北海道:吉岡の 潮汐 2027年04月19日(月) 潮時(分),0,15,30,45,60,75,90,105,120,135,150,165,180,195,210,225,240,255,270,285,300,315,330,345,360,375,390,405,420,435,450,465,480,495,510,525,540,555,570,585,600,615,630,645,660,675,690,705,720,735,750,765,780,795,810,825,840,855,870,885,900,915,930,945,960,975,990,1005,1020,1035,1050,1065,1080,1095,1110,1125,1140,1155,1170,1185,1200,1215,1230,1245,1260,1275,1290,1305,1320,1335,1350,1365,1380,1395,1410,1425,1440 潮位(p),41.2,43.6,45.8,47.9,49.8,51.4,52.8,53.9,54.8,55.3,55.5,55.3,54.8,54.1,53,51.6,49.9,48,45.9,43.6,41.2,38.6,36,33.4,30.8,28.2,25.8,23.4,21.3,19.4,17.7,16.3,15.1,14.3,13.8,13.7,13.8,14.3,15.2,16.3,17.7,19.4,21.3,23.5,25.8,28.2,30.7,33.3,35.9,38.5,41,43.4,45.7,47.7,49.6,51.2,52.5,53.5,54.2,54.6,54.7,54.4,53.9,53,51.8,50.4,48.7,46.8,44.7,42.4,40.1,37.7,35.3,32.9,30.5,28.3,26.2,24.2,22.5,21,19.9,19,18.4,18.1,18.2,18.6,19.3,20.3,21.7,23.3,25.2,27.3,29.6,32,34.6,37.2,39.9