Surf Forecasts:
Hilisataro surf forecast from 10 Aug 2026:
- Best quality surf: Monday 10 Aug, 4PM (local time) - 3.5ft (1.1m), 22s period, SSW swell with glassy winds.
- Most powerful swell: Tuesday 11 Aug, 4PM (local time) - 7.5ft (2.3m), 18s period, SSW swell with 3,443 kJ wave energy.
- Next surfable swell (1★+): Monday 10 Aug, 4PM (local time) - 3.5ft (1.1m), 22s period with SSW 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 Monday (Aug 10) at 4PM. The primary swell is predicted to be 1.7m and 14s period with a secondary swell of 1.1m and 22s. The wind is predicted to be glassy as the swell arrives.
The most powerful waves expected at Hilisataro in the next 16 days are 2.3m 18s and forecast to arrive on Tuesday (Aug 11) at 4PM. 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+) | 4PM (Mon 10th Aug) | 3.5ft (1.1m) 22s |
| Best Surf | 4PM (Mon 10th Aug) | 3.5ft (1.1m) 22s |
| Most Powerful | 4PM (Tue 11th Aug) | 7.5ft (2.3m) 18s |
Table - best surf conditions forecast for Hilisataro over the next 16 days.
The Lowdown
Alright, Rusty here. Let's break this one down over the next couple of weeks in feet and miles per hour.
No gap to start – the waves are on right away. A solid S/SSW groundswell is pushing into Hilisataro, a reef break for the advanced crew only. Water temp is around 86°, which is pretty average for the season.
Monday we get going. Monday morning is a bit average with an onshore breeze, but Monday afternoon the wind goes glassy. We're looking at a 6ft SSW swell with a 14-second period, putting moderate to strong energy into the zone (2217). It'll be a solid session.
Tuesday afternoon is the big standout of the first week. Glassy conditions, an 8ft SSW swell with a very long 18-second period. That's some serious power, with strong wave energy (3465). For a reef break, that long period should line up nicely. Wednesday and Thursday keep the swell around 5ft to 7ft, with plenty of glassy windows, especially Wednesday arvo and Friday.
Saturday the 15th morning is a beauty – 5ft S swell, glassy, clean as a whistle. Saturday arvo gets a light cross-offshore, still good. Sunday the 16th has a dip in energy to about 4ft, but the glassy morning is the clear winner.
Monday the 17th through Wednesday the 19th morning sees a lull, with smaller 4ft to 6ft swell and onshore or cross-onshore winds. A bit average.
Then, Wednesday the 19th afternoon delivers the second true standout. A solid 8ft SSW groundswell with an 18-second period, dead calm, glassy. That's expert territory, and the energy is very strong (4175). Thursday the 20th morning is also glassy at 8ft. This run stays clean right through Friday.
By the weekend of the 22nd, we're back around 7ft to 6ft with good periods, but the wind starts shifting onshore or cross. Monday the 24th has some size again at 7ft, but the wind is messy.
So, pick your windows: Tuesday the 11th and Wednesday the 19th afternoons are your all-time best bets. Warm water, heavy swell, dead clean. Get amongst it.
Rusty.
