May 15, 2018 Surf ForecastMay 15, 2018, 1:00 AM HST (Updated May 15, 2018, 1:00 AM)
Outlook through Monday May 21: A small north-northwest swell will diminish through Wednesday. Small north to northwest swells are forecast Thursday through the weekend. Small south swells will increase surf along south facing shores through the weekend.
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: Waist to stomach high E wind swell with occasional chest high sets.
Conditions: Light sideshore texture in the morning with SSE winds 10-15mph. Sideshore texture/chop conditions for the afternoon with the winds shifting to the SE.
Surf: Ankle to knee high SSW ground swell.
Conditions: Semi glassy/semi bumpy in the morning with NNE winds less than 5mph. Semi choppy conditions for the afternoon with the winds shifting WSW 10-15mph.
Surf: Waist to stomach high SSW long period swell in the morning with occasional chest high sets. This drops into the knee to waist range for the afternoon.
Conditions: Semi glassy in the morning with NNW winds less than 5mph. Semi glassy/semi bumpy conditions for the afternoon with the winds shifting SW 5-10mph.
Surf: Waist to stomach high long period swell with occasional chest sets. The swell will be coming from the SSW in the morning and shift to the E during the day.
Conditions: Semi glassy in the morning with NNE winds 5-10mph. Bumpy/semi bumpy conditions for the afternoon with the winds shifting to the E.
**Click directly on the images below to make them larger. Charts include: Hawaii County projected winds, tides, swell direction & period and expected wave heights.**