Kaunaʻoa (Mauna Kea) Beach, HI
Beach Alerts
Dangerous Surf
Dangerous Surf: High waves present from 9 AM-2 PM — swimming not recommended
UV Alert
High UV Alert: SPF 50+ recommended from 11 AM-1 PM (UV Index 9)
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: 4/15/2026, 9:00:00 AM
Hourly
| Time | Air Temp | UV | Wind | Rain |
|---|---|---|---|---|
| 09:00 | 81° | 3 | 8 mph | 0 |
| 10:00 | 82° | 6 | 8 mph | 0 |
| 11:00 | 82° | 8 | 8 mph | 0 |
| 12:00 | 82° | 9 | 9 mph | 0 |
| 13:00 | 82° | 7 | 11 mph | 0 |
| 14:00 | 82° | 4 | 13 mph | 0 |
| 15:00 | 82° | 3 | 12 mph | 0 |
Surf Conditions
Updated: Updated: 4/15/2026, 9:00:00 AM
Hourly Surf
| Time | Temp | Wave | Period | Swell | Tide |
|---|---|---|---|---|---|
| 09:00 | 78°F | 1.6 ft | 11s | ← W | +1.0 ft |
| 10:00 | 79°F | 1.6 ft | 11s | ← W | +1.4 ft |
| 11:00 | 79°F | 1.6 ft | 10s | ← W | +2.0 ft |
| 12:00 | 79°F | 1.6 ft | 10s | ← W | +2.5 ft |
| 13:00 | 79°F | 1.6 ft | 10s | ← W | +3.0 ft |
| 14:00 | 79°F | 1.6 ft | 10s | ← W | +3.2 ft |