
Surf Forecasts:
Hilisataro surf forecast from 6 Sep 2026:
- Best quality surf: Thursday 10 Sep, 7PM (local time) - 5ft (1.5m), 17s period, SW swell with cross-offshore winds.
- Most powerful swell: Sunday 13 Sep, 1AM (local time) - 7ft (2.1m), 19s period, SW swell with 2,856 kJ wave energy.
- Next surfable swell (1★+): Thursday 10 Sep, 1AM (local time) - 4ft (1.2m), 14s 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 Thursday (Sep 10) at 1AM. The primary swell is predicted to be 1.2m and 14s period with a secondary swell of 1.1m and 10s. The wind is predicted to be glassy as the swell arrives.
The most powerful waves expected at Hilisataro in the next 16 days are 2.1m 19s and forecast to arrive on Sunday (Sep 13) at 1AM. Winds are predicted to be glassy at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.5m 4s period and expected on Friday (Sep 11) at 1AM.
| Wave Type | Time (WIB) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 1AM (Thu 10th Sep) | 4ft (1.2m) 14s |
| Best Surf | 7PM (Thu 10th Sep) | 5ft (1.5m) 17s |
| Most Powerful | 1AM (Sun 13th Sep) | 7ft (2.1m) 19s |
Table - best surf conditions forecast for Hilisataro over the next 16 days.
The Lowdown
Alright, Rusty here, let’s talk about Hilisataro for the next couple of weeks.
So, Hilisataro is an advanced reef break that breaks fairly consistently, catching a solid SW groundswell. The water’s about 87°, which is a bit warmer than average for this time of year – you’ll feel that extra warmth. First few days are rough – onshore winds and stormy skies, so don’t expect much.
Sunday the 6th and Monday the 7th are mediocre – onshore SE winds, messy, waves around 4ft to 4ft, but with a 15-16 second period, there’s some long-period groundswell in the water, just wasted by the wind. Tuesday the 8th isn’t much better; swell drops a bit, but the period stretches to 18 seconds – that’s a very long period groundswell, which at a reef can mean long, clean lines, but the cross-onshore wind spoils it. Wednesday the 9th sees the swell bump to 5ft, but again, onshore winds kill the quality.
Thursday the 10th is where it turns. Morning is glassy – almost no wind, just a whisper from the ENE at 3 mph. The swell is 5ft from the SW, with a 16-second period, and strong energy. That’s proper groundswell and the reef will be clean and lined up. The afternoon stays glassy too – 5ft, 17-second period, still clean. That’s a standout for the early part.
Friday the 11th sees the swell push to 5ft, but the wind swings cross-offshore, cleaning it up, though it gets stronger in the afternoon (16 mph). It’s rideable, but not as polished. Saturday the 12th is mixed – onshore winds in the morning, but the afternoon brings a 5ft swell with a massive 19-second period and very strong energy, but the cross-onshore wind chops it up.
Sunday the 13th is the first real highlight. Morning is glassy, 7ft of SW groundswell, 17-second period, very strong energy. That’s powerful and clean – for experts only. The afternoon stays clean with a light offshore from the NW at 3 mph. This is a standout day.
Monday the 14th and Tuesday the 15th drop back – 5ft to 6ft, but onshore winds return. Wednesday the 16th sees a return to glassy conditions in the morning – 5ft, 14-second period, moderate energy, but clean and fun.
Friday the 18th – another beauty. Morning glassy, 6ft of SW groundswell, 16-second period, strong energy. The afternoon stays glassy with 6ft and a massive energy spike. This is a serious session.
Saturday the 19th is the absolute standout. Morning is dead calm – 0 mph wind, glassy as can be, 8ft of SW groundswell, 17-second period, very strong energy. That’s a powerful, clean swell for experts only. The afternoon gets a bit cross-shore, but the morning is the pick.
Sunday the 20th is still solid – 6ft, glassy morning, strong energy. Monday the 21st winds down with 5ft and clean conditions. The real standouts are Thursday the 10th for a clean, fun session, and Saturday the 19th for a powerful, glassy bomb day.
Rusty.
