High Surf Advisory Extended for East-Facing Shores of Big Island

Rough ocean conditions and dangerous waves to continue through the week

Published on Feb. 28, 2026

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The National Weather Service has extended a high surf advisory for the east-facing shores of the Big Island of Hawaii through Thursday, February 20th. Strong trade winds are causing large, dangerous waves of 7 to 12 feet along the coastline, making swimming and other ocean activities hazardous. The advisory covers the North Kohala, Hamakua, North and South Hilo, Puna, and Ka'u districts.

Why it matters

The high surf poses a significant risk to beachgoers, swimmers, and surfers along the affected coastlines. Strong currents and breaking waves can be life-threatening, and officials are urging the public to exercise extreme caution and follow the guidance of ocean safety personnel when entering the water.

The details

According to the National Weather Service, the high surf is being driven by strengthening trade winds that are expected to continue through the middle of next week. Surf heights are forecast to range from 7 to 12 feet, with the larger waves arriving late Sunday into Sunday night. The dangerous conditions are expected to persist through Thursday, prompting officials to extend the high surf advisory.

  • The high surf advisory is in effect until 6 p.m. on Thursday, February 20, 2026.
  • Surf heights of 7 to 10 feet are forecast for Monday, February 17th, rising to 8 to 12 feet by late Sunday, February 16th into Sunday night.

The players

National Weather Service

The federal agency responsible for weather forecasting and issuing weather-related advisories, watches, and warnings.

Hawaii County Civil Defense

The local emergency management agency for Hawaii County, which is responsible for coordinating disaster response and public safety efforts.

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What they’re saying

“Beach-goers, swimmers and surfers should heed all advice given by ocean safety officials and exercise caution when entering the water.”

— Hawaii County Civil Defense (bigislandnow.com)

“When in doubt, don't go out.”

— National Weather Service (bigislandnow.com)

What’s next

The high surf advisory is expected to remain in effect through Thursday, February 20th, and could be extended further if the strong trade winds persist.

The takeaway

This high surf event highlights the importance of heeding weather advisories and safety warnings, especially for those planning to engage in water-based activities along Hawaii's coastlines. Ignoring these warnings can put lives at risk, and it's crucial for the public to follow the guidance of local officials and emergency management agencies.