Kaunaʻoa (Mauna Kea) Beach, HI
Beach Alerts
Dangerous Surf
Dangerous Surf: High waves present from 7 AM-12 PM — swimming not recommended
UV Alert
High UV Alert: SPF 50+ recommended from 11 AM-12 PM (UV Index 8)
About This Beach
Kaunaʻoa Beach, also known as Mauna Kea Beach, is a stunning crescent-shaped cove boasting soft, white sand and calm, clear turquoise waters. Located adjacent to the Mauna Kea Beach Hotel, this public beach offers limited parking, resulting in a generally less crowded atmosphere compared to nearby beaches. Amenities include clean restrooms and outdoor showers, but shade is limited; visitors are advised to bring their own.
*Click a parking icon on the map to draw the shortest path to the nearest entrance.
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Beach Overview
Amenities
Activities & Rentals
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Weather Forecast
Updated: 10/2/2025, 6:30:00 AM
Hourly
| Time | Air Temp | UV | Wind | Rain |
|---|---|---|---|---|
| 06:00 | 83° | 0 | 9 mph | 0 |
| 07:00 | 83° | 0 | 8 mph | 0 |
| 08:00 | 83° | 1 | 7 mph | 0 |
| 09:00 | 83° | 3 | 5 mph | 0 |
| 10:00 | 84° | 5 | 3 mph | 0 |
| 11:00 | 84° | 7 | 2 mph | 0 |
| 12:00 | 85° | 8 | 1 mph | 0 |
Surf Conditions
Updated: Updated: 10/2/2025, 6:30:00 AM
Hourly Surf
| Time | Temp | Wave | Period | Swell | Tide |
|---|---|---|---|---|---|
| 06:00 | 82°F | 1.5 ft | 12s | ↑ N | +1.6 ft |
| 07:00 | 82°F | 1.4 ft | 12s | ↑ N | +1.8 ft |
| 08:00 | 82°F | 1.4 ft | 12s | ↑ N | +2.1 ft |
| 09:00 | 82°F | 1.4 ft | 12s | ↖ NW | +2.5 ft |
| 10:00 | 82°F | 1.4 ft | 12s | ↖ NW | +2.8 ft |
| 11:00 | 82°F | 1.4 ft | 12s | ← W | +3.1 ft |
| 12:00 | 82°F | 1.4 ft | 12s | ← W | +3.3 ft |