北海道:函館の 潮汐 2026年07月20日(月) 潮時(分),0,20,40,60,80,100,120,140,160,180,200,220,240,260,280,300,320,340,360,380,400,420,440,460,480,500,520,540,560,580,600,620,640,660,680,700,720,740,760,780,800,820,840,860,880,900,920,940,960,980,1000,1020,1040,1060,1080,1100,1120,1140,1160,1180,1200,1220,1240,1260,1280,1300,1320,1340,1360,1380,1400,1420,1440 潮位(p),45.4,42.6,40.6,39.4,39,39.4,40.6,42.4,44.9,47.9,51.4,55.2,59.2,63.3,67.4,71.3,75,78.3,81,83.2,84.8,85.7,85.8,85.4,84.2,82.5,80.2,77.4,74.1,70.5,66.6,62.4,58.1,53.9,49.8,45.9,42.5,39.7,37.5,36.1,35.6,35.8,37,38.8,41.4,44.7,48.4,52.6,57.1,61.8,66.6,71.3,75.9,80.2,84,87.4,90.1,92.1,93.4,93.9,93.6,92.6,91,88.7,85.8,82.4,78.7,74.5,70.1,65.5,60.9,56.4,52.1