
Surf Forecasts:
E-Bay surf forecast from 13 Jul 2026:
- Best quality surf: Monday 20 Jul, 1AM (local time) - 4.5ft (1.3m), 18s period, S swell with glassy winds.
- Most powerful swell: Monday 20 Jul, 7AM (local time) - 4.5ft (1.4m), 17s period, S swell with 1,187 kJ wave energy.
- Next surfable swell (1★+): Wednesday 15 Jul, 10PM (local time) - 3.5ft (1.0m), 15s 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 (Jul 15) at 10PM. The primary swell is predicted to be 1.0m and 15s 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 17s and forecast to arrive on Monday (Jul 20) at 7AM. Winds are predicted to be glassy at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.9m 7s period and expected on Monday (Jul 20) at 1AM.
| Wave Type | Time (WIB) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 10PM (Wed 15th Jul) | 3.5ft (1.0m) 15s |
| Best Surf | 1AM (Mon 20th Jul) | 4.5ft (1.3m) 18s |
| Most Powerful | 7AM (Mon 20th Jul) | 4.5ft (1.4m) 17s |
Table - best surf conditions forecast for E-Bay over the next 16 days.
The Lowdown
Alright, let me get my boardshorts on and look at this forecast for E-Bay.
Right off the bat, it’s a bit of a slow start. We’ve got a long period, 21-second groundswell rolling in on Monday the 13th, but it’s blowing onshore from the SSE at 9 mph, and the water temp is a balmy 86°, which is about average for this time of year. The conditions are just plain poor for a paddle session. The combined energy is moderate at 662, but the wind is just ruining it.
The pattern actually stays pretty marginal for a solid week. Tuesday through to the following Monday, we’re looking at waist-high waves at best, with the wind mostly onshore or cross-onshore from the SSE or ESE. It’s a real struggle to find a clean wave. The energy dips and rises, but the wind keeps it messy. For a few days there, it’s more of a kiteboarding setup than a surfable wave.
Now, the real story starts to turn around on Saturday the 18th. Saturday afternoon, the wind drops to a glassy 3 mph from the SSW. The swell is still small, around 3 ft from the SSW, but the glassy conditions are a massive positive. The energy is weak at 245, but it’s clean. This is the first sign of hope.
Then Sunday the 19th morning is a gem. Dead calm, glassy conditions, and still that 3 ft, 13-second SSW swell. It’s small, but it’s perfect for a longboard. The energy is still weak at 264. This is a standout for a relaxed, clean session.
After that, Monday the 20th brings a pulse of energy – the combined energy jumps to 1206 (strong wave energy) with a 5 ft S swell. But the wind is onshore from the SSE at 6 mph, and it’s a bit of a messy one. On Tuesday the 21st, the wind picks up to 9 mph from the ESE, making it choppy. Not the best.
The real winner for the whole forecast window is the final weekend. From Saturday the 25th through to Monday the 28th, we get a run of glassy conditions. The wind is light from the ESE, NE, and even calm at times. The swell is small, around 2 ft to 3 ft from the SSW, but the energy is weak to moderate. The standouts here are Saturday the 25th and Sunday the 26th, with glassy conditions and a clean 3 ft to 3 ft SSW swell. It’s not going to be a big day, but for a fun, clean surf on a reef break, it’s the best on offer. E-Bay is a fairly consistent reef break, but it can get crowded sometimes, so factor that in.
So, to sum it up for you: forget the first week, it’s a write-off. The best bet is the glassy, clean conditions on the weekend of the 25th and 26th. It’s a small swell window, but it’ll be a good one for a longboard or a mini-mal.
Rusty.
