Katwijk aan Zee Water Temperature and Wetsuit Guide

Very cold water temperature (3 °C / 39 °F) at Katwijk aan Zee is close to freezing. Despite the sunshine, even with a thick winter wetsuit, neoprene hood, gloves and boots it will be difficult for surfers to stay comfortable in the sea at Katwijk aan Zee for long today.

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

Map of current Netherlands 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 Katwijk aan Zee. 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.

Katwijk aan Zee sea water temperatures peak in the range 16 to 20°C (61 to 68°F) on around the 13th of August and are at their lowest on about the 23rd of February, in the range 2 to 8°C (36 to 46°F). The maximum Katwijk aan Zee sea water temperatures in the third week of August require something like a 3/2mm fully sealed wetsuit. The lowest sea water temperatures at Katwijk aan Zee 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 Katwijk aan Zee 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 Katwijk aan Zee. 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.