Surf Forecasts:
Hideaways (Mentawi Islands) surf forecast from 12 Aug 2026:
- Best quality surf: Tuesday 18 Aug, 10PM (local time) - 8ft (2.5m), 19s period, SSW swell with offshore winds.
- Most powerful swell: Tuesday 18 Aug, 10PM (local time) - 8ft (2.5m), 19s period, SSW swell with 5,329 kJ wave energy.
- Next surfable swell (1★+): Thursday 13 Aug, 7PM (local time) - 2ft (0.6m), 15s period with SW swell.
Best Forecast Surf Conditions for Hideaways (Mentawi Islands) this week:
The surf forecast for Hideaways (Mentawi Islands) over the next 16 days: The first swell (rated 1 star or higher) is forecast to arrive on Thursday (Aug 13) at 7PM. The primary swell is predicted to be 0.6m and 15s period. The wind is predicted to be cross-offshore as the swell arrives.
The most powerful waves expected at Hideaways (Mentawi Islands) in the next 16 days are 2.5m 19s and forecast to arrive on Tuesday (Aug 18) at 10PM. Winds are predicted to be offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 2.4m 17s period and expected on Thursday (Aug 13) at 10PM.
| Wave Type | Time (WIB) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 7PM (Thu 13th Aug) | 2ft (0.6m) 15s |
| Best Surf | 10PM (Tue 18th Aug) | 8ft (2.5m) 19s |
| Most Powerful | 10PM (Tue 18th Aug) | 8ft (2.5m) 19s |
Table - best surf conditions forecast for Hideaways (Mentawi Islands) over the next 16 days.
The Lowdown
Alright, Rusty here. Let's break down what's on the menu for the Mentawi Islands over the next couple of weeks.
First off, we’ve got a bit of a flat spell to kick things off. Wednesday the 12th through to Friday morning the 14th is pretty much a write-off – tiny, messy, and not worth paddling out for. The water temp is sitting right on average for this time of year at about 85°, so at least the wait is comfortable.
Things start to tick over a little on Friday afternoon, but it’s still small and weak. Saturday the 15th sees the first hints of life with a bit more energy pushing in – a modest 3 ft swell from the SSW on Saturday morning, with some glassy conditions making it look clean. But honestly, it’s not until Sunday the 16th that we start to see a proper pulse, with a clean 3 ft swell and offshore winds.
The real story, though, is what’s brewing for the following week. Monday the 17th afternoon is when the juice really starts flowing. We’ve got a solid 4 ft SSW groundswell rolling in, with a 14-second period and clean offshore winds. The energy is climbing into the moderate range and the setup is looking very good.
Then, from Tuesday the 18th, it’s game on. Hideaways (Mentawi Islands) is going to fire. The swell builds to 7 ft on Tuesday morning from the SSW, with a long 16-second period and clean offshore east-southeast wind. This is top-shelf, proper groundswell – the kind that makes these reefs sing. The energy is strong. This is excellent surf, but at 7 ft, it’s moving into experienced surfer territory.
The standout window is Wednesday the 19th morning through to Thursday the 20th morning. Wednesday morning sees the peak of the swell at 8 ft from the SSW, 18-second period, and offshore wind. The energy is massive. This is big, powerful, and perfect for the crew who know what they’re doing. It’s a proper groundswell which will be holding up well on the reef here. The afternoon does get a bit cross-off and will be a touch bumpier, but still solid.
For the rest of the week and into the next, the swell hangs in there with a strong pulse. Friday the 21st through to Monday the 24th sees consistent 6 ft to 7 ft SSW swell, with excellent conditions and clean winds, often glassy. Even the mornings are looking clean. The energy stays in the strong range. The period backs off a touch to 14-15 seconds, but it’s still a quality groundswell.
To be honest, the best bet is to lock in the 18th through the 24th. The real standout is Wednesday the 19th morning – that 8 ft SSW groundswell with offshore wind and a 18-second period, with massive energy, is as good as it gets. It’s a big swell, so only for the experienced, but it’s a dream setup. If you can’t make that, the whole stretch from the 18th to the 24th is firing with excellent, consistent surf. The crowds at Hideaways are often there, so be prepared to share, but that's the price for such a quality wave.
Rusty.
