Box Jellyfish Calendar Hawaii 2025. A listing of when we are most likely to see box jellyfish in hawaii (which usually means oahu's south shore beaches). The monthly box jellyfish influx is set to begin tuesday on oahu’s.

In any event, the calendar below outlines the appearance of box, moon, and lagoon jellyfish types across the hawaiian islands. Honolulu (khon2) — if your weekend plans included time at the beach then watch out for box jellyfish spotted around certain areas on oahu.