West shore beaches stay calm (1-2 ft surf) and lifeguarded. Brown water advisory active for Hilo Bay/Hamakua Coast-avoid swimming there.
The Big Island's west shore remains the safest choice for families today, with small surf (1-2 ft) and lifeguards at Hapuna and Kahaluʻu Beach Parks. A **brown water advisory** is still in effect for Hilo Bay and the Hamakua Coast-avoid swimming in these areas. Pack sun protection, check advisories before heading out, and respect wildlife (especially monk seals).
Currently posted advisories from the Hawaii Department of Health affecting Big Island. Source: official DOH Clean Water Branch.
Posted Apr 30, 2026 · Hilo bay and along the Hamakua Coast
Full advisory at health.hawaii.gov →Posted Apr 2, 2026 · Ninole area
Full advisory at health.hawaii.gov →Big Island · Best window: midday
high confidenceBig Island · Best window: morning
medium confidenceBig Island · Best window: morning
high confidenceBig Island · Best window: afternoon
medium confidenceBig Island · Best window: morning
low confidenceStick to west-facing beaches like Hapuna or Spencer-calm, lifeguarded waters are safest. Avoid Hilo Bay and Hamakua Coast due to the brown water advisory. Pack sun protection and check DOH updates before entering.
Hapuna and Spencer Beach Parks are your best bets-shallow, calm waters and lifeguards. Supervise kids closely, even in sheltered areas. Bring snacks and plan indoor backups (e.g., Imiloa Astronomy Center) if rain moves in.
Carlsmith and Kahaluʻu offer decent snorkeling, but avoid Hilo Bay and Hamakua Coast due to the brown water advisory. Monitor surf reports for Kahaluʻu if conditions improve. Windward shores may have stronger currents-stick to west-facing beaches.
West-facing beaches (Hapuna, Spencer) offer the calmest conditions today, with small surf (1-2 ft) and clear waters. A **brown water advisory** remains active for Hilo Bay and the Hamakua Coast-avoid swimming in these areas. Light winds (5-6 mph) prevail, with Hapuna experiencing slightly breezier conditions (NNE winds). No active surf advisories.
The Big Island's west shore has patchy rain nearby today, with temperatures around 70-71°F. Hapuna Beach Park reports a 100% chance of patchy rain and light NNE winds (4.9 mph). Kahaluʻu Beach Park has a 76% chance of patchy rain and light NW winds (5.8 mph).
A **brown water advisory** remains in effect for Hilo Bay and the Hamakua Coast-avoid swimming in these areas. A Washington man was arrested for throwing a rock at an endangered monk seal on Maui-fines up to $70,000 and potential prison time. Wai Kai at Hoakalei Resort on Oʻahu is expanding summer programs for keiki (ages 0-13), including surfing, paddling, and cultural learning.
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.