In 2026, April remains the busiest and most expensive month for tourism in Japan, largely driven by the Cherry Blossom (Sakura) season. During the first two weeks of April, visitors from around the globe flock to cities like Tokyo, Kyoto, and Osaka to witness the fleeting pink blooms, causing hotel prices to surge and major sites like the Fushimi Inari Shrine to reach peak capacity. However, October and November are close runners-up, as the autumn foliage (Koyo) draws massive crowds seeking the vibrant red and gold maples. Another significant peak occurs during the "Golden Week" (late April to early May), which is a cluster of national holidays when domestic travel is at its highest, making trains and theme parks exceptionally crowded. If you are looking to avoid the masses, the peer-to-peer recommendation is to visit in the "shoulder" months of February or June; while February is cold and June is the rainy season, you will find significantly lower prices and a much more peaceful experience at Japan's most iconic landmarks.