Sebatu sits outside Lagundri Bay in South Nias, facing the full Indian Ocean swell window and producing serious big-wave conditions. The wave is for committed big-wave chargers only, with heavy, hollow faces that can exceed 15 feet. Its open-ocean exposure means it picks up every swell that the bay misses, offering a completely different challenge to the point breaks inside Lagundri.
Model forecast for swell, wind and tide.
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Water temp
28°C
Wetsuit
Boardshorts / Rashguard
Difficulty
8/10
Crowd level
5/10
Access: Fly to Gunungsitoli via Medan, drive to south coast
The Sebatu profile favors high tide, ideally between 1m and 2m on the local tide chart. Compare this preference with the forecast tide and local conditions before choosing a session.
The Sebatu profile uses wind from N (0°) as its preferred direction, with an offshore range of 330° to 30°. Wind speed matters too: light winds outside that range can still produce surfable conditions, while strong offshore winds can make takeoffs difficult.
The Sebatu scoring profile favors swell from SW (180° to 260°), a swell-height range of 1.5m to 4.6m, and a reference period of 16s. These are model inputs, not guaranteed breaking-wave heights or a promise that the surf will suit every ability.
The main season at Sebatu is Apr-Oct. SW swell season (Apr-Oct), SE trade winds offshore
The spot profile lists GNS as a nearby airport. The estimated road transfer is 45 minutes. Fly to Gunungsitoli via Medan, drive to south coast
Sebatu is a reef break, a peak with lefts and rights. Difficulty is rated 8/10.
Peak: Apr-Oct
SW swell season (Apr-Oct), SE trade winds offshore
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