K.O.A Water Temperature and Wetsuit Guide

Warm in and out of the water temperature at K.O.A today, but forecast to be overcast. With sea temperatures of 23 °C and a wind chill of 23 °C, most surfers will choose a shorty or a summer suit or just board shorts.

Map of current United States Surface Water Temperatures based on measurements from oceanographic satellites

Map of current United States Sea Water Temperature Anomalies (compared with long term averages at this time of year)

(click thumbnails to expand)

Below is a graph of Historical Sea Surface Temperature for K.O.A. This has been derived from analysis of two decades of oceanographic satellite measurements of nearby open water. We have calculated the average water temperature variation around the year as well as the extremes that have been observed on each date.

All of the graphs for the surf breaks presented on Surf-Forecast.com are on the same scale to enable comparison between locations around the world.

K.O.A sea temperatures peak in the range 26 to 28°C (79 to 82°F) on around the 19th of July and are at their minimum on about the 29th of February, in the range 14 to 19°C (57 to 66°F). Year round warm sea temperatures at K.O.A climb to their maximum in the third week of July. Even then a rash vest and board shorts should be fine for surfing at any time of year. The minimum seasonal sea temperatures at K.O.A in late February lend themselves to a 4/3mm wetsuit or a 3/2mm suit and 3mm neoprene boots.

Actual sea surface water temperatures close to shore at K.O.A can vary by several degrees compared with these open water averages. This is especially true after heavy rain, close to river mouths or after long periods of strong offshore winds. Offshore winds cause colder deep water to replace surface water that has been warmed by the sun. Air temperature, wind-chill and sunshine should also be considered before deciding on the kind of wetsuit needed to stay warm when surfing at K.O.A. Refer to our detailed weather forecasts for this information.