Short Range ForecastLight rain (total 7mm), mostly falling on Mon afternoon. Warm (max 28°C on Mon afternoon, min 27°C on Mon afternoon). Wind will be generally light. | Days 5-7 Weather SummaryModerate rain (total 19mm), heaviest on Sat night. Warm (max 29°C on Fri morning, min 26°C on Sat night). Wind will be generally light. | ||||||||||||||||||||
Mon 13 | Tuesday 14 | Wednesday 15 | Thursday 16 | Friday 17 | Saturday 18 | Sunday 19 | |||||||||||||||
PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | |
Swell Height Map | |||||||||||||||||||||
Wave Height (m) Direction Period (s) | S 21 | S 19 | S 18 | S 17 | S 16 | S 15 | S 15 | S 15 | SSW 15 | SSW 15 | SSW 15 | SSW 16 | SSW 15 | SSW 15 | SSW 14 | SSW 14 | SSW 13 | SSW 13 | S 18 | S 18 | S 17 |
Wave Graph | |||||||||||||||||||||
323 | 470 | 632 | 725 | 989 | 791 | 648 | 435 | 381 | 305 | 318 | 357 | 309 | 246 | 301 | 233 | 239 | 229 | 239 | 1044 | 1160 | |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | on | on | on | on | on | cross-on | on | glassy | cross-on | on | on | on | on | glassy | on | glassy | glassy | glassy | cross | glassy | on |
High Tide | 5:32PM0.69m | 5:51AM1.30m | 6:25PM0.76m | 6:41AM1.34m | 7:15PM0.83m | 7:28AM1.33m | 8:02PM0.89m | 8:13AM1.29m | 8:48PM0.94m | 8:55AM1.20m | 9:33PM0.98m | 9:36AM1.08m | 10:20PM0.99m | 10:16AM0.95m | |||||||
Low Tide | 10:50PM0.10m | 12:35PM0.04m | 11:48PM0.06m | 1:19PM0.00m | 00:42AM0.05m | 1:59PM-0.01m | 1:33AM0.06m | 2:36PM0.00m | 2:22AM0.11m | 3:12PM0.03m | 3:10AM0.17m | 3:45PM0.08m | 3:58AM0.25m | ||||||||
— | — | 6:28 | — | — | 6:28 | — | — | 6:28 | — | — | 6:28 | — | — | 6:28 | — | — | 6:28 | — | — | 6:28 | |
6:29 | — | — | 6:29 | — | — | 6:29 | — | — | 6:29 | — | — | 6:29 | — | — | 6:29 | — | — | 6:30 | — | 6:30 | |
mm | 2 | — | 1 | — | 2 | — | 1 | 1 | — | — | 2 | 1 | — | 4 | 2 | 3 | 6 | 1 | 3 | 6 | 1 |
Temp °C | 28 | 28 | 27 | 28 | 27 | 28 | 28 | 27 | 28 | 28 | 28 | 29 | 29 | 28 | 28 | 28 | 27 | 27 | 28 | 27 | 27 |
Feels °C | 30 | 30 | 29 | 31 | 30 | 32 | 32 | 31 | 32 | 31 | 31 | 32 | 33 | 33 | 32 | 32 | 31 | 32 | 32 | 31 | 30 |
Swell 1 Height (m) Direction Period (s) | S 11 | S 11 | S 18 | S 17 | S 16 | S 15 | S 15 | S 15 | SSW 15 | SSW 15 | SSW 15 | SSW 16 | SSW 15 | SSW 15 | SSW 14 | SSW 14 | SSW 13 | SSW 13 | SSW 13 | S 18 | S 17 |
311 | 305 | 632 | 725 | 989 | 791 | 648 | 435 | 381 | 305 | 318 | 357 | 309 | 246 | 301 | 233 | 239 | 229 | 173 | 1044 | 1160 | |
Swell 2 Height (m) Direction Period (s) | S 21 | S 19 | S 11 | S 11 | SE 7 | S 12 | SSE 8 | SSE 7 | SSE 7 | SSE 9 | SSE 8 | SSE 8 | SSE 7 | SSE 7 | SSE 7 | SSE 7 | SSE 7 | SSE 7 | S 18 | SSE 7 | SSE 7 |
323 | 470 | 253 | 202 | 2 | 177 | 32 | 20 | 29 | 59 | 70 | 45 | 42 | 29 | 27 | 28 | 27 | 31 | 239 | 43 | 66 | |
Swell 3 Height (m) Direction Period (s) | S 15 | SSW 14 | S 13 | SSW 13 | S 20 | SSE 8 | WNW 10 | — | WNW 9 | WNW 9 | WNW 9 | WNW 8 | WNW 8 | WNW 8 | WNW 8 | WNW 8 | SE 7 | S 21 | SSE 7 | SSE 7 | WNW 8 |
17 | 36 | 14 | 59 | 121 | 23 | 33 | — | 29 | 16 | 15 | 14 | 13 | 13 | 13 | 12 | 8 | 35 | 42 | 42 | 12 | |
Wind waves Height (m) Direction Period (s) | SSE 4 | SSE 4 | SSE 4 | SE 4 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | SSE 7 | SSE 5 |
11 | 15 | 7 | 4 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 78 | 34 | |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 2 | 0 | 0 | 0 | 0 | 0 | 6 | 0 | 0 | 0 | 6 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 113 | 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.











