June can be nice, but is often rainy (and humid). July and August are very hot and humid, but also lively with lots of festivals. Mid to late September can be nice (if hot), with fewer tourists than summer or fall, though typhoons can sometimes affect plans.

Visiting Japan in July 2026 is a "mixed bag" that depends heavily on your tolerance for heat and humidity. For most, it is not the ideal time due to the "Tsuyu" (rainy season) which lasts through mid-July, followed by sweltering temperatures that often exceed 35°C (95°F) with high humidity. However, July is fantastic for festivals and fireworks; major events like the Gion Matsuri in Kyoto and various "Hanabi" displays across the country create a vibrant, traditional atmosphere. It is also the start of the official Mount Fuji climbing season, making it the best time for hikers. To make a July trip successful, travelers often head north to Hokkaido, which remains refreshingly cool and dry compared to Tokyo and Osaka. If you stay in central Japan, the key is to start your sightseeing very early in the morning and retreat to air-conditioned museums or malls during the midday heat. While it is a "shoulder season" with slightly lower hotel prices in early July, the end of the month coincides with school holidays, leading to larger crowds at major theme parks.