Surf Forecasts:
Gilligans surf forecast from 1 Sep 2026:
- Best quality surf: Tuesday 8 Sep, 7PM (local time) - 6ft (1.9m), 16s period, SSW swell with cross-offshore winds.
- Most powerful swell: Tuesday 1 Sep, 10PM (local time) - 7ft (2.2m), 16s period, SW swell with 2,496 kJ wave energy.
- Next surfable swell (1★+): Tuesday 8 Sep, 7PM (local time) - 6ft (1.9m), 16s period with SSW swell.
Best Forecast Surf Conditions for Gilligans this week:
The surf forecast for Gilligans over the next 16 days: The first swell (rated 1 star or higher) is forecast to arrive on Tuesday (Sep 08) at 7PM. The primary swell is predicted to be 1.9m and 16s period with a secondary swell of 0.2m and 15s. Another secondary swell of 1.3m and 8s is also forecast. The wind is predicted to be cross-offshore as the swell arrives.
The most powerful waves expected at Gilligans in the next 16 days are 2.2m 16s and forecast to arrive on Tuesday (Sep 01) at 10PM. Winds are predicted to be cross-shore at the time the swell arrives.
| Wave Type | Time (WIB) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 7PM (Tue 8th Sep) | 6ft (1.9m) 16s |
| Best Surf | 7PM (Tue 8th Sep) | 6ft (1.9m) 16s |
| Most Powerful | 10PM (Tue 1st Sep) | 7ft (2.2m) 16s |
Table - best surf conditions forecast for Gilligans over the next 16 days.
The Lowdown
Alright, folks, Rusty here. Let’s break down what’s coming for the next couple of weeks.
First up, we got a solid run of groundswell on the cards, but it's gonna be a bit of a mixed bag with the wind. The early part of the week is looking a bit average with all that cross-shore mess, but if you can be patient, there’s some real gems hiding out later in the forecast.
The action starts on the 1st of September with a hefty 8ft SW groundswell rolling in, with a period of 16 seconds, which is a nice long-period groundswell. The combined energy is pumping at 2871, which is some serious grunt. But the wind is a cross-shore from the SSE at 12 mph, which is gonna put a bit of a chop on the face. It's not the best. The water temp is sitting at 85°, which is about normal for the time of year, so no need for a thick steamer.
Things calm down a bit through the 2nd and 3rd, with the swell dropping to around 5ft to 6ft, but that cross-shore wind sticks around. It’s manageable, but nothing to get the heart racing.
Now, the first real standout is gonna be on the 9th of September. The swell is a solid 7ft from the S with a 15-second period, giving a combined energy of 2028. The wind goes cross-offshore from the SE at 9 mph, and the report says "clean". For a reef break like Gilligans, that’s a beautiful combination. Perfect for an intermediate crew. Just be aware, it can get a bit busy here sometimes, so you might not be totally alone.
The next big window looks like the 12th of September. The morning of the 12th sees a 3ft SW groundswell with a 20-second period, which is a proper long-period pulse from the deep ocean. The combined energy is 1634, and the wind is dead calm – glassy. That’s a magic morning. Then the afternoon of the 12th gets even better: the swell jumps to 6ft from the SW, 19-second period, combined energy of 2948, and again, glassy conditions. That’s a long, clean, powerful wave. It’s a bit much for beginners at 6ft, but for the experienced crew, that’s a dream session.
The run continues into the 13th and 16th of September. The 13th has clean, cross-off winds and a solid 5ft SW swell, while the 16th of September is another absolute cracker. The morning of the 16th is glassy with a 6ft SSW swell and a 15-second period, combined energy of 1587, and the wind is completely calm. Zero wind. That’s a rare and perfect morning.
So, if you’re looking for the best, circle the 9th of September for that clean, quality groundswell, and the 12th of September for the glassy, long-period bombs. The 16th is also a beauty. The rest of the period is filled with surf, but it’s mostly cross-shore or onshore, so it’s not the top-tier stuff. You’ll have to be patient, but it’ll be worth it.
Rusty.
