June to September: temperatures hover 18–25°C, rain is manageable, and the city hums with outdoor life along the Main. July and August are the warmes…
May and September: 15-22°C, fewer tourists, and hotel discounts of 10-15%. You miss the worst heat and the priciest nights. The R…
Go in June or September for the best balance of mild weather, few crowds, and fair prices.