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Katwijk aan Zee Water Temperature and Wetsuit Guide


Today's Katwijk aan Zee sea temperature is 17.7 °C.

Statistics for 03 Jul (1981–2005) – mean: 15.6 °C, range: 13.6 °C to 17.2 °C

The water temperature (17 °C) at Katwijk aan Zee is relatively warm. If the sun does come out as forecast, it should feel warm enough to surf in a summer wetsuit. Effective air temperature of 15 °C.

Netherlands Sea Water Temperature

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

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.

Katwijk aan Zee Water Temperature Graph

All of the graphs for the surf breaks presented on 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 14th of August and are at their coldest on about the 23rd of February, in the range 2 to 8°C (36 to 46°F). The highest Katwijk aan Zee sea water temperatures in mid August require something like a 3/2mm fully sealed wetsuit. The coldest 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.