Japan's rainy season has ended in the Kanto-Koshin and Tokai regions, marking a seasonal shift as stronger high pressure settles over a wide area. The change, reported on July 20, is bringing clearer conditions but also a sharp rise in temperatures.
With the rainy period now over in those regions, heat is becoming the main concern. Forecasts indicated temperatures could climb to 38 C in Kumagaya, Saitama Prefecture, and in Kofu, underscoring how quickly conditions are turning severe.
The combination of summer sunshine and strengthening atmospheric pressure is expected to drive intense heat across Japan. While the end of the rainy season often signals more stable weather, it can also bring dangerous daytime highs, especially in inland areas known for extreme summer temperatures.
The development highlights a broader transition from prolonged wet weather to peak summer heat in central Japan. For residents in Kanto-Koshin and Tokai, the focus is now shifting from rain and humidity to coping with very hot conditions as the season advances.
