In this investigation, recent climatic change in Japan area is analyzed. The purpose of the present study is to evaluate the recent trends of the average temperatures and other weather records（1983-2012）. The annual average temperatures in most prefectures are rising at a rate of 3-4℃ /100years and they have a certain degree of relationship with the human activities. It is found that the annual average of the daily maximum, the daily mean and the daily minimum temperatures are rising, and the average amount of solar radiation and the sunshine duration are increasing for 30 years. Further, the annual maximum of the hourly rainfall intensity is also increasing. It is possible that the global warming has affected the climate in Japan.
