E-Bay
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Hourly Forecast
Timezone: Asia/Jakarta
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E-Bay surf guide

E-Bay is a surf spot that offers a unique experience for more proficient surfers looking for a challenge. The waves here can be appealing, particularly when the conditions line up just right. While it can have its good days, it’s important to be aware that this spot can be quite fickle, and it may not be the best choice on every trip.

The waves at E-Bay break to the left over live coral, making it a reef break that can deliver some solid rides when the swell is around 4 feet (about 1.2 meters). The optimal swell direction is from the west, and it can handle swells coming from both the southwest and the west. It’s easiest to score the best waves when the wind is coming from the east, and surfers need to pay attention to the tide, as it tends to work well at low, mid, and high levels. However, the take-off zone can get crowded, so it's crucial to maneuver carefully to avoid the coral, especially at lower tides. Novice surfers should probably steer clear of E-Bay and stick to places like Pit Stops and Beng Bengs.

When it comes to the overall surfing experience, expect a vertical drop followed by quick turns, leading to a rush to safety through the channel. At high tide, watch out for two big rocks that can become a hazard. It’s worth noting that while E-Bay can handle various swell sizes, the specific conditions can make it a tricky spot to nail down on a consistent basis. Being an expert surfer is really essential here to make the most of what E-Bay can offer.

Surf reports and surf forecasts nearby E-Bay

Pearlers
Unknown Region, Unknown Country
Reef break
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Beng Bengs
Unknown Region, Unknown Country
Reef break
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E-Bay
Unknown Region, Unknown Country
Reef break
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Pitstops
Unknown Region, Unknown Country
Reef break
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Pirates
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Reef break
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Nipussi
Unknown Region, Unknown Country
Reef break
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Hideaways - Mentawai
Unknown Region, Unknown Country
Reef break
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Bank Vaults
Unknown Region, Unknown Country
Reef break
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Chubbies
Unknown Region, Unknown Country
Reef break
Sat 13
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No-Kandui
Unknown Region, Unknown Country
Reef break
Sat 13
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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.

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"Great Forecasts. Nothing more, nothing less."

Readme

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

Forecast Table

The forecast table (the section on the page with all the numbers) is designed to pack as much information in the screen as possible. Although intimidating at first, it will help you make informed decisions about the waves faster, trust me :D. The table consists of roughly four sections, time and predictions, wind, waves, and tides:

🔮 Time and predictions section

Here we show the forecast thour and the overall surf quality prediction. This is determined based on the wave, wind and tide quality prediction. These individual predictions can be found on the forecast map.

💨 Wind section

The first row on the table (with the 💨 icon) shows wind speed, direction and gust. The more the wind speed the more aggressive the color (from blue, green, orange to red).

🌊 Wave section

The waves section consists of three rows, one for wave height and direction, one for period and one for wave energy. Our algorithm choices the "dominant wave". This is normally the first swell partition, but with heavy local storms it displays the wind waves. If that's the case, we display the numbers in italic and in gray.

🌒 Tide section

The tide section consists of a row with the actual heights per hour (measured at the half hour) and a table that displays the flow of the tide and the extremes (lows and highs).

Forecast map

The forecast map consists of arrows. These arrows represent all wave partitions (swell partitions and wind wave partition) and the wind. This allows you to see things like: a secondary swell or wind waves messes up the surf, or the wind is just a tick offshore so very surfable. Click a metric label in the bottom left to bring that arrow to the front — handy when arrows overlap.

Forecast Cheat Sheet

Short on time? Focus on wave energy. It’s the best single metric to gauge how big and powerful the waves will be.

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.

Use the table sidebar to switch units for height and speed.

Log your surf sessions to compare forecasts with real sessions and sharpen future predictions.

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:

Perfect
Good
Average
Bad or No Data

Session logs also feed the algorithm — the more you log, the smarter your forecasts get.

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