
Surf Forecasts:
Hilisataro surf forecast from 4 Aug 2026:
- Best quality surf: Tuesday 4 Aug, 4PM (local time) - 6.5ft (2.0m), 10s period, W swell with cross-offshore winds.
- Most powerful swell: Friday 7 Aug, 4PM (local time) - 7ft (2.2m), 18s period, SSW swell with 3,002 kJ wave energy.
- Next surfable swell (1★+): Tuesday 4 Aug, 4PM (local time) - 6.5ft (2.0m), 10s period with W swell.
Best Forecast Surf Conditions for Hilisataro this week:
The surf forecast for Hilisataro over the next 16 days: The first swell (rated 1 star or higher) is forecast to arrive on Tuesday (Aug 04) at 4PM. The primary swell is predicted to be 2.0m and 10s period with a secondary swell of 1.2m and 16s. The wind is predicted to be cross-offshore as the swell arrives.
The most powerful waves expected at Hilisataro in the next 16 days are 2.2m 18s and forecast to arrive on Friday (Aug 07) at 4PM. Winds are predicted to be offshore at the time the swell arrives.
| Wave Type | Time (WIB) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 4PM (Tue 4th Aug) | 6.5ft (2.0m) 10s |
| Best Surf | 4PM (Tue 4th Aug) | 6.5ft (2.0m) 10s |
| Most Powerful | 4PM (Fri 7th Aug) | 7ft (2.2m) 18s |
Table - best surf conditions forecast for Hilisataro over the next 16 days.
The Lowdown
G'day, Rusty here. Looks like we've got a cracking run of swell on the way for Hilisataro, but it's not for the faint-hearted. This is a serious reef break, and it's gonna be pumping for a solid stretch, though the conditions do get a bit grubby towards the end of the first week. Let's get into it.
The action kicks off on Tuesday, the 4th of August. A solid 7 ft of west swell is already rolling in, with a moderate 10-second period. The combined energy is sitting at 2008 – that's a solid amount of power. A gentle offshore wind from the WNW is keeping it clean. The water temp is 86°, pretty normal for this time of year. This is excellent for experienced surfers, but with that size and power, it's not for beginners.
The swell dips a little into Wednesday the 5th, but the quality actually improves. We're looking at 5 ft swell from the SSW early, but here's the kicker – the period jumps to 15 seconds. That's proper groundswell, and it's going to wrap into this reef beautifully. The wind is light offshore from the NNW. The afternoon sees a touch more breeze, but still offshore. The energy is up there at 1501 and 1655. This is the kind of day where you want to be out there.
Thursday the 6th brings a bit more size, with 6 ft to 7 ft of SSW swell, and the period is now stretching to 17 seconds. The energy is getting serious, hitting 2427. The morning is a bit cross-off, but the afternoon sees a clean offshore wind from the NW. It's still only for the advanced crew.
Friday the 7th is the standout. The morning is clean with a 6 ft SSW swell and a 15-second period, but the afternoon is the real gem. The swell bumps up to 7 ft from the SSW, with an 18-second period, and the combined energy hits 3137. The wind is a moderate offshore from the NW. This is the pick of the entire forecast. If you're an expert, this is your session.
Saturday the 8th and Sunday the 9th are both excellent. Saturday holds 7 ft of SSW swell with a 16-second period, and the wind is light offshore, dropping to almost nothing. Sunday the 9th is a true gem. The morning is clear with a glassy 5 km/h easterly, and the afternoon is flat calm, completely glassy, with 6 ft of SSW groundswell. This is as good as it gets for clean conditions.
Monday the 10th keeps the glassy conditions going, with 6 ft of SSW swell. The wind is light and glassy from the ESE and SE. The energy is still strong at 2026. This is a beautiful run of clean surf.
Now, things get a bit dicey from Tuesday the 11th. The swell is still big – 8 ft with an 18-second period in the afternoon and energy of 3351 – but the wind swings cross-onshore from the S and SSE. The quality drops. By Wednesday the 12th and Thursday the 13th, the wind is onshore and the swell is all over the shop. The surf is still there, but it's going to be choppy and messy. This looks more like a setup for kite surfing than a clean paddle session.
There's a bit of a lull from Friday the 14th through to Monday the 18th. The swell drops to 3 ft to 5 ft, and the wind is mostly cross-on or onshore. The energy is low, and it's all marginal. A few glassy windows appear on the 15th and 16th afternoons, but the swell is inconsistent and weak.
But hold on – the forecast kicks back into life on Wednesday the 19th of August. The morning sees a 8 ft SSW swell with an 18-second period, and the energy is massive at 3696. The wind is glassy. The afternoon pushes it to 8 ft of SSW swell, with a 17-second period and energy of 3592. This is a serious, powerful, glassy groundswell. It's a long-range call, so treat it with a bit of caution, but if it comes together, it will be the biggest and cleanest day of the whole outlook. It's only for experts.
So, to wrap it up: the best of the best is Friday the 7th of August, with that 7 ft, 18-second SSW groundswell and clean offshore wind. The second standout is the glassy Sunday the 9th. And keep an eye on the 19th – that's a promise of a massive, clean swell, but it's still a week and a half away.
This is Rusty, signing off.
