Surf Forecasts:
E-Bay surf forecast from 29 Aug 2026:
- Best quality surf: Thursday 3 Sep, 4AM (local time) - 3.5ft (1.0m), 16s period, SSW swell with glassy winds.
- Most powerful swell: Monday 31 Aug, 10PM (local time) - 4.5ft (1.4m), 18s period, SSW swell with 1,245 kJ wave energy.
- Next surfable swell (1★+): Thursday 3 Sep, 4AM (local time) - 3.5ft (1.0m), 16s 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 03) at 4AM. The primary swell is predicted to be 1.0m and 16s 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 18s and forecast to arrive on Monday (Aug 31) 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 1.2m 7s period and expected on Saturday (Sep 05) at 4PM.
| Wave Type | Time (WIB) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 4AM (Thu 3rd Sep) | 3.5ft (1.0m) 16s |
| Best Surf | 4AM (Thu 3rd Sep) | 3.5ft (1.0m) 16s |
| Most Powerful | 10PM (Mon 31st Aug) | 4.5ft (1.4m) 18s |
Table - best surf conditions forecast for E-Bay over the next 16 days.
The Lowdown
Alright folks, it’s Rusty here. Let’s look at what’s coming together at E-Bay.
The next 16 days are a real mixed bag. We’ve got a lot of onshore wind and marginal surf to slog through, but there’s a couple of beautiful windows of glassy, clean conditions hiding in the second week. Don’t get your hopes up for the first week or so, because it’s pretty grim. There’s a stretch of over a week where the surf is either poor or just barely passable, so you’ll be waiting a while.
Alright, let’s start with the immediate outlook. Saturday the 29th into the start of the week is looking rough. We’ve got a risk of thunderstorms and a moderate breeze from the south-southeast, with wave heights around 2 ft to 5 ft out of the SSW. The swell energy is moderate (377 to 1191), but it’s all onshore wind, making it choppy and messy. The water temp is a warm 86°, which is about normal for this time of year. This is not the time to paddle out unless you’re desperate.
Moving into the middle of the first week (Wednesday the 2nd and Thursday the 3rd), the swell drops a bit to 3 ft to 4 ft, and the energy fades into the mid-hundreds (756 down to 372). The wind stays onshore and cross-onshore, so the surface stays bumpy. It’s still marginal at best.
Friday the 4th is a write-off – poor surf with 3 ft waves and weak energy in the 200s. Skip it.
The weekend of the 5th and 6th of September brings a slight bump in size (4 ft on Saturday morning) from the S, but the wind is onshore and cross-onshore, so it’s not going to be pretty. The water looks agitated.
Now, here’s where things get interesting. If you’ve got patience, the real payoff comes around the 8th of September. Tuesday morning, the 8th, we see a window of glassy conditions with a light southwesterly breeze. The swell is tiny at 1 ft from the S, but it’s a very long period groundswell (21 seconds), which means it’ll have that lully, powerful feel. The energy is low (254), but the clean conditions are a massive plus.
The standout of the whole forecast, without a doubt, is Wednesday the 9th of September. Morning and afternoon both have glassy conditions – calm winds and a 3 ft S swell with a solid 16-second period. The energy is moderate (515 and 477). This is a proper, clean, glassy day with a nice long-period swell. The wind is perfect, the waves will be clean. This is the one to circle on the calendar.
Thursday the 10th starts similarly glassy in the morning, but the wind goes cross-onshore in the afternoon, so get out early.
The following weekend, the 12th of September, is another absolute gem. Saturday morning we’ve got a light northeasterly breeze going glassy, with a 3 ft SSW swell and 15-second period. By the afternoon, it’s dead calm and glassy, with a 4 ft SSW swell. The energy is moderate (519 and 545). This is another top-tier day.
Sunday the 13th has a glassy morning again, with a 3 ft SSW swell, so it’s a good way to finish the run.
So, to wrap it up: the first week is a write-off. The best on offer is a tie between Wednesday the 9th and Saturday the 12th of September. Glassy, clean, 3 ft to 4 ft swell with a nice long period – that’s the stuff you wait for. E-Bay is a reef, so it handles those long-period swells well. Crowds are sometimes a factor, so be prepared for company on those days.
Keep your eyes on the sky and be ready to go.
Rusty.
