Surf Forecasts:
E-Bay surf forecast from 18 Jul 2026:
- Best quality surf: Monday 20 Jul, 1AM (local time) - 4.5ft (1.3m), 18s period, S swell with offshore winds.
- Most powerful swell: Monday 20 Jul, 7AM (local time) - 4.5ft (1.4m), 18s period, S swell with 1,201 kJ wave energy.
- Next surfable swell (1★+): Saturday 18 Jul, 1PM (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 Saturday (Jul 18) at 1PM. The primary swell is predicted to be 0.9m and 14s period. The wind is predicted to be cross-offshore 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 (Jul 20) at 7AM. Winds are predicted to be offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.9m 10s period and expected on Friday (Jul 24) at 4AM.
| Wave Type | Time (WIB) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 1PM (Sat 18th Jul) | 3ft (0.9m) 14s |
| Best Surf | 1AM (Mon 20th Jul) | 4.5ft (1.3m) 18s |
| Most Powerful | 7AM (Mon 20th Jul) | 4.5ft (1.4m) 18s |
Table - best surf conditions forecast for E-Bay over the next 16 days.
The Lowdown
Right, Rusty here again. Let’s break down what’s coming in proper terms.
The first few days are small and tricky. A few clean windows, but you’ll need to time it right around the afternoon storm risks.
Saturday morning the 18th at E-Bay is worth a look. The swell is only 3ft from the SSW with a long 14-second period. Wind is glassy from the NNW. Combined energy sits at 314, so moderate. It’s not a huge day, but it’s a clean one.
Sunday morning the 19th still offers 3ft of SSW swell, but the wind is picking up from the west, keeping it cross-off. Still surfable and clean enough. The energy drops a tad to 285. By the afternoon, the wind goes cross-shore from the SW, and you can just about call it a day.
From Sunday afternoon right through until next week, there’s a long gap. Most days have onshore winds or very small, weak swell. Days like Tuesday and Wednesday are a write-off.
Now for the real highlights. Lock in Monday the 20th. E-Bay switches on with 5ft of S swell, and a long 17 to 19-second period. The combined energy is strong at 1184. Early morning wind is offshore from the NNW, turning glassy by afternoon. Clean, powerful, and for experienced surfers only. The beginners will find it too much.
Skip ahead to Thursday the 30th. The afternoon goes glassy with 3ft of SSW swell at 20 seconds. Energy is 656 – moderate. Small, but clean and long. A good log day.
Then Friday the 31st is the best day of the whole outlook. E-Bay sees 5ft of SSW swell, again with an 18-second period. Energy is very strong at 1327. Clear skies, glassy wind. This is the one to aim for. Excellent conditions for experienced surfers, with proper power and clean faces.
As we roll into August, Saturday the 1st is still good in the morning with 4ft swell and glassy conditions. Sunday the 2nd has the wind dropping to absolutely calm, with 4ft of groundswell. Glassy perfection.
So, call it now: Monday the 20th and Friday the 31st are your best bets. The 31st especially is a cracker.
Rusty.
