Today's Praia de Altura sea temperature is 23.1 °C
(3.0°C warmer than normal for this time of year)
| Mean: | 20.1 °C | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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| Range: | 19.0 °C to 21.1 °C | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Statistics for 20 Jun (1981–2005) | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Today, many surfers would wear a summer wetsuit.
A hot sunny day, feeling like 30 °C even after we account for wind, and warm water temperature (23 °C) too at Praia de Altura. Surfers may need a thin summer wetsuit or at least a rash vest to block the UV. Otherwise, warm enough for just board shorts.
 Map of current Portugal Surface Water Temperatures (based on measurements from oceanographic satellites) |  Map of current Portugal 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 Praia de Altura. 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.
Praia de Altura water temperatures peak in the range 21 to 23°C (70 to 73°F) on around the 10th of August and are at their coldest on about the 19th of February, in the range 15 to 17°C (59 to 63°F). Praia de Altura water temperatures are warmest in early to mid August. Surfers should use a 2mm long sleeve shorty or a 3/2mm spring wetsuit if the wind is up. The coldest seasonal water temperatures at Praia de Altura in the third week of February lend themselves to a 4/3mm wetsuit or a 3/2mm suit and 3mm neoprene boots.
Actual sea surface water temperatures close to shore at Praia de Altura 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 Praia de Altura. Refer to our detailed weather forecasts for this information.
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