Kaunaʻoa (Mauna Kea) Beach, HI
Beach Alerts
Dangerous Surf
Dangerous Surf: High waves present from 8 AM-2 PM — swimming not recommended
UV Alert
High UV Alert: SPF 50+ recommended from 11 AM-2 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: 8/29/2026, 8:00:00 AM
Hourly
| Time | Air Temp | UV | Wind | Rain |
|---|---|---|---|---|
| 08:00 | 80° | 2 | 4 mph | 0 |
| 09:00 | 83° | 4 | 5 mph | 0 |
| 10:00 | 85° | 6 | 5 mph | 0 |
| 11:00 | 86° | 8 | 4 mph | 0 |
| 12:00 | 88° | 8 | 4 mph | 0 |
| 13:00 | 89° | 9 | 5 mph | 0 |
| 14:00 | 89° | 8 | 6 mph | 0 |
Surf Conditions
Updated: Updated: 8/29/2026, 8:00:00 AM
Hourly Surf
| Time | Temp | Wave | Period | Swell | Tide |
|---|---|---|---|---|---|
| 08:00 | 83°F | 1.4 ft | 11s | ↙ SW | +1.4 ft |
| 09:00 | 83°F | 1.4 ft | 11s | ↙ SW | +1.2 ft |
| 10:00 | 83°F | 1.4 ft | 10s | ↙ SW | +1.1 ft |
| 11:00 | 83°F | 1.4 ft | 10s | ↙ SW | +1.3 ft |
| 12:00 | 83°F | 1.4 ft | 10s | ↙ SW | +1.7 ft |
| 13:00 | 83°F | 1.4 ft | 10s | ↙ SW | +2.2 ft |
| 14:00 | 84°F | 1.4 ft | 10s | ↙ SW | +2.6 ft |