Oahu's south and west shores — including Waikiki and the North Shore's winter waves — sit in warm Pacific water where tiger sharks patrol the reef edges and channels year-round, especially after heavy rain flushes runoff and baitfish into the swim zones. SharkWatch tracks confirmed shark sightings and incidents across the island and sends you a push alert immediately when a verified event is reported at or near your saved Oahu beach.
Get alerts for Oahu, HI — $19 lifetimeOne-time payment · Works on iPhone & Android · Refund anytime before launch
Incidents our system tracked within 200km in the last 90 days. Alerts only fire for confirmed events.
No shark incidents tracked within 200km of Oahu, HI in the last 90 days — that's exactly when a surprise sighting matters most.
Lulu's Law was signed June 26, 2026 — Amber-Alert-style shark warnings are coming. But the FCC has 180 days to build them (~late December), and they only fire after an attack, where it happened. SharkWatch alerts you to confirmed bites and sightings near Oahu, HI all summer.
Become a SharkWatch member ($19 once, lifetime), install the web app to your phone's home screen, and save Oahu, HI as your beach. When a shark bite or sighting is confirmed within 200km, your phone gets a push alert.
SharkWatch confirms incidents from multiple independent news domains or an official report (lifeguards, police, beach authority) before alerting. Lulu's Law was signed June 26, 2026, but the FCC has 180 days to build the federal system — alerts aren't expected until ~late December 2026, and they only fire after an attack.
No. You save beach regions; we match confirmed incidents to those regions. The app never follows your phone around.