| 満潮 | 干潮 | 満潮 | 干潮 |
|
20
(日) |
05:19 | 12:43 | 20:15 | - |
| 138cm | 10cm | 113cm | - | |
|
||||
苫小牧（北海道）2018年05月20日の10分毎の潮の高低差を確認できます。
また1日の潮の高低差が1番大きい（潮の流れが大きい）時間に「最大潮位差」と明記してます。
| 時刻 | 潮位 | 高低差 | 各ポイント |
|---|---|---|---|
| 5/20 00:00 | 88.5 | ↑0.4 | |
| 5/20 00:10 | 89.0 | ↑0.5 | |
| 5/20 00:20 | 89.8 | ↑0.8 | |
| 5/20 00:30 | 90.7 | ↑0.9 | |
| 5/20 00:40 | 91.7 | ↑1.0 | |
| 5/20 00:50 | 92.9 | ↑1.2 | |
| 5/20 01:00 | 94.2 | ↑1.3 | |
| 5/20 01:10 | 95.6 | ↑1.4 | |
| 5/20 01:20 | 97.1 | ↑1.5 | |
| 5/20 01:30 | 98.6 | ↑1.5 | |
| 5/20 01:40 | 100.2 | ↑1.6 | |
| 5/20 01:50 | 101.8 | ↑1.6 | |
| 5/20 02:00 | 103.5 | ↑1.7 | |
| 5/20 02:10 | 105.3 | ↑1.8 | |
| 5/20 02:20 | 107.1 | ↑1.8 | |
| 5/20 02:30 | 109.0 | ↑1.9 | |
| 5/20 02:40 | 111.0 | ↑2.0 | |
| 5/20 02:50 | 113.0 | ↑2.0 | |
| 5/20 03:00 | 115.1 | ↑2.1 | |
| 5/20 03:10 | 117.3 | ↑2.2 | |
| 5/20 03:20 | 119.4 | ↑2.1 | |
| 5/20 03:30 | 121.6 | ↑2.2 | |
| 5/20 03:40 | 123.8 | ↑2.2 | |
| 5/20 03:50 | 125.9 | ↑2.1 | |
| 5/20 04:00 | 128.0 | ↑2.1 | |
| 5/20 04:10 | 129.9 | ↑1.9 | |
| 5/20 04:20 | 131.7 | ↑1.8 | |
| 5/20 04:30 | 133.3 | ↑1.6 | |
| 5/20 04:40 | 134.7 | ↑1.4 | |
| 5/20 04:50 | 135.7 | ↑1.0 | |
| 5/20 05:00 | 136.5 | ↑0.8 | |
| 5/20 05:10 | 137.0 | ↑0.5 | 満潮 |
| 5/20 05:20 | 137.1 | ↑0.1 | |
| 5/20 05:30 | 136.9 | ↓-0.2 | |
| 5/20 05:40 | 136.3 | ↓-0.6 | |
| 5/20 05:50 | 135.3 | ↓-1.0 | |
| 5/20 06:00 | 134.0 | ↓-1.3 | |
| 5/20 06:10 | 132.4 | ↓-1.6 | |
| 5/20 06:20 | 130.5 | ↓-1.9 | |
| 5/20 06:30 | 128.3 | ↓-2.2 | |
| 5/20 06:40 | 125.8 | ↓-2.5 | |
| 5/20 06:50 | 123.1 | ↓-2.7 | |
| 5/20 07:00 | 120.2 | ↓-2.9 | |
| 5/20 07:10 | 117.1 | ↓-3.1 | |
| 5/20 07:20 | 113.9 | ↓-3.2 | |
| 5/20 07:30 | 110.6 | ↓-3.3 | |
| 5/20 07:40 | 107.1 | ↓-3.5 | |
| 5/20 07:50 | 103.5 | ↓-3.6 | |
| 5/20 08:00 | 99.9 | ↓-3.6 | |
| 5/20 08:10 | 96.1 | ↓-3.8 | |
| 5/20 08:20 | 92.3 | ↓-3.8 | |
| 5/20 08:30 | 88.4 | ↓-3.9 | |
| 5/20 08:40 | 84.4 | ↓-4.0 | |
| 5/20 08:50 | 80.4 | ↓-4.0 | |
| 5/20 09:00 | 76.2 | ↓-4.2 | |
| 5/20 09:10 | 72.0 | ↓-4.2 | |
| 5/20 09:20 | 67.7 | ↓-4.3 | |
| 5/20 09:30 | 63.4 | ↓-4.3 | |
| 5/20 09:40 | 59.0 | ↓-4.4 | 最大潮位差 |
| 5/20 09:50 | 54.6 | ↓-4.4 | 最大潮位差 |
| 5/20 10:00 | 50.3 | ↓-4.3 | |
| 5/20 10:10 | 46.0 | ↓-4.3 | |
| 5/20 10:20 | 41.8 | ↓-4.2 | |
| 5/20 10:30 | 37.7 | ↓-4.1 | |
| 5/20 10:40 | 33.8 | ↓-3.9 | |
| 5/20 10:50 | 30.0 | ↓-3.8 | |
| 5/20 11:00 | 26.6 | ↓-3.4 | |
| 5/20 11:10 | 23.3 | ↓-3.3 | |
