| 満潮 | 干潮 | 満潮 | 干潮 |
|
21
(月) |
03:44 | 10:57 | 18:26 | 22:49 |
| 149cm | -7cm | 124cm | 90cm | |
|
||||
苫小牧（北海道）2057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 | 97.4 | ↑2.0 | |
| 5/21 00:10 | 99.6 | ↑2.2 | |
| 5/21 00:20 | 101.8 | ↑2.2 | |
| 5/21 00:30 | 104.2 | ↑2.4 | |
| 5/21 00:40 | 106.7 | ↑2.5 | |
| 5/21 00:50 | 109.3 | ↑2.6 | |
| 5/21 01:00 | 112.0 | ↑2.7 | |
| 5/21 01:10 | 114.8 | ↑2.8 | |
| 5/21 01:20 | 117.7 | ↑2.9 | |
| 5/21 01:30 | 120.6 | ↑2.9 | |
| 5/21 01:40 | 123.6 | ↑3.0 | |
| 5/21 01:50 | 126.7 | ↑3.1 | |
| 5/21 02:00 | 129.7 | ↑3.0 | |
| 5/21 02:10 | 132.6 | ↑2.9 | |
| 5/21 02:20 | 135.4 | ↑2.8 | |
| 5/21 02:30 | 138.1 | ↑2.7 | |
| 5/21 02:40 | 140.6 | ↑2.5 | |
| 5/21 02:50 | 142.8 | ↑2.2 | |
| 5/21 03:00 | 144.7 | ↑1.9 | |
| 5/21 03:10 | 146.3 | ↑1.6 | |
| 5/21 03:20 | 147.5 | ↑1.2 | |
| 5/21 03:30 | 148.3 | ↑0.8 | |
| 5/21 03:40 | 148.6 | ↑0.3 | 満潮 |
| 5/21 03:50 | 148.6 | 0 | |
| 5/21 04:00 | 148.0 | ↓-0.6 | |
| 5/21 04:10 | 147.1 | ↓-0.9 | |
| 5/21 04:20 | 145.7 | ↓-1.4 | |
| 5/21 04:30 | 143.9 | ↓-1.8 | |
| 5/21 04:40 | 141.7 | ↓-2.2 | |
| 5/21 04:50 | 139.2 | ↓-2.5 | |
| 5/21 05:00 | 136.3 | ↓-2.9 | |
| 5/21 05:10 | 133.1 | ↓-3.2 | |
| 5/21 05:20 | 129.6 | ↓-3.5 | |
| 5/21 05:30 | 125.9 | ↓-3.7 | |
| 5/21 05:40 | 122.0 | ↓-3.9 | |
| 5/21 05:50 | 117.9 | ↓-4.1 | |
| 5/21 06:00 | 113.6 | ↓-4.3 | |
| 5/21 06:10 | 109.2 | ↓-4.4 | |
| 5/21 06:20 | 104.6 | ↓-4.6 | |
| 5/21 06:30 | 99.8 | ↓-4.8 | |
| 5/21 06:40 | 95.0 | ↓-4.8 | |
| 5/21 06:50 | 90.0 | ↓-5.0 | |
| 5/21 07:00 | 84.8 | ↓-5.2 | |
| 5/21 07:10 | 79.6 | ↓-5.2 | |
| 5/21 07:20 | 74.3 | ↓-5.3 | |
| 5/21 07:30 | 68.8 | ↓-5.5 | |
| 5/21 07:40 | 63.3 | ↓-5.5 | |
| 5/21 07:50 | 57.8 | ↓-5.5 | |
| 5/21 08:00 | 52.2 | ↓-5.6 | 最大潮位差 |
| 5/21 08:10 | 46.6 | ↓-5.6 | 最大潮位差 |
| 5/21 08:20 | 41.1 | ↓-5.5 | |
| 5/21 08:30 | 35.7 | ↓-5.4 | |
| 5/21 08:40 | 30.5 | ↓-5.2 | |
| 5/21 08:50 | 25.4 | ↓-5.1 | |
| 5/21 09:00 | 20.6 | ↓-4.8 | |
| 5/21 09:10 | 16.1 | ↓-4.5 | |
| 5/21 09:20 | 11.9 | ↓-4.2 | |
| 5/21 09:30 | 8.0 | ↓-3.9 | |
| 5/21 09:40 | 4.5 | ↓-3.5 | |
| 5/21 09:50 | 1.5 | ↓-3.0 | |
| 5/21 10:00 | -1.1 | ↓-2.6 | |
| 5/21 10:10 | -3.2 | ↓-2.1 | |
| 5/21 10:20 | -5.0 | ↓-1.8 | |
| 5/21 10:30 | -6.2 | ↓-1.2 | |
| 5/21 10:40 | -7.1 | ↓-0.9 | |
| 5/21 10:50 | -7.5 | ↓-0.4 | 干潮 |
| 5/21 11:00 | -7.5 | 0 | |
| 5/21 11:10 | -7.2 | ↑0.3 | |
| 5/21 11:20 | -6.5 | ↑0.7 | |
