Surf Forecasts:
Hideaways (Mentawi Islands) surf forecast from 12 Sep 2026:
- Best quality surf: Saturday 12 Sep, 4PM (local time) - 7ft (2.1m), 19s period, SW swell with cross-offshore winds.
- Most powerful swell: Saturday 12 Sep, 10PM (local time) - 8ft (2.4m), 19s period, SW swell with 3,975 kJ wave energy.
- Next surfable swell (1★+): Saturday 12 Sep, 4PM (local time) - 7ft (2.1m), 19s 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 Saturday (Sep 12) at 4PM. The primary swell is predicted to be 2.1m and 19s period with a secondary swell of 1.2m and 14s. 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 2.4m 19s and forecast to arrive on Saturday (Sep 12) at 10PM. Winds are predicted to be cross-offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.5m 6s period and expected on Sunday (Sep 13) at 1PM.
| Wave Type | Time (WIB) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 4PM (Sat 12th Sep) | 7ft (2.1m) 19s |
| Best Surf | 4PM (Sat 12th Sep) | 7ft (2.1m) 19s |
| Most Powerful | 10PM (Sat 12th Sep) | 8ft (2.4m) 19s |
Table - best surf conditions forecast for Hideaways (Mentawi Islands) over the next 16 days.
The Lowdown
G'day, I'm Rusty. Let's have a look at what's coming up.
We've got a solid run of surf on the cards here, starting from this Saturday, the 12th of September, and rolling through for a good couple of weeks. The standout spot for this whole period is without a doubt Hideaways (Mentawi Islands). This is a consistent reef break that's fairly exposed to the SW swell, and it's about to get absolutely loaded.
The swell kicks off Saturday morning with a solid 6ft SW groundswell, with a very long period of 19 seconds. That's proper, deep-ocean energy, and combined with a light offshore ESE breeze, it's going to be clean and lined up. The combined swell energy is strong at 2831. By Saturday afternoon, it bumps up to 7ft from the SW, still with that long 19-second period, and the wind light and cross-off. The water temp is bang on average for this time of year at 85°, so no surprises there.
Sunday the 13th is even more size, with 8ft SW swell in the morning, period still a solid 17 seconds, and a clean offshore wind. This is big, powerful surf. Over 8ft on the Friday the 25th, so that's expert territory. For the whole first week, the swell hangs between 5ft and 8ft, with those lovely long periods from the SW and SSW. The winds are mostly offshore or light cross-off, keeping it clean. The combined energy stays in the strong range, often between 1200 and 3000 plus.
The real standout, the one that gets the heart racing, is Friday the 25th of September. We've got 8ft of SW groundswell with a period of 18 seconds in the afternoon, clean cross-off wind, and the combined energy is a whopping 4194. That is a serious pulse of power. The morning of the 25th isn't far behind, with 7ft, a 19-second period, and light wind. That Friday is the pick of the whole forecast.
The second week settles down a bit, but there's still plenty to work with. The 22nd is a bit of a lull with smaller waves, but by the 23rd and 24th the swell is back up. Crowds at Hideaways are listed as "often", so for a spot this good, expect plenty of company. It's a consistent break, so it handles the crowds.
Overall, this is a firing forecast. Hideaways is the clear winner from start to finish. Get on it.
