Surf Forecasts:
Hilisataro surf forecast from 12 Sep 2026:
- Best quality surf: Sunday 13 Sep, 7AM (local time) - 7ft (2.1m), 17s period, SW swell with glassy winds.
- Most powerful swell: Sunday 13 Sep, 4AM (local time) - 7ft (2.2m), 18s period, SW swell with 2,888 kJ wave energy.
- Next surfable swell (1★+): Sunday 13 Sep, 7AM (local time) - 7ft (2.1m), 17s 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 Sunday (Sep 13) at 7AM. The primary swell is predicted to be 2.1m and 17s period with a secondary swell of 0.6m and 9s. 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 18s and forecast to arrive on Sunday (Sep 13) at 4AM. Winds are predicted to be cross-onshore at the time the swell arrives.
| Wave Type | Time (WIB) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 7AM (Sun 13th Sep) | 7ft (2.1m) 17s |
| Best Surf | 7AM (Sun 13th Sep) | 7ft (2.1m) 17s |
| Most Powerful | 4AM (Sun 13th Sep) | 7ft (2.2m) 18s |
Table - best surf conditions forecast for Hilisataro over the next 16 days.
The Lowdown
Alright, Rusty here. Let’s break down what’s coming over the next couple weeks in feet and Fahrenheit.
First off, don’t bother paddling out this weekend – there’s nothing good until Monday the 14th. Once that hits, we’ve got a real standout window.
Monday the 14th morning is the pick of the whole run. Hilisataro is the only break on the menu, and it’s a reef break for advanced surfers only. The wind is dead calm – glassy as a mirror – with a 6ft swell out of the southwest. The period is a long 15 seconds, so that’s proper groundswell with a lot of energy – the combined energy reading is 1446, which is moderate to strong. The water temp is about 86°, right on average for this time of year. This is expert territory, not for beginners.
Tuesday the 15th morning is another glassy beauty: 6ft southwest swell, 15-second period, energy at 1431. If you miss Monday, this is your next best bet. Still only for experienced surfers, but it’ll be clean as can be.
Thursday the 17th morning also gives us glassy conditions with 5ft southwest swell and a 14-second period – energy at 1346. A little smaller, but still a nice, clean session for the advanced crew.
The second week gets a bit messy, but Sunday the 27th morning looks solid: clean cross-off winds, 6ft SSW swell, 15-second period, energy at 1379. Sunday afternoon the 27th is dead calm and glassy with 6ft SSW swell. That’s a real strong finish – again, expert-only, but if you’re good, it’s worth the wait.
From the 20th to the 24th, it’s mostly choppy with cross-on winds – not much to write home about. But the first and last few days of this forecast are the real winners.
Remember: this reef is for advanced surfers when it’s over 5ft. If you’ve got the skills, Monday the 14th and Tuesday the 15th are your windows – glassy, long-period SW groundswell, and plenty of power.
Rusty out.
Short Range ForecastHeavy rain (total 30mm), heaviest during Sat night. Warm (max 28°C on Sat afternoon, min 25°C on Mon morning). Wind will be generally light. | Days 5-7 Weather SummaryHeavy rain (total 44mm), heaviest during Fri morning. Warm (max 28°C on Tue afternoon, min 26°C on Wed night). Wind will be generally light. | |||||||||||||||||||
