Surf Forecasts:
Hilisataro surf forecast from 22 Aug 2026:
- Best quality surf: Monday 24 Aug, 1AM (local time) - 5ft (1.6m), 14s period, SSW swell with glassy winds.
- Most powerful swell: Thursday 27 Aug, 10PM (local time) - 6ft (1.9m), 18s period, SW swell with 2,078 kJ wave energy.
- Next surfable swell (1★+): Monday 24 Aug, 1AM (local time) - 5ft (1.6m), 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 Monday (Aug 24) at 1AM. The primary swell is predicted to be 1.6m and 14s period with a secondary swell of 1.0m and 18s. The wind is predicted to be glassy as the swell arrives.
The most powerful waves expected at Hilisataro in the next 16 days are 1.9m 18s and forecast to arrive on Thursday (Aug 27) at 10PM. 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+) | 1AM (Mon 24th Aug) | 5ft (1.6m) 14s |
| Best Surf | 1AM (Mon 24th Aug) | 5ft (1.6m) 14s |
| Most Powerful | 10PM (Thu 27th Aug) | 6ft (1.9m) 18s |
Table - best surf conditions forecast for Hilisataro over the next 16 days.
The Lowdown
Alright folks, Rusty here. Let’s break down what’s cookin’ at Hilisataro for the next couple of weeks.
First off, you’re gonna need some patience. The early stuff this Saturday and Sunday is pretty flat and messy—wind’s on it or cross-on, and it’s just not worth wetting a wetsuit for. The first real chance to get a decent wave comes Monday morning, 24 August.
Monday morning is looking clean. Glassy conditions, with a 6 ft swell from the SSW, period a solid 17 seconds. That’s proper groundswell. The wave energy is strong at 1750, and the call is "excellent surf conditions for experienced surfers". That’s a standout for the first week. Water temp is about 86°F, right around normal for this time of year. It’s a reef break, so that long-period energy will wrap in nicely. Crowds are sometimes an issue, so don’t expect solitude.
Tuesday afternoon (25 August) also gets a thumbs up, with clean conditions and a 6 ft SSW swell. The wind goes cross-offshore, which is a nice bonus. Wednesday morning (26 August) is glassy and 5 ft, but the energy drops to 726, so it’s a bit weaker. Still fun.
Now, the real highlight is sitting at the start of September. Monday 31 August through to Wednesday 2 September is looking absolutely pumping. You’ve got 5 ft to 8 ft swells, all from the SW, with periods between 16 and 18 seconds, and glassy winds across the board. The energy readings are massive—up to 3258 on Tuesday 1 September. That’s very strong. The conditions are rated "excellent for experienced surfers". This is the best of the whole run. If you’re an advanced surfer, this is your window. That 8 ft swell is too big for beginners.
After that, the swell fades through the end of the second week, with smaller 3 ft to 4 ft waves and glassy mornings, but nothing to write home about. The last few days are small—2 ft to 3 ft—and mostly average.
So, the call is clear: Monday 24 August morning is your first decent session, but if you can wait, the run from Monday 31 August to Wednesday 2 September is the true standout. That’s the one to mark on the calendar.
Stay wet, stay stoked.
Rusty.
