
How to Survive Japan's Summer Heat: A Traveler's Survival Guide
If you’re visiting Japan between late June and September, prepare for heat and humidity that can catch first-time visitors off guard. Daytime temperatures regularly hit 33–37°C (91–99°F), and the humidity makes it feel even hotter. The good news: Japan is extremely well-equipped for summer, and with a few local habits you can stay comfortable and safe. Understanding Japan’s Summer Japan’s summer arrives in two phases. First comes tsuyu (the rainy season) in June, then the 真夏 (midsummer) heat from mid-July through August. The combination of high temperature and high humidity is what makes it tough — your sweat doesn’t evaporate easily, so your body struggles to cool down. ...