A Small Craft Advisory is posted for all Big Island coastal waters and the ʻAlenuihāhā channel through 6 p.m. Sunday for east winds up to 25 knots and seas up to 12 feet.
A High Surf Advisory is in effect for east facing shores through Sunday at 6 p.m. Surf heights of 5 to 8 foot faces are expected.
**Click directly on the images below to make them larger. Charts include: Big Island projected winds, tides, swell direction & period and expected wave heights.**
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Big Island Surf Forecast
Hilo side: Wave heights are expected head high today with the best breaks getting up to overhead from time to time on the sets.
Kona side: Wave heights knee/waist high are expected today. The best breaks could get up to chest/shoulder high on the sets.
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South: Breaks open to the south-southwest swell could get up to waist/chest high. The best spots open to the trade swell could reach shoulder/head high on the sets. Trade swell exposed areas could get up to head high or overhead.
A east-northeast trade swell is showing for windward coasts this week.
Our current south-southwest continues through Friday. A slightly bigger swell is expected to build through the day Friday and will show for the weekend with a reinforcement on tap late in the weekend into early next week.
A short-lived northwest swell is on tap for the weekend, building Saturday evening and holding through Sunday morning before beginning to fade.
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Keep in mind, surf heights are measured on the face of the wave from trough to crest. Heights vary from beach to beach, and at the same beach, from break to break.
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Big Island Surf Forecast
A east-northeast trade swell is showing for windward coasts this week.