| 5/21 11:30 | -5.5 | ↑1.0 | |
| 5/21 11:40 | -4.1 | ↑1.4 | |
| 5/21 11:50 | -2.5 | ↑1.6 | |
| 5/21 12:00 | -0.6 | ↑1.9 | |
| 5/21 12:10 | 1.6 | ↑2.2 | |
| 5/21 12:20 | 4.0 | ↑2.4 | |
| 5/21 12:30 | 6.7 | ↑2.7 | |
| 5/21 12:40 | 9.6 | ↑2.9 | |
| 5/21 12:50 | 12.8 | ↑3.2 | |
| 5/21 13:00 | 16.3 | ↑3.5 | |
| 5/21 13:10 | 20.0 | ↑3.7 | |
| 5/21 13:20 | 23.9 | ↑3.9 | |
| 5/21 13:30 | 28.1 | ↑4.2 | |
| 5/21 13:40 | 32.6 | ↑4.5 | |
| 5/21 13:50 | 37.2 | ↑4.6 | |
| 5/21 14:00 | 42.1 | ↑4.9 | |
| 5/21 14:10 | 47.1 | ↑5.0 | |
| 5/21 14:20 | 52.2 | ↑5.1 | |
| 5/21 14:30 | 57.4 | ↑5.2 | |
| 5/21 14:40 | 62.6 | ↑5.2 | |
| 5/21 14:50 | 67.9 | ↑5.3 | |
| 5/21 15:00 | 73.1 | ↑5.2 | |
| 5/21 15:10 | 78.1 | ↑5.0 | |
| 5/21 15:20 | 83.0 | ↑4.9 | |
| 5/21 15:30 | 87.8 | ↑4.8 | |
| 5/21 15:40 | 92.2 | ↑4.4 | |
| 5/21 15:50 | 96.4 | ↑4.2 | |
| 5/21 16:00 | 100.3 | ↑3.9 | |
| 5/21 16:10 | 103.9 | ↑3.6 | |
| 5/21 16:20 | 107.2 | ↑3.3 | |
| 5/21 16:30 | 110.1 | ↑2.9 | |
| 5/21 16:40 | 112.6 | ↑2.5 | |
| 5/21 16:50 | 114.9 | ↑2.3 | |
| 5/21 17:00 | 116.8 | ↑1.9 | |
| 5/21 17:10 | 118.5 | ↑1.7 | |
| 5/21 17:20 | 119.9 | ↑1.4 | |
| 5/21 17:30 | 121.0 | ↑1.1 | |
| 5/21 17:40 | 122.0 | ↑1.0 | |
| 5/21 17:50 | 122.7 | ↑0.7 | |
| 5/21 18:00 | 123.2 | ↑0.5 | |
| 5/21 18:10 | 123.5 | ↑0.3 | |
| 5/21 18:20 | 123.7 | ↑0.2 | 満潮 |
| 5/21 18:30 | 123.7 | 0 | |
| 5/21 18:40 | 123.5 | ↓-0.2 | |
| 5/21 18:50 | 123.1 | ↓-0.4 | |
| 5/21 19:00 | 122.6 | ↓-0.5 | |
| 5/21 19:10 | 121.9 | ↓-0.7 | |
| 5/21 19:20 | 121.0 | ↓-0.9 | |
| 5/21 19:30 | 119.9 | ↓-1.1 | |
| 5/21 19:40 | 118.7 | ↓-1.2 | |
| 5/21 19:50 | 117.2 | ↓-1.5 | |
| 5/21 20:00 | 115.6 | ↓-1.6 | |
| 5/21 20:10 | 113.8 | ↓-1.8 | |
| 5/21 20:20 | 111.8 | ↓-2.0 | |
| 5/21 20:30 | 109.8 | ↓-2.0 | |
| 5/21 20:40 | 107.7 | ↓-2.1 | |
| 5/21 20:50 | 105.5 | ↓-2.2 | |
| 5/21 21:00 | 103.3 | ↓-2.2 | |
| 5/21 21:10 | 101.1 | ↓-2.2 | |
| 5/21 21:20 | 99.0 | ↓-2.1 | |
| 5/21 21:30 | 97.1 | ↓-1.9 | |
| 5/21 21:40 | 95.3 | ↓-1.8 | |
| 5/21 21:50 | 93.7 | ↓-1.6 | |
| 5/21 22:00 | 92.3 | ↓-1.4 | |
| 5/21 22:10 | 91.1 | ↓-1.2 | |
| 5/21 22:20 | 90.2 | ↓-0.9 | |
| 5/21 22:30 | 89.6 | ↓-0.6 | |
| 5/21 22:40 | 89.3 | ↓-0.3 | 干潮 |
| 5/21 22:50 | 89.2 | ↓-0.1 | |
| 5/21 23:00 | 89.4 | ↑0.2 | |
| 5/21 23:10 | 89.8 | ↑0.4 | |
| 5/21 23:20 | 90.5 | ↑0.7 | |
| 5/21 23:30 | 91.3 | ↑0.8 | |
| 5/21 23:40 | 92.4 | ↑1.1 | |
| 5/21 23:50 | 93.6 | ↑1.2 |