May is generally considered one of the best and most pleasant months to visit Japan, as it is characterized by mild temperatures and relatively low rainfall compared to the summer months. While the very beginning of May is "Golden Week" (a busy domestic holiday period), the rest of the month features clear, sunny skies and lush green landscapes. It is the "shoulder season" between the cherry blossoms of April and the official rainy season (Tsuyu). The rainy season typically starts in early June for central Japan (Tokyo, Kyoto), though it begins in mid-May for the southern islands of Okinawa. In a typical May, you might experience a few scattered light showers, but the heavy, persistent "plum rains" haven't arrived yet. The humidity is also very low during this time, making it ideal for walking through the historic districts of Kyoto or hiking in the Japanese Alps. For 2026 travelers, May offers a perfect balance: you avoid the spring "Sakura" crowds and the sweltering, wet summer heat, enjoying some of the most consistent outdoor weather the country has to offer.