Surf Forecasts:
E-Bay surf forecast from 21 Jul 2026:
- Best quality surf: Monday 27 Jul, 4AM (local time) - 1.5ft (0.4m), 13s period, SSW swell with glassy winds.
- Most powerful swell: Tuesday 21 Jul, 4PM (local time) - 4ft (1.2m), 14s period, S swell with 573 kJ wave energy.
- Next surfable swell (1★+): Monday 27 Jul, 4AM (local time) - 1.5ft (0.4m), 13s 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 Monday (Jul 27) at 4AM. The primary swell is predicted to be 0.4m 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 1.2m 14s and forecast to arrive on Tuesday (Jul 21) at 4PM. 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 10s period and expected on Thursday (Jul 23) at 4PM.
| Wave Type | Time (WIB) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 4AM (Mon 27th Jul) | 1.5ft (0.4m) 13s |
| Best Surf | 4AM (Mon 27th Jul) | 1.5ft (0.4m) 13s |
| Most Powerful | 4PM (Tue 21st Jul) | 4ft (1.2m) 14s |
Table - best surf conditions forecast for E-Bay over the next 16 days.
The Lowdown
Alright folks, Rusty here. Let’s get into it.
Well, I gotta be straight with you – this outlook for E-Bay is a bit of a heartbreaker for the next week and a half. We’ve got a long stretch of pretty much nothing worth paddling out for. The wind is mostly onshore from the southeast, and the swell is tiny and weak. From Tuesday the 21st of July right through to the end of the month, the energy is just pathetic. The combined swell energy is barely reaching three digits most days, sinking as low as 49 (weak energy) on the Friday morning. It’s just poor surf, day after day. There’s a gap of about 10 days here where you’d be better off doing something else.
Now, hold on, because things take a proper turn as we head into August. The standout window is the first weekend of the month. On Saturday, the 1st of August, the conditions flip. We’re looking at clean, glassy surf with a solid S swell pushing 5ft to 6ft. The combined energy jumps to a strong 1316 on the Saturday morning, and the wind is dead calm – glassy. This is groundswell too, with a period of 15 to 16 seconds, so those waves are packing some punch. It’s a reef break, so that long period energy will shape up nicely.
The water temp is sitting at 86°F, which is about average for this time of year, so no dramas there.
This is more of an advanced wave at that size, over 5ft, so it’s not for the beginners. But for anyone who knows what they’re doing, this is the best on offer by a long shot. Sunday the 2nd of August keeps the same vibe with 5ft S swell and glassy conditions in the morning, turning into a clean cross-offshore breeze in the afternoon. The energy stays strong, around 1057 to 1103. The early part of the following week on Monday the 3rd still offers very good, clean surf with 4ft S swell.
After that, the swell hangs around but the wind starts to get a bit cross-onshore again, so the quality drops back to marginal. The real gold is that first weekend of August. It’s a long way out, so keep an eye on it, but it’s promising.
Rusty.
Short Range ForecastHeavy rain (total 48mm), heaviest during Tue night. Warm (max 28°C on Tue afternoon, min 26°C on Wed night). Wind will be generally light. | Days 4-6 Weather SummaryHeavy rain (total 87mm), heaviest during Sun morning. Warm (max 28°C on Fri morning, min 25°C on Sun afternoon). Wind will be generally light. | ||||||||||||||||||||
