Surf Forecasts:
E-Bay surf forecast from 16 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), 18s period, S swell with 1,201 kJ wave energy.
- Next surfable swell (1★+): Friday 17 Jul, 7PM (local time) - 3ft (0.9m), 15s 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 Friday (Jul 17) at 7PM. The primary swell is predicted to be 0.9m 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 18s and forecast to arrive on Monday (Jul 20) at 7AM. Winds are predicted to be cross-offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.7m 10s period and expected on Friday (Jul 24) at 7AM.
| Wave Type | Time (WIB) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 7PM (Fri 17th Jul) | 3ft (0.9m) 15s |
| 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
Alright, Rusty here, let’s break down what’s coming in the next couple weeks.
Right now, there’s nothing happening. We’ve got a dry spell until Saturday the 18th, so just a few days of flat water.
Saturday the 18th finally brings some swell. Waves around 3 ft with a long 14-second period from the SSW, shifting west later. Both morning and afternoon go glassy – dead calm wind. Combined energy is moderate at 314, and with an early offshore from NNW, E-Bay (a reef setup, for advanced, fairly consistent) will be clean and lined up. This is the standout for the weekend. Expect some company, but the quality makes up for it.
Sunday the 19th drops a bit, around 3 ft, still with good 13-second period. Winds are cross-offshore, so faces stay clean. Energy holds moderate. A solid session, not as prime as Saturday.
Monday the 20th is a spike. Swell builds to 5 ft from the south with a 16-17 second period – real groundswell. Combined energy hits 1217 – strong. This is expert-only size on the reef. Wind goes offshore and light in the afternoon, glassing it up. Another standout day if you’ve got the chops.
Then conditions go downhill. Tuesday the 21st gets side-shore and cross-onshore breezes, swell holds around 4 ft but marginal. Wednesday the 22nd through Sunday the 26th is mostly poor, onshore wind picking up to 15-25 mph, short period, weak energy. A couple glassy moments on the 26th but waves are just 2-2 ft – not worth a paddle.
Monday the 27th goes glassy but flat – 2 ft and energy at 95.
Second week looks more promising late. Wednesday the 29th afternoon goes glassy with 2 ft and 14-second period, energy 218 – decent for what’s been a quiet run.
Thursday the 30th afternoon turns interesting. Waves 3 ft but period jumps to 21 seconds – very long groundswell. Combined energy 798, glassy. The reef will turn those long lines into something special.
Friday the 31st is the big one for the second week. Swell hits 5 ft from the SSW, 19-second period, energy 1706 – very strong. Glassy winds all day. This is expert territory, big clean sets rolling in. Crowds possible, but the quality is undeniable.
Saturday August 1st keeps that 5 ft SSW swell, still glassy. A great way to wrap it up.
Your top calls: Saturday the 18th and Monday the 20th for the first stretch, and lock in Friday the 31st and Saturday August 1st for the long-range gem.
This is Rusty, out.
Short Range ForecastHeavy rain (total 37mm), heaviest during Thu night. Warm (max 29°C on Fri morning, min 26°C on Sat night). Wind will be generally light. | Days 4-6 Weather SummaryHeavy rain (total 32mm), heaviest during Mon afternoon. Warm (max 28°C on Wed morning, min 26°C on Sun night). Wind will be generally light. | ||||||||||||||||||||
Friday 17 | Saturday 18 | Sunday 19 | Monday 20 | Tuesday 21 | Wednesday 22 | Thursday 23 | |||||||||||||||
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 16 | SSW 15 | SSW 15 | 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 | S 12 | S 10 | SSW 13 |
Wave Graph  | |||||||||||||||||||||
 kJ | 357 | 309 | 246 | 301 | 293 | 243 | 229 | 173 | 1039 | 1174 | 1004 | 954 | 691 | 573 | 356 | 272 | 209 | 146 | 67 | 133 | 35 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | on | on | glassy | glassy | glassy | cross-off | cross-off | cross-off | glassy | cross-off | off | cross | cross-on | cross | cross-on | cross-on | on | cross-on | on | on | on |
High Tide | 8:13AM1.29m | 8:48PM0.94m | 8:55AM1.20m | 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 | |||||||
Low Tide | 2:36PM0.00m | 2:22AM0.11m | 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 | ||||||||
 |  |  | | | | | |  | | | | |  | | | | |  | |  | |
 | 6:28 | — | — | 6:28 | — | — | 6:28 | — | — | 6:28 | — | — | 6:28 | — | — | 6:28 | — | — | 6:28 | — | — |
 | — | 6:29 | — | — | 6:29 | — | — | 6:30 | — | — | 6:30 | — | — | 6:30 | — | — | 6:30 | — | — | 6:30 | — |
mm | 1 | — | 4 | 3 | 5 | 12 | 2 | 3 | 5 | 3 | 7 | 4 | 4 | 1 | 2 | 2 | 4 | 3 | — | — | — |
Temp °C | 29 | 29 | 28 | 28 | 28 | 27 | 28 | 28 | 27 | 27 | 27 | 27 | 27 | 27 | 27 | 28 | 28 | 28 | 29 | 28 | 28 |
Feels °C | 33 | 33 | 33 | 33 | 32 | 30 | 31 | 30 | 32 | 31 | 31 | 30 | 29 | 29 | 29 | 30 | 30 | 27 | 29 | 28 | 28 |
Swell 1 Height (m) Direction Period (s) | SSW 16 | SSW 15 | SSW 15 | 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 | S 12 | S 10 | SSW 13 |
| kJ | 357 | 309 | 246 | 301 | 293 | 243 | 229 | 173 | 1039 | 1174 | 1004 | 954 | 691 | 573 | 356 | 272 | 209 | 146 | 67 | 133 | 35 |
Swell 2 Height (m) Direction Period (s) | SSE 8 | SSE 7 | SSE 7 | SSE 7 | SSE 7 | SSE 7 | SSE 7 | SSE 7 | SSE 7 | S 7 | S 8 | S 7 | SSE 6 | S 20 | S 18 | S 17 | S 16 | SW 18 | SSW 15 | SSW 16 | SSW 16 |
| kJ | 45 | 41 | 51 | 38 | 38 | 42 | 29 | 29 | 26 | 38 | 29 | 37 | 44 | 7 | 25 | 53 | 46 | 49 | 42 | 24 | 25 |
Swell 3 Height (m) Direction Period (s) | S 8 | WNW 8 | WNW 8 | WNW 8 | SSE 8 | WNW 8 | N 4 | S 18 | S 7 | WNW 7 | — | W 10 | — | S 20 | WNW 10 | SW 19 | SW 19 | S 8 | SW 18 | S 15 | S 21 |
| kJ | 11 | 13 | 12 | 13 | 23 | 11 | 1 | 155 | 24 | 5 | — | 2 | — | 30 | 10 | 15 | 15 | 1 | 12 | 4 | 8 |
Wind waves Height (m) Direction Period (s) | — | — | — | — | — | — | NNW 3 | — | WNW 3 | WSW 4 | WNW 8 | — | SSE 5 | SSE 7 | SSE 7 | SSE 7 | SSE 7 | SSE 7 | SSE 6 | SSE 8 | SSE 10 |
| kJ | — | — | — | — | — | — | 4 | — | 4 | 13 | 13 | — | 37 | 64 | 86 | 75 | 88 | 154 | 170 | 270 | 428 |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 154 | 154 | 378 | 6 |
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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