Heavy rain and flash flooding risks remain on the Big Island. Ocean conditions are unsafe—prioritize sheltered beach parks or indoor alternatives.
The Big Island stays under a flood watch today, with persistent rain and flash flooding risks making ocean activities hazardous. Runoff and murky water mean contaminated conditions—avoid open-water beaches. If you need outdoor time, stick to lifeguarded, sheltered spots like Onekahakaha or Spencer Beach Park. Windward shores and river mouths are especially dangerous. Have an indoor backup plan and monitor weather updates.
Big Island · Best window: afternoon
high confidenceBig Island · Best window: morning
high confidenceBig Island · Best window: midday
medium confidenceBig Island · Best window: morning
medium confidenceBig Island · Best window: midday
low confidenceSkip open-water beaches today. Stick to enclosed areas like Onekahakaha’s lagoon or Spencer Beach Park’s breakwall. Avoid murky water—it’s likely contaminated. Pack rain gear and have an indoor backup plan (e.g., Lyman Museum, Pacific Tsunami Museum).
Avoid open-water beaches. Onekahakaha’s lagoon or Spencer Beach Park’s sheltered areas are your safest bets. Supervise kids closely, even in shallow water. Bring rain covers for strollers and plan indoor activities (e.g., Imiloa Astronomy Center, Hilo Farmers Market under cover).
This is not a day for open-ocean activities. If you must enter the water, stick to lifeguarded beaches like Spencer or Onekahakaha, and avoid areas with visible runoff. Monitor weather updates—conditions can worsen rapidly. Postpone snorkeling or surfing until advisories lift.
Hazardous conditions persist due to heavy rain, runoff, and flash flooding risks. West-facing beaches (Hapuna, Spencer) may offer brief calm windows, but murky or brown water indicates contamination—avoid it. Kahaluʻu Beach Park’s moderate surf (3.8 ft) is unsafe for snorkeling due to poor visibility and runoff. Windward shores are choppy with strong currents, and river mouths are dangerous. The National Weather Service warns of rapid runoff from saturated soils, increasing flood risks. Check for active advisories before entering the water.
Heavy rain and thunderstorms continue through today, with 4–10 inches of rainfall expected on the Big Island. Flash flooding and landslides remain likely, especially in low-lying and urban areas. Winds are light (2–5 mph) but variable, with temperatures in the low 70s. Humidity is high, making rain feel heavier. The flood watch remains in effect statewide until Friday afternoon. Pack rain gear and monitor updates from the National Weather Service.
The Big Island remains under a flood watch as heavy rain continues. While Oʻahu and Kauaʻi dominate headlines for closures, the Big Island faces similar risks—avoid low-lying areas and murky water. Elsewhere in Hawaii, Waimea Bay on Oʻahu saw a rockfall landslide onto a roadway, prompting closures. No Big Island-specific closures are reported yet, but stay alert for updates. Sports fans: Hawaii’s water polo team won their Big West quarterfinals matchup, and BKFC held weigh-ins for a fight night in Hawaii.
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.