | SSE 16 | S 12 | — | NW 10 | S 19 | SSW 18 | W 10 | W 11 | SW 26 |
54 | 6 | 4 | 7 | 9 | 9 | 295 | 11 | 2 | 31 | 26 | 25 | 103 | — | 4 | 30 | 182 | 2 | 2 | 26 | |
Wind waves Height (m) Direction Period (s) | — | SSE 5 | SE 6 | SSE 7 | SSE 7 | SSE 8 | SSE 8 | SSE 8 | SSE 8 | SSE 8 | SSE 9 | SSE 9 | — | — | SSE 9 | SSE 4 | — | SSE 9 | — | — |
— | 56 | 176 | 199 | 228 | 267 | 274 | 315 | 270 | 270 | 304 | 251 | — | — | 137 | 17 | — | 146 | — | — | |
Nearest Offshore or Glassy | ||||||||||||||||||||
Distance (km) | 0 | 154 | 154 | 478 | 6 | 6 | 6 | 6 | 6 | 6 | 6 | 0 | 0 | 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.










