
Surf Forecasts:
Hilisataro surf forecast from 29 Jul 2026:
- Best quality surf: Saturday 1 Aug, 1PM (local time) - 5ft (1.5m), 17s period, SW swell with glassy winds.
- Most powerful swell: Tuesday 4 Aug, 10PM (local time) - 5.5ft (1.7m), 16s period, SSW swell with 1,373 kJ wave energy.
- Next surfable swell (1★+): Wednesday 29 Jul, 1PM (local time) - 3ft (0.9m), 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 Wednesday (Jul 29) at 1PM. The primary swell is predicted to be 0.9m and 15s 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 1.7m 16s and forecast to arrive on Tuesday (Aug 04) at 10PM. Winds are predicted to be offshore at the time the swell arrives.
| Wave Type | Time (WIB) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 1PM (Wed 29th Jul) | 3ft (0.9m) 15s |
| Best Surf | 1PM (Sat 1st Aug) | 5ft (1.5m) 17s |
| Most Powerful | 10PM (Tue 4th Aug) | 5.5ft (1.7m) 16s |
Table - best surf conditions forecast for Hilisataro over the next 16 days.
The Lowdown
G’day, Rusty here. We’ve got a solid run of surf coming up at Hilisataro, a reef break that handles a good SW groundswell. The water’s sitting at 86°—right on average for this time of year, so no surprises there.
The window kicks off with a few marginal days. Wednesday the 29th is a write-off with onshore ESE wind and a weak 3ft SW swell (405 energy). Not worth paddling out. Thursday the 30th stays onshore, but the swell firms up to 3ft–3ft and the energy climbs to 899–935. Still not great.
Then things start to turn. Friday morning the 31st is cross-on, but by Friday afternoon the wind goes glassy, and you’ve got 4ft of SW groundswell (948 energy). That’s the first real window—clean, small, but fun for a keen surfer.
Saturday 1st August is a standout. Glassy calm in the morning, 4ft SW swell, 17-second period, and energy at 1254. That’s a beautiful groundswell, long lines, and the reef will be holding it nicely. Light offshore later in the afternoon too. This is the pick of the early week.
Sunday 2nd is another glassy morning—4ft, 16 seconds, 1135 energy—more of the same high quality. Then Monday 3rd and Tuesday 4th both have glassy mornings with 5ft and 4ft SW swell respectively, and NW wind keeping it clean. The energy stays well over 900, so there’s plenty of punch for the size.
The real standout comes on Wednesday 5th August. Morning offshore wind from the WNW at 6 mph, 5ft SW swell at 15 seconds, and an energy reading of 1411. That’s excellent surf—clean, lined up, and with that long period, this reef will be turning on proper walls. Afternoon goes glassy with 1604 energy. This is the best of the lot.
Thursday 6th holds strong with 6ft SSW groundswell, 17 seconds, and 1968 energy in the morning—glassy, powerful, and for experienced surfers only at that size. Friday 7th morning is cross-off at 6ft, but the afternoon delivers a 9 mph offshore NW breeze and 2043 energy. That’s a big, clean swell, but it’s well over 5ft—beginners should sit this one out.
Saturday 8th is glassy all day, 5ft–6ft SSW swell, energy still well over 1400. Another day for the experienced crew.
Then we hit a rough patch. From Sunday 9th August, the wind swings onshore (ESE, SSE, S) and the swell jumps to 7ft–8ft. The energy is huge—over 2400 to 4475—but the wind is messy, cross-on or onshore, and the surf quality is marginal. That much swell with poor wind makes for a washing machine. Kite surfers might love it, but paddle surfers will struggle.
Monday 10th through Thursday 13th stays pretty average. The swell is still big (6ft–8ft) but wind stays onshore or cross-on. The 13th Thursday afternoon does offer a glassy window with 8ft SSW swell and 2816 energy—that’s a clean, heavy day for experts only.
So, the best on offer? Saturday 1st August morning for a clean, glassy, mid-sized swell. And Wednesday 5th August for the full offshore, 5ft SW groundswell experience. Both are absolute crackers. The rest of the window has plenty of surf, but those two are the true standouts.
Stay safe, read the tide, and I’ll see you out there.