Rusty
Short Range ForecastHeavy rain (total 39mm), heaviest during Sat night. Warm (max 28°C on Sat morning, min 26°C on Sun morning). Wind will be generally light. | Days 4-6 Weather SummaryHeavy rain (total 31mm), heaviest during Wed morning. Warm (max 28°C on Tue morning, min 27°C on Tue morning). Wind will be generally light. | ||||||||||||||||||||
Saturday 12 | Sunday 13 | Monday 14 | Tuesday 15 | Wednesday 16 | Thursday 17 | Friday 18 | |||||||||||||||
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) | SW 19 | SW 19 | SW 18 | SW 17 | SW 16 | SW 15 | SW 16 | SW 16 | SSW 15 | SSW 15 | SW 15 | SSW 14 | SSW 14 | SSW 14 | SSW 14 | SSW 15 | SSW 16 | SSW 16 | SSW 15 | SSW 14 | SW 14 |
Wave Graph  | |||||||||||||||||||||
 kJ | 2140 | 3072 | 3559 | 3010 | 2742 | 1788 | 1822 | 2119 | 1907 | 1529 | 1358 | 1126 | 1072 | 1191 | 1175 | 1337 | 1379 | 1126 | 818 | 701 | 581 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | off | cross-off | off | off | cross-off | off | off | cross-off | off | off | cross-off | off | off | cross-off | off | off | cross-off | off | off | cross-off | off |
High Tide | 7:14PM1.16m | 7:25AM1.10m | 7:48PM1.19m | 7:59AM1.02m | 8:21PM1.18m | 8:30AM0.92m | 8:53PM1.13m | 8:58AM0.81m | 9:26PM1.05m | 9:23AM0.70m | 10:01PM0.96m | 9:43AM0.61m | 10:45PM0.87m | ||||||||
Low Tide | 12:53PM0.01m | 1:12AM0.05m | 1:20PM0.01m | 1:49AM0.06m | 1:46PM0.02m | 2:24AM0.09m | 2:13PM0.05m | 2:59AM0.15m | 2:40PM0.09m | 3:35AM0.21m | 3:09PM0.15m | 4:16AM0.29m | 3:41PM0.22m | ||||||||
 | |  | |  | | | | | |  | | | | | | | | | | | |
 | 6:16 | — | — | 6:16 | — | — | 6:15 | — | — | 6:15 | — | — | 6:15 | — | — | 6:13 | — | — | 6:13 | — | — |
 | — | 6:22 | — | — | 6:21 | — | — | 6:21 | — | — | 6:21 | — | — | 6:20 | — | — | 6:20 | — | — | 6:20 | — |
mm | 1 | 1 | 16 | 11 | — | 5 | 1 | 2 | 2 | 1 | — | 9 | 10 | 3 | 1 | 3 | 2 | 2 | 6 | 4 | 14 |
Temp °C | 28 | 28 | 27 | 27 | 28 | 27 | 28 | 28 | 27 | 28 | 28 | 27 | 27 | 27 | 27 | 27 | 27 | 27 | 27 | 27 | 26 |
Feels °C | 31 | 31 | 29 | 30 | 31 | 29 | 30 | 31 | 30 | 31 | 30 | 29 | 28 | 28 | 28 | 28 | 27 | 28 | 29 | 29 | 28 |
Swell 1 Height (m) Direction Period (s) | SW 19 | SW 19 | SW 18 | SW 17 | SW 16 | SW 15 | SW 16 | SW 16 | SSW 15 | SSW 15 | SW 15 | SSW 14 | SSW 14 | SSW 14 | SSW 14 | SSW 15 | SSW 16 | SSW 16 | SSW 15 | SSW 14 | SW 14 |
| kJ | 2140 | 3072 | 3559 | 3010 | 2742 | 1788 | 1822 | 2119 | 1907 | 1529 | 1358 | 1126 | 1072 | 1191 | 1175 | 1337 | 1379 | 1126 | 818 | 701 | 581 |
Swell 2 Height (m) Direction Period (s) | SSW 14 | SW 14 | — | W 19 | — | WSW 18 | W 17 | SSE 7 | — | W 15 | W 10 | SSW 21 | SW 19 | SW 19 | SW 18 | W 11 | W 11 | WNW 11 | WNW 10 | SSE 7 | SW 18 |
| kJ | 691 | 606 | — | 30 | — | 30 | 23 | 104 | — | 5 | 2 | 45 | 133 | 133 | 375 | 21 | 62 | 123 | 106 | 71 | 327 |
Swell 3 Height (m) Direction Period (s) | — | W 22 | — | — | — | — | — | — | — | — | W 15 | W 9 | W 8 | W 9 | W 8 | W 8 | — | SW 21 | SW 20 | W 10 | W 9 |
| kJ | — | 36 | — | — | — | — | — | — | — | — | 4 | 2 | 1 | 1 | 5 | 5 | — | 18 | 61 | 70 | 41 |
Wind waves Height (m) Direction Period (s) | SSE 9 | SSE 9 | SSE 9 | SSE 6 | SSE 6 | SSE 7 | SSE 7 | — | SSE 7 | SSE 7 | SSE 7 | SSE 5 | SSE 6 | SSE 6 | SSE 6 | SSE 5 | SSE 6 | SSE 7 | SSE 7 | — | SSE 7 |
| kJ | 149 | 119 | 113 | 131 | 140 | 140 | 127 | — | 99 | 76 | 76 | 47 | 153 | 119 | 108 | 93 | 103 | 102 | 84 | — | 97 |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 315 | 0 | 0 | 383 | 0 | 0 | 315 | 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.
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