Osaka Weather

Osaka is located in the humid subtropical climate zone , with four distinct seasons. Its winters are generally mild, with January being the coldest month having an average high of 9.3 °C (49 °F). The city rarely sees snowfall during the winter. Spring in Osaka starts off mild, but ends up being hot and humid. It also tends to be Osaka’s wettest season, with the tsuyu (梅雨, tsuyu, “plum rain”)—the rainy season—occurring between early June and late July. The average starting and ending dates of the rainy season are June 7 and July 21 respectively. Summers are very hot and humid. In August, the hottest month, the average daily high temperature reaches 33.5 °C (92 °F), while average nighttime low temperatures typically hover around 25.5 °C (78 °F). Fall in Osaka sees a cooling trend, with the early part of the season resembling summer while the latter part of fall resembles winter. Precipitation is abundant, with winter being the driest season, while monthly rainfall peaks in June with the “tsuyu” rainy season, which typically ends in mid to late July. From late July through the end of August, summer’s heat and humidity peaks, and rainfall decreases somewhat. Osaka experiences a second rainy period in September and early October, when tropical weather systems, including typhoons, coming from the south or southwest are possible.