What to expect for water quality, rainfall, and ocean conditions
The dry leeward coast and lack of stream discharge make Electric Beach one of Oahu's cleanest beaches for water quality. Advisory events are extremely rare here.
May begins the driest stretch at Electric Beach. Almost no rain falls on the leeward coast. The warm water outfall creates a year-round snorkeling attraction. Water clarity is excellent.
The warm water outfall from the Kahe Power Plant raises water temperature 3-5°F above surrounding ocean. This attracts dolphins, sea turtles, and tropical fish year-round. Summer brings the calmest conditions for snorkeling. The warm plume is clearly visible as a slight shimmer. Visibility is excellent. Spinner dolphins often visit in early morning hours.
Low to moderate. Electric Beach has a dedicated following of snorkelers and divers. Fewer visitors during winter months. The small parking lot rarely fills on weekdays.
The Hawaii Department of Health recommends staying out of the ocean for at least 72 hours after heavy rain. In may, rainfall is less frequent but individual storms can still produce contaminated runoff.
When conditions are clear, Electric Beach has excellent ocean activities. Check the water quality above, then book with confidence.
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Safe to Swim Hawaii provides water quality information based on publicly available DOH data and seasonal patterns. This is not medical or safety advice. Always check current conditions, obey posted signs, and use your own judgment before entering the ocean. Privacy Policy
⚠️ Important Disclaimer
Safe to Swim Hawaii is an independent passion project — not affiliated with the Hawaii Department of Health or any government agency. Water quality ratings are estimates based on publicly available testing data and geographic analysis. 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 before entering the water.
When in doubt, don't go out. 🤙