Short Range ForecastHeavy rain (total 56mm), heaviest during Fri afternoon. Warm (max 28°C on Wed night, min 25°C on Fri night). Wind will be generally light. | Days 4-6 Weather SummaryModerate rain (total 18mm), heaviest on Sun morning. Warm (max 28°C on Mon morning, min 26°C on Sat night). Wind will be generally light. | ||||||||||||||||||||
Thursday 13 | Friday 14 | Saturday 15 | Sunday 16 | Monday 17 | Tuesday 18 | Wednesday 19 | |||||||||||||||
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 | SW 15 | SSW 23 | SSW 22 | SSW 20 | SSW 20 | SSW 17 | SW 16 | SW 16 | SW 15 | SW 15 | SW 26 | SSW 14 | SSW 14 | SSW 18 | SSW 16 | SSW 19 | SSW 19 | SSW 18 | SSW 18 | SSW 17 |
Wave Graph | |||||||||||||||||||||
0 | 54 | 53 | 91 | 239 | 298 | 516 | 302 | 295 | 269 | 212 | 26 | 651 | 439 | 1038 | 2787 | 2067 | 4622 | 4423 | 4924 | 3985 | |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | off | cross-off | off | off | cross-off | glassy | glassy | off | off | off | cross-off | off | off | off | off | off | off | cross-off | off | cross-off | off |
High Tide | 6:30AM1.29m | 7:01PM0.95m | 7:12AM1.28m | 7:41PM1.03m | 7:51AM1.22m | 8:20PM1.08m | 8:28AM1.13m | 8:58PM1.10m | 9:02AM1.01m | 9:36PM1.08m | 9:35AM0.89m | 10:15PM1.03m | 10:06AM0.76m | 10:58PM0.96m | |||||||
Low Tide | 12:58PM0.01m | 00:39AM0.06m | 1:30PM-0.01m | 1:25AM0.06m | 2:01PM-0.00m | 2:08AM0.08m | 2:30PM0.02m | 2:49AM0.13m | 2:58PM0.05m | 3:29AM0.20m | 3:26PM0.10m | 4:10AM0.27m | 3:55PM0.15m | ||||||||
6:26 | — | — | 6:26 | — | — | 6:24 | — | — | 6:24 | — | — | 6:24 | — | — | 6:24 | — | — | 6:24 | — | — | |
— | 6:29 | — | — | 6:29 | — | — | 6:28 | — | — | 6:28 | — | — | 6:28 | — | — | 6:28 | — | — | 6:28 | — | |
mm | 2 | 3 | 9 | 5 | 8 | 19 | 6 | — | 6 | 6 | 2 | 4 | — | — | — | — | — | 2 | 3 | — | — |
Temp °C | 28 | 28 | 27 | 27 | 27 | 26 | 27 | 27 | 27 | 27 | 27 | 27 | 28 | 28 | 27 | 28 | 28 | 27 | 28 | 28 | 28 |
Feels °C | 30 | 30 | 29 | 31 | 31 | 29 | 31 | 30 | 30 | 30 | 30 | 30 | 30 | 30 | 29 | 32 | 30 | 28 | 30 | 30 | 29 |
Swell 1 Height (m) Direction Period (s) | S 14 | S 18 | S 17 | S 16 | S 15 | S 14 | S 14 | S 13 | S 15 | S 15 | S 15 | SSW 14 | SSW 14 | SSW 14 | SSW 18 | SSW 16 | SSW 16 | SSW 19 | SSW 18 | SSW 18 | SSW 17 |
1303 | 1925 | 2316 | 2819 | 2465 | 1626 | 1036 | 757 | 1190 | 865 | 819 | 834 | 651 | 439 | 1038 | 2787 | 1613 | 4622 | 4423 | 4924 | 3985 | |
Swell 2 Height (m) Direction Period (s) | S 18 | S 12 | WNW 11 | SSW 22 | SSW 20 | SW 16 | SSW 17 | S 16 | SW 16 | SW 15 | SW 15 | WNW 8 | SSW 19 | SSW 19 | SSW 13 | WNW 8 | SSW 19 | WNW 8 | W 10 | WNW 10 | WNW 11 |
784 | 678 | 12 | 91 | 239 | 203 | 516 | 438 | 295 | 269 | 212 | 14 | 148 | 424 | 336 | 14 | 2067 | 13 | 8 | 11 | 22 | |
Swell 3 Height (m) Direction Period (s) | WNW 10 | SW 15 | SSW 23 | WNW 11 | WNW 11 | SSW 20 | S 18 | SW 16 | WNW 10 | WNW 9 | WNW 9 | SW 26 | SW 24 | SW 23 | SW 22 | S 10 | WNW 8 | WNW 10 | — | — | — |
11 | 54 | 53 | 12 | 12 | 298 | 231 | 302 | 10 | 17 | 16 | 26 | 141 | 140 | 671 | 30 | 13 | 10 | — | — | — | |
Wind waves Height (m) Direction Period (s) | — | — | S 11 | SSE 11 | — | — | — | — | — | — | — | — | SE 3 | SE 4 | SSE 4 | SSE 5 | SSE 5 | SSE 8 | SW 10 | SSW 11 | SSE 5 |
— | — | 505 | 392 | — | — | — | — | — | — | — | — | 3 | 6 | 22 | 20 | 17 | 57 | 49 | 64 | 42 | |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 6 | 108 | 6 | 6 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 6 | 0 | 0 | 0 | 0 | 0 | 151 | 0 | 108 | 0 |
Best forecast wave conditions in Mentawi Islands | |||||||||||||||||||||
Best forecast wave conditions in Indonesia | |||||||||||||||||||||
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Information about the Hideaways (Mentawi Islands) Surf forecast
The above surf forecast table for Hideaways (Mentawi Islands) provides essential information for determining whether the surfing conditions will be good over the next 16 days. A general guide to surfing at Hideaways (Mentawi Islands) can be found by selecting the local surf guide option on the grey menu. Our Hideaways (Mentawi Islands) 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 (Hideaways (Mentawi Islands)) 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 Hideaways (Mentawi Islands) 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.











