Typical September highs at Turtle Bay reach about 85°F, with reliable beach weather most of the year. Turtle Bay is located in Waialua, Hawaii.
Waialua, Hawaii · live parking & conditions · updated June 19, 2026
In a typical year September is the warmest month here, with highs near 85°F, and it's reliably beach weather most of the year. Tap Turtle Bay on the map for live surf, wind, water temperature, UV and tide times.
Open Turtle Bay on the map →