Current conditions at Flat Island

Active Alerts

High Surf Advisory

Saturday, January 20, 2018 - 3:49am to Sunday, January 21, 2018 - 6:00pm
Issued Saturday, January 20, 2018 - 3:49am

Beach & Nearshore

No conditions available

Shoreline conditions do not apply to this location.
Primarily for beachgoers and surfers

Offshore

Extreme Hazard

Offshore conditions are extremely dangerous. Kayakers and users of other unpowered craft are advised to stay out of the ocean.
Primarily for boaters and kayakers
Learn more about these rating signs and alerts. Ratings updated Saturday, January 20, 2018 - 8:45am

Weather

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75°F
Overcast
Winds from the East at 8.1 gusting to 18.4 MPH (7 gusting to 16 KT)

Surf

SURF ALONG EAST FACING SHORES WILL BE 7 TO 10 FEET TODAY, DROPPING TO 5 TO 8 FEET SUNDAY.

Recommended Activities

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Beach ID: 20

Flat Island is also known as

Popoiʻa Island

Not lifeguarded.

Getting There

Flat Island is located on the Oahu Windward (East) Shore.

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Background

Popoiʻa Island, popularly known as Flat Island, is one quarter of a mile seaward of the boat ramp. Popoiʻa means rotten fish, and may refer to offerings that were left at a former fishing shrine in the middle of the island. The tsunami of 1946 destroyed the remnants of the shrine. Landing is permitted on the island's small sand beach, although Popoiʻa is part of the Hawaiʻi State Seabird Sanctuary. A popular surf site known as Flat Island breaks on a shallow reef on the island's south side.

This description is from John R. K. Clark’s book - Beaches of Oahu (Revised Edition) published and available for purchase from the University of Hawaiʻi Press. We thank John R. K. Clark for providing his beach descriptions for use on this site.
21.399299621582, -157.720993041992