Surf, weather, safety alerts, and the best beaches for 2026-05-04.
The Big Island's west shore continues to deliver calm ocean conditions today, but the brown water advisory for Hilo Bay and the Hamakua Coast remains in effect-avoid swimming or snorkeling there. Hapuna Beach Park and Kahaluʻu Beach Park are the top picks for safe, lifeguarded swimming with small to moderate surf (1.4-2.7 ft) and light winds. Hapuna has patchy rain nearby (0% chance reported, but conditions may shift), while Kahaluʻu enjoys sunnier skies. Visit midday for the best weather window. Check the Hawaii Department of Health's Clean Water Branch for real-time updates before entering any beach.
Big Island · Best window: midday
high confidenceBig Island · Best window: morning
medium confidenceBig Island · Best window: morning
medium confidenceBig Island · Best window: afternoon
medium confidenceBig Island · Best window: midday
medium confidenceWest-facing beaches (Hapuna, Kahaluʻu) offer the calmest conditions today, with small to moderate surf (1.4-2.7 ft) and relatively clear waters. A brown water advisory remains active for Hilo Bay and the Hamakua Coast-avoid swimming or snorkeling there. Light winds (2.2-4.5 mph) prevail. No active surf advisories, but avoid murky or discolored water, especially near river mouths or after rain.
The Big Island's west shore is mostly sunny today, with temperatures around 71-72°F. Hapuna Beach Park reports sunny skies with light NNE winds (4.5 mph). Kahaluʻu Beach Park has patchy rain nearby (85% chance) with light W winds (2.2 mph). Windward areas may experience slightly higher winds. Monitor updates for any changes, especially if rain develops.
A 64-year-old man died in a possible drowning incident in Kona waters, according to Hawaii Island police. The investigation is ongoing. The brown water advisory for Hilo Bay and the Hamakua Coast remains active-avoid swimming or snorkeling there. No other major beach closures or advisories beyond this area. For the latest on beach advisories, check the Hawaii Department of Health's Clean Water Branch.
Disclaimer: This update is generated using AI and automated data sources including weather APIs, surf forecasts, and news feeds. It is not professional safety advice. Ocean conditions change rapidly and may differ from what is described here. Always check with on-site lifeguards, observe posted warning signs, and consult official sources such as the National Weather Service before entering the water. HawaiiYeah assumes no liability for injury, loss, or damage arising from use of this information. See our full disclaimer.