Short Range ForecastHeavy rain (total 36mm), heaviest during Wed night. Warm (max 28°C on Tue afternoon, min 26°C on Wed night). Wind will be generally light. | Days 5-7 Weather SummaryHeavy rain (total 21mm), heaviest during Sat morning. Warm (max 28°C on Fri afternoon, min 26°C on Fri night). Mainly fresh winds. | |||||||||||||||||||
Tue 1 | Wednesday 2 | Thursday 3 | Friday 4 | Saturday 5 | Sunday 6 | Monday 7 | ||||||||||||||
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 16 | SW 16 | SW 16 | SW 16 | SW 16 | SW 14 | SW 14 | SW 14 | SSW 13 | SSW 13 | SSW 16 | SSW 16 | SSW 17 | SSW 15 | SSW 16 | SSW 16 | SSW 15 | SSW 14 | SSW 13 | SSW 18 |
Wave Graph | ||||||||||||||||||||
2742 | 2357 | 1829 | 1571 | 1284 | 928 | 915 | 822 | 581 | 458 | 376 | 848 | 795 | 522 | 1016 | 817 | 610 | 384 | 482 | 431 | |
Wind (km/h) | ||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross | cross | cross | cross | cross | cross | cross | cross | cross | cross | cross | cross | cross | cross | cross | cross | cross | cross | cross | cross |
High Tide | 8:46PM0.99m | 8:47AM0.77m | 9:25PM0.98m | 9:24AM0.67m | 10:11PM0.94m | 10:08AM0.56m | 11:11PM0.90m | 11:14AM0.47m | 00:33AM0.86m | 1:15PM0.42m | 2:09AM0.87m | 3:15PM0.48m | 3:29AM0.92m | |||||||
Low Tide | 2:59AM0.13m | 2:46PM0.04m | 3:46AM0.17m | 3:18PM0.08m | 4:44AM0.23m | 3:56PM0.13m | 6:08AM0.29m | 4:47PM0.19m | 8:16AM0.28m | 6:13PM0.26m | 9:51AM0.22m | 8:17PM0.27m | ||||||||
— | — | 6:18 | — | — | 6:16 | — | — | 6:16 | — | — | 6:16 | — | — | 6:16 | — | — | 6:16 | — | — | |
6:21 | — | — | 6:21 | — | — | 6:21 | — | — | 6:20 | — | — | 6:20 | — | — | 6:20 | — | — | 6:20 | — | |
mm | 1 | 2 | 4 | 1 | 9 | 10 | 3 | 3 | 3 | 1 | 6 | 7 | 3 | — | 2 | — | — | 2 | 2 | 4 |
Temp °C | 28 | 27 | 28 | 28 | 28 | 28 | 28 | 27 | 28 | 28 | 26 | 27 | 27 | 27 | 28 | 28 | 27 | 28 | 28 | 27 |
Feels °C | 30 | 29 | 29 | 30 | 31 | 31 | 31 | 31 | 30 | 30 | 29 | 27 | 27 | 28 | 27 | 27 | 28 | 29 | 29 | 28 |
Swell 1 Height (m) Direction Period (s) | SW 16 | SW 16 | SW 16 | SW 16 | SW 16 | SW 14 | SW 14 | SW 14 | SSW 13 | SSW 13 | SSW 13 | SSW 16 | SSW 17 | SSW 15 | SSW 16 | SSW 16 | SSW 15 | SSW 14 | SSW 13 | SSW 13 |
2742 | 2357 | 1829 | 1571 | 1284 | 928 | 915 | 822 | 581 | 458 | 286 | 848 | 795 | 522 | 1016 | 817 | 610 | 384 | 482 | 219 | |
Swell 2 Height (m) Direction Period (s) | W 18 | W 18 | W 17 | W 16 | W 16 | SSE 8 | SSE 8 | WNW 8 | WNW 8 | SSW 17 | SSW 16 | WNW 9 | SSW 13 | SSW 18 | S 20 | S 18 | S 16 | S 15 | SSW 20 | SSW 18 |
25 | 54 | 50 | 47 | 20 | 147 | 123 | 6 | 6 | 94 | 376 | 8 | 202 | 413 | 186 | 304 | 325 | 205 | 256 | 431 | |
Swell 3 Height (m) Direction Period (s) | — | — | — | — | WNW 8 | WNW 8 | WNW 8 | W 15 | W 14 | WNW 8 | WNW 8 | W 11 | WNW 9 | WNW 10 | WNW 10 | NW 8 | WNW 10 | SSW 21 | SSE 17 | S 22 |
— | — | — | — | 6 | 6 | 6 | 5 | 4 | 6 | 6 | 2 | 8 | 9 | 10 | 2 | 9 | 90 | 59 | 236 | |
Wind waves Height (m) Direction Period (s) | SSE 6 | S 7 | SSE 7 | SSE 7 | SSE 8 | — | SSE 8 | SSE 8 | SSE 8 | SSE 7 | SSE 7 | SSE 7 | SSE 8 | SSE 8 | SSE 8 | SSE 8 | SSE 9 | SSE 8 | SSE 8 | SSE 8 |
104 | 109 | 108 | 111 | 143 | — | 186 | 120 | 99 | 97 | 104 | 193 | 226 | 264 | 264 | 322 | 366 | 341 | 341 | 341 | |
Nearest Offshore or Glassy | ||||||||||||||||||||
Distance (km) | 520 | 5 | 138 | 520 | 97 | 5 | 5 | 5 | 5 | 33 | 5 | 33 | 138 | 138 | 138 | 619 | 138 | 138 | 460 | 5 |
Best forecast wave conditions in Mentawi Islands | ||||||||||||||||||||
Best forecast wave conditions in Indonesia | ||||||||||||||||||||
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Information about the Gilligans Surf forecast
The above surf forecast table for Gilligans provides essential information for determining whether the surfing conditions will be good over the next 16 days. A general guide to surfing at Gilligans can be found by selecting the local surf guide option on the grey menu. Our Gilligans 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 (Gilligans) 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 Gilligans 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 Gilligans, camping, hotels and holiday cottages in Mentawi Islands, consider staying in Sungaipenuh which is 173 km (107 miles) away.











