Kawaihae
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Hourly Forecast
Timezone: Pacific/Honolulu
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Tuesday 16
Wednesday 17
Thursday 18
Friday 19
Saturday 20
Sunday 21
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Kawaihae surf guide

Kawaihae is a surf spot located in the historical town of Kawaihae, tucked under the northwest corner of the Big Island. It’s accessible and can be a fun place to catch some waves during both the winter and summer months. This spot is known for its right and left breaks, where the WNW to N swells travel along the northwest coast and hit the breakwater, creating decent right-handers. However, the left tends to empty into the boat channel, making it not as appealing as the right.

The surf here can handle swell sizes from about 4ft to 7ft (1.2m to 2.1m). The best swell directions are from the SouthWest, WestSouthWest, West, and WestNorthWest. The bottom is made up of lava, rock, and coral, so be aware of that when you’re out there. The winds are typically calm or offshore from an easterly direction, with mornings usually offering the best conditions before an afternoon seabreeze kicks in. The tide is best at low to mid or mid to high, while this spot is suitable for surfers of various skill levels, including beginners, intermediate, and expert surfers.

Getting to Kawaihae is easy with parking available at the Kawaihae Cultural Surf Park right by the breakwater. The crowd factor can vary based on the quality of the surf, so it’s hit or miss when it comes to how busy the spot gets. The local vibe is generally friendly, so just be cool and respect the lineup. This spot is accessible year-round, with winter bringing N to WNW swells and summer offering SSW-SW swells. Whether you prefer shortboards, funboards, longboards, fish, bodyboards, or even SUPs, Kawaihae has something for you.

Surf reports and surf forecasts nearby Kawaihae

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Beach break
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Sun 21
Mon 22
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Fri 26
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Kohala Lighthouse
Hawaii, United States
Reef break
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Kawaihae Breakwater
Hawaii, United States
Reef break
Tue 16
Wed 17
Thu 18
Fri 19
Sat 20
Sun 21
Mon 22
Tue 23
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Fri 26
Sat 27
Kawaihae
Hawaii, United States
Jetty break, Reef break
Tue 16
Wed 17
Thu 18
Fri 19
Sat 20
Sun 21
Mon 22
Tue 23
Wed 24
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Sat 27
Hapuna Point
Hawaii, United States
Reef break
Tue 16
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Fri 19
Sat 20
Sun 21
Mon 22
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Anaehoomalu Bay
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Point break
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Fri 19
Sat 20
Sun 21
Mon 22
Tue 23
Wed 24
Thu 25
Fri 26
Sat 27
Keawaiki Bay
Hawaii, United States
Reef break
Tue 16
Wed 17
Thu 18
Fri 19
Sat 20
Sun 21
Mon 22
Tue 23
Wed 24
Thu 25
Fri 26
Sat 27
Kiholo Bay
Hawaii, United States
Reef break
Tue 16
Wed 17
Thu 18
Fri 19
Sat 20
Sun 21
Mon 22
Tue 23
Wed 24
Thu 25
Fri 26
Sat 27
Mahaiula Bay
Hawaii, United States
Reef break
Tue 16
Wed 17
Thu 18
Fri 19
Sat 20
Sun 21
Mon 22
Tue 23
Wed 24
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Pinetrees
Hawaii, United States
Reef break
Tue 16
Wed 17
Thu 18
Fri 19
Sat 20
Sun 21
Mon 22
Tue 23
Wed 24
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Fri 26
Sat 27
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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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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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