Medical cannabis legal

Cannabis Laws in Hawaii

Is weed legal in Hawaii? Medical only — cannabis is legal for registered medical patients, but not for general adult use.

Hawaii's medical cannabis program serves registered patients through licensed dispensaries. The patient's and caregiver's combined adequate supply is limited to 4 oz of usable cannabis. Registered patients may grow up to 10 plants, subject to registration requirements; caregiver cultivation has additional eligibility restrictions.

Federally, cannabis is still a controlled substance nationwide — but that status is in flux. See where rescheduling stands →

StatusMedical cannabis legal
Medical retailOpen
Possession and purchase limitsRegistered patient and caregiver combined: up to 4 oz usable cannabis
Home growingRegistered patients: up to 10 plants under registration rules; caregiver cultivation has additional eligibility restrictions

Regulated by Hawaii Department of Health, Office of Medical Cannabis Control and Regulation.

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Reviewed 2026-11-08. This is general information for adults 21+, not legal advice — cannabis laws change frequently. Confirm current rules with Hawaii Department of Health, Office of Medical Cannabis Control and Regulation before acting.