Siouville Water Temperature and Wetsuit Guide

Very cold water temperature (8 °C / 47 °F) at Siouville. Despite the sunshine, even with a thick winter wetsuit, neoprene hood, gloves and boots it will be difficult to stay comfortable in the sea for long today.

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

Map of current France 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 Siouville. 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.

Siouville sea water temperatures peak in the range 16 to 19°C (61 to 66°F) on around the 16th of August and are at their coldest on about the 29th of February, in the range 8 to 9°C (46 to 48°F). The highest seasonal sea water temperatures at Siouville in the middle of August lend themselves to a 4/3mm wetsuit or a 3/2mm suit and 3mm neoprene boots. The coldest sea water temperatures at Siouville mean that you will need a flexible 6/5/4mm wetsuit or a well fitting 5/4mm wetsuit with gloves and 5mm neoprene booties and a hood to surf here in late February.

Actual sea surface water temperatures close to shore at Siouville 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 Siouville. 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.