Way Jambu
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Hourly
Timezone: Asia/Jakarta
โฑ๏ธs.
โšก๏ธkJ
Tuesday 14
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Tap a forecast cell to explore conditions on the map.

Way Jambu surf guide

Way Jambu, also known as Pear River, is located along the southern coast and is known for its heavy, hollow waves. This spot attracts surfers looking for a challenge, but it's not for everyone. With sharp reef lurking just below the surface, you'll want to be on your game here. This location is famous among experts who know what theyโ€™re doing, as several surfers might think twice about tackling the powerful breaks. The vibe is laid back, but the waves can be intense.

The surf here is unique, breaking predominantly to the left over the Dead Coral reef. It responds best to south and west swells and can handle sizes starting at 1 meter (3 ft). Whether itโ€™s low, mid, or high tide, you'll often find wide-open tubes forming, but bear in mind the conditions can change quite a bit with the swell direction and tide. Though the place is dubbed the Sumatran Pipeline, it remains sectiony and can vary, so be prepared for different wave shapes when you hit the water. The preferred wind direction is Southeast, which can help lead to better rides.

If you're keen to explore further, the coastal road around Way Jambu offers access to other surf spots that donโ€™t get as much attention. Many surfers tend to overlook these breaks, so you might find some hidden gems if youโ€™re up for an adventure. Just remember, this spot is mostly for experts, so make sure youโ€™re ready before paddling out!

Surf reports and surf forecasts nearby Way Jambu

Pulau Pisang
Unknown Region, Unknown Country
Reef break
Tue 14
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Sat 25
Krui Right
Unknown Region, Unknown Country
Reef break
Tue 14
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Fri 17
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Mon 20
Tue 21
Wed 22
Thu 23
Fri 24
Sat 25
Krui Left
Unknown Region, Unknown Country
Reef break
Tue 14
Wed 15
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Fri 17
Sat 18
Sun 19
Mon 20
Tue 21
Wed 22
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Sat 25
Ujung Walur
Unknown Region, Unknown Country
Reef break
Tue 14
Wed 15
Thu 16
Fri 17
Sat 18
Sun 19
Mon 20
Tue 21
Wed 22
Thu 23
Fri 24
Sat 25
The Peak - Krui
Unknown Region, Unknown Country
Reef break
Tue 14
Wed 15
Thu 16
Fri 17
Sat 18
Sun 19
Mon 20
Tue 21
Wed 22
Thu 23
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Sat 25
Mandiri
Unknown Region, Unknown Country
Beach break
Tue 14
Wed 15
Thu 16
Fri 17
Sat 18
Sun 19
Mon 20
Tue 21
Wed 22
Thu 23
Fri 24
Sat 25
Ujung Bocor
Unknown Region, Unknown Country
Reef break
Tue 14
Wed 15
Thu 16
Fri 17
Sat 18
Sun 19
Mon 20
Tue 21
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Sat 25
Way Jambu
Unknown Region, Unknown Country
Reef break
Tue 14
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Mon 20
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Bali Village
Unknown Region, Unknown Country
Reef break
Tue 14
Wed 15
Thu 16
Fri 17
Sat 18
Sun 19
Mon 20
Tue 21
Wed 22
Thu 23
Fri 24
Sat 25
Ujung Siging
Unknown Region, Unknown Country
Reef break
Tue 14
Wed 15
Thu 16
Fri 17
Sat 18
Sun 19
Mon 20
Tue 21
Wed 22
Thu 23
Fri 24
Sat 25
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Readme

Welcome! If youโ€™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:

๐Ÿ”ฎ 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.

๐Ÿ’จ Wind section

The first row on the table (with the ๐Ÿ’จ icon) shows wind speed, direction and gust. The more the wind speed the more aggressive the color (from blue, green, orange to red).

๐ŸŒŠ 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.

๐ŸŒ’ 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 โ€” handy when arrows overlap.

Forecast Cheat Sheet

Short on time? Focus on wave energy. Itโ€™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. Hereโ€™s the scale:

Perfect
Good
Average
Bad or No Data

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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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