Many kinds of meteorological and coastal data observed at the attacking time of Typhoon No.6626 witch caused heavy damages along the recess of Suruga Bay. in 1966 were investigated.
　In addition to the data of above the typhoon, the data observed at the time of Typhoon No. 6524 and No.6604 were analysed. After the analysis, the significant wave height and peirod which attacked the area at the time were estimated by various methods of wave estimation, and discussed.
　The results are summarized as follows;
　1) Maximum significant wave height and period observed at Numazu Port at the time of Typhoon No.6626 are 3.22m and 17.3 sec.respectively.
　2) According to the spectrum analysis of wave records observed at Numazu and Tagonoura Port, long period waves with the period of about 180 sec., 70 80 sec. and 50 sec. coexisted with wind waves at the time of stor my condition.
　3) An estimated significant wave height at the off of Tagonoura Port at the time of Typhoon No.6626 is larger than 11m and smaller than 15m. and the period is about 20 sec.
　4) pressure type wave meters which have been used widely in Japan were tested to make their low frequency response characteristics clear.