Lake Tahoe is generally safe for swimming, but visitors should be aware of the lake’s cold water temperatures, which remain low even during the peak of summer. Sudden immersion in cold water can be surprising for those who are not prepared. Swimming near designated beaches and calm areas is recommended, and swimmers should avoid areas with boat traffic or strong afternoon winds. The water is clean and clear, with visibility that often reaches dozens of feet, making Tahoe a scenic and refreshing place to swim. For the most comfortable experience, many swimmers prefer late June through early September, when water temperatures are warmest.