June through September is deemed to be the best time to visit Bavaria. Warm summer months are famous for the bright cultural events like Kaltenberger Ritterturnier or Bayreuth Festival and for the perfect conditions for hiking in the Alps. Spring may offer thinner tourist crowds but is also famed for heavy showers, so it is nice to have an umbrella by your side. Bavarian autumn is mild but can be quite busy due to the Oktoberfest. As the period between November and February can be rather cold, packing a warm jacket sounds like a good idea. Moreover, skiing at Zugspitze makes an unforgettable winter experience, so don't miss the chance to hit the slopes.