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Grumari water temperature
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Grumari Water Temperature and Wetsuit Guide

(Rio de Janeiro, Brazil)

Today's Grumari sea temperature is 23.7 °C.

Statistics for 12 Nov (1981–2005) – mean: 23.1 °C, range: 21.3 °C to 24.4 °C

Sunny with very warm air temperatures, feeling like 29 °C once we account for any wind. Sea temperatures (23 °C) warm too. Staying warm in the water won't be a problem in board-shorts, but wear at least a rash-vest to keep the UV off.

Brazil Sea Water Temperature

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

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 Grumari. 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.

Grumari Water Temperature Graph

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.

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