Altnau (Lake Constance)

Altnau on Lake Constance is a shallow, beginner-focused windsurfing area with an unusually large standing zone (up to about 200 m) and plenty of meadow space for rigging and launching. The launch is described as easy, and the spot’s shallow, uncluttered character helps beginners manage body-dragging, relaunching, and confidence-building in calmer conditions. Wind is centered on North-West conditions, with sources also highlighting North-East Bise (NE) days as a strong setup for steadier riding. Typical on-water winds are described in a light-to-moderate range (about 10–25 knots), and gustiness is noted as moderate—especially when summer thunderstorms develop. For wind timing, a daytime (often afternoon) window for lighter thermal/breeze conditions during summer high-pressure patterns is commonly cited, but many days are still driven by broader weather systems and fronts. Safety considerations are important because the area can include shipping-lane traffic and there are stones/obstacles near shore, plus swimmers in the lido zone during summer. Sources also note seasonal swimming buoys, and lido access may be restricted during peak swimming hours. Kitesurfing is generally prohibited on the Swiss side of Lake Constance except in specific permit zones, and Altnau is not a designated kite area. On amenities, the spot area is served by lido and harbor infrastructure (including showers, toilets, changing areas, parking, and food options), and there’s camping directly at the spot. Lifeguards are described as seasonal, while rescue availability is limited; storm-risk periods are addressed by local warning practices around incoming weather.