Ikei
Hourly
Confidence
Compare
โฑ๏ธs.
โšก๏ธkJ
Thursday 30
Friday 31
Saturday 01
Sunday 02
Monday 03
Tuesday 04
Tap a forecast cell to explore conditions on the map.
Timezone: Asia/Tokyo
Wind: GFS (20251030 12z)
Waves: GFS WAVE (20251030 12z)

Ikei surf guide

If you're thinking about hitting Ikei, you're in for a treat. Located on Ikei Island, it's a fab spot for surfers looking to chill and catch some waves without venturing too far. You can kick back at the Big Time Hotel and wait for the right conditions to roll in. The reefs right by the hotel are pretty consistent and can deliver fun headhigh waves, especially when the surf is in its sweet spot.

The surf at Ikei works best with a southeast swell direction but can also handle swells from the northeast and south. You're looking at swell sizes around 2 to 6 feet (0.6 to 1.8 meters), which usually breaks over live coral, giving you both lefts and rights. If you're planning to surf, try to time it during mid to high tide for the best results. The preferable wind direction is northwest, and this spot generally caters well to intermediate surfers who know their way around on a board. Just keep an eye on the conditions, since it can get crowded and at times a bit tricky with strong currents and the occasional sea urchin to dodge.

Ikei is known for being one of the more consistent breaks on the island, making it a popular choice among locals and visitors. If you find yourself there during a rare east typhoon swell, donโ€™t forget to check out Tengan Pier, as it can really light up but expect it to be pretty packed during those times. Overall, just relax and enjoy the vibes while you wait for that perfect wave.

Surf reports and surf forecasts nearby Ikei

Buma
Okinawa, Japan
Beach break
Thu 30
Fri 31
Sat 1
Sun 2
Mon 3
Tue 4
Wed 5
Thu 6
Fri 7
Sat 8
Sun 9
Mon 10
Ikei
Okinawa, Japan
Reef break
Thu 30
Fri 31
Sat 1
Sun 2
Mon 3
Tue 4
Wed 5
Thu 6
Fri 7
Sat 8
Sun 9
Mon 10
Maeda
Okinawa, Japan
Reef break
Thu 30
Fri 31
Sat 1
Sun 2
Mon 3
Tue 4
Wed 5
Thu 6
Fri 7
Sat 8
Sun 9
Mon 10
Mainside
Okinawa, Japan
Reef break
Thu 30
Fri 31
Sat 1
Sun 2
Mon 3
Tue 4
Wed 5
Thu 6
Fri 7
Sat 8
Sun 9
Mon 10
Turtles
Okinawa, Japan
Reef break
Thu 30
Fri 31
Sat 1
Sun 2
Mon 3
Tue 4
Wed 5
Thu 6
Fri 7
Sat 8
Sun 9
Mon 10
Sunabe Seawall
Okinawa, Japan
Reef break
Thu 30
Fri 31
Sat 1
Sun 2
Mon 3
Tue 4
Wed 5
Thu 6
Fri 7
Sat 8
Sun 9
Mon 10
Bowls
Okinawa, Japan
Reef break
Thu 30
Fri 31
Sat 1
Sun 2
Mon 3
Tue 4
Wed 5
Thu 6
Fri 7
Sat 8
Sun 9
Mon 10
Aja
Okinawa, Japan
Reef break
Thu 30
Fri 31
Sat 1
Sun 2
Mon 3
Tue 4
Wed 5
Thu 6
Fri 7
Sat 8
Sun 9
Mon 10
Kudaka
Okinawa, Japan
Reef break
Thu 30
Fri 31
Sat 1
Sun 2
Mon 3
Tue 4
Wed 5
Thu 6
Fri 7
Sat 8
Sun 9
Mon 10
Suicide Cliffs
Okinawa, Japan
Reef break
Thu 30
Fri 31
Sat 1
Sun 2
Mon 3
Tue 4
Wed 5
Thu 6
Fri 7
Sat 8
Sun 9
Mon 10

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

Session logs also feed the algorithm โ€” the more you log, the smarter your forecasts get.

With Surfnerd, no more "you should have been here yesterday"

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Confidence

Confidence tells you how much the weather models agree on the forecast.

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

We calculate the wind confidence by comparing wind speed, gust and direction from multiple models (like GFS, ECMWF, Arome, and Harmonie) and seeing how closely they match. For wave certainty we compare height, period and direction, also on multiple models. 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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