Rivermouth_Wailuku Water Temperature and Wetsuit Guide

Sunny with warm air temperatures at Rivermouth_Wailuku today (feels like 24 °C once we account for wind), and warmer sea temperatures (25 °C). Wear boardshorts or a shorty, or perhaps a thin summer wetsuit to keep the UV off.

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 Rivermouth_Wailuku. 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.

Rivermouth_Wailuku water temperatures peak in the range 26 to 28°C (79 to 82°F) on around the 15th of September and are at their lowest on about the 14th of February, in the range 24 to 25°C (75 to 77°F). Year round warm water temperatures at Rivermouth_Wailuku climb to their maximum in mid September. Even then a rash vest and board shorts should be fine for surfing at any time of year. Rivermouth_Wailuku water temperatures are always warm but dip to their lowest in mid February. You'll need a 2mm neoprene top or a shorty at dawn/dusk or if it's windy.

Actual sea surface water temperatures close to shore at Rivermouth_Wailuku 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 Rivermouth_Wailuku. Refer to our detailed weather forecasts for this information.