Rusty
Short Range ForecastHeavy rain (total 22mm), heaviest during Thu night. Warm (max 29°C on Fri morning, min 26°C on Wed night). Wind will be generally light. | Days 4-6 Weather SummaryHeavy rain (total 32mm), heaviest during Sat night. Warm (max 28°C on Sat morning, min 26°C on Sat night). Wind will be generally light. | ||||||||||||||||||||
Wednesday 29 | Thursday 30 | Friday 31 | Saturday 1 | Sunday 2 | Monday 3 | Tuesday 4 | |||||||||||||||
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 15 | SW 15 | SSW 14 | SW 19 | SW 18 | SW 18 | SW 17 | SW 16 | SW 16 | SW 17 | SW 17 | SW 16 | SW 16 | SSW 18 | SW 16 | SW 15 | SW 15 | SSW 14 | SW 16 | SW 16 | SSW 16 |
Wave Graph | |||||||||||||||||||||
314 | 309 | 347 | 546 | 649 | 694 | 751 | 589 | 728 | 1050 | 1158 | 1001 | 783 | 596 | 1005 | 893 | 869 | 617 | 617 | 813 | 1257 | |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | on | on | glassy | on | on | on | cross-on | glassy | glassy | glassy | cross | glassy | glassy | cross | cross-off | glassy | cross-off | off | glassy | off | off |
High Tide | 6:33PM0.52m | 6:44AM0.84m | 7:05PM0.57m | 7:13AM0.86m | 7:36PM0.62m | 7:41AM0.86m | 8:07PM0.66m | 8:09AM0.83m | 8:40PM0.69m | 8:38AM0.79m | 9:15PM0.71m | 9:09AM0.72m | 9:55PM0.72m | ||||||||
Low Tide | 12:51PM0.10m | 11:57PM0.10m | 1:15PM0.08m | 00:34AM0.09m | 1:39PM0.07m | 1:09AM0.10m | 2:03PM0.06m | 1:44AM0.11m | 2:28PM0.05m | 2:22AM0.14m | 2:54PM0.05m | 3:01AM0.17m | 3:22PM0.06m | 3:47AM0.21m | |||||||
6:30 | — | — | 6:30 | — | — | 6:30 | — | — | 6:30 | — | — | 6:30 | — | — | 6:30 | — | — | 6:30 | — | — | |
— | 6:38 | — | — | 6:38 | — | — | 6:38 | — | — | 6:38 | — | — | 6:38 | — | — | 6:38 | — | — | 6:37 | — | |
mm | 4 | — | 2 | — | 2 | 7 | — | 2 | 5 | 1 | 4 | 7 | 1 | 3 | 9 | 1 | 2 | 4 | — | 2 | 5 |
Temp °C | 27 | 28 | 27 | 28 | 28 | 27 | 29 | 28 | 27 | 28 | 28 | 27 | 28 | 28 | 27 | 28 | 28 | 27 | 28 | 27 | 26 |
Feels °C | 31 | 32 | 32 | 32 | 32 | 31 | 33 | 32 | 32 | 33 | 32 | 31 | 33 | 32 | 31 | 32 | 32 | 30 | 32 | 30 | 29 |
Swell 1 Height (m) Direction Period (s) | SW 15 | SW 15 | SSW 14 | SSW 14 | SW 18 | SW 18 | SW 17 | SW 16 | SW 16 | SW 17 | SW 17 | SW 16 | SW 16 | SW 15 | SW 16 | SW 15 | SW 15 | SSW 14 | SSW 13 | SW 16 | SSW 16 |
314 | 309 | 347 | 318 | 649 | 694 | 751 | 589 | 728 | 1050 | 1158 | 1001 | 783 | 472 | 1005 | 893 | 869 | 617 | 479 | 813 | 1257 | |
Swell 2 Height (m) Direction Period (s) | S 9 | S 9 | SW 20 | SW 19 | SW 13 | SSW 13 | SSW 13 | SSW 13 | SSW 12 | SSW 12 | WNW 9 | WNW 8 | SSW 19 | SSW 18 | S 8 | S 8 | S 7 | SW 17 | SW 16 | SSW 13 | WNW 9 |
61 | 41 | 331 | 546 | 253 | 273 | 225 | 307 | 115 | 150 | 48 | 41 | 295 | 596 | 52 | 31 | 24 | 243 | 617 | 295 | 115 | |
Swell 3 Height (m) Direction Period (s) | SW 11 | SW 22 | S 8 | S 8 | S 8 | WNW 10 | WNW 10 | WNW 10 | SW 20 | WNW 10 | S 7 | S 7 | S 9 | S 9 | WNW 9 | WNW 8 | WNW 9 | WNW 8 | WNW 10 | WNW 9 | SW 24 |
30 | 163 | 37 | 35 | 33 | 55 | 55 | 52 | 186 | 54 | 15 | 26 | 57 | 57 | 26 | 24 | 26 | 24 | 75 | 88 | 22 | |
Wind waves Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 26 | 76 | 0 | 26 | 76 | 26 | 26 | 0 | 0 | 0 | 18 | 0 | 0 | 167 | 0 | 0 | 0 | 0 | 0 | 0 | 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.










