Scar Reef
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Wnd
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Hourly Forecast
Timezone: Asia/Makassar
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Scar Reef surf guide

Scar Reef is the main surf spot in West Sumbawa, known for its challenging waves and sharp reef. It's a hotspot primarily for advanced surfers who are looking to take on some serious risks. With multiple barrel opportunities, this place is definitely not for beginners. The vibe here is laid-back, but don’t underestimate the power of the waves.

When the conditions line up, Scar Reef can dish out some solid waves. The optimal swell direction is from the SouthWest, though it can also take swells coming from the South. This spot handles swell sizes starting at 3 ft (about 1 meter) and can handle much bigger days, often bringing in powerful waves that can exceed double overhead. Expect left-breaking reef waves that can change personality from perfect mid-tide bowls to fast sloping walls as the tide rises. The wind usually blows from the SouthEast, which is ideal for maintaining good shape on the waves.

Scar Reef is best surfed during low to mid and even high tide, giving it some flexibility depending on the day. Keep in mind that this reef is not forgiving, so it's really suited for expert surfers only. Be prepared for a quick take-off as the waves can throw a solid lip, and you’ll need to be on your game to navigate the backdoor sections and the closeout that follows.

Surf reports and surf forecasts nearby Scar Reef

Northern Rights
Unknown Region, Unknown Country
Reef break
Wed 30
Thu 31
Fri 1
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Fly
Unknown Region, Unknown Country
Beach break
Wed 30
Thu 31
Fri 1
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Sun 10
Labuhan Haji
Unknown Region, Unknown Country
Reef break
Wed 30
Thu 31
Fri 1
Sat 2
Sun 3
Mon 4
Tue 5
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Thu 7
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Sun 10
Downtowns
Unknown Region, Unknown Country
Reef break
Wed 30
Thu 31
Fri 1
Sat 2
Sun 3
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Tue 5
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Sun 10
Scar Reef
Unknown Region, Unknown Country
Reef break
Wed 30
Thu 31
Fri 1
Sat 2
Sun 3
Mon 4
Tue 5
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Benete
Unknown Region, Unknown Country
Point break
Wed 30
Thu 31
Fri 1
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Mon 4
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Sun 10
Super Suck
Unknown Region, Unknown Country
Reef break
Wed 30
Thu 31
Fri 1
Sat 2
Sun 3
Mon 4
Tue 5
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Sun 10
Yo-yo's - The Hook
Unknown Region, Unknown Country
Reef break
Wed 30
Thu 31
Fri 1
Sat 2
Sun 3
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Sun 10
Yo-yo's - The Wedge
Unknown Region, Unknown Country
Reef break
Wed 30
Thu 31
Fri 1
Sat 2
Sun 3
Mon 4
Tue 5
Wed 6
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Fri 8
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Sun 10
Sejorong
Unknown Region, Unknown Country
Reef break
Wed 30
Thu 31
Fri 1
Sat 2
Sun 3
Mon 4
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Sun 10
Wind certainty

Wind certainty tells you how much the weather models agree on the forecast.

  • High certainty: Models agree closely; forecast is reliable.
  • Medium certainty: Some disagreement; conditions may shift slightly.
  • Low certainty: Models diverge; treat forecast with caution.

We calculate this by comparing wind speed, gust and direction from multiple models (like GFS, ECMWF, Arome, and Harmonie) and seeing how closely they match. They are weighted, meaning that some models count more than others, depending on how good they are for a certain spot.

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Forecast Cheat Sheet

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Click any table cell to jump to that forecast hour. The map will update with forecast arrows, so you can see if wind and swell direction are lining up.

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On the map, click a metric label to bring that arrow to the front — handy when arrows overlap.

Models and Updates

Surfnerd blends multiple global and local wind and swell models using advanced interpolation and spatial techniques to create an "ensemble" forecast. Forecasts are refreshed hourly.

Surf Predictions

Our AI-driven algorithm scores surf quality, shown by green, orange, and gray dots. Each forecast hour is rated for wind, swell, and tide quality, then combined into an overall score. Here’s the scale:

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