Short Range ForecastModerate rain (total 17mm), heaviest on Sun morning. Warm (max 29°C on Tue morning, min 27°C on Sat night). Wind will be generally light. | Days 5-7 Weather SummaryModerate rain (total 17mm), heaviest on Thu night. Warm (max 29°C on Tue afternoon, min 27°C on Tue night). Wind will be generally light. | |||||||||||||||||||
Sat 29 | Sunday 30 | Monday 31 | Tuesday 1 | Wednesday 2 | Thursday 3 | Friday 4 | ||||||||||||||
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 13 | SSW 21 | SSW 19 | SSW 18 | SSW 18 | SSW 18 | SSW 18 | SSW 17 | SSW 16 | SSW 16 | SSW 16 | SSW 16 | SSW 16 | SSW 15 | SSW 14 | SSW 14 | SSW 13 | SSW 13 | S 13 |
Wave Graph | ||||||||||||||||||||
308 | 236 | 339 | 424 | 644 | 887 | 1038 | 1231 | 1134 | 1081 | 870 | 733 | 575 | 568 | 376 | 366 | 356 | 232 | 229 | 215 | |
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 | on | cross-on | on | on |
High Tide | 7:22PM1.02m | 7:25AM1.12m | 7:50PM1.08m | 7:53AM1.07m | 8:20PM1.12m | 8:23AM1.00m | 8:53PM1.14m | 8:54AM0.91m | 9:30PM1.12m | 9:28AM0.80m | 10:17PM1.07m | 10:10AM0.68m | 11:19PM1.01m | |||||||
Low Tide | 1:07AM0.09m | 1:31PM0.01m | 1:45AM0.08m | 1:59PM0.00m | 2:24AM0.09m | 2:28PM0.01m | 3:05AM0.12m | 3:00PM0.04m | 3:51AM0.18m | 3:35PM0.08m | 4:46AM0.25m | 4:17PM0.15m | ||||||||
— | — | 6:20 | — | — | 6:20 | — | — | 6:20 | — | — | 6:20 | — | — | 6:20 | — | — | 6:18 | — | — | |
6:25 | — | — | 6:24 | — | — | 6:24 | — | — | 6:24 | — | — | 6:24 | — | — | 6:23 | — | — | 6:23 | — | |
mm | 2 | 4 | 2 | 2 | — | 3 | — | 4 | — | — | 4 | 1 | — | 1 | 1 | 1 | 7 | 2 | 2 | 15 |
Temp °C | 28 | 28 | 28 | 28 | 28 | 28 | 28 | 28 | 29 | 29 | 28 | 28 | 28 | 28 | 28 | 28 | 27 | 28 | 28 | 27 |
Feels °C | 30 | 31 | 31 | 31 | 31 | 31 | 30 | 31 | 31 | 32 | 31 | 31 | 30 | 32 | 32 | 31 | 31 | 31 | 30 | 29 |
Swell 1 Height (m) Direction Period (s) | SSW 14 | SSW 13 | SSW 21 | SSE 8 | S 12 | SSW 18 | SSW 18 | SSW 18 | SSW 17 | SSW 16 | SSW 16 | SSW 16 | SSW 16 | SSW 16 | SSW 15 | SSW 14 | SSW 14 | SSW 13 | SSW 13 | S 13 |
308 | 236 | 339 | 122 | 359 | 887 | 1038 | 1231 | 1134 | 1081 | 870 | 733 | 575 | 568 | 376 | 366 | 356 | 232 | 229 | 215 | |
Swell 2 Height (m) Direction Period (s) | SW 22 | SSW 22 | S 13 | SSW 19 | SSW 18 | SSE 12 | S 11 | S 11 | — | — | SSE 8 | W 17 | — | SSE 8 | SSE 8 | SSE 8 | SSE 8 | S 18 | S 17 | S 16 |
20 | 92 | 85 | 424 | 644 | 242 | 41 | 21 | — | — | 96 | 23 | — | 92 | 65 | 49 | 49 | 6 | 52 | 127 | |
Swell 3 Height (m) Direction Period (s) | SSW 22 | WNW 10 | SSW 13 | S 13 | SW 12 | SSW 12 | W 10 | — | — | — | — | — | — | W 16 | WNW 8 | WNW 8 | WNW 8 | WNW 7 | — | SE 7 |
49 | 9 | 66 | 163 | 73 | 28 | 8 | — | — | — | — | — | — | 20 | 6 | 6 | 6 | 5 | — | 14 | |
Wind waves Height (m) Direction Period (s) | SSE 6 | SSE 7 | SSE 7 | — | — | S 12 | SSE 9 | SSE 9 | SSE 9 | SSE 9 | — | SSE 8 | SSE 8 | — | — | — | — | SSE 8 | SSE 8 | SSE 5 |
104 | 91 | 101 | — | — | 276 | 143 | 119 | 116 | 137 | — | 99 | 96 | — | — | — | — | 69 | 66 | 19 | |
Nearest Offshore or Glassy | ||||||||||||||||||||
Distance (km) | 378 | 6 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 6 | 0 | 6 | 0 | 0 | 0 | 0 | 0 | 2 | 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.











