The best time to visit Arendsee is during the late spring and summer months, from May to September, when the weather is warm and conducive to outdoor activities.
During these months, the average temperatures range from 15°C to 25°C (59°F to 77°F), making it great for enjoying the lake and surrounding nature. The days are long, offering ample daylight for exploring the region's walking and cycling paths, as well as water sports on the lake. Many local events and open-air festivals also take place during this time.
For those who prioritize swimming and sunbathing, July and August are ideal. The lake waters are at their warmest, and the lakeside beaches are fully operational. This period is particularly good for families looking to enjoy a classic summer vacation by the water, with opportunities for boating, paddleboarding, and relaxing by the shoreline.
Travelers interested in a quieter experience, perhaps focusing on hiking or cycling without the peak summer crowds, might prefer May, June, or September.