Surf, weather, safety alerts, and the best beaches for 2026-05-15.
Oahu is under a heavy rain threat today as a tropical disturbance moves through, bringing scattered thunderstorms and high rain chances (85-100%). The south shore (Ala Moana, Magic Island) offers the most sheltered, reef-protected waters for swimming, but expect murky conditions near storm drains. Windward shores (Kailua, Waimanalo) are windy (9-13 mph) and choppy (5 ft surf) — better for windsurfing than swimming. North Shore beaches (Sunset Beach, Waimea Bay) have solid surf (5-6 ft), but brown water advisories remain active-do not enter the water. Pack a rain jacket, waterproof gear, and reef-safe sunscreen. Thunderstorms may disrupt outdoor plans-monitor [NWS Honolulu](https://www.weather.gov/hfo/) for updates.
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 confidenceOahu's south shore (Ala Moana, Magic Island) offers the calmest, most sheltered waters today with moderate surf (3.5 ft) — ideal for swimming and snorkeling if water is clear. The windward shores (Kailua, Waimanalo) are windy (9-13 mph from E) and choppy (5 ft surf), making them better for windsurfing than swimming. North Shore beaches (Sunset Beach, Waimea Bay) have solid surf (5-6 ft), but brown water advisories remain active-do not enter the water. Thunderstorms may develop suddenly — avoid the ocean if lightning is present. Lifeguards are on duty at major beaches, but always check conditions before entering. Murky water near storm drains may indicate runoff-avoid these areas.
Oahu is under a heavy rain threat today, with scattered thunderstorms and high rain chances (85-100%). Temperatures are in the mid-70s°F, with winds from the E/ENE at 6-13 mph. Windward shores (Kailua, Waimanalo) will see the strongest winds and choppiest waters, while the south shore (Ala Moana, Waikiki) offers the most shelter from wind and rain. Thunderstorms may disrupt outdoor plans — monitor NWS Honolulu for real-time updates. Midday is the best time for beach visits, with the least rain and most stable conditions. Pack a rain jacket and waterproof gear — conditions may change quickly.
Heavy Rain and Thunderstorms Expected: A tropical disturbance will bring heavy rain and scattered thunderstorms to Oahu starting today. This is not a kona low but an upper-level low, which enhances shower activity. Winds will not be extreme, but thunderstorms may disrupt outdoor plans. Monitor NWS Honolulu for updates. Read more. Honolulu Police Chief Finalists Announced: The three finalists for Honolulu's next police chief discussed their plans for the department, emphasizing morale building, recruitment, transparency, and community partnerships. The new chief will also address homelessness and technology upgrades. Read more.
Active advisories on Oahu's North and West Shores: The Hawaii Department of Health has issued brown water advisories for two zones: - Haleiwa Beach Park to Mokuleia 260A Beach Access (North Shore) - Makua Beach (West Side) Do not enter the water in these areas-runoff from recent storms may contain harmful bacteria, chemicals, and debris. Advisories remain in effect until water quality improves. Check the Clean Water Branch website for updates.
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.