Short Range ForecastHeavy rain (total 23mm), heaviest during Tue night. Warm (max 28°C on Sun afternoon, min 26°C on Sun night). Wind will be generally light. | Days 5-7 Weather SummaryHeavy rain (total 46mm), heaviest during Wed night. Warm (max 28°C on Wed afternoon, min 26°C on Wed night). Wind will be generally light. | |||||||||||||||||||
Sun 6 | Monday 7 | Tuesday 8 | Wednesday 9 | Thursday 10 | Friday 11 | Saturday 12 | ||||||||||||||
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 16 | SSW 16 | SSW 15 | SSW 14 | SSW 20 | SSW 18 | SSW 18 | SSW 16 | SSW 15 | SSW 15 | SSW 14 | SW 16 | SW 17 | SW 16 | SW 16 | SW 15 | SW 21 | SW 20 | SW 19 | SW 19 |
Wave Graph | ||||||||||||||||||||
674 | 818 | 544 | 400 | 277 | 578 | 673 | 993 | 897 | 730 | 561 | 929 | 1036 | 1115 | 1194 | 979 | 1167 | 746 | 1935 | 2856 | |
Wind (km/h) | ||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | on | on | on | cross-on | on | on | cross-on | cross-on | on | cross-on | glassy | glassy | cross-off | cross-off | cross | cross-on | glassy | glassy | glassy | glassy |
High Tide | 2:30AM0.70m | 3:27PM0.40m | 3:46AM0.76m | 4:31PM0.49m | 4:41AM0.82m | 5:14PM0.60m | 5:25AM0.86m | 5:52PM0.70m | 6:03AM0.88m | 6:27PM0.78m | 6:38AM0.85m | 7:01PM0.83m | ||||||||
Low Tide | 6:19PM0.23m | 10:18AM0.20m | 8:43PM0.23m | 10:58AM0.13m | 10:05PM0.17m | 11:31AM0.09m | 11:00PM0.12m | 11:59AM0.05m | 11:45PM0.07m | 12:24PM0.03m | 00:25AM0.05m | 12:48PM0.02m | 1:02AM0.05m | |||||||
— | — | 6:22 | — | — | 6:22 | — | — | 6:22 | — | — | 6:22 | — | — | 6:20 | — | — | 6:20 | — | — | |
6:30 | — | — | 6:30 | — | — | 6:29 | — | — | 6:29 | — | — | 6:29 | — | — | 6:28 | — | — | 6:28 | — | |
mm | — | 6 | 2 | — | 6 | — | — | 7 | 2 | 2 | 11 | 1 | 3 | 13 | 8 | 1 | 3 | 4 | 4 | 4 |
Temp °C | 28 | 27 | 28 | 28 | 27 | 28 | 28 | 27 | 28 | 28 | 27 | 28 | 28 | 26 | 26 | 26 | 26 | 27 | 27 | 26 |
Feels °C | 31 | 31 | 31 | 31 | 30 | 31 | 31 | 31 | 32 | 31 | 31 | 33 | 32 | 29 | 29 | 28 | 30 | 32 | 31 | 30 |
Swell 1 Height (m) Direction Period (s) | SSW 16 | SSW 16 | S 8 | S 8 | S 8 | S 10 | S 10 | SSW 16 | SSW 15 | SSW 15 | SSW 14 | SW 16 | SW 17 | SW 16 | W 9 | W 8 | SW 14 | SW 15 | SW 19 | SW 19 |
674 | 818 | 206 | 196 | 205 | 320 | 262 | 993 | 897 | 730 | 561 | 929 | 1036 | 1115 | 640 | 331 | 763 | 685 | 1935 | 2856 | |
Swell 2 Height (m) Direction Period (s) | S 9 | S 8 | SSW 15 | SSW 14 | SSW 13 | SSW 18 | SSW 18 | S 9 | S 9 | S 9 | S 10 | S 11 | S 11 | S 11 | SW 16 | SW 15 | SW 21 | SW 20 | SW 14 | S 9 |
189 | 161 | 544 | 400 | 277 | 578 | 673 | 164 | 198 | 194 | 234 | 274 | 269 | 184 | 1194 | 979 | 1167 | 746 | 536 | 42 | |
Swell 3 Height (m) Direction Period (s) | SSW 19 | WNW 7 | SSW 21 | SW 21 | SSW 20 | SSW 13 | SSW 12 | SSW 12 | S 14 | S 13 | SW 18 | W 11 | W 10 | SW 26 | S 10 | S 10 | W 7 | S 10 | S 9 | WNW 8 |
125 | 5 | 45 | 109 | 259 | 189 | 117 | 82 | 65 | 87 | 255 | 9 | 8 | 26 | 100 | 98 | 76 | 67 | 60 | 13 | |
Wind waves Height (m) Direction Period (s) | — | S 8 | — | — | S 8 | — | — | — | — | — | — | — | — | W 4 | — | — | — | — | — | — |
— | 212 | — | — | 277 | — | — | — | — | — | — | — | — | 8 | — | — | — | — | — | — | |
Nearest Offshore or Glassy | ||||||||||||||||||||
Distance (km) | 26 | 76 | 26 | 26 | 76 | 0 | 26 | 167 | 26 | 76 | 76 | 17 | 0 | 0 | 0 | 167 | 167 | 167 | 76 | 76 |
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.










