Surf Forecasts:
E-Bay surf forecast from 25 Aug 2026:
- Best quality surf: Wednesday 26 Aug, 4AM (local time) - 3.5ft (1.0m), 13s period, S swell with glassy winds.
- Most powerful swell: Thursday 27 Aug, 7PM (local time) - 5ft (1.5m), 18s period, SSW swell with 1,302 kJ wave energy.
- Next surfable swell (1★+): Wednesday 26 Aug, 4AM (local time) - 3.5ft (1.0m), 13s 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 Wednesday (Aug 26) at 4AM. The primary swell is predicted to be 1.0m and 13s 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 1.5m 18s and forecast to arrive on Thursday (Aug 27) at 7PM. Winds are predicted to be onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.1m 8s period and expected on Saturday (Aug 29) at 4PM.
| Wave Type | Time (WIB) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 4AM (Wed 26th Aug) | 3.5ft (1.0m) 13s |
| Best Surf | 4AM (Wed 26th Aug) | 3.5ft (1.0m) 13s |
| Most Powerful | 7PM (Thu 27th Aug) | 5ft (1.5m) 18s |
Table - best surf conditions forecast for E-Bay over the next 16 days.
The Lowdown
Alright, surfers, let's get into it. This is Rusty, and I'm looking at a long-range forecast for E-Bay.
First off, the water temp at E-Bay is sitting at 85°, with a tiny anomaly of 0.9°, so it's pretty much bang on average for this time of year.
We've got a few windows of surf across the next 16 days, but don't go planning your week around it. The real action kicks off on Tuesday, August 25th, with a small but promising SSW groundswell coming in at 4 ft, a period of 15 seconds, and a combined wave energy of 683 (moderate). The wind is a light onshore breeze from the SE, so it's a bit of a battle. The conditions are described as marginal, so it's a session for the dedicated.
The standout of the whole period is Wednesday, August 26th. Early morning we’ve got glassy conditions with the wind swinging light ESE, and the swell is 3 ft from the SSW with a 13-second period, giving us a combined energy of 327 (moderate). It's not a big swell, but with that glassy surface, the wave quality should be pure. The afternoon holds the same, with light SW winds. This is your best chance for a clean, fun session.
Things get real interesting on Thursday, August 27th. The swell jumps to 5 ft from the SSW, with a long 18-second period and a combined energy of 1570 (strong). That's serious energy. But the wind is onshore from the SSE, and there are thunderstorms about. It's a bit of a beast, likely too powerful for beginners at that size. This is expert territory.
We then hit a bit of a lull from Friday, August 28th, through the weekend. The swell drops back to 3 ft or less, and the wind is generally messy. The end of the first week and into the second week sees a lot of "marginal" and "poor" conditions, with mostly onshore winds and some stormy weather. There's a gap of several days where it's not really worth paddling out.
Looking farther out, around Tuesday, September 1st, we see a pulse of 5 ft SSW swell (energy 1068 - strong), but the wind is cross-onshore, so it'll be choppy. The later part of the second week, around September 8th and 9th, shows a building swell again, with a solid 5 ft from the SSW and a long 18-second period, but again, the wind is a problem. The forecast confidence for these late dates is lower, so it's a "watch and wait" situation.
For the standout, it's got to be Wednesday, August 26th. The swell is small (3 ft), but the glassy conditions and clean SSW swell direction make it the pick of the bunch. It's a true, clean, and fun morning session. For the big wave hunters, the Thursday the 27th and the swells around September 9th are the ones to watch, but they'll need the wind to cooperate.
Rusty.
