What to expect for water quality, rainfall, and ocean conditions
Sugar Beach sees lower advisory risk in may due to reduced rainfall. Occasional showers can still cause brief water quality concerns, but conditions generally recover quickly.
May is part of Hawaii's dry season (April through September). Sugar Beach sees only about 0.6 inches of rain. Runoff events are infrequent and brief. Water quality is generally at its best during dry months.
May brings transitional ocean conditions to Sugar Beach. Swells shift between winter and summer patterns. Water temperature is 78-80°F. Conditions are generally moderate but can change quickly.
Moderate. A quieter month before summer rush. Weekdays are particularly uncrowded at Sugar Beach.
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, Sugar 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. 🤙