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OʻAHU · DIAMOND HEAD · HONOLULU

Makalei Beach Park

The pocket beach just east of Diamond Head Lighthouse, tested biweekly by Surfrider Oʻahu

Community Water Testing
The dated readings below come from the Surfrider Foundation’s volunteer Blue Water Task Force. They are separate from current DOH advisories and do not describe today’s water quality. Check the live DOH status above before using these samples for planning.
Community Testing · Surfrider BWTF
Makalei Beach Park
Last sample 2026-10-04 · view full report →
<10 (unit not supplied by feed)
dated sample
About: Volunteer water-quality monitoring by the Surfrider Foundation's Blue Water Task Force. Source method and units are preserved when supplied. Missing feed units remain unknown. Dates vary by sample point; these observations do not establish current conditions or cancel an official advisory.
Source: Surfrider Foundation Blue Water Task Force · Widget rendered 2026-10-25
Water-quality sources
Check the dated sample
BWTF tested · biweekly

Makalei is the pocket beach east of Diamond Head Lighthouse, popular with locals for its quiet character and proximity to Honolulu. Check the Community Water Testing section for the sample date, result and full Surfrider report. A sample describes the water collected at that place and time; it does not establish today's water quality. Check the live DOH status above separately.

Why the Readings Run the Way They Do
Open coast and residential drainage

Makalei sits on the eastern flank of Diamond Head, exposed to the open ocean. A fringing reef lies offshore, with residential streets and Diamond Head Road above the beach.

Runoff can reach the beach through the surrounding drainage after rain. Open-ocean exposure does not establish current water quality; use the dated community samples and current DOH advisories as separate sources.

🌧️
After Rain — Check Conditions
After rain: Avoid ocean contact during or immediately after heavy rain, near runoff, or when water is brown or cloudy.
Current notices: Follow any DOH advisory affecting this beach until DOH lifts it.
Before returning: Elapsed time and clear-looking water do not establish water quality. Check current DOH guidance and the live status above.
Testing Coverage

The Hawaii Department of Health does NOT routinely test Makalei Beach Park. The community-tested readings on this page come from the Surfrider Foundation Blue Water Task Force, a volunteer-led monitoring program run by the Surfrider Oʻahu chapter.

BWTF samples Makalei Beach Park biweekly using the IDEXX Enterolert method (MPN/100mL), and compares results against the same 130 Beach Action Value DOH uses statewide. See our overview of citizen water-quality testing in Hawaiʻi for the methodology and how BWTF data fits with DOH coverage.

Practical Notes
Where to Enter

Steep sand entry — not as gentle as Waikiki. The fringing reef creates a swimming pool at high tide. Avoid the immediate base of the lighthouse cliffs (rocks, urchins).

When It's at Its Best

Summer mornings on a small south swell. The east side stays surfable on most days. Winter brings the occasional north-wrap; the lighthouse blocks most of it. Snorkeling is decent on the calmest days.

Getting There

Off Diamond Head Road past the lighthouse. Limited roadside parking. About 5 minutes east of Waikiki by car. Bus route 14 stops at the top of Diamond Head Road; walk down.

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⚠️ Important Disclaimer

Safe to Swim Hawaii is an independent passion project — not affiliated with the Hawaii Department of Health, the Surfrider Foundation, or any government agency. Bacteria readings on this page come from the Surfrider Blue Water Task Force, a volunteer-led monitoring program. Readings are point-in-time samples; conditions change with weather, runoff, and wave patterns. They are not real-time measurements and may not reflect current conditions.

Always verify current water quality conditions with the Hawaii DOH Clean Water Branch and BWTF directly before entering the water.

This site does not recommend or advise anyone to swim at any beach. We share publicly available data and geographic analysis so you can make your own informed decisions. By using this site you accept full responsibility for your own safety. See our Terms of Use for full details.

When in doubt, don't go out. 🤙

© 2026 Safe to Swim Hawaii · Independent passion project · safetoswimhawaii@gmail.com