Big Island's west shore beaches remain calm, but a Brown Water Advisory for Hilo Bay and Hamakua coast urges caution.
Big Island beaches are calm today, with **small surf at Hapuna Beach Park (1.6 ft) and moderate surf at Kahaluʻu Beach Park (3.7 ft)**. No active surf advisories or closures are in effect, but a **Brown Water Advisory remains active for Hilo Bay and the Hamakua coast**-avoid swimming or snorkeling in these areas. Light winds (3.8-5.1 mph) and sunny skies (4-6% rain chance) make for comfortable beach conditions. Recent reports of dangerous surf in California serve as a reminder to stay cautious near breakwaters and always check conditions before entering the water.
Currently posted advisories from the Hawaii Department of Health affecting Big Island. Source: official DOH Clean Water Branch.
Posted Jun 2, 2026 · Hilo bay and along the Hamakua coast
Full advisory at health.hawaii.gov →Big Island · Best window: midday
high confidenceBig Island · Best window: morning
medium confidenceBig Island · Best window: midday
medium confidenceBig Island · Best window: afternoon
medium confidenceBig Island · Best window: afternoon
medium confidence**Hapuna or Spencer Beach Parks** are your safest bets-calm, lifeguarded waters. Avoid Kahaluʻu if you're not comfortable with moderate surf (3.7 ft). Pack a light jacket for breezy afternoons. **Avoid Hilo Bay and Hamakua coast** due to the Brown Water Advisory. Monitor local updates for any sudden changes in wave conditions.
**Hapuna, Carlsmith, and Spencer Beach Parks** are ideal-shallow, calm waters and lifeguards. Supervise kids closely, even in sheltered areas. Bring indoor backups (e.g., Imiloa Astronomy Center) if wind picks up. **Avoid Hilo Bay and Hamakua coast** due to the Brown Water Advisory.
**Kahaluʻu Beach Park** offers moderate surf (3.7 ft) and excellent snorkeling. Monitor conditions and respect wildlife. **Avoid Hilo Bay and Hamakua coast** due to the Brown Water Advisory. No surf advisories in effect, but recent high waves in California urge caution-stay vigilant near breakwaters.
West-facing beaches (Hapuna, Kahaluʻu) remain calm today, with small surf at Hapuna (1.6 ft) and moderate surf at Kahaluʻu (3.7 ft). Winds are light (3.8-5.1 mph), with Hapuna experiencing N winds and Kahaluʻu W winds. **No surf advisories or closures** are in effect, but **recent reports of high waves in Southern California** highlight the need for caution, especially near breakwaters. **Brown Water Advisory** remains active for Hilo Bay and the Hamakua coast-avoid swimming or snorkeling in these areas. Kahaluʻu's surf is manageable for experienced swimmers-lifeguards are on duty.
The Big Island's west shore is sunny and mild today, with **Hapuna (75.8°F, 4% rain chance)** and **Kahaluʻu (73.6°F, 6% rain chance)** both experiencing clear skies. Winds are light (3.8-5.1 mph), and conditions are comfortable for beach time. Monitor radar for potential breezes, though rain is unlikely to disrupt plans. Pack a light jacket for Kahaluʻu if winds pick up in the afternoon.
**Brown Water Advisory** remains active for Hilo Bay and the Hamakua coast-avoid swimming or snorkeling in these areas ([Hawaii DOH](https://eha-cloud.doh.hawaii.gov/cwb/#!/event/2074)). **High surf in Oahu** led to hundreds of rescues and thousands of warnings-stay cautious near breakwaters ([KHON2](https://www.khon2.com/local-news/honolulu-ocean-safety-high-surf/)). **Dangerous surf in California** resulted in two fatalities, serving as a reminder to respect ocean conditions ([KHON2](https://www.khon2.com/news/national/2-napping-california-beachgoers-swept-out-to-sea-1-killed-by-powerful-current/)).
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.