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KAUAI · EAST SIDE

Anahola Beach Park

Water quality status and bacteria risk rating

📍 East Kauaʻi, Hawaiian Home Lands community

Checking live advisories…
Community Water Testing
The Hawai‘i Department of Health does not run routine bacteria-testing here. The readings below come from the Surfrider Foundation’s volunteer Blue Water Task Force, which fills coverage gaps DOH doesn’t reach.
Community Testing · Surfrider BWTF
Anahola Bay Surf
Last sample 2026-05-09 · view full report →
886 MPN/100mL
exceeds BAV
Anahola Stream mouth
Last sample 2026-05-09 · view full report →
5012 MPN/100mL
exceeds BAV
About: Volunteer water-quality monitoring by the Surfrider Foundation's Blue Water Task Force. Method: IDEXX Enterolert (MPN/100mL). Threshold: 130 MPN/100mL Beach Action Value — matches Hawaii DOH. Sampling: monthly (Kauaʻi/Maui), biweekly (Oʻahu).
Source: Surfrider Foundation Blue Water Task Force · Updated 2026-05-15
If It Looks Brown, Don't Swim
Never enter the ocean when the water appears brown or murky, even if no advisory is posted. Hawaii is often slow to test beaches and update advisories — not every beach is monitored. After heavy rain, wait at least 72 hours and until the water clears before swimming.
Learn more about brown water advisories →
Historical Bacteria Risk
⚠ Historical rating — this is based on long-term testing data, not current conditions. The state of Hawaii is often slow to test beaches and update advisories. Always check the water yourself and avoid brown or murky water.
Moderate-Low Risk 2 / 5

Anahola Beach Park on Kauaʻi's East Side has historically baseline water quality under dry conditions. Open ocean exposure provides decent flushing, and the beach is set in a largely rural area with less urban development than other parts of the island.

The main water quality concern is the Anahola Stream, which empties into the ocean at the north end of the beach. After rain, this stream can carry elevated bacteria levels from upstream agricultural and residential areas. The East Side of Kauaʻi receives moderate rainfall, making stream-related runoff a recurring consideration. Swim away from the stream mouth, especially after rain.

Based on: DOH monitoring, Anahola Stream runoff potential, East Side rainfall patterns, open ocean flushing

⚠️ The 72-Hour Rain Rule

The Department of Health recommends staying out of the ocean for at least 72 hours after heavy rain. Anahola Stream can carry significant runoff into the beach area after storms. Avoid swimming near the stream mouth at the north end of the beach after any rain. Always check the water visually before entering.

Anahola Area — Nearby Accommodations
🏨 Kapaʻa / Coconut Coast
Hotels and vacation rentals in nearby Kapaʻa — 10 min south
Info
Anahola Beach Park Water Quality by Month
January February March April May June July August September October November December
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⚠️ Important Disclaimer

Safe to Swim Hawaii is an independent passion project — it is not affiliated with the Hawaii Department of Health or any government agency. Water quality ratings on this site are estimates based on publicly available testing data and geographic analysis. They are not real-time measurements and may not reflect current conditions. “No DOH Alerts” means no advisory is currently posted — it does not mean the water was tested and found safe. DOH only monitors a fraction of Hawaii’s beaches, and some areas have no regular testing at all.

Always verify current water quality conditions with the Hawaii Department of Health Clean Water Branch before entering the water. This site is for informational purposes only and should not be the sole basis for any swimming decisions.

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This site does not recommend or advise anyone to swim at any beach. We share government 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. 🤙

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