Treasure Island Water Temperature and Wetsuit Guide

Sunny with very warm air temperatures, feeling like 27 °C once we account for any wind. Sea temperatures (28 °C) very warm too. Staying comfortable in the water at Treasure Island won't be a problem, but wear at least a rash-vest to keep the UV off.

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

Map of current Indonesia 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 Treasure Island. 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.

Treasure Island sea water temperatures peak at 30°C (86°F) on around the 1st of March and are at their minimum on about the 23rd of October, in the range 27 to 30°C (81 to 86°F). Year round warm sea water temperatures at Treasure Island mean that a rash vest and board shorts should be fine for surfing at any time of year

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