December 23, 2018 Surf Forecast
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Outlook through Sunday December 30: A moderate northwest swell will arrive Monday afternoon and peak Monday night. A larger northwest swell will build late Tuesday, peak Wednesday and may bring advisory level surf to north and west facing shores. An even larger northwest swell will be possible Friday, and may bring high end advisory to warning level surf to north and west facing shores.
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.
Surf: Stomach to shoulder high mix of NNW ground swell and E wind swell for the morning hours with occasional head sets. The surf builds a bit from the E during the afternoon.
Conditions: Sideshore texture/chop with SE winds 10-15mph in the morning increasing to 15-20mph in the afternoon.
Surf: Ankle to knee high WNW ground swell.
Conditions: Glassy in the early morning with SSW winds less than 5mph. Sideshore texture/chop conditions move in during the morning hours with the winds shifting SW 5-10mph.
Surf: Knee high NW ground swell with occasional thigh high sets.
Conditions: Semi glassy in the morning with SE winds less than 5mph. Bumpy/semi bumpy conditions for the afternoon with the winds shifting W 10-15mph.
Surf: Chest to shoulder high ESE wind swell in the morning builds to chest to head high for the afternoon.
Conditions: Sideshore texture/chop in the morning with NE winds 10-15mph. Light sideshore texture conditions for the afternoon with the winds shifting to the NNE.
**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