Tsuyu is Japan’s rainy season. It is a seasonal transition, not a single rainy day.
Tag: JMA
Will the 2026 Rainy Season Start Early in Japan? What We Know From the Long-Range Outlook
The 2026 rainy season in Japan may start earlier than usual, but the exact timing still depends on later forecasts.
How Is the Start of the Rainy Season Predicted? How JMA Decides
Japan rainy season start dates are judged from recent weather, the weekly outlook, and the seasonal front.
When Does the Rainy Season Start in Kanto? Average Timing and Forecast Signals
The Kanto rainy season usually starts around early June. Here is how to read the average timing and forecast signals.