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Alerts

A Small Craft Advisory is posted for all Big Island coastal waters and the ʻAlenuihāhā channel through 6 p.m. Monday for east winds up to 25 knots and seas up to 13 feet.

A High Surf Advisory is in effect for east facing shores through Monday at 6 p.m. Surf heights of 5 to 8 foot faces are expected.

Check our breaking news section for any urgent weather alerts.

**Click directly on the images below to make them larger. Charts include: Big Island projected winds, tides, swell direction & period and expected wave heights.**

Big Island Surf Forecast

Hilo side: Wave heights are expected head high today with the best breaks getting up to a few feet overhead from time to time on the sets. New north-northwest builds bringing waist/head high waves by sunset.

Kona side: Wave heights waist high are expected today. The best breaks could get up to shoulder/head high on the sets.

South: Breaks open to the south-southwest swell could get up to chest/shoulder/head high. The best spots could get up to a bit overhead on the sets.

A east-northeast trade swell is showing for windward coasts through the weekend and likely well into next week.

Our current south-southwest trends down as a slightly bigger swell builds through the day Saturday 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 for the weekend, building Saturday evening and holding through Sunday morning before beginning to fade.

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.  

**Click here for your detailed Big Island weather report.**

Image: NOAA

Image: NOAA / NWS

Image: NOAA / NWS

Image: NOAA / NWS

Image: NOAA / NWS

Image: NOAA / NWS

Image: NOAA / NWS