Den Haan Water Temperature and Wetsuit Guide

Sunny with pleasantly warm air temperatures (feels like 24 °C) at Den Haan, yet the sea remains several degrees colder than the air. Most surfers will need a spring wetsuit though a summer suit or even a shorty may suffice for a short session.

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

Map of current Belgium 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 Den Haan. 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.

Den Haan water temperatures peak in the range 16 to 20°C (61 to 68°F) on around the 17th of August and are at their minimum on about the 24th of February, in the range 4 to 9°C (39 to 48°F). The warmest seasonal water temperatures at Den Haan in the middle of August lend themselves to a 4/3mm wetsuit or a 3/2mm suit and 3mm neoprene boots. The minimum water temperatures at Den Haan 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 the fourth week of February.

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