You could say that Japan has five seasons. From June 10th or so to mid/late July is the rainy season when, though it is warm, the cloud cover and frequent rain keeps the temperatures in the low twenties. After that, the temperature and soars and the humidity is very hard to take, no matter how long you’ve lived in Japan. It’s a bit like being in a sauna with your clothes on, and nights are only marginal easier to take than daytimes. Many of my friends head off to Europe for August to escape what one of my friends calls, “the blast furnace”.