August 19, 2018 Surf Forecast

August 19, 2018, 5:00 AM HST · Updated August 19, 5:00 AM

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Photo: Asa Ellison

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Swell Summary

Outlook through Sunday August 26: A small, north-northwest swell is expected to arrive Monday and continue through Tuesday. A larger north swell is expected to arrive late Tuesday, peak Tuesday night and early Wednesday, then slowly fade through Thursday. Choppy surf along east facing shores will be on a gradual increase this week as trade winds strengthen. We will continue to monitor the track and intensity of Hurricane Lane as it moves closer to the islands, as this could result in a period of elevated surf along south facing shores during the middle 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.



am        pm  

Surf: Ankle to knee high NE short period wind swell for the morning going more ENE and building into the knee to thigh range in the afternoon.

Conditions: Semi clean/textured in the morning with E winds 15-20mph. Sideshore/choppy conditions for the afternoon as the winds increase to 20-25mph.


am        pm  

Surf: Knee high S medium period swell with occasional thigh high sets.

Conditions: Clean in the morning with NNE winds 5-10mph. Semi glassy/semi bumpy conditions for the afternoon with the winds shifting WNW less than 5mph.


am        pm  

Surf: Minimal (ankle high or less) surf.

Conditions: Clean with E winds 10-15mph in the morning increasing to 15-20mph 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: Maui County projected winds, tides, swell direction & period and expected wave heights.**


    Data Courtesy of and



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