Guaratuba Water Temperature and Wetsuit Guide

Very warm air temperatures and very warm water(26 °C / 79 °F) too at Guaratuba, warm enough for wearing board shorts and a rash vest in the surf. Cloudy, but feeling very pleasant in and out of the water.

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

Map of current Brazil 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 Guaratuba. 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.

Guaratuba sea temperatures peak in the range 24 to 28°C (75 to 82°F) on around the 26th of February and are at their coldest on about the 23rd of July, in the range 16 to 20°C (61 to 68°F). Year round warm sea temperatures at Guaratuba climb to their highest in the fourth week of February. Even then a rash vest and board shorts should be fine for surfing at any time of year. The coldest Guaratuba sea temperatures in the fourth week of July require something like a 3/2mm fully sealed wetsuit.

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

Latest surface water temperature for the entire globe. Click the image to view a larger version.