Asa Water Temperature and Wetsuit Guide

Water temperature (-1 °C / 30 °F) at Asa is close to freezing. Despite the weak sunshine, the air will feel like -5 °C / 23 °F. Even if you wear a thick winter wetsuit, a neoprene hood, neoprene gloves and boots, it will still be difficult to stay in the sea for very long today.

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 sea water temperatures peak in the range 15 to 21°C (59 to 70°F) on around the 30th of July and are at their minimum on about the 16th of February, in the range -0 to 4°C (32 to 39°F). The maximum seasonal sea water temperatures at Asa at the tail of July lend themselves to a 4/3mm wetsuit or a 3/2mm suit and 3mm neoprene boots. The minimum sea 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.

Latest surface water temperature for the entire globe. Click the image to view a larger version.