Koh’s Tokyo Dialogue

  Tokyo’s Summer Heat Is Reaching Alarming Levels In recent years, Tokyo’s summer heat has become more than just uncomfortable — it has reached alarming levels. This isn’t mere anecdote; data clearly show that Tokyo is often hotter than Okinawa, Japan’s southernmost tropical islands, famous for their beaches, coral reefs, and warm climate. 2025: Another Scorching Summer Ahead Japan’s Meteorological Agency has already warned that  summer 2025 will be yet another brutal season . Temperatures in Tokyo are expected to exceed the seasonal average, with more frequent days over 35°C (95°F), and humidity levels staying dangerously high. Experts even suggest that this summer could rival or surpass the record-breaking heat of 2023 and 2024. If you’re planning to visit or live in Tokyo during the summer months,  be prepared — the heat is real, and it’s here to stay. Isn’t Okinawa Supposed to Be Hotter? Many people unfamiliar with Japan assume Okinawa should be the hottest place in t...

On June 10th, Japan’s Meteorological Agency announced that the rainy season — known as tsuyu ( 梅雨 ) — has officially begun in Tokyo and the surrounding Kanto-Koshin region. If the pattern follows the historical average, the rainy season will likely end around July 19. If you're planning a trip to Tokyo or living in Japan, you may have heard of tsuyu . But what exactly is it? Should you be worried about constant rain? Let’s take a closer look at what this season really means and how to enjoy your time, even if the skies are gray. What Is Tsuyu? Tsuyu — often translated as "the plum rain" — is Japan’s rainy season. It typically lasts from early June to mid-July, depending on the region. It's caused by a seasonal weather front that brings moist air and frequent rainfall. But here’s the good news: Tsuyu does not mean non-stop rain. Many days are cloudy with only light rain, and there are often breaks of sunshine between showers. How Often Does ...