Sat 12 | Sunday 13 | Monday 14 | Tuesday 15 | Wednesday 16 | Thursday 17 | Friday 18 | ||||||||||||||
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 19 | SW 18 | SW 17 | SW 16 | SW 16 | SW 15 | SW 16 | SW 16 | SW 15 | SW 15 | SW 14 | SSW 14 | SW 14 | SW 14 | SW 14 | SW 15 | SW 16 | SSW 13 | SW 15 | SW 14 |
Wave Graph  | ||||||||||||||||||||
 kJ | 1935 | 2987 | 2580 | 2247 | 1764 | 1399 | 1664 | 1761 | 1380 | 1254 | 1031 | 1175 | 857 | 857 | 1016 | 1163 | 1208 | 465 | 773 | 606 |
Wind (km/h) | ||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-on | glassy | cross-on | cross-on | glassy | glassy | cross-off | glassy | glassy | cross-on | cross-on | cross-on | cross-on | cross-on | glassy | cross-on | cross-on | cross-on | glassy | cross-off |
High Tide | 7:01PM0.83m | 7:11AM0.81m | 7:34PM0.85m | 7:42AM0.74m | 8:06PM0.84m | 8:10AM0.66m | 8:37PM0.81m | 8:36AM0.58m | 9:09PM0.75m | 8:58AM0.50m | 9:44PM0.68m | 9:15AM0.43m | 10:29PM0.61m | |||||||
Low Tide | 1:02AM0.05m | 1:11PM0.01m | 1:37AM0.06m | 1:33PM0.02m | 2:10AM0.09m | 1:55PM0.04m | 2:43AM0.13m | 2:18PM0.06m | 3:16AM0.18m | 2:42PM0.10m | 3:55AM0.24m | 3:08PM0.14m | ||||||||
 |  |  | |  | |  |  |  | | | | | | | | | | | | |
 | — | — | 6:20 | — | — | 6:20 | — | — | 6:20 | — | — | 6:20 | — | — | 6:18 | — | — | 6:18 | — | — |
 | 6:28 | — | — | 6:28 | — | — | 6:27 | — | — | 6:27 | — | — | 6:25 | — | — | 6:25 | — | — | 6:25 | — |
mm | — | 8 | 4 | 5 | 8 | 5 | — | — | — | — | 3 | 3 | 4 | 11 | 5 | — | 9 | 9 | 5 | 9 |
Temp °C | 28 | 27 | 28 | 28 | 26 | 25 | 26 | 26 | 28 | 28 | 27 | 28 | 28 | 27 | 28 | 28 | 27 | 27 | 28 | 27 |
Feels °C | 32 | 32 | 31 | 31 | 31 | 30 | 30 | 30 | 32 | 31 | 31 | 32 | 31 | 31 | 32 | 32 | 30 | 31 | 32 | 31 |
Swell 1 Height (m) Direction Period (s) | SW 19 | SW 18 | SW 17 | SW 16 | SW 16 | SW 15 | SW 16 | SW 16 | SW 15 | SW 15 | SW 14 | SSW 14 | SW 14 | SW 14 | SW 14 | SW 15 | SW 16 | SSW 13 | SW 15 | SW 14 |
| kJ | 1935 | 2987 | 2580 | 2247 | 1764 | 1399 | 1664 | 1761 | 1380 | 1254 | 1031 | 1175 | 857 | 857 | 1016 | 1163 | 1208 | 465 | 773 | 606 |
Swell 2 Height (m) Direction Period (s) | SW 15 | S 9 | S 9 | — | S 6 | S 7 | S 7 | S 8 | S 8 | S 8 | S 8 | SW 20 | SW 20 | S 6 | W 10 | S 6 | S 6 | WNW 9 | W 9 | W 9 |
| kJ | 714 | 60 | 79 | — | 51 | 47 | 57 | 55 | 44 | 30 | 29 | 63 | 186 | 113 | 127 | 78 | 55 | 110 | 74 | 54 |
Swell 3 Height (m) Direction Period (s) | S 9 | S 9 | — | — | WSW 18 | — | S 6 | WSW 16 | W 9 | W 9 | W 8 | W 8 | W 8 | SW 18 | SW 18 | W 10 | W 9 | SW 16 | S 7 | SW 18 |
| kJ | 81 | 41 | — | — | 60 | — | 38 | 24 | 7 | 6 | 12 | 12 | 12 | 311 | 111 | 117 | 81 | 248 | 33 | 206 |
Wind waves Height (m) Direction Period (s) | — | — | — | S 6 | — | — | — | — | — | — | — | S 5 | S 5 | — | S 6 | — | — | — | — | — |
| kJ | — | — | — | 39 | — | — | — | — | — | — | — | 23 | 43 | — | 92 | — | — | — | — | — |
Nearest Offshore or Glassy | ||||||||||||||||||||
Distance (km) | 167 | 0 | 76 | 76 | 0 | 0 | 0 | 0 | 0 | 76 | 17 | 76 | 76 | 26 | 0 | 76 | 26 | 26 | 0 | 0 |
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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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