Storm runoff continues to affect Oahu’s beaches. Here’s where to find safe, calm waters—and what to avoid.
Oahu is still recovering from back-to-back Kona Low storms, and brown water advisories remain in effect for much of the island. The Hawaii Department of Health warns that contaminated runoff poses serious health risks, so swimming is strongly discouraged in discolored or affected areas. Ocean conditions are stabilizing, but caution is key—stick to reef-protected, lifeguarded beaches like Ala Moana Beach Park and Magic Island Lagoon, where waters are calmer and safer. North Shore spots like Waimea Bay and Sunset Beach are still off-limits for swimming due to lingering surf (4 ft) and runoff risks. Here’s where to go and what to watch for today.
Oahu · Best window: midday
high confidenceOahu · Best window: afternoon
high confidenceOahu · Best window: morning
medium confidenceOahu · Best window: midday
medium confidenceOahu · Best window: morning
low confidenceStick to enclosed, reef-protected spots like Magic Island Lagoon or Ala Moana’s inner lagoon. Avoid North Shore beaches—surf is still solid (4 ft) and unsafe for swimming. Wait 48–72 hours after heavy rain to let runoff clear. Always swim near a lifeguard and check the Clean Water Branch’s advisory map before heading out: [https://health.hawaii.gov/cwb/](https://health.hawaii.gov/cwb/).
Ala Moana and Magic Island Lagoon are your safest bets today. Both have lifeguards, calm waters, and space for kids to play. Rinse off after swimming to avoid skin irritation from runoff. Pack a picnic—these parks have tables, shade, and nearby restrooms. Avoid windward shores like Kailua unless water is clear—runoff risks linger.
North Shore surf is still solid (4 ft), but brown water advisories make it unsafe for swimming. If you’re set on getting in the water, south shore spots like Ala Moana or Sans Souci are safer, but avoid discolored water. Check the Ocean Safety Division’s beach conditions page for updates: [https://www.oceansafety.honolulu.gov](https://www.oceansafety.honolulu.gov). Rinse off immediately after swimming—bacteria levels may be elevated.
Oahu’s ocean is stabilizing, but brown water advisories remain in effect for much of the island due to storm runoff. South shore beaches like Ala Moana and Waikiki are seeing moderate waves (3–4 ft) with light winds—ideal for swimming if you stay inside the reef and avoid discolored water. Windward spots like Kailua are calmer (3–4 ft waves), but runoff risks linger, especially near stream mouths. North Shore beaches (Waimea Bay, Sunset Beach) still have solid surf (4 ft), making them unsafe for swimming. Lifeguards are on duty at most major beaches, but always check conditions before entering. Avoid all discolored water—bacteria levels may be elevated. The National Weather Service has lifted the flood watch, but isolated showers could still affect water clarity.
Oahu is drying out, but isolated showers could still pop up, especially in windward areas. Temperatures are in the low 70s, with light winds (5–10 mph) from the east. Humidity remains high, making it feel muggy. Morning fog is possible near windward shores, but skies should clear by midday. The flood watch has expired, but the ground is still saturated—avoid hiking trails or low-lying areas prone to flooding. If you’re heading to the beach, midday is best for sun and drier conditions. Pack a light rain jacket just in case.
Oahu is shifting from storm response to recovery, but challenges remain. Dozens of student-athletes celebrated National Signing Day in Waikiki, marking a bright spot after days of rain. Meanwhile, brown water advisories are still in effect—stick to lifeguarded, reef-protected spots. No new beach closures have been issued, but runoff risks linger. Kamehameha Highway near Waikane remains closed due to flooding. For updates, check the Ocean Safety Division’s website: [https://www.oceansafety.honolulu.gov](https://www.oceansafety.honolulu.gov).
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.