Short Range ForecastHeavy rain (total 23mm), heaviest during Thu night. Warm (max 28°C on Tue morning, min 26°C on Tue night). Wind will be generally light. | Days 4-6 Weather SummaryModerate rain (total 18mm), heaviest on Sun morning. Warm (max 28°C on Fri afternoon, min 27°C on Fri morning). Wind will be generally light. | ||||||||||||||||||||
Tuesday 25 | Wednesday 26 | Thursday 27 | Friday 28 | Saturday 29 | Sunday 30 | Monday 31 | |||||||||||||||
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 15 | S 14 | S 14 | SSW 13 | SSW 13 | SSW 16 | SSW 20 | SSW 18 | SSW 17 | SSW 16 | SSW 15 | SSW 14 | S 14 | SSW 14 | SSW 13 | SSW 21 | SSW 19 | SSW 19 | SSW 18 | SSW 18 | SSW 17 |
Wave Graph | |||||||||||||||||||||
675 | 508 | 383 | 295 | 290 | 215 | 671 | 1175 | 1201 | 1038 | 806 | 536 | 423 | 308 | 236 | 343 | 424 | 665 | 842 | 1026 | 1125 | |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | on | on | on | glassy | glassy | on | cross-on | on | on | cross-on | on | on | cross-on | on | cross-on | on | on | on | on | on | on |
High Tide | 5:20PM0.66m | 5:22AM1.04m | 5:55PM0.75m | 5:56AM1.10m | 6:25PM0.85m | 6:27AM1.13m | 6:54PM0.94m | 6:56AM1.14m | 7:22PM1.02m | 7:25AM1.12m | 7:50PM1.08m | 7:53AM1.07m | 8:20PM1.12m | ||||||||
Low Tide | 10:20PM0.29m | 11:54AM0.19m | 11:09PM0.23m | 12:15PM0.13m | 11:50PM0.17m | 12:39PM0.08m | 00:29AM0.13m | 1:04PM0.04m | 1:07AM0.09m | 1:31PM0.01m | 1:45AM0.08m | 1:59PM0.00m | 2:24AM0.09m | ||||||||
6:22 | — | — | 6:22 | — | — | 6:22 | — | — | 6:22 | — | — | 6:22 | — | — | 6:20 | — | — | 6:20 | — | — | |
— | 6:27 | — | — | 6:25 | — | — | 6:25 | — | — | 6:25 | — | — | 6:25 | — | — | 6:24 | — | — | 6:24 | — | |
mm | 1 | — | 4 | 2 | 2 | 3 | 2 | 2 | 7 | — | — | 3 | 2 | 2 | 2 | 4 | 2 | 3 | 2 | 3 | 5 |
Temp °C | 28 | 28 | 27 | 27 | 27 | 27 | 28 | 28 | 27 | 27 | 28 | 27 | 28 | 28 | 28 | 27 | 27 | 27 | 27 | 27 | 27 |
Feels °C | 31 | 31 | 30 | 32 | 31 | 31 | 31 | 31 | 29 | 30 | 30 | 30 | 31 | 30 | 30 | 31 | 30 | 31 | 30 | 30 | 31 |
Swell 1 Height (m) Direction Period (s) | SSW 15 | S 14 | S 14 | SSW 13 | SSW 13 | SSE 8 | SSW 20 | SSW 18 | SSW 17 | SSW 16 | SSW 15 | SSW 14 | S 14 | SSW 14 | SSW 13 | SSW 21 | SSE 8 | S 12 | SSW 18 | SSW 18 | SSW 17 |
675 | 508 | 383 | 295 | 290 | 66 | 671 | 1175 | 1201 | 1038 | 806 | 536 | 423 | 308 | 236 | 343 | 89 | 290 | 842 | 1026 | 1125 | |
Swell 2 Height (m) Direction Period (s) | SSE 7 | SSE 7 | SSE 8 | SSE 8 | SSE 8 | SSW 16 | SSW 15 | SW 14 | SSE 7 | SSE 7 | SSE 7 | SSW 18 | S 22 | SW 22 | SSW 22 | S 13 | SSW 19 | SSW 19 | SSE 9 | SSE 9 | SSE 9 |
41 | 54 | 60 | 62 | 66 | 215 | 305 | 395 | 94 | 114 | 101 | 107 | 9 | 20 | 92 | 85 | 424 | 665 | 138 | 135 | 138 | |
Swell 3 Height (m) Direction Period (s) | WNW 9 | S 9 | WNW 8 | SSW 18 | S 24 | SSW 12 | SSE 8 | — | — | WNW 11 | WNW 10 | WNW 10 | S 26 | SSW 22 | WNW 10 | SSW 13 | S 13 | SSW 12 | S 12 | S 11 | S 11 |
8 | 6 | 7 | 32 | 11 | 115 | 64 | — | — | 12 | 11 | 10 | 13 | 49 | 9 | 65 | 163 | 99 | 72 | 40 | 21 | |
Wind waves Height (m) Direction Period (s) | — | — | — | — | — | — | SE 7 | SSE 8 | — | — | — | SSE 7 | SSE 8 | SSE 8 | SSE 7 | SSE 8 | — | — | — | — | — |
— | — | — | — | — | — | 33 | 81 | — | — | — | 99 | 120 | 138 | 104 | 87 | — | — | — | — | — | |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 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.











