Summer

Japanese summer is genuinely brutal — not just hot, but oppressively humid in a way that shocks people who thought they knew heat. The good news is that locals have developed the tools and habits to handle it. Here’s how to survive — and even enjoy — summer in Japan. The Japanese Summer Timeline Month What’s Happening June Rainy season (梅雨, tsuyu) — grey, humid, daily rain July Rainy season ends; heat begins. Fireworks festivals start August Peak heat. Obon holiday. Outdoor festivals everywhere September Still hot until mid-month; typhoon season peaks Surviving the Heat: Practical Tips Stay Hydrated Drink 1.5–2 liters of water per day minimum Convenience stores sell sports drinks (pocari sweat, aquarius) — better than water alone for electrolytes Avoid alcohol as your main hydration during extreme heat days Cool Down Spots Convenience stores — everywhere, always air-conditioned Shopping malls and department stores — stay as long as you want Libraries, city halls — free, clean, air-conditioned Underground shopping streets — Tokyo, Osaka, and Nagoya have extensive underground networks Clothing Lightweight, breathable fabrics (linen, moisture-wicking) Japanese “cool touch” (冷感) clothing — sold everywhere from ¥500 in summer Cooling towels — wet and wave for instant cooling, sold at ¥100 stores UV parasols — Japanese women (and increasingly men) carry these; extremely effective Cooling Products from ¥100 Shops Cooling spray (冷却スプレー) — spray on skin for instant relief Cooling gel sheets (熱さまシート) — stick to forehead Mini portable fans with misting bottles — from ¥500 at convenience stores Ice neck rings — reusable PCM cooling rings Heat Stroke (熱中症) Warning Heat stroke is a genuine risk in Japan. Every summer, hundreds are hospitalized. ...

Japanese summer is intense — 35°C heat, crushing humidity, and a calendar packed with festivals, traditions, and events that most foreigners know nothing about. Once you understand what’s happening and why, summer in Japan becomes genuinely magical. Here’s your guide. Obon (お盆): Japan’s Most Important Summer Holiday Obon is a Buddhist tradition honoring the spirits of ancestors. It’s observed in mid-August (typically August 13–16, though some regions use July). For foreigners, the most noticeable effects are: ...