Today's Tonel sea temperature is 19.1 °C
(2.3° colder than average for this time of year)
| Mean: | 21.4 °C | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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| Range: | 20.1 °C to 22.9 °C | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Statistics for 04 Aug (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 Tonel. 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 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 Tonel. 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.
Tonel sea temperatures peak in the range 21 to 23°C (70 to 73°F) on around the 15th of August and are at their minimum on about the 24th of February, in the range 15 to 17°C (59 to 63°F). Tonel sea temperatures are highest in mid August. Surfers should use a 2mm long sleeve shorty or a 3/2mm spring wetsuit if the wind is up. The minimum seasonal sea temperatures at Tonel in the fourth 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 Tonel 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 Tonel. Refer to our detailed weather forecasts for this information.
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