Tuesday 21 | Wednesday 22 | Thursday 23 | Friday 24 | Saturday 25 | Sunday 26 | Monday 27 | |||||||||||||||
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) | S 14 | S 14 | S 13 | S 13 | S 13 | S 12 | SSW 14 | SSW 15 | SSW 16 | S 19 | S 18 | S 17 | S 16 | S 15 | SSW 14 | S 14 | S 14 | SSW 14 | SSW 17 | SSW 13 | SSW 16 |
Wave Graph  | |||||||||||||||||||||
 kJ | 691 | 573 | 356 | 219 | 161 | 110 | 41 | 45 | 25 | 29 | 57 | 86 | 124 | 110 | 74 | 94 | 96 | 104 | 113 | 57 | 142 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-on | on | on | on | on | cross-on | on | on | on | on | on | on | on | on | on | on | cross-on | cross-on | on | on | cross-on |
High Tide | 10:58AM0.82m | 00:00AM0.95m | 11:45AM0.69m | 00:59AM0.92m | 12:52PM0.59m | 2:05AM0.90m | 2:22PM0.53m | 3:11AM0.91m | 3:45PM0.53m | 4:10AM0.95m | 4:47PM0.56m | 5:00AM1.00m | 5:35PM0.61m | ||||||||
Low Tide | 4:50PM0.18m | 5:46AM0.39m | 5:26PM0.23m | 7:00AM0.43m | 6:10PM0.27m | 8:57AM0.42m | 7:07PM0.30m | 10:47AM0.36m | 8:18PM0.31m | 11:29AM0.30m | 9:31PM0.29m | 11:57AM0.24m | 10:31PM0.25m | ||||||||
 |  |  | | | | |  |  | | | | | | | | | | | | | |
 | 6:28 | — | — | 6:28 | — | — | 6:28 | — | — | 6:28 | — | — | 6:28 | — | — | 6:28 | — | — | 6:28 | — | — |
 | — | 6:30 | — | — | 6:30 | — | — | 6:30 | — | — | 6:30 | — | — | 6:30 | — | — | 6:30 | — | — | 6:30 | — |
mm | — | 3 | 16 | 10 | 8 | 10 | 1 | — | — | 4 | 2 | 6 | 1 | 5 | 25 | 17 | 10 | 17 | 7 | 3 | 3 |
Temp °C | 27 | 28 | 27 | 27 | 27 | 27 | 28 | 28 | 28 | 28 | 28 | 27 | 28 | 28 | 27 | 26 | 26 | 26 | 26 | 25 | 27 |
Feels °C | 29 | 30 | 29 | 28 | 29 | 29 | 28 | 28 | 29 | 30 | 30 | 28 | 29 | 30 | 29 | 28 | 30 | 30 | 29 | 28 | 30 |
Swell 1 Height (m) Direction Period (s) | S 14 | S 14 | S 13 | S 13 | S 13 | S 12 | SSW 14 | SSW 15 | SSE 10 | S 19 | S 18 | S 17 | SSE 10 | SSE 10 | SSW 14 | S 14 | S 14 | SSE 9 | SSW 13 | SE 9 | SSE 11 |
| kJ | 691 | 573 | 356 | 219 | 161 | 110 | 41 | 45 | 622 | 29 | 57 | 86 | 427 | 386 | 74 | 94 | 96 | 203 | 54 | 83 | 85 |
Swell 2 Height (m) Direction Period (s) | WNW 9 | S 20 | S 18 | S 17 | S 16 | WSW 18 | SSW 12 | SSW 12 | SSW 16 | SW 15 | SW 15 | SW 16 | S 16 | S 15 | S 15 | S 16 | S 19 | SSW 14 | SSW 17 | SSW 13 | SSW 16 |
| kJ | 16 | 7 | 25 | 53 | 46 | 31 | 27 | 29 | 25 | 8 | 35 | 38 | 124 | 110 | 42 | 19 | 7 | 104 | 57 | 55 | 142 |
Swell 3 Height (m) Direction Period (s) | W 7 | SSW 20 | WNW 8 | SW 19 | SW 19 | SW 18 | SW 18 | WNW 11 | S 20 | SW 18 | WNW 10 | WNW 9 | SW 15 | SW 14 | S 16 | WNW 10 | WNW 10 | S 19 | SSW 17 | SSW 17 | S 20 |
| kJ | 1 | 37 | 6 | 15 | 15 | 49 | 12 | 23 | 8 | 12 | 10 | 8 | 33 | 33 | 20 | 11 | 10 | 27 | 113 | 57 | 30 |
Wind waves Height (m) Direction Period (s) | SSE 7 | SSE 4 | SSE 6 | SSE 6 | SSE 7 | SSE 9 | SSE 9 | SSE 10 | — | SSE 10 | SSE 10 | SSE 10 | — | — | SSE 10 | SSE 9 | SSE 9 | — | SSE 9 | SSE 5 | SSE 9 |
| kJ | 59 | 34 | 60 | 111 | 125 | 267 | 398 | 581 | — | 570 | 527 | 461 | — | — | 319 | 320 | 292 | — | 249 | 37 | 194 |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 6 | 2 | 2 | 6 | 0 | 6 | 6 | 378 | 6 | 154 | 6 | 6 | 6 | 6 | 154 | 0 | 6 | 0 | 0 | 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.
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