Average monthly water temperature in Kapaa, the United States of America
On this page you find the mean water temperature over the year in Kapaa (Hawaii), the United States of America. Get insights into the water temperature fluctuations and discover what they mean for visitors.
In Kapaa, water temperatures are consistently warm throughout the year. The warmest month is August, with an average water temperature of 27°C (81°F).
The coolest month is January, with an average temperature of 24°C (75°F). This makes Kapaa a year-round destination for swimming and other water-based activities.