UPDATE: High surf advisory extended for north and west shorelines of Kaua‘i, Ni‘ihau

Update at 6:04 a.m. Jan. 11, 2026: The high surf advisory in effect for north- and west-facing shores of Kaua‘i and Ni‘ihau was extended until 6 a.m. Monday (Jan. 12) as a large, long-period northwest swell moves through the Hawai‘i region and another extra-large northwest swell approaches the state.

National Weather Service forecasters in Honolulu report northern shorelines can expect large breaking waves building to 15 to 22 feet, while western coastlines will see waves building to 10 to 18 feet.

Strong breaking waves and strong currents will continue to make swimming and other ocean activities in the advisory areas dangerous.

Another extra-large northwest swell moving into the region is forecast to swiftly build surf heights along the same shorelines above warning levels Monday, likely resulting in the need for a high surf warning.

The public is reminded: When in doubt, don’t go out.

Get the latest weather information and forecast — including any advisories, watches or warnings — at the National Weather Service Honolulu forecast office website.

Original story published at 3:50 a.m. Jan. 10, 2026: National Weather Service forecasters in Honolulu have issued a high surf advisory until 6 p.m. Sunday (Jan. 11) for north- and west-facing shores of Kaua‘i and Ni‘ihau.

A large, long-period northwest swell will swiftly build into the islands today (Jan. 10), producing surf heights above advisory levels through Sunday.

Large breaking waves of 15 to 20 feet are forecast for north shorelines, while west shorelines are expected to see large breaking waves of 10 to 15 feet.

Strong breaking waves and strong currents along the shores in the advisory areas will make swimming dangerous.

The public is advised to heed all advice from ocean safety officials — when in doubt, don’t go out.

Get the latest weather information and forecast — including any advisories, watches or warnings — at the National Weather Service Honolulu forecast office website.