Water quality status and bacteria risk rating
📍 Kohala Coast, Big Island — Secluded cove north of Kua Bay
Kikaua Beach sits on the Big Islandʻs leeward Kohala Coast, one of the driest and clearest shorelines in all of Hawaii. Annual rainfall in this area is under 10 inches — compared to over 130 inches in Hilo. This means minimal agricultural and urban runoff, and consistently excellent water clarity.
The Kohala Coastʻs offshore volcanic rock formations create natural protection from ocean swells. The beach features brilliant white sand and crystal-clear turquoise water. Sea turtle sightings are common year-round. The beach is less developed than nearby resort beaches, giving it a more wild, remote feel.
Based on: Leeward location, desert-dry climate (<10 in/yr rainfall), no significant streams, good ocean circulation
The Department of Health recommends staying out of the ocean for at least 72 hours after heavy rain. Even on the dry Kohala Coast, rare Kona storms can bring heavy rain that temporarily affects coastal water quality.
Free alerts when water quality changes — bacteria warnings, brown water advisories, and all-clear notices.
⚠️ Important Disclaimer
Safe to Swim Hawaii is an independent passion project — not affiliated with the Hawaii Department of Health. Water quality ratings are estimates based on publicly available data and are not real-time measurements.
Always verify with the Hawaii DOH Clean Water Branch before entering the water.
When in doubt, donʻt go out. 🤙