| 満潮 | 干潮 | 満潮 | 干潮 |
|
18
(日) |
01:07 | 08:26 | 15:26 | 20:02 |
| 132cm | 19cm | 119cm | 82cm | |
|
||||
苫小牧（北海道）2008年05月18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 |
|---|---|---|---|
| 5/18 00:00 | 125.7 | ↑1.8 | |
| 5/18 00:10 | 127.3 | ↑1.6 | |
| 5/18 00:20 | 128.7 | ↑1.4 | |
| 5/18 00:30 | 129.8 | ↑1.1 | |
| 5/18 00:40 | 130.6 | ↑0.8 | |
| 5/18 00:50 | 131.2 | ↑0.6 | |
| 5/18 01:00 | 131.5 | ↑0.3 | 満潮 |
| 5/18 01:10 | 131.5 | 0 | |
| 5/18 01:20 | 131.3 | ↓-0.2 | |
| 5/18 01:30 | 130.8 | ↓-0.5 | |
| 5/18 01:40 | 130.0 | ↓-0.8 | |
| 5/18 01:50 | 129.0 | ↓-1.0 | |
| 5/18 02:00 | 127.8 | ↓-1.2 | |
| 5/18 02:10 | 126.3 | ↓-1.5 | |
| 5/18 02:20 | 124.6 | ↓-1.7 | |
| 5/18 02:30 | 122.7 | ↓-1.9 | |
| 5/18 02:40 | 120.6 | ↓-2.1 | |
| 5/18 02:50 | 118.3 | ↓-2.3 | |
| 5/18 03:00 | 115.8 | ↓-2.5 | |
| 5/18 03:10 | 113.1 | ↓-2.7 | |
| 5/18 03:20 | 110.2 | ↓-2.9 | |
| 5/18 03:30 | 107.2 | ↓-3.0 | |
| 5/18 03:40 | 104.0 | ↓-3.2 | |
| 5/18 03:50 | 100.6 | ↓-3.4 | |
| 5/18 04:00 | 97.0 | ↓-3.6 | |
| 5/18 04:10 | 93.3 | ↓-3.7 | |
| 5/18 04:20 | 89.4 | ↓-3.9 | |
| 5/18 04:30 | 85.5 | ↓-3.9 | |
| 5/18 04:40 | 81.4 | ↓-4.1 | |
| 5/18 04:50 | 77.2 | ↓-4.2 | |
| 5/18 05:00 | 73.0 | ↓-4.2 | |
| 5/18 05:10 | 68.7 | ↓-4.3 | 最大潮位差 |
| 5/18 05:20 | 64.4 | ↓-4.3 | 最大潮位差 |
| 5/18 05:30 | 60.2 | ↓-4.2 | |
| 5/18 05:40 | 56.1 | ↓-4.1 | |
| 5/18 05:50 | 52.0 | ↓-4.1 | |
| 5/18 06:00 | 48.1 | ↓-3.9 | |
| 5/18 06:10 | 44.3 | ↓-3.8 | |
| 5/18 06:20 | 40.7 | ↓-3.6 | |
| 5/18 06:30 | 37.4 | ↓-3.3 | |
| 5/18 06:40 | 34.3 | ↓-3.1 | |
| 5/18 06:50 | 31.4 | ↓-2.9 | |
| 5/18 07:00 | 28.8 | ↓-2.6 | |
| 5/18 07:10 | 26.6 | ↓-2.2 | |
| 5/18 07:20 | 24.6 | ↓-2.0 | |
| 5/18 07:30 | 22.8 | ↓-1.8 | |
| 5/18 07:40 | 21.4 | ↓-1.4 | |
| 5/18 07:50 | 20.3 | ↓-1.1 | |
| 5/18 08:00 | 19.5 | ↓-0.8 | |
| 5/18 08:10 | 18.9 | ↓-0.6 | |
| 5/18 08:20 | 18.7 | ↓-0.2 | 干潮 |
| 5/18 08:30 | 18.7 | 0 | |
| 5/18 08:40 | 18.9 | ↑0.2 | |
| 5/18 08:50 | 19.5 | ↑0.6 | |
| 5/18 09:00 | 20.3 | ↑0.8 | |
| 5/18 09:10 | 21.3 | ↑1.0 | |
| 5/18 09:20 | 22.7 | ↑1.4 | |
| 5/18 09:30 | 24.3 | ↑1.6 | |
| 5/18 09:40 | 26.1 | ↑1.8 | |
| 5/18 09:50 | 28.2 | ↑2.1 | |
| 5/18 10:00 | 30.6 | ↑2.4 | |
| 5/18 10:10 | 33.2 | ↑2.6 | |
| 5/18 10:20 | 36.0 | ↑2.8 | |
| 5/18 10:30 | 39.1 | ↑3.1 | |
| 5/18 10:40 | 42.4 | ↑3.3 | |
| 5/18 10:50 | 45.9 | ↑3.5 | |
| 5/18 11:00 | 49.6 | ↑3.7 | |
| 5/18 11:10 | 53.4 | ↑3.8 | |
| 5/18 11:20 | 57.3 | ↑3.9 | |
