Japan in July: what to expect

July is a handover month. The tsuyu rainy season that starts in June usually ends around mid-July on Honshū, and the days after it are hot, humid and bright. Before it ends you get grey skies and heavy showers; after it ends you get 30 °C-plus afternoons and nights that stay near 24 °C, so sightseeing is best before 10am and after 5pm.

Hokkaidō sits outside this pattern. Sapporo and the northern coast stay mild and dry, which is why July is one of the best months to be there. The Japan Alps and other highland towns are cooler than the cities but still see afternoon thunderstorms. Okinawa is in its typhoon season, so treat any island plan as flexible.

July is medium on both counts. There is no Golden Week or Obon surge, and international arrivals dip because of the heat, so city hotels are easier to book than in April, May or November. The exceptions are local: Kyoto fills around 17 July for Gion Matsuri, Fukuoka fills for Hakata Gion Yamakasa in the first half of the month, and Osaka's riverside hotels go on 25 July for Tenjin Matsuri.

Late July is when Japanese school holidays begin, so family-oriented spots — aquariums, theme parks, Okinawa beaches — get busier from about the 20th. Shinkansen seats are usually available at a few days' notice outside festival dates, but reserve the specific train you want rather than relying on unreserved cars.

July is the biggest festival month of the Japanese year, and most of it is free to watch.

Go north or go high. Hokkaidō is the clear winner: mild days, low humidity and long daylight for hiking around Sapporo, Furano and the national parks. Tōhoku and the Japan Alps are the next best, with cooler air and mountain trails. If you stay in the big cities, structure the day around the heat: temples and gardens at opening time, museums and department stores through the afternoon, food streets after dark.

Kyoto is worth it if you want Gion Matsuri, but expect 33 °C afternoons and crowded buses. Tokyo works well in July because so much of it is indoors and air-conditioned. For a quieter base with festival access, Okayama and Hiroshima are practical stops on the way west, and Hiroshima's peace memorial sites are at their most bearable in the early morning.

Pack for wet mornings and hot afternoons in the same week. A compact umbrella beats a rain jacket in the city, and you will want a second shirt per day because nothing dries quickly in the humidity. Light, loose clothing in light colours, a sun hat and sunscreen cover the post-rain heat. Add insect repellent for mountain and lakeside areas, and comfortable sandals or breathable shoes for the wet pavement.

For festivals, bring a small towel or handkerchief, a foldable fan and cash for street stalls. If you plan to climb Mount Fuji or hike in the Alps, add a warm layer and a rain shell — summit temperatures are far below the city's.

June is wetter and quieter, with Hokkaidō already at its best. August is hotter and busier because of Obon, so July is the better of the two if you must travel in midsummer. September stays hot and adds typhoon risk. If your dates are flexible, October and November give clear, mild, dry weather and are the strongest all-round choice for a first trip.