The weather ratio in August in Tokyo (Japan) comprises 6% clear and sunny days, 16% partly cloudy days, 6% cloudy days, and 71% rainy days. August in Tokyo sees an extremely large amount of rain, and an umbrella is indispensable. The average temperature in Tokyo in August is 28°C. The highest temperature is 28°C, the lowest temperature is 25°C, and the temperature doesn't change much. Roughly half of the days of the month are cloudy, so sunlight his highly valued, It is, on average, a windy place.