Wetter Haltern am See is a lake in Haltern am See, Germany. The lake was created in 1930 by damming the Stever River and has a surface area of 3.5 square kilometers. The lake is a popular recreation area for swimming, boating, and fishing.
The lake is also home to a variety of wildlife, including waterfowl, fish, and amphibians. The lake is surrounded by a nature reserve, which provides habitat for many different species of plants and animals.