| 5/18 11:30 | 61.4 | ↑4.1 | |
| 5/18 11:40 | 65.4 | ↑4.0 | |
| 5/18 11:50 | 69.5 | ↑4.1 | |
| 5/18 12:00 | 73.5 | ↑4.0 | |
| 5/18 12:10 | 77.5 | ↑4.0 | |
| 5/18 12:20 | 81.5 | ↑4.0 | |
| 5/18 12:30 | 85.2 | ↑3.7 | |
| 5/18 12:40 | 88.9 | ↑3.7 | |
| 5/18 12:50 | 92.3 | ↑3.4 | |
| 5/18 13:00 | 95.6 | ↑3.3 | |
| 5/18 13:10 | 98.7 | ↑3.1 | |
| 5/18 13:20 | 101.5 | ↑2.8 | |
| 5/18 13:30 | 104.1 | ↑2.6 | |
| 5/18 13:40 | 106.5 | ↑2.4 | |
| 5/18 13:50 | 108.6 | ↑2.1 | |
| 5/18 14:00 | 110.5 | ↑1.9 | |
| 5/18 14:10 | 112.2 | ↑1.7 | |
| 5/18 14:20 | 113.7 | ↑1.5 | |
| 5/18 14:30 | 115.0 | ↑1.3 | |
| 5/18 14:40 | 116.0 | ↑1.0 | |
| 5/18 14:50 | 116.8 | ↑0.8 | |
| 5/18 15:00 | 117.5 | ↑0.7 | |
| 5/18 15:10 | 117.9 | ↑0.4 | |
| 5/18 15:20 | 118.1 | ↑0.2 | 満潮 |
| 5/18 15:30 | 118.1 | 0 | |
| 5/18 15:40 | 117.9 | ↓-0.2 | |
| 5/18 15:50 | 117.5 | ↓-0.4 | |
| 5/18 16:00 | 116.9 | ↓-0.6 | |
| 5/18 16:10 | 116.1 | ↓-0.8 | |
| 5/18 16:20 | 115.0 | ↓-1.1 | |
| 5/18 16:30 | 113.8 | ↓-1.2 | |
| 5/18 16:40 | 112.3 | ↓-1.5 | |
| 5/18 16:50 | 110.7 | ↓-1.6 | |
| 5/18 17:00 | 109.0 | ↓-1.7 | |
| 5/18 17:10 | 107.1 | ↓-1.9 | |
| 5/18 17:20 | 105.0 | ↓-2.1 | |
| 5/18 17:30 | 102.9 | ↓-2.1 | |
| 5/18 17:40 | 100.7 | ↓-2.2 | |
| 5/18 17:50 | 98.5 | ↓-2.2 | |
| 5/18 18:00 | 96.3 | ↓-2.2 | |
| 5/18 18:10 | 94.2 | ↓-2.1 | |
| 5/18 18:20 | 92.1 | ↓-2.1 | |
| 5/18 18:30 | 90.2 | ↓-1.9 | |
| 5/18 18:40 | 88.4 | ↓-1.8 | |
| 5/18 18:50 | 86.8 | ↓-1.6 | |
| 5/18 19:00 | 85.3 | ↓-1.5 | |
| 5/18 19:10 | 84.1 | ↓-1.2 | |
| 5/18 19:20 | 83.0 | ↓-1.1 | |
| 5/18 19:30 | 82.2 | ↓-0.8 | |
| 5/18 19:40 | 81.6 | ↓-0.6 | |
| 5/18 19:50 | 81.3 | ↓-0.3 | |
| 5/18 20:00 | 81.2 | ↓-0.1 | 干潮 |
| 5/18 20:10 | 81.3 | ↑0.1 | |
| 5/18 20:20 | 81.5 | ↑0.2 | |
| 5/18 20:30 | 82.0 | ↑0.5 | |
| 5/18 20:40 | 82.7 | ↑0.7 | |
| 5/18 20:50 | 83.5 | ↑0.8 | |
| 5/18 21:00 | 84.5 | ↑1.0 | |
| 5/18 21:10 | 85.7 | ↑1.2 | |
| 5/18 21:20 | 87.0 | ↑1.3 | |
| 5/18 21:30 | 88.5 | ↑1.5 | |
| 5/18 21:40 | 90.1 | ↑1.6 | |
| 5/18 21:50 | 91.8 | ↑1.7 | |
| 5/18 22:00 | 93.6 | ↑1.8 | |
| 5/18 22:10 | 95.6 | ↑2.0 | |
| 5/18 22:20 | 97.8 | ↑2.2 | |
| 5/18 22:30 | 100.0 | ↑2.2 | |
| 5/18 22:40 | 102.3 | ↑2.3 | |
| 5/18 22:50 | 104.8 | ↑2.5 | |
| 5/18 23:00 | 107.3 | ↑2.5 | |
| 5/18 23:10 | 109.9 | ↑2.6 | |
| 5/18 23:20 | 112.5 | ↑2.6 | |
| 5/18 23:30 | 115.2 | ↑2.7 | |
| 5/18 23:40 | 117.8 | ↑2.6 | |
| 5/18 23:50 | 120.3 | ↑2.5 |