Short Range ForecastHeavy rain (total 23mm), heaviest during Mon night. Warm (max 29°C on Sat afternoon, min 26°C on Sat night). Wind will be generally light. | Days 4-6 Weather SummaryHeavy rain (total 27mm), heaviest during Tue night. Warm (max 28°C on Thu morning, min 26°C on Tue night). Wind will be generally light. | ||||||||||||||||||||
Saturday 22 | Sunday 23 | Monday 24 | Tuesday 25 | Wednesday 26 | Thursday 27 | Friday 28 | |||||||||||||||
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 16 | SSW 15 | SSW 14 | SSW 14 | SSW 14 | SSW 14 | SSW 17 | SSW 16 | SSW 16 | SSW 15 | SSW 15 | SSW 14 | SSW 13 | SSW 13 | SW 16 | SW 19 | SW 19 | SW 17 | SW 16 | SW 16 | SW 15 |
Wave Graph  | |||||||||||||||||||||
 kJ | 2257 | 1896 | 1600 | 1206 | 979 | 933 | 1728 | 700 | 1654 | 1364 | 1208 | 982 | 680 | 590 | 532 | 730 | 882 | 2030 | 1715 | 1513 | 940 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | on | cross-on | cross-on | on | cross-on | glassy | glassy | cross-on | cross-on | cross-on | cross-off | glassy | glassy | glassy | glassy | glassy | cross-on | cross-on | on | cross-on | glassy |
High Tide | 2:40AM0.58m | 3:29PM0.33m | 3:53AM0.63m | 4:34PM0.39m | 4:41AM0.69m | 5:11PM0.46m | 5:17AM0.76m | 5:42PM0.53m | 5:48AM0.81m | 6:11PM0.61m | 6:17AM0.84m | 6:39PM0.68m | |||||||||
Low Tide | 5:36PM0.24m | 11:13AM0.26m | 7:54PM0.26m | 11:25AM0.21m | 9:34PM0.23m | 11:40AM0.17m | 10:29PM0.18m | 11:58AM0.13m | 11:10PM0.14m | 12:17PM0.09m | 11:47PM0.11m | 12:38PM0.06m | 00:22AM0.08m | ||||||||
 |  |  | | | | | | | | | | |  |  | | | | | | | |
 | 6:26 | — | — | 6:26 | — | — | 6:26 | — | — | 6:26 | — | — | 6:26 | — | — | 6:26 | — | — | 6:26 | — | — |
 | — | 6:35 | — | — | 6:35 | — | — | 6:34 | — | — | 6:34 | — | — | 6:34 | — | — | 6:34 | — | — | 6:32 | — |
mm | 1 | — | 3 | 2 | 1 | 2 | 2 | 3 | 9 | 3 | 5 | 12 | 2 | — | — | 2 | 1 | 2 | — | — | — |
Temp °C | 28 | 29 | 28 | 28 | 28 | 27 | 28 | 27 | 27 | 27 | 27 | 26 | 27 | 27 | 27 | 28 | 28 | 27 | 28 | 28 | 27 |
Feels °C | 32 | 32 | 32 | 31 | 31 | 31 | 33 | 30 | 30 | 31 | 30 | 29 | 31 | 31 | 31 | 32 | 31 | 31 | 32 | 32 | 31 |
Swell 1 Height (m) Direction Period (s) | SSW 16 | SSW 15 | SSW 14 | SSW 14 | SSW 14 | SSW 14 | SSW 17 | SSW 13 | SSW 16 | SSW 15 | SSW 15 | SSW 14 | SSW 13 | SSW 13 | SW 16 | SW 15 | SW 14 | SW 17 | SW 16 | SW 16 | SW 15 |
| kJ | 2257 | 1896 | 1600 | 1206 | 979 | 933 | 1728 | 530 | 1654 | 1364 | 1208 | 982 | 680 | 590 | 532 | 505 | 529 | 2030 | 1715 | 1513 | 940 |
Swell 2 Height (m) Direction Period (s) | WNW 8 | WNW 9 | WNW 8 | SSW 21 | SSW 20 | SSW 18 | WNW 8 | SSW 16 | WNW 9 | WNW 8 | WNW 8 | WNW 8 | S 7 | S 7 | SSW 12 | SW 19 | SW 19 | S 8 | S 7 | S 7 | S 7 |
| kJ | 23 | 26 | 23 | 260 | 596 | 596 | 12 | 700 | 15 | 13 | 13 | 13 | 34 | 38 | 254 | 730 | 882 | 46 | 26 | 25 | 23 |
Swell 3 Height (m) Direction Period (s) | W 15 | S 26 | SSW 24 | SSW 18 | WNW 8 | WNW 9 | WNW 10 | WNW 10 | — | W 13 | WNW 8 | SW 20 | WNW 8 | SW 18 | SW 22 | SSW 12 | S 9 | WNW 11 | WNW 10 | WNW 10 | WNW 9 |
| kJ | 4 | 13 | 108 | 61 | 12 | 15 | 10 | 18 | — | 3 | 6 | 15 | 12 | 81 | 118 | 136 | 55 | 22 | 19 | 18 | 16 |
Wind waves Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | S 6 | S 5 | S 5 | — | — | — | — | — | — | — | — | — | — |
| kJ | — | — | — | — | — | — | — | — | 69 | 35 | 36 | — | — | — | — | — | — | — | — | — | — |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 26 | 76 | 167 | 26 | 76 | 0 | 0 | 167 | 167 | 26 | 0 | 0 | 0 | 0 | 0 | 0 | 76 | 76 | 26 | 76 | 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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