Today's Mongagua sea temperature is 19.6 °C
(Normal for this time of year (within 0.2° of average))
| Mean: | 19.4 °C | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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| Range: | 17.7 °C to 20.7 °C | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Statistics for 25 Jul (1981–2005) | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Today, many surfers would wear a spring wetsuit.
Sunny with pleasantly warm air temperatures (feeling like 22 °C once we account for wind), yet at 19 °C the sea remains several degrees colder than the air at Mongagua. The majority of surfers will need a spring wetsuit though a summer suit or even a shorty may suffice for a short session.
 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 Mongagua. 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.
Mongagua sea temperatures peak in the range 24 to 28°C (75 to 82°F) on around the 26th of February and are at their lowest on about the 13th of August, in the range 17 to 21°C (63 to 70°F). Year round warm sea temperatures at Mongagua climb to their warmest 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 lowest Mongagua sea temperatures in the third week of August require something like a 3/2mm fully sealed wetsuit.
Actual sea surface water temperatures close to shore at Mongagua 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 Mongagua. Refer to our detailed weather forecasts for this information.
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