August 20, 2018 Surf Forecast
Photo: James Grenz
Swell Summary
Outlook through Monday August 27: A small, north-northwest swell is expected to gradually build today, peak late Tuesday, then diminish Wednesday. Choppy surf along east facing shores will gradually increase this week as trade winds strengthen. Most importantly, Hurricane Lane is forecast to pass south and southwest of the islands this week, and will likely deliver increasingly rough surf to south facing shores as the week progresses. Be sure to monitor forecast updates on Lane as it could bring significant impacts later this 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: 1-3′ overhead high ESE ground swell with occasional well overhead high sets.
Conditions: Semi choppy with ESE winds 5-10mph in the morning shifting E for the afternoon.
North West
am 
pm 
Surf: Small scale (ankle to knee high) surf.
Conditions: Clean in the early morning with SSE winds less than 5mph. Sideshore texture/chop conditions move in during the morning hours with the winds shifting SW 5-10mph.
West
am 
pm
Surf: Small scale (ankle to knee high) surf.
Conditions: Light sideshore texture in the morning with SE winds 5-10mph. Bumpy/semi bumpy conditions for the afternoon with the winds shifting to the WNW.
South East
am 
pm
Surf: Well overhead high ESE ground swell.
Conditions: Light sideshore texture in the morning with NNE winds 10-15mph. This becomes Sideshore texture/chop for 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 NOAA.gov and SwellInfo.com
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