Short Range ForecastHeavy rain (total 71mm), heaviest during Tue morning. Warm (max 28°C on Wed morning, min 24°C on Tue morning). Wind will be generally light. | Days 4-6 Weather SummaryHeavy rain (total 23mm), heaviest during Fri night. Warm (max 28°C on Sat morning, min 26°C on Fri morning). Wind will be generally light. | ||||||||||||||||||||
Tuesday 4 | Wednesday 5 | Thursday 6 | Friday 7 | Saturday 8 | Sunday 9 | Monday 10 | |||||||||||||||
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) | W 10 | W 10 | SW 16 | SSW 15 | SW 15 | SW 19 | SSW 17 | SSW 16 | SSW 16 | SSW 15 | SSW 18 | SSW 16 | SSW 16 | SSW 16 | SSW 15 | SSW 15 | SSW 16 | SSW 15 | SSW 14 | SSW 14 | SSW 19 |
Wave Graph | |||||||||||||||||||||
926 | 786 | 1208 | 1014 | 930 | 1268 | 2113 | 2002 | 1880 | 1428 | 3002 | 2818 | 2447 | 2109 | 1781 | 1537 | 1613 | 1310 | 1321 | 1111 | 1564 | |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | off | cross-off | off | off | off | off | cross-off | off | off | off | off | cross-off | off | off | glassy | glassy | glassy | glassy | glassy | glassy | cross-on |
High Tide | 9:55PM0.72m | 9:43AM0.64m | 10:42PM0.71m | 10:24AM0.55m | 11:43PM0.69m | 11:23AM0.45m | 1:04AM0.69m | 1:05PM0.38m | 2:34AM0.72m | 3:06PM0.38m | 3:51AM0.79m | 4:27PM0.43m | |||||||||
Low Tide | 3:22PM0.06m | 3:47AM0.21m | 3:54PM0.08m | 4:44AM0.25m | 4:32PM0.11m | 6:07AM0.29m | 5:23PM0.14m | 8:24AM0.28m | 6:40PM0.17m | 10:13AM0.21m | 8:23PM0.17m | 11:11AM0.14m | 9:50PM0.14m | ||||||||
6:30 | — | — | 6:30 | — | — | 6:30 | — | — | 6:30 | — | — | 6:30 | — | — | 6:28 | — | — | 6:28 | — | — | |
— | 6:37 | — | — | 6:37 | — | — | 6:37 | — | — | 6:37 | — | — | 6:37 | — | — | 6:37 | — | — | 6:37 | — | |
mm | 25 | 3 | 4 | 2 | 8 | 16 | 4 | 5 | 4 | — | 1 | 12 | 4 | 2 | 1 | — | 1 | 2 | 4 | 1 | — |
Temp °C | 24 | 26 | 26 | 28 | 27 | 26 | 27 | 27 | 26 | 27 | 27 | 26 | 28 | 28 | 27 | 28 | 28 | 27 | 27 | 28 | 27 |
Feels °C | 26 | 28 | 28 | 31 | 29 | 27 | 30 | 29 | 29 | 29 | 28 | 28 | 31 | 32 | 31 | 32 | 33 | 32 | 31 | 33 | 31 |
Swell 1 Height (m) Direction Period (s) | W 10 | W 10 | W 10 | SSW 15 | SW 15 | W 9 | SSW 17 | SSW 16 | SSW 16 | SSW 15 | SSW 18 | SSW 16 | SSW 16 | SSW 16 | SSW 15 | SSW 15 | SSW 16 | SSW 15 | SSW 14 | SSW 14 | SSW 13 |
926 | 786 | 563 | 1014 | 930 | 404 | 2113 | 2002 | 1880 | 1428 | 3002 | 2818 | 2447 | 2109 | 1781 | 1537 | 1613 | 1310 | 1321 | 1111 | 849 | |
Swell 2 Height (m) Direction Period (s) | SSW 13 | SW 16 | SW 16 | W 10 | W 9 | SW 19 | W 9 | W 9 | W 9 | SSW 19 | WNW 9 | WNW 9 | WNW 9 | WNW 9 | WNW 9 | WNW 9 | WNW 9 | WNW 9 | WNW 9 | SSW 22 | SSW 19 |
472 | 739 | 1208 | 369 | 325 | 1268 | 304 | 257 | 162 | 866 | 129 | 103 | 108 | 121 | 124 | 119 | 119 | 116 | 90 | 831 | 1564 | |
Swell 3 Height (m) Direction Period (s) | SW 16 | SSW 13 | S 16 | SW 22 | SW 20 | SSW 14 | S 11 | — | SSW 20 | WNW 9 | W 17 | W 16 | W 16 | W 15 | W 14 | — | W 13 | SSW 26 | SSW 24 | WNW 9 | SW 21 |
610 | 265 | 5 | 118 | 400 | 487 | 10 | — | 223 | 132 | 6 | 5 | 5 | 4 | 4 | — | 3 | 65 | 368 | 84 | 449 | |
Wind waves Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 0 | 0 | 0 | 0 | 0 | 0 | 18 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 17 |
Best forecast wave conditions in Nias | |||||||||||||||||||||
Best forecast wave conditions in Indonesia | |||||||||||||||||||||
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Information about the Hilisataro Surf forecast
The above surf forecast table for Hilisataro provides essential information for determining whether the surfing conditions will be good over the next 16 days. A general guide to surfing at Hilisataro can be found by selecting the local surf guide option on the grey menu. Our Hilisataro 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 (Hilisataro) 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 Hilisataro 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 Nias? If you are looking for accommodation near Hilisataro, camping, hotels and holiday cottages in Nias, consider staying in Afia which is 92 km (57 miles) away.











