Surf Forecasts:
Hilisataro surf forecast from 28 Aug 2026:
- Best quality surf: Monday 31 Aug, 4AM (local time) - 4.5ft (1.3m), 18s period, SW swell with glassy winds.
- Most powerful swell: Tuesday 1 Sep, 10AM (local time) - 7ft (2.2m), 17s period, SW swell with 2,726 kJ wave energy.
- Next surfable swell (1★+): Saturday 29 Aug, 1AM (local time) - 5ft (1.5m), 15s period with SW 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 Saturday (Aug 29) at 1AM. The primary swell is predicted to be 1.5m and 15s period with a secondary swell of 0.4m and 7s. The wind is predicted to be glassy as the swell arrives.
The most powerful waves expected at Hilisataro in the next 16 days are 2.2m 17s and forecast to arrive on Tuesday (Sep 01) at 10AM. Winds are predicted to be glassy at the time the swell arrives.
| Wave Type | Time (WIB) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 1AM (Sat 29th Aug) | 5ft (1.5m) 15s |
| Best Surf | 4AM (Mon 31st Aug) | 4.5ft (1.3m) 18s |
| Most Powerful | 10AM (Tue 1st Sep) | 7ft (2.2m) 17s |
Table - best surf conditions forecast for Hilisataro over the next 16 days.
The Lowdown
Alright, this is Rusty. Let’s break down what’s cooking at Hilisataro. This is a reef break that needs a proper SW swell, and there’s a lot of that coming, but the first few days are a bit of a mess, so don’t rush out.
Friday the 28th has a 6.2ft SW swell at a long 16 seconds, but the wind is on or cross-on, leaving things choppy. The combined energy is strong (1867) but the surf is marginal. Saturday is smaller and still ugly. Sunday the 30th morning turns it around with glassy conditions, a 2.6ft SW groundswell at 21 seconds, and energy at 1041. It’s small but clean and inviting.
Monday the 31st brings the size back up to 5.2ft and 5.9ft in the afternoon, but cross-on wind and thunderstorms spoil it.
The first real standout is Tuesday the 1st of September. Morning shows a 7.2ft SW swell from a 17-second period, glassy, and energy roaring at 2884 – that’s strong. This is only for experienced surfers. Wednesday the 2nd morning is also excellent with a 5.9ft SW swell at 16 seconds, dead calm, and energy at 1651. Water temp is 85.8°, pretty average for this time of year.
The swell drops late in the first week, with smaller but clean conditions Thursday and Friday. Crowds are possible here, so get out early.
The second week has a major highlight. Saturday the 12th of September morning delivers a 7.5ft SW swell with a 17-second period, glassy wind, and combined energy at 3171 – very strong. That’s an expert-only session and it looks incredible. The 11th is also solid with similar size.
So, the best bets are Tuesday the 1st of September and Saturday the 12th of September mornings. Big, clean, and powerful. The rest is a mix of small glassy windows and larger but wind-affected days.
