April 27, 2018 Surf Forecast

April 27, 2018, 1:00 AM HST
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Photo: James Grenz

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Swell Summary

Outlook through Thursday May 03: A moderate, long-period north-northwest swell will slowly build, peaking Friday, with surf heights remaining below advisory levels. A larger north-northwest swell is expected this weekend and early next week, with the potential for advisory-level surf along north and west facing shores. This swell will gradually diminish through the middle of next week. Choppy surf along east facing shores will diminish through Friday as trade winds weaken. Small southerly swells will persist for most of the week, with a peak expected Sunday.
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 mix of NNW ground swell and ESE wind swell

Conditions: Sideshore/choppy with SSE winds 15-20mph in the morning shifting SE for the afternoon.

North West


am        pm  

Surf: Ankle to knee high SW ground swell.

Conditions: Light sideshore texture in the morning with NE winds 5-10mph. Bumpy/semi bumpy conditions for the afternoon with the winds shifting to the NW.


am        pm  

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

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

South East

am        pm  

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

Conditions: Semi glassy/semi bumpy in the morning with ESE winds less than 5mph. Bumpy/semi bumpy conditions for the afternoon with the winds shifting SE 5-10mph.

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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