| 5/20 11:20 | 20.4 | ↓-2.9 | |
| 5/20 11:30 | 17.8 | ↓-2.6 | |
| 5/20 11:40 | 15.6 | ↓-2.2 | |
| 5/20 11:50 | 13.7 | ↓-1.9 | |
| 5/20 12:00 | 12.1 | ↓-1.6 | |
| 5/20 12:10 | 10.9 | ↓-1.2 | |
| 5/20 12:20 | 10.0 | ↓-0.9 | |
| 5/20 12:30 | 9.5 | ↓-0.5 | |
| 5/20 12:40 | 9.3 | ↓-0.2 | 干潮 |
| 5/20 12:50 | 9.3 | 0 | |
| 5/20 13:00 | 9.7 | ↑0.4 | |
| 5/20 13:10 | 10.3 | ↑0.6 | |
| 5/20 13:20 | 11.2 | ↑0.9 | |
| 5/20 13:30 | 12.3 | ↑1.1 | |
| 5/20 13:40 | 13.7 | ↑1.4 | |
| 5/20 13:50 | 15.2 | ↑1.5 | |
| 5/20 14:00 | 17.0 | ↑1.8 | |
| 5/20 14:10 | 19.0 | ↑2.0 | |
| 5/20 14:20 | 21.1 | ↑2.1 | |
| 5/20 14:30 | 23.5 | ↑2.4 | |
| 5/20 14:40 | 26.1 | ↑2.6 | |
| 5/20 14:50 | 28.9 | ↑2.8 | |
| 5/20 15:00 | 32.0 | ↑3.1 | |
| 5/20 15:10 | 35.2 | ↑3.2 | |
| 5/20 15:20 | 38.6 | ↑3.4 | |
| 5/20 15:30 | 42.3 | ↑3.7 | |
| 5/20 15:40 | 46.1 | ↑3.8 | |
| 5/20 15:50 | 50.0 | ↑3.9 | |
| 5/20 16:00 | 54.1 | ↑4.1 | |
| 5/20 16:10 | 58.3 | ↑4.2 | |
| 5/20 16:20 | 62.5 | ↑4.2 | |
| 5/20 16:30 | 66.7 | ↑4.2 | |
| 5/20 16:40 | 70.9 | ↑4.2 | |
| 5/20 16:50 | 75.1 | ↑4.2 | |
| 5/20 17:00 | 79.1 | ↑4.0 | |
| 5/20 17:10 | 82.9 | ↑3.8 | |
| 5/20 17:20 | 86.6 | ↑3.7 | |
| 5/20 17:30 | 90.1 | ↑3.5 | |
| 5/20 17:40 | 93.3 | ↑3.2 | |
| 5/20 17:50 | 96.3 | ↑3.0 | |
| 5/20 18:00 | 98.9 | ↑2.6 | |
| 5/20 18:10 | 101.3 | ↑2.4 | |
| 5/20 18:20 | 103.5 | ↑2.2 | |
| 5/20 18:30 | 105.3 | ↑1.8 | |
| 5/20 18:40 | 107.0 | ↑1.7 | |
| 5/20 18:50 | 108.3 | ↑1.3 | |
| 5/20 19:00 | 109.5 | ↑1.2 | |
| 5/20 19:10 | 110.4 | ↑0.9 | |
| 5/20 19:20 | 111.2 | ↑0.8 | |
| 5/20 19:30 | 111.8 | ↑0.6 | |
| 5/20 19:40 | 112.3 | ↑0.5 | |
| 5/20 19:50 | 112.6 | ↑0.3 | |
| 5/20 20:00 | 112.8 | ↑0.2 | |
| 5/20 20:10 | 112.9 | ↑0.1 | 満潮 |
| 5/20 20:20 | 112.9 | 0 | |
| 5/20 20:30 | 112.8 | ↓-0.1 | |
| 5/20 20:40 | 112.5 | ↓-0.3 | |
| 5/20 20:50 | 112.2 | ↓-0.3 | |
| 5/20 21:00 | 111.7 | ↓-0.5 | |
| 5/20 21:10 | 111.1 | ↓-0.6 | |
| 5/20 21:20 | 110.3 | ↓-0.8 | |
| 5/20 21:30 | 109.4 | ↓-0.9 | |
| 5/20 21:40 | 108.4 | ↓-1.0 | |
| 5/20 21:50 | 107.3 | ↓-1.1 | |
| 5/20 22:00 | 106.0 | ↓-1.3 | |
| 5/20 22:10 | 104.7 | ↓-1.3 | |
| 5/20 22:20 | 103.2 | ↓-1.5 | |
| 5/20 22:30 | 101.8 | ↓-1.4 | |
| 5/20 22:40 | 100.3 | ↓-1.5 | |
| 5/20 22:50 | 98.8 | ↓-1.5 | |
| 5/20 23:00 | 97.4 | ↓-1.4 | |
| 5/20 23:10 | 96.0 | ↓-1.4 | |
| 5/20 23:20 | 94.7 | ↓-1.3 | |
| 5/20 23:30 | 93.6 | ↓-1.1 | |
| 5/20 23:40 | 92.6 | ↓-1.0 | |
| 5/20 23:50 | 91.8 | ↓-0.8 |