August 18, 2018 Surf Forecast
Outlook through Saturday August 25: No significant swells are expected through the weekend, so expect surf to remain small on all shores. A small, north-northwest swell is expected to arrive on Monday and continue through Tuesday. A larger north swell is expected to arrive late Tuesday, peak Tuesday night and early Wednesday, then slowly fade through Thursday. We will continue to monitor the track and intensity of Hurricane Lane as it moves closer to the islands, as this could result in a period of elevated surf along south facing shores during 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.
Surf: Waist high ESE medium period swell for the morning with occasional stomach sets. This rotates more E and builds in the afternoon with sets up to shoulder high.
Conditions: Semi glassy/semi bumpy in the morning with ESE winds 5-10mph. Choppy/sideshore current conditions for the afternoon with the winds shifting SE 15-20mph.
Surf: Small scale (ankle to knee high) surf.
Conditions: Semi glassy in the morning with SW winds less than 5mph. Choppy/sideshore current conditions for the afternoon as the winds increase to 15-20mph.
Surf: Knee high ground swell with occasional thigh sets. The swell will be coming from the S in the morning and shift to the SW during the day.
Conditions: Clean in the morning with ENE winds less than 5mph. Bumpy/semi bumpy conditions for the afternoon with the winds shifting SSW 5-10mph.
Surf: Waist to chest high S ground swell for the morning going more E during the day.
Conditions: Clean in the morning with NNW winds 5-10mph. Semi glassy/semi bumpy conditions for the afternoon with the winds shifting E less than 5mph.
**Click directly on the images below to make them larger. Charts include: Hawaii County projected winds, tides, swell direction & period and expected wave heights.**