Short Range ForecastHeavy rain (total 31mm), heaviest during Mon night. Warm (max 28°C on Mon morning, min 26°C on Mon night). Wind will be generally light. | Days 4-6 Weather SummaryHeavy rain (total 40mm), heaviest during Thu afternoon. Warm (max 28°C on Thu morning, min 25°C on Fri afternoon). Wind will be generally light. | ||||||||||||||||||||
Monday 10 | Tuesday 11 | Wednesday 12 | Thursday 13 | Friday 14 | Saturday 15 | Sunday 16 | |||||||||||||||
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) | SSW 14 | SSW 22 | SSW 19 | SSW 19 | SSW 18 | SSW 17 | SSW 17 | SSW 16 | SSW 16 | S 13 | S 12 | SSW 17 | SSW 16 | SSW 16 | SSW 15 | S 14 | S 13 | S 13 | S 12 | S 15 | SSW 14 |
Wave Graph  | |||||||||||||||||||||
 kJ | 1187 | 1111 | 1724 | 2530 | 3443 | 2605 | 2197 | 1537 | 1518 | 633 | 566 | 1400 | 1482 | 1358 | 1441 | 869 | 784 | 563 | 513 | 711 | 752 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | on | glassy | glassy | on | glassy | glassy | on | glassy | glassy | cross-on | cross | glassy | glassy | cross-off | glassy | glassy | cross-off | cross-off | glassy | cross | cross-on |
High Tide | 4:27PM0.43m | 4:51AM0.86m | 5:23PM0.51m | 5:40AM0.92m | 6:08PM0.59m | 6:23AM0.94m | 6:49PM0.67m | 7:03AM0.94m | 7:28PM0.73m | 7:39AM0.90m | 8:06PM0.77m | 8:13AM0.83m | 8:42PM0.78m | ||||||||
Low Tide | 11:11AM0.14m | 9:50PM0.14m | 11:53AM0.08m | 10:54PM0.09m | 12:29PM0.04m | 11:46PM0.06m | 1:01PM0.02m | 00:32AM0.04m | 1:30PM0.01m | 1:15AM0.05m | 1:56PM0.02m | 1:55AM0.08m | 2:21PM0.03m | 2:34AM0.12m | |||||||
 | |  | | | | | | | | | | |  |  |  | | | | | | |
 | 6:28 | — | — | 6:28 | — | — | 6:28 | — | — | 6:28 | — | — | 6:28 | — | — | 6:28 | — | — | 6:28 | — | — |
 | — | 6:37 | — | — | 6:37 | — | — | 6:37 | — | — | 6:37 | — | — | 6:37 | — | — | 6:37 | — | — | 6:36 | — |
mm | 2 | 1 | 5 | 3 | 5 | 3 | 2 | 2 | 8 | 2 | 7 | 6 | 5 | — | 2 | — | 3 | 15 | 2 | 6 | 5 |
Temp °C | 28 | 28 | 27 | 28 | 28 | 27 | 28 | 28 | 27 | 28 | 28 | 26 | 27 | 26 | 26 | 28 | 28 | 27 | 27 | 27 | 26 |
Feels °C | 32 | 32 | 31 | 32 | 33 | 31 | 32 | 32 | 31 | 32 | 32 | 30 | 31 | 30 | 30 | 32 | 32 | 30 | 31 | 29 | 30 |
Swell 1 Height (m) Direction Period (s) | SSW 14 | SSW 14 | SSW 13 | SSW 19 | SSW 18 | SSW 17 | SSW 17 | SSW 16 | SSW 16 | S 13 | S 12 | SSW 17 | SSW 16 | SSW 16 | SSW 15 | S 14 | S 13 | S 13 | S 12 | S 15 | SSW 14 |
| kJ | 1187 | 1111 | 867 | 2530 | 3443 | 2605 | 2197 | 1537 | 1518 | 633 | 566 | 1400 | 1482 | 1358 | 1441 | 869 | 784 | 563 | 513 | 711 | 752 |
Swell 2 Height (m) Direction Period (s) | WNW 8 | SSW 22 | SSW 19 | SSW 13 | WNW 8 | WNW 8 | WNW 8 | WNW 8 | SSW 20 | SW 16 | SSW 18 | S 11 | S 11 | S 11 | SW 19 | SW 17 | SW 16 | SW 16 | SW 15 | SW 15 | WNW 8 |
| kJ | 55 | 1051 | 1724 | 632 | 22 | 22 | 22 | 12 | 77 | 236 | 540 | 401 | 272 | 282 | 184 | 547 | 299 | 411 | 318 | 221 | 39 |
Swell 3 Height (m) Direction Period (s) | SSW 23 | WNW 8 | SW 21 | W 8 | — | WNW 10 | SSW 13 | WNW 10 | WNW 8 | SSW 19 | SW 15 | WNW 11 | WNW 11 | WNW 11 | WNW 11 | WNW 10 | S 18 | S 16 | WNW 9 | WNW 9 | SW 26 |
| kJ | 365 | 55 | 548 | 34 | — | 11 | 17 | 10 | 11 | 286 | 137 | 37 | 41 | 40 | 38 | 34 | 165 | 134 | 26 | 30 | 26 |
Wind waves Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| kJ | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 26 | 0 | 0 | 26 | 0 | 0 | 26 | 0 | 0 | 26 | 17 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 76 | 26 |
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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