July in Japan is characterized by the tail end of "Tsuyu" (the rainy season), particularly in the first half of the month. While the rain is frequent, it is often not a constant drizzle but rather intense, humid downpours. In Tokyo, 2026 averages show about 19 days with some rainfall in July, totaling around 130mm to 150mm. The rainy season typically clears in central Japan by mid-July, leading to "Umi no Hi" (Marine Day) and the start of the intense summer heat. However, travelers should be aware that July also marks the beginning of the typhoon season. While major storms are less frequent in July than in August or September, they can bring several days of heavy wind and torrential rain. If you are visiting in 2026, the northern regions like Hokkaido are the best bet for dry weather, as they are largely unaffected by the Tsuyu front. For everywhere else, carrying a "Gasha" (sturdy Japanese umbrella) and planning for indoor museum visits during the afternoon "Guerrilla Rainstorms" is highly recommended.