Short Range ForecastHeavy rain (total 30mm), heaviest during Sat night. Warm (max 28°C on Sat morning, min 25°C on Sat night). Wind will be generally light. | Days 4-6 Weather SummaryModerate rain (total 17mm), heaviest on Thu night. Warm (max 28°C on Tue afternoon, min 26°C on Tue night). Wind will be generally light. | ||||||||||||||||||||
Saturday 18 | Sunday 19 | Monday 20 | Tuesday 21 | Wednesday 22 | Thursday 23 | Friday 24 | |||||||||||||||
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 14 | SSW 14 | SSW 14 | SSW 13 | SSW 13 | S 18 | S 17 | S 16 | S 16 | S 14 | S 14 | S 13 | S 13 | S 13 | S 12 | SSW 15 | SSW 15 | SSW 13 | S 19 | SW 15 | S 16 |
Wave Graph  | |||||||||||||||||||||
 kJ | 301 | 233 | 243 | 229 | 173 | 1039 | 1174 | 1004 | 954 | 691 | 482 | 356 | 219 | 161 | 110 | 42 | 45 | 35 | 29 | 57 | 85 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-off | glassy | off | cross-off | cross | off | cross-off | glassy | glassy | cross-on | cross-on | glassy | on | on | on | on | on | on | on | on | on |
High Tide | 9:33PM0.98m | 9:36AM1.08m | 10:20PM0.99m | 10:16AM0.95m | 11:08PM0.97m | 10:58AM0.82m | 00:00AM0.95m | 11:45AM0.69m | 00:59AM0.92m | 12:52PM0.59m | 2:05AM0.90m | 2:22PM0.53m | 3:11AM0.91m | ||||||||
Low Tide | 3:12PM0.03m | 3:10AM0.17m | 3:45PM0.08m | 3:58AM0.25m | 4:17PM0.13m | 4:49AM0.33m | 4:50PM0.18m | 5:46AM0.39m | 5:26PM0.23m | 7:00AM0.43m | 6:10PM0.27m | 8:57AM0.42m | 7:07PM0.30m | ||||||||
 | |  | | |  |  | |  | | | | |  | | | | | | | | |
 | 6:28 | — | — | 6:28 | — | — | 6:28 | — | — | 6:28 | — | — | 6:28 | — | — | 6:28 | — | — | 6:28 | — | — |
 | — | 6:29 | — | — | 6:30 | — | — | 6:30 | — | — | 6:30 | — | — | 6:30 | — | — | 6:30 | — | — | 6:30 | — |
mm | 4 | 4 | 11 | 5 | 2 | — | — | 1 | 3 | 1 | 2 | 2 | 1 | — | — | — | 1 | 10 | — | — | 12 |
Temp °C | 28 | 28 | 27 | 27 | 26 | 26 | 28 | 27 | 27 | 27 | 28 | 27 | 28 | 28 | 28 | 28 | 28 | 28 | 29 | 28 | 28 |
Feels °C | 32 | 32 | 30 | 28 | 28 | 29 | 32 | 32 | 32 | 30 | 31 | 32 | 31 | 30 | 30 | 29 | 29 | 28 | 30 | 30 | 30 |
Swell 1 Height (m) Direction Period (s) | SSW 14 | SSW 14 | SSW 14 | SSW 13 | SSW 13 | S 18 | S 17 | S 16 | S 16 | S 14 | S 14 | S 13 | S 13 | S 13 | S 12 | SSW 15 | SSW 15 | SSW 13 | SW 15 | SSE 10 | SSE 10 |
| kJ | 301 | 233 | 243 | 229 | 173 | 1039 | 1174 | 1004 | 954 | 691 | 482 | 356 | 219 | 161 | 110 | 42 | 45 | 35 | 8 | 555 | 443 |
Swell 2 Height (m) Direction Period (s) | SSE 7 | SSE 7 | SSE 7 | SSE 7 | S 7 | S 7 | SSE 7 | SSE 8 | SSE 8 | SSE 7 | S 20 | S 18 | S 17 | S 16 | WSW 18 | SW 18 | SSW 12 | SSW 16 | S 19 | SW 15 | S 16 |
| kJ | 38 | 37 | 55 | 42 | 44 | 44 | 31 | 34 | 32 | 27 | 7 | 25 | 52 | 46 | 31 | 12 | 14 | 25 | 29 | 57 | 85 |
Swell 3 Height (m) Direction Period (s) | WNW 8 | WNW 8 | WNW 8 | SSW 21 | S 18 | NNW 4 | W 7 | WNW 8 | WNW 7 | W 11 | SSW 20 | WNW 10 | SW 19 | SW 19 | WNW 10 | SW 18 | SSW 15 | S 20 | SW 18 | S 18 | SW 16 |
| kJ | 13 | 12 | 11 | 44 | 155 | 3 | 9 | 13 | 5 | 2 | 37 | 20 | 15 | 15 | 20 | 12 | 43 | 8 | 12 | 25 | 39 |
Wind waves Height (m) Direction Period (s) | — | — | — | NNW 3 | SW 5 | SW 5 | — | — | — | — | SSE 7 | SSE 7 | SSE 7 | SSE 7 | SSE 9 | SSE 10 | SSE 10 | SSE 10 | SSE 9 | SSE 10 | SSE 10 |
| kJ | — | — | — | 3 | 9 | 13 | — | — | — | — | 77 | 111 | 120 | 124 | 262 | 419 | 451 | 590 | 572 | 540 | 587 |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 0 | 0 | 0 | 93 | 313 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 6 | 6 | 478 | 6 | 154 | 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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