Surf Forecasts:
Hiliduha surf forecast from 18 Jul 2026:
- Best quality surf: Monday 20 Jul, 1AM (local time) - 3.5ft (1.0m), 18s period, SSW swell with glassy winds.
- Most powerful swell: Monday 20 Jul, 1PM (local time) - 5.5ft (1.7m), 17s period, SSW swell with 1,676 kJ wave energy.
- Next surfable swell (1★+): Saturday 18 Jul, 10PM (local time) - 3.5ft (1.1m), 14s period with SW swell.
Best Forecast Surf Conditions for Hiliduha this week:
The surf forecast for Hiliduha over the next 16 days: The first swell (rated 1 star or higher) is forecast to arrive on Saturday (Jul 18) at 10PM. The primary swell is predicted to be 1.1m and 14s period with a secondary swell of 0.4m and 8s. The wind is predicted to be offshore as the swell arrives.
The most powerful waves expected at Hiliduha in the next 16 days are 1.7m 17s and forecast to arrive on Monday (Jul 20) at 1PM. 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+) | 10PM (Sat 18th Jul) | 3.5ft (1.1m) 14s |
| Best Surf | 1AM (Mon 20th Jul) | 3.5ft (1.0m) 18s |
| Most Powerful | 1PM (Mon 20th Jul) | 5.5ft (1.7m) 17s |
Table - best surf conditions forecast for Hiliduha over the next 16 days.
The Lowdown
Right, listen up, let's talk about the waves. This is a spot that's got a bit of a slow start, but the back half of the outlook is where the real story is. The water's sitting at a pretty normal 86° for this time of year, nothing out of the ordinary.
We kick things off this Saturday, the 18th of July. The first swell is a solid 4ft of SW groundswell, with a nice long 14-second period. The energy is moderate (650). Saturday morning has a light cross-offshore breeze, keeping things clean, but the real treat is the afternoon when the wind goes glassy. It's a solid start.
Sunday the 19th sees the swell dip a little to 4ft, but with a similar 13-second period. The morning is clean again with a cross-offshore breeze, but the afternoon turns onshore. It's a short-lived window.
Now, hold on to your board. Monday the 20th of July is where it starts to get interesting. The swell jumps to 5ft, and it's swung to the SSW with a long 17-second period. The energy is strong (1589). Monday morning is glassy and clean. This is a standout for the first week, but at 5ft, it's getting a bit chunky for beginners. The conditions are excellent for those with some experience.
The quality continues into Tuesday the 21st with another 5ft SSW swell, 15-second period, and glassy conditions in the morning. The energy is still strong (1061). This is a top-notch run.
After that, the swell backs off through the middle of the week, dropping to 4ft and then 3ft by Thursday the 23rd, with onshore winds making a mess of things. It's a bit of a lull until the next week.
The real firecracker is waiting for us. Friday the 31st of July, the swell pumps up to 6ft from the SW with a very long 18-second period and massive energy (3337). The morning is glassy and clean. Saturday the 1st of August is even bigger, with 8ft of that same SW groundswell, glassy morning conditions, and energy going through the roof (3347). This is the absolute best of the outlook, but I have to be straight with you – at 8ft, this is serious, expert-only territory. The long period from the SW will be firing at this reef break, and the morning glass-offs will be perfect.
The run continues into Sunday the 2nd of August with 7ft waves and cleaner conditions, but the peak is definitely that Friday and Saturday. The second week looks promising, but it's a long way out, so don't book the time off just yet.
