Racetrack - Sumba
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Swl 2
2.9ft 8s.
50kJ
Swl 1
4.8ft 15s.
452kJ
Wnd
12mph
12mph
Hourly Forecast
Timezone: Asia/Makassar
⏱️s.
⚡️kJ
🔮
🌒
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Racetrack - Sumba surf guide

Racetrack is a surf spot located in Sumba that offers a bit of a challenge for those who are looking to test their skills. The waves here can get pretty action-packed, making it a spot that suits expert surfers the best. While it’s got its moments, it’s not always consistent, so you might find yourself waiting for the right conditions.

The surf here generally works best at mid tide, providing a steep drop into a barrel section that can really pump out some fast walls. The optimal swell direction is from the Southwest, but you can also catch decent waves when the swell comes from the West. This place can handle swell sizes starting from around 2ft (0.6m), with left-breaking reef waves that can deliver some fun rides. If you're planning to surf here, the best wind direction is from the Northeast, so check the forecasts!

For those heading to Racetrack, remember it’s all about the right conditions. Make sure you’re ready for an expert level challenge, as the waves can be demanding. Overall, it’s a spot that can offer good days if the swell is right and the tides align.

Surf reports and surf forecasts nearby Racetrack - Sumba

Savu Right
Unknown Region, Unknown Country
Reef break
Tue 29
Wed 30
Thu 31
Fri 1
Sat 2
Sun 3
Mon 4
Tue 5
Wed 6
Thu 7
Fri 8
Sat 9
Savu Left
Unknown Region, Unknown Country
Reef break
Tue 29
Wed 30
Thu 31
Fri 1
Sat 2
Sun 3
Mon 4
Tue 5
Wed 6
Thu 7
Fri 8
Sat 9
Raijua
Unknown Region, Unknown Country
Reef break
Tue 29
Wed 30
Thu 31
Fri 1
Sat 2
Sun 3
Mon 4
Tue 5
Wed 6
Thu 7
Fri 8
Sat 9
The Office
Unknown Region, Unknown Country
Reef break
Tue 29
Wed 30
Thu 31
Fri 1
Sat 2
Sun 3
Mon 4
Tue 5
Wed 6
Thu 7
Fri 8
Sat 9
Five-O
Unknown Region, Unknown Country
Reef break
Tue 29
Wed 30
Thu 31
Fri 1
Sat 2
Sun 3
Mon 4
Tue 5
Wed 6
Thu 7
Fri 8
Sat 9
Racetrack - Sumba
Unknown Region, Unknown Country
Reef break
Tue 29
Wed 30
Thu 31
Fri 1
Sat 2
Sun 3
Mon 4
Tue 5
Wed 6
Thu 7
Fri 8
Sat 9
Miller's Rights
Unknown Region, Unknown Country
Reef break
Tue 29
Wed 30
Thu 31
Fri 1
Sat 2
Sun 3
Mon 4
Tue 5
Wed 6
Thu 7
Fri 8
Sat 9
Wainukaka
Unknown Region, Unknown Country
Rivermouth break
Tue 29
Wed 30
Thu 31
Fri 1
Sat 2
Sun 3
Mon 4
Tue 5
Wed 6
Thu 7
Fri 8
Sat 9
Pulau Dana
Unknown Region, Unknown Country
Reef break
Tue 29
Wed 30
Thu 31
Fri 1
Sat 2
Sun 3
Mon 4
Tue 5
Wed 6
Thu 7
Fri 8
Sat 9
Mangkudu Lefts
Unknown Region, Unknown Country
Reef break
Tue 29
Wed 30
Thu 31
Fri 1
Sat 2
Sun 3
Mon 4
Tue 5
Wed 6
Thu 7
Fri 8
Sat 9

Readme

Welcome! If you’re new to surf forecasting, check out this quick guide.

Forecast Cheat Sheet

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Models and Updates

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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.