Short Range ForecastSome drizzle, heaviest during Fri night. Warm (max 28°C on Fri morning, min 26°C on Fri night). Wind will be generally light. | Days 4-6 Weather SummaryLight rain (total 4mm), mostly falling on Mon morning. Warm (max 28°C on Mon morning, min 26°C on Mon night). Wind will be generally light. | ||||||||||||||||||||
Friday 28 | Saturday 29 | Sunday 30 | Monday 31 | Tuesday 1 | Wednesday 2 | Thursday 3 | |||||||||||||||
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 16 | SW 16 | SW 15 | SW 14 | SSW 14 | SW 13 | SW 21 | SW 19 | SW 18 | SW 18 | SW 18 | SW 18 | SW 17 | SW 16 | SW 16 | SW 16 | SW 16 | SW 16 | SW 15 | SW 14 | SW 14 |
Wave Graph  | |||||||||||||||||||||
 kJ | 1829 | 1799 | 940 | 752 | 672 | 406 | 527 | 825 | 973 | 1610 | 1901 | 2557 | 2726 | 2247 | 2017 | 1571 | 1314 | 1082 | 777 | 746 | 658 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | on | cross-on | glassy | cross-on | cross-on | glassy | glassy | on | glassy | on | cross-on | glassy | glassy | glassy | glassy | glassy | cross-on | glassy | cross-on | cross | glassy |
High Tide | 6:39PM0.68m | 6:45AM0.85m | 7:08PM0.74m | 7:13AM0.84m | 7:38PM0.79m | 7:42AM0.80m | 8:09PM0.81m | 8:11AM0.74m | 8:43PM0.81m | 8:43AM0.66m | 9:22PM0.79m | 9:17AM0.57m | 10:10PM0.75m | ||||||||
Low Tide | 12:38PM0.06m | 00:22AM0.08m | 1:00PM0.03m | 00:56AM0.07m | 1:23PM0.02m | 1:32AM0.07m | 1:48PM0.01m | 2:08AM0.09m | 2:13PM0.01m | 2:47AM0.12m | 2:41PM0.03m | 3:31AM0.17m | 3:12PM0.06m | ||||||||
 | |  | | |  |  | | |  |  |  | | | | | | | | | | |
 | 6:26 | — | — | 6:24 | — | — | 6:24 | — | — | 6:24 | — | — | 6:24 | — | — | 6:24 | — | — | 6:24 | — | — |
 | — | 6:32 | — | — | 6:32 | — | — | 6:32 | — | — | 6:31 | — | — | 6:31 | — | — | 6:31 | — | — | 6:30 | — |
mm | — | — | 1 | — | — | — | — | — | — | 1 | 1 | — | — | 1 | — | — | 1 | — | — | — | — |
Temp °C | 28 | 28 | 27 | 28 | 28 | 27 | 28 | 28 | 27 | 28 | 28 | 27 | 28 | 28 | 27 | 28 | 28 | 27 | 28 | 28 | 27 |
Feels °C | 31 | 30 | 31 | 32 | 31 | 31 | 33 | 32 | 31 | 32 | 32 | 31 | 32 | 32 | 31 | 33 | 31 | 31 | 32 | 32 | 31 |
Swell 1 Height (m) Direction Period (s) | SW 16 | SW 16 | SW 15 | SW 14 | SSW 14 | SW 13 | SSW 13 | SW 19 | SW 18 | SW 18 | SW 18 | SW 18 | SW 17 | SW 16 | SW 16 | SW 16 | SW 16 | SW 16 | SW 15 | SW 14 | SW 14 |
| kJ | 1829 | 1799 | 940 | 752 | 672 | 406 | 499 | 825 | 973 | 1610 | 1901 | 2557 | 2726 | 2247 | 2017 | 1571 | 1314 | 1082 | 777 | 746 | 658 |
Swell 2 Height (m) Direction Period (s) | SSE 7 | WNW 10 | SSE 7 | S 8 | S 7 | S 7 | SW 21 | SSW 13 | SSW 12 | S 12 | S 12 | S 11 | S 11 | S 9 | S 9 | S 8 | S 8 | S 8 | S 8 | S 8 | S 8 |
| kJ | 18 | 19 | 18 | 29 | 40 | 48 | 527 | 346 | 323 | 214 | 214 | 144 | 143 | 108 | 83 | 68 | 64 | 48 | 48 | 46 | 31 |
Swell 3 Height (m) Direction Period (s) | WNW 10 | WNW 10 | WNW 10 | SSW 18 | WNW 9 | WNW 8 | WNW 9 | S 7 | WNW 9 | SW 12 | SW 12 | WNW 9 | WNW 9 | WNW 9 | WNW 8 | WNW 8 | WNW 8 | WNW 8 | WNW 8 | WNW 8 | WNW 8 |
| kJ | 20 | 10 | 18 | 61 | 16 | 14 | 15 | 23 | 16 | 72 | 50 | 15 | 15 | 15 | 14 | 12 | 12 | 13 | 11 | 11 | 12 |
Wind waves Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| kJ | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 26 | 76 | 0 | 26 | 76 | 0 | 0 | 76 | 0 | 26 | 76 | 0 | 0 | 0 | 0 | 0 | 76 | 0 | 10 | 26 | 0 |
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.
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