Surf, weather, safety alerts, and the best beaches for 2026-06-21.
Oahu's windward shores (Kailua, Waimanalo) are windier today (10.7 mph NE), but the waters remain calm and safe for swimming. Kailua Beach Park and Ala Moana Lagoon are the best bets for families and weak swimmers, with lifeguards on duty and minimal surf (4 ft). The North Shore (Sunset Beach, Waimea Bay) has moderate surf (3.1-3.7 ft) and choppy conditions, making it less ideal for swimming but decent for experienced surfers. Morning is the best time for beach visits, with the least wind and most stable conditions. No active advisories, but south swells (similar to those impacting the Big Island last week) may bring minor chop to south shores β monitor conditions if heading to Waikiki or Ala Moana. Avoid west shores if you're looking for calm waters-winds and surf are less predictable.
Oahu Β· Best window: midday
high confidenceOahu Β· Best window: morning
high confidenceOahu Β· Best window: morning
medium confidenceOahu Β· Best window: morning
medium confidenceOahu Β· Best window: morning
medium confidenceOahu's windward shores (Kailua, Waimanalo) are windier today (10.7 mph NE), but the waters remain calm and safe for swimming. Kailua Beach Park and Ala Moana Lagoon are the best bets for families and weak swimmers, with lifeguards on duty and minimal surf (4 ft). The North Shore (Sunset Beach, Waimea Bay) has moderate surf (3.1-3.7 ft) and choppy conditions, making it less ideal for swimming but decent for experienced surfers. No active advisories, but south swells (similar to those impacting the Big Island last week) may bring minor chop to south shores β monitor conditions if heading to Waikiki or Ala Moana. Morning is the best time for calm waters and clear skies. Lifeguards urge caution β stay near towers and avoid areas beyond the reef.
Oahu is patchy rain nearby today, with temperatures in the mid-70sΒ°F and moderate NE winds (7.8-10.7 mph). Windward shores (Kailua, Waimanalo) will see the steadiest winds, while the south shore (Ala Moana, Waikiki) offers the most shelter from wind. Rain chances are low (8-19%), but brief showers are possible β pack a light jacket. Morning is the best time for beach visits, with the least wind and most stable conditions. South swells may bring minor chop to south shores β monitor conditions if heading to Waikiki.
Waianae homeless encampment extension draws frustration: The DLNR has granted an extension for the PuΚ»uhonua o Waianae homeless encampment, delaying its relocation. Residents express frustration over limited public access to the coastline. Read more. Extreme heat warning for mainland hikers: While not directly impacting Oahu, the National Park Service warns of extreme heat at the Grand Canyon after three hikers died in heat-related incidents. Hikers in Hawaii should also take precautions β stay hydrated, avoid midday sun, and know your limits. Read more. South swells impact Big Island: Last week, powerful south swells sent massive waves crashing over oceanfront condos in Keauhou, Big Island. While no advisories are active for Oahu, similar swells may bring minor chop to south shores β monitor conditions if heading to Waikiki or Ala Moana. Read more.
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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.