| 満潮 | 干潮 | 満潮 | 干潮 |
|
21
(月) |
02:24 | 09:35 | 16:38 | 21:20 |
| 137cm | 9cm | 123cm | 84cm | |
|
||||
苫小牧（北海道）2012年05月21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 |
|---|---|---|---|
| 5/21 00:00 | 110.4 | ↑2.5 | |
| 5/21 00:10 | 113.0 | ↑2.6 | |
| 5/21 00:20 | 115.7 | ↑2.7 | |
| 5/21 00:30 | 118.3 | ↑2.6 | |
| 5/21 00:40 | 120.9 | ↑2.6 | |
| 5/21 00:50 | 123.5 | ↑2.6 | |
| 5/21 01:00 | 125.9 | ↑2.4 | |
| 5/21 01:10 | 128.1 | ↑2.2 | |
| 5/21 01:20 | 130.2 | ↑2.1 | |
| 5/21 01:30 | 132.0 | ↑1.8 | |
| 5/21 01:40 | 133.6 | ↑1.6 | |
| 5/21 01:50 | 134.8 | ↑1.2 | |
| 5/21 02:00 | 135.8 | ↑1.0 | |
| 5/21 02:10 | 136.4 | ↑0.6 | |
| 5/21 02:20 | 136.7 | ↑0.3 | 満潮 |
| 5/21 02:30 | 136.6 | ↓-0.1 | |
| 5/21 02:40 | 136.3 | ↓-0.3 | |
| 5/21 02:50 | 135.6 | ↓-0.7 | |
| 5/21 03:00 | 134.5 | ↓-1.1 | |
| 5/21 03:10 | 133.2 | ↓-1.3 | |
| 5/21 03:20 | 131.6 | ↓-1.6 | |
| 5/21 03:30 | 129.8 | ↓-1.8 | |
| 5/21 03:40 | 127.7 | ↓-2.1 | |
| 5/21 03:50 | 125.4 | ↓-2.3 | |
| 5/21 04:00 | 122.9 | ↓-2.5 | |
| 5/21 04:10 | 120.3 | ↓-2.6 | |
| 5/21 04:20 | 117.4 | ↓-2.9 | |
| 5/21 04:30 | 114.3 | ↓-3.1 | |
| 5/21 04:40 | 111.1 | ↓-3.2 | |
| 5/21 04:50 | 107.7 | ↓-3.4 | |
| 5/21 05:00 | 104.1 | ↓-3.6 | |
| 5/21 05:10 | 100.4 | ↓-3.7 | |
| 5/21 05:20 | 96.5 | ↓-3.9 | |
| 5/21 05:30 | 92.3 | ↓-4.2 | |
| 5/21 05:40 | 88.1 | ↓-4.2 | |
| 5/21 05:50 | 83.6 | ↓-4.5 | |
| 5/21 06:00 | 79.0 | ↓-4.6 | |
| 5/21 06:10 | 74.3 | ↓-4.7 | |
| 5/21 06:20 | 69.5 | ↓-4.8 | |
| 5/21 06:30 | 64.7 | ↓-4.8 | |
| 5/21 06:40 | 59.8 | ↓-4.9 | 最大潮位差 |
| 5/21 06:50 | 54.9 | ↓-4.9 | 最大潮位差 |
| 5/21 07:00 | 50.0 | ↓-4.9 | 最大潮位差 |
| 5/21 07:10 | 45.3 | ↓-4.7 | |
| 5/21 07:20 | 40.7 | ↓-4.6 | |
| 5/21 07:30 | 36.3 | ↓-4.4 | |
| 5/21 07:40 | 32.2 | ↓-4.1 | |
| 5/21 07:50 | 28.3 | ↓-3.9 | |
| 5/21 08:00 | 24.7 | ↓-3.6 | |
| 5/21 08:10 | 21.5 | ↓-3.2 | |
| 5/21 08:20 | 18.6 | ↓-2.9 | |
| 5/21 08:30 | 16.0 | ↓-2.6 | |
| 5/21 08:40 | 13.9 | ↓-2.1 | |
| 5/21 08:50 | 12.2 | ↓-1.7 | |
| 5/21 09:00 | 10.8 | ↓-1.4 | |
| 5/21 09:10 | 9.8 | ↓-1.0 | |
| 5/21 09:20 | 9.1 | ↓-0.7 | |
| 5/21 09:30 | 8.8 | ↓-0.3 | 干潮 |
| 5/21 09:40 | 8.8 | 0 | |
| 5/21 09:50 | 9.1 | ↑0.3 | |
| 5/21 10:00 | 9.8 | ↑0.7 | |
| 5/21 10:10 | 10.7 | ↑0.9 | |
| 5/21 10:20 | 11.9 | ↑1.2 | |
| 5/21 10:30 | 13.4 | ↑1.5 | |
| 5/21 10:40 | 15.1 | ↑1.7 | |
| 5/21 10:50 | 17.2 | ↑2.1 | |
| 5/21 11:00 | 19.5 | ↑2.3 | |
| 5/21 11:10 | 22.0 | ↑2.5 | |
