‘Opihi Regulations in Hawaii (2026)

genus Cellana

Recreational ‘opihi rules in Hawaii saltwater, as published by the Hawaii Department of Land and Natural Resources, Division of Aquatic Resources (DAR). Last checked November 7, 2026.

Size limit

1.25 in minimum

Can I keep it today? Check your harbor & date

Recreational ‘Opihi rules in Hawaii

Where: Statewide
Size limit: Minimum size 1-1/4 inches (shell diameter), 1/2 inch (meat diameter, if meat only)

Official source

Quick answers

What is the ‘opihi size limit in Hawaii?

Minimum size 1-1/4 inches (shell diameter), 1/2 inch (meat diameter, if meat only).

More clams, oysters & scallops in Hawaii

Clams, oysters, and other shellfish
He‘e (octopus, tako, "squid")
Sea cucumbers

All Hawaii saltwater fishing regulations →

Source: Hawaii Department of Land and Natural Resources, Division of Aquatic Resources (DAR). Most anglers need a Hawaii saltwater license or registry: get one here.