Surface heat budget was analyzed for the inland area in Kanto region Japan. Background of this study is extreme hot climate in summer in the area. Surface sensible heat flux was estimated with the 1-D model of mixing layer growth and the measured layer height. The height of mixing layer determined from the JMA wind profiler data. The resulted sensible heat flux was 210 Wm-2 as an average of 9-12 LST in August 2011. We compared the flux with previous work; it was as same amount as that in Koganei (200 Wm-2) and is 2/3 of the downtown Tokyo (330 Wm-2).