Asa Water Temperature and Wetsuit Guide
(Kattegat and Skagerrack, Sweden)
Today's Asa sea temperature is 17.0 °C.
Statistics for 25 Sep (1981–2005) – mean: 13.3 °C, range: 11.3 °C to 15.9 °C
The water temperature (17 °C) at Asa 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.
Map of current Sweden
Surface Water Temperatures based on measurements from oceanographic satellites
Map of current Sweden
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 Asa. 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.
Asa water temperatures peak in the range 15 to 21°C (59 to 70°F) on around the 31st of July and are at their lowest on about the 16th of February, in the range -0 to 4°C (32 to 39°F). The highest seasonal water temperatures at Asa at the end of July lend themselves to a 4/3mm wetsuit or a 3/2mm suit and 3mm neoprene boots. The lowest water temperatures at Asa 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 middle of February.
Actual sea surface water temperatures close to shore at Asa 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 Asa. Refer to our detailed weather forecasts for this information.