August 04, 2018 Surf Forecast

August 4, 2018, 5:00 AM HST
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Photo: James Grenz

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Swell Summary

Outlook through Saturday August 11: Small south swells will maintain background surf along south facing shores through the weekend. A slightly larger long-period south swell arriving Monday is expected to increase surf to near the summertime average along south facing shores early next week. Strong trades will produce elevated rough surf along east facing shores today. Surf along these shores is expected to lower from Sunday into early next week as the trades weaken slightly. Note, that depending on the future track and intensity of Hurricane Hector currently in the East Pacific, surf may increase across some shorelines starting around 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.

North East


am        pm  


Surf: Stomach to shoulder high ENE wind swell for the morning drops into the waist to chest high zone during the afternoon.

Conditions: Semi choppy with ESE winds 5-10mph.

North West


am        pm  

Surf: Ankle to knee high ground swell.

Conditions: Light sideshore texture in the morning with SW winds 5-10mph. Semi choppy conditions for the afternoon with the winds shifting to the WSW.


am        pm  

Surf: Knee high S ground swell with occasional thigh high sets.

Conditions: Glassy in the early morning with N winds less than 5mph. Bumpy/semi bumpy conditions move in during the morning hours with the winds shifting WNW 5-10mph.

South East

am        pm  

Surf: Waist to chest high E wind swell.

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

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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