August 10, 2018 Surf Forecast

August 10, 2018, 5:00 AM HST (Updated August 10, 2018, 5:00 AM)

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Photo: James Grenz

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Swell Summary

Outlook through Friday August 17: A new long-period south swell is expected to begin filling in today, peak later Saturday and gradually lower Sunday. A mix of small long- period east swells and trade wind energy will keep the surf up along east facing shores through the weekend. The small north swell will gradually lower into the weekend. Although confidence is low, a small long-period northwest swell will be possible by Wednesday of next week.
Surf heights are forecast heights of the face, or front, of waves. The surf forecast is based on the significant wave height, the average height of the one third largest waves, at the locations of the largest breakers. Some waves may be more than twice as high as the significant wave height. Expect to encounter rip currents in or near any surf zone.


North East

am        pm  

Surf: Waist to chest high E wind swell.


Conditions: Sideshore texture/chop with SE winds 10-15mph.

North West

am        pm  

Surf: Knee to thigh high SW medium period swell.

Conditions: Semi choppy with NNE winds 5-10mph in the morning shifting SW for the afternoon.


am        pm  

Surf: Waist high medium period swell with occasional stomach sets. The swell will be coming from the SW in the morning and shift to the S during the day.

Conditions: Glassy in the morning with W winds less than 5mph. Semi glassy/semi bumpy conditions for the afternoon with the winds shifting SW 5-10mph.

South East

am        pm  

Surf: Waist to stomach high ESE wind swell with occasional chest high sets.

Conditions: Bumpy/semi bumpy with E winds 5-10mph in the morning shifting ENE 10-15mph in the afternoon.

Image: NOAA

Image: NOAA

Image: NOAA

Image: NOAA

Image: NOAA

Image: NOAA

**Click directly on the images below to make them larger. Charts include: Hawaii County projected winds, tides, swell direction & period and expected wave heights.**


    Data Courtesy of and



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