Signing off,
Rusty
Short Range ForecastHeavy rain (total 22mm), heaviest during Sat afternoon. Warm (max 28°C on Sat morning, min 25°C on Sat afternoon). Wind will be generally light. | Days 4-6 Weather SummaryLight rain (total 9mm), mostly falling on Thu night. Warm (max 28°C on Tue morning, min 26°C on Tue night). Wind will be generally light. | ||||||||||||||||||||
Saturday 18 | Sunday 19 | Monday 20 | Tuesday 21 | Wednesday 22 | Thursday 23 | Friday 24 | |||||||||||||||
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 14 | SW 14 | SW 14 | SW 13 | SW 13 | SSW 18 | SSW 17 | SSW 16 | SSW 16 | SSW 15 | SSW 14 | SSW 14 | SSW 13 | SSW 13 | SSW 13 | SSW 12 | S 11 | S 11 | S 10 | S 10 | S 10 |
Wave Graph  | |||||||||||||||||||||
 kJ | 590 | 581 | 471 | 406 | 394 | 630 | 1543 | 1487 | 1397 | 1024 | 930 | 735 | 427 | 384 | 405 | 167 | 305 | 317 | 302 | 333 | 354 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-off | glassy | off | cross-off | on | glassy | glassy | cross-on | glassy | glassy | glassy | glassy | glassy | on | cross-on | cross-on | cross-on | glassy | cross | glassy | glassy |
High Tide | 9:13PM0.66m | 9:17AM0.77m | 9:58PM0.67m | 9:53AM0.68m | 10:45PM0.66m | 10:29AM0.57m | 11:38PM0.64m | 11:08AM0.48m | 00:40AM0.62m | 12:03PM0.40m | 1:54AM0.61m | 1:43PM0.34m | 3:07AM0.62m | ||||||||
Low Tide | 3:06PM0.05m | 2:51AM0.14m | 3:36PM0.08m | 3:39AM0.21m | 4:05PM0.11m | 4:32AM0.27m | 4:35PM0.14m | 5:39AM0.31m | 5:09PM0.17m | 7:25AM0.33m | 5:54PM0.20m | 9:52AM0.30m | 7:01PM0.21m | ||||||||
 |  |  |  |  |  | | |  |  | | |  | | | | | | | | | |
 | 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 | — | — | 6:38 | — |
mm | 5 | 8 | 4 | 1 | — | 4 | — | — | — | 1 | 1 | 2 | — | — | — | — | — | 5 | 4 | 2 | 2 |
Temp °C | 28 | 27 | 26 | 27 | 27 | 27 | 28 | 28 | 27 | 28 | 28 | 27 | 28 | 28 | 28 | 28 | 28 | 28 | 28 | 28 | 28 |
Feels °C | 32 | 31 | 28 | 30 | 30 | 31 | 32 | 31 | 31 | 32 | 32 | 31 | 32 | 32 | 31 | 31 | 31 | 32 | 31 | 33 | 33 |
Swell 1 Height (m) Direction Period (s) | SW 14 | SW 14 | SW 14 | SW 13 | SW 13 | SW 13 | SSW 17 | SSW 16 | SSW 16 | SSW 15 | SSW 14 | SSW 14 | SSW 13 | SSW 13 | SSW 13 | S 9 | S 11 | S 11 | S 10 | S 10 | S 10 |
| kJ | 590 | 581 | 471 | 406 | 394 | 394 | 1543 | 1487 | 1397 | 1024 | 930 | 735 | 427 | 384 | 405 | 104 | 305 | 317 | 302 | 333 | 354 |
Swell 2 Height (m) Direction Period (s) | W 8 | W 8 | S 8 | S 8 | S 8 | SSW 18 | S 6 | S 6 | S 8 | WNW 8 | WNW 8 | WNW 8 | S 7 | S 7 | SSW 16 | SSW 12 | WNW 10 | SW 16 | SSW 13 | SW 15 | SW 15 |
| kJ | 31 | 29 | 21 | 33 | 33 | 630 | 28 | 18 | 18 | 19 | 19 | 38 | 50 | 37 | 99 | 167 | 33 | 90 | 70 | 106 | 143 |
Swell 3 Height (m) Direction Period (s) | S 8 | S 8 | WNW 8 | WNW 7 | WNW 7 | S 7 | WNW 7 | WNW 7 | WNW 8 | SSE 7 | WNW 10 | W 9 | WNW 8 | WNW 8 | WNW 7 | WNW 11 | SW 15 | WNW 10 | WNW 9 | WNW 9 | WNW 9 |
| kJ | 29 | 30 | 19 | 18 | 17 | 27 | 18 | 18 | 24 | 18 | 10 | 6 | 23 | 19 | 17 | 37 | 55 | 32 | 29 | 17 | 16 |
Wind waves Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| kJ | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 0 | 0 | 0 | 0 | 74 | 0 | 0 | 10 | 0 | 0 | 0 | 0 | 0 | 10 | 22 | 22 | 74 | 0 | 22 | 0 | 0 |
Best forecast wave conditions in Nias | |||||||||||||||||||||
Best forecast wave conditions in Indonesia | |||||||||||||||||||||
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Information about the Hiliduha Surf forecast
The above surf forecast table for Hiliduha provides essential information for determining whether the surfing conditions will be good over the next 16 days. A general guide to surfing at Hiliduha can be found by selecting the local surf guide option on the grey menu. Our Hiliduha 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 (Hiliduha) 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 Hiliduha 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 Hiliduha, camping, hotels and holiday cottages in Nias, consider staying in Afia which is 96 km (60 miles) away.
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