| 5/21 11:20 | 24.9 | ↑2.9 | |
| 5/21 11:30 | 28.0 | ↑3.1 | |
| 5/21 11:40 | 31.4 | ↑3.4 | |
| 5/21 11:50 | 35.0 | ↑3.6 | |
| 5/21 12:00 | 38.9 | ↑3.9 | |
| 5/21 12:10 | 43.1 | ↑4.2 | |
| 5/21 12:20 | 47.4 | ↑4.3 | |
| 5/21 12:30 | 51.9 | ↑4.5 | |
| 5/21 12:40 | 56.6 | ↑4.7 | |
| 5/21 12:50 | 61.4 | ↑4.8 | |
| 5/21 13:00 | 66.2 | ↑4.8 | |
| 5/21 13:10 | 71.0 | ↑4.8 | |
| 5/21 13:20 | 75.8 | ↑4.8 | |
| 5/21 13:30 | 80.6 | ↑4.8 | |
| 5/21 13:40 | 85.2 | ↑4.6 | |
| 5/21 13:50 | 89.6 | ↑4.4 | |
| 5/21 14:00 | 93.8 | ↑4.2 | |
| 5/21 14:10 | 97.7 | ↑3.9 | |
| 5/21 14:20 | 101.4 | ↑3.7 | |
| 5/21 14:30 | 104.8 | ↑3.4 | |
| 5/21 14:40 | 107.8 | ↑3.0 | |
| 5/21 14:50 | 110.6 | ↑2.8 | |
| 5/21 15:00 | 113.0 | ↑2.4 | |
| 5/21 15:10 | 115.2 | ↑2.2 | |
| 5/21 15:20 | 117.0 | ↑1.8 | |
| 5/21 15:30 | 118.5 | ↑1.5 | |
| 5/21 15:40 | 119.8 | ↑1.3 | |
| 5/21 15:50 | 120.9 | ↑1.1 | |
| 5/21 16:00 | 121.7 | ↑0.8 | |
| 5/21 16:10 | 122.3 | ↑0.6 | |
| 5/21 16:20 | 122.7 | ↑0.4 | |
| 5/21 16:30 | 122.9 | ↑0.2 | 満潮 |
| 5/21 16:40 | 123.0 | ↑0.1 | |
| 5/21 16:50 | 122.8 | ↓-0.2 | |
| 5/21 17:00 | 122.5 | ↓-0.3 | |
| 5/21 17:10 | 122.0 | ↓-0.5 | |
| 5/21 17:20 | 121.3 | ↓-0.7 | |
| 5/21 17:30 | 120.5 | ↓-0.8 | |
| 5/21 17:40 | 119.4 | ↓-1.1 | |
| 5/21 17:50 | 118.2 | ↓-1.2 | |
| 5/21 18:00 | 116.7 | ↓-1.5 | |
| 5/21 18:10 | 115.1 | ↓-1.6 | |
| 5/21 18:20 | 113.3 | ↓-1.8 | |
| 5/21 18:30 | 111.3 | ↓-2.0 | |
| 5/21 18:40 | 109.2 | ↓-2.1 | |
| 5/21 18:50 | 107.0 | ↓-2.2 | |
| 5/21 19:00 | 104.7 | ↓-2.3 | |
| 5/21 19:10 | 102.4 | ↓-2.3 | |
| 5/21 19:20 | 100.0 | ↓-2.4 | |
| 5/21 19:30 | 97.7 | ↓-2.3 | |
| 5/21 19:40 | 95.4 | ↓-2.3 | |
| 5/21 19:50 | 93.3 | ↓-2.1 | |
| 5/21 20:00 | 91.3 | ↓-2.0 | |
| 5/21 20:10 | 89.5 | ↓-1.8 | |
| 5/21 20:20 | 87.9 | ↓-1.6 | |
| 5/21 20:30 | 86.6 | ↓-1.3 | |
| 5/21 20:40 | 85.4 | ↓-1.2 | |
| 5/21 20:50 | 84.6 | ↓-0.8 | |
| 5/21 21:00 | 84.0 | ↓-0.6 | |
| 5/21 21:10 | 83.6 | ↓-0.4 | 干潮 |
| 5/21 21:20 | 83.5 | ↓-0.1 | 干潮 |
| 5/21 21:30 | 83.7 | ↑0.2 | |
| 5/21 21:40 | 84.0 | ↑0.3 | |
| 5/21 21:50 | 84.6 | ↑0.6 | |
| 5/21 22:00 | 85.3 | ↑0.7 | |
| 5/21 22:10 | 86.2 | ↑0.9 | |
| 5/21 22:20 | 87.2 | ↑1.0 | |
| 5/21 22:30 | 88.3 | ↑1.1 | |
| 5/21 22:40 | 89.5 | ↑1.2 | |
| 5/21 22:50 | 90.9 | ↑1.4 | |
| 5/21 23:00 | 92.4 | ↑1.5 | |
| 5/21 23:10 | 93.9 | ↑1.5 | |
| 5/21 23:20 | 95.6 | ↑1.7 | |
| 5/21 23:30 | 97.4 | ↑1.8 | |
| 5/21 23:40 | 99.3 | ↑1.9 | |
| 5/21 23:50 | 101.3 | ↑2.0 |