| 満潮 | 干潮 | 満潮 | 干潮 |
|
21
(日) |
00:24 | 07:31 | 14:16 | 19:06 |
| 121cm | 34cm | 111cm | 80cm | |
|
||||
苫小牧（北海道）2028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 | 120.3 | ↑0.6 | |
| 5/21 00:10 | 120.7 | ↑0.4 | |
| 5/21 00:20 | 120.8 | ↑0.1 | 満潮 |
| 5/21 00:30 | 120.8 | 0 | |
| 5/21 00:40 | 120.5 | ↓-0.3 | |
| 5/21 00:50 | 120.1 | ↓-0.4 | |
| 5/21 01:00 | 119.4 | ↓-0.7 | |
| 5/21 01:10 | 118.6 | ↓-0.8 | |
| 5/21 01:20 | 117.6 | ↓-1.0 | |
| 5/21 01:30 | 116.3 | ↓-1.3 | |
| 5/21 01:40 | 115.0 | ↓-1.3 | |
| 5/21 01:50 | 113.4 | ↓-1.6 | |
| 5/21 02:00 | 111.7 | ↓-1.7 | |
| 5/21 02:10 | 109.8 | ↓-1.9 | |
| 5/21 02:20 | 107.8 | ↓-2.0 | |
| 5/21 02:30 | 105.6 | ↓-2.2 | |
| 5/21 02:40 | 103.3 | ↓-2.3 | |
| 5/21 02:50 | 100.9 | ↓-2.4 | |
| 5/21 03:00 | 98.3 | ↓-2.6 | |
| 5/21 03:10 | 95.6 | ↓-2.7 | |
| 5/21 03:20 | 92.8 | ↓-2.8 | |
| 5/21 03:30 | 89.8 | ↓-3.0 | |
| 5/21 03:40 | 86.7 | ↓-3.1 | |
| 5/21 03:50 | 83.6 | ↓-3.1 | |
| 5/21 04:00 | 80.4 | ↓-3.2 | |
| 5/21 04:10 | 77.1 | ↓-3.3 | |
| 5/21 04:20 | 73.7 | ↓-3.4 | 最大潮位差 |
| 5/21 04:30 | 70.4 | ↓-3.3 | |
| 5/21 04:40 | 67.0 | ↓-3.4 | 最大潮位差 |
| 5/21 04:50 | 63.7 | ↓-3.3 | |
| 5/21 05:00 | 60.5 | ↓-3.2 | |
| 5/21 05:10 | 57.3 | ↓-3.2 | |
| 5/21 05:20 | 54.3 | ↓-3.0 | |
| 5/21 05:30 | 51.3 | ↓-3.0 | |
| 5/21 05:40 | 48.6 | ↓-2.7 | |
| 5/21 05:50 | 46.0 | ↓-2.6 | |
| 5/21 06:00 | 43.7 | ↓-2.3 | |
| 5/21 06:10 | 41.6 | ↓-2.1 | |
| 5/21 06:20 | 39.7 | ↓-1.9 | |
| 5/21 06:30 | 38.0 | ↓-1.7 | |
| 5/21 06:40 | 36.6 | ↓-1.4 | |
| 5/21 06:50 | 35.5 | ↓-1.1 | |
| 5/21 07:00 | 34.6 | ↓-0.9 | |
| 5/21 07:10 | 34.0 | ↓-0.6 | |
| 5/21 07:20 | 33.6 | ↓-0.4 | |
| 5/21 07:30 | 33.4 | ↓-0.2 | 干潮 |
| 5/21 07:40 | 33.6 | ↑0.2 | |
| 5/21 07:50 | 33.9 | ↑0.3 | |
| 5/21 08:00 | 34.5 | ↑0.6 | |
| 5/21 08:10 | 35.3 | ↑0.8 | |
| 5/21 08:20 | 36.3 | ↑1.0 | |
| 5/21 08:30 | 37.5 | ↑1.2 | |
| 5/21 08:40 | 38.9 | ↑1.4 | |
| 5/21 08:50 | 40.5 | ↑1.6 | |
| 5/21 09:00 | 42.4 | ↑1.9 | |
| 5/21 09:10 | 44.4 | ↑2.0 | |
| 5/21 09:20 | 46.6 | ↑2.2 | |
| 5/21 09:30 | 49.0 | ↑2.4 | |
| 5/21 09:40 | 51.5 | ↑2.5 | |
| 5/21 09:50 | 54.2 | ↑2.7 | |
| 5/21 10:00 | 57.0 | ↑2.8 | |
| 5/21 10:10 | 60.0 | ↑3.0 | |
| 5/21 10:20 | 63.0 | ↑3.0 | |
| 5/21 10:30 | 66.1 | ↑3.1 | |
| 5/21 10:40 | 69.3 | ↑3.2 | |
| 5/21 10:50 | 72.6 | ↑3.3 | |
| 5/21 11:00 | 75.8 | ↑3.2 | |
| 5/21 11:10 | 79.0 | ↑3.2 | |
| 5/21 11:20 | 82.1 | ↑3.1 | |
| 5/21 11:30 | 85.2 | ↑3.1 | |
| 5/21 11:40 | 88.1 | ↑2.9 | |
| 5/21 11:50 | 90.9 | ↑2.8 | |
| 5/21 12:00 | 93.6 | ↑2.7 | |
| 5/21 12:10 | 96.0 | ↑2.4 | |
| 5/21 12:20 | 98.3 | ↑2.3 | |
| 5/21 12:30 | 100.4 | ↑2.1 | |
| 5/21 12:40 | 102.3 | ↑1.9 | |
| 5/21 12:50 | 104.0 | ↑1.7 | |
| 5/21 13:00 | 105.5 | ↑1.5 | |
| 5/21 13:10 | 106.8 | ↑1.3 | |
| 5/21 13:20 | 107.8 | ↑1.0 | |
| 5/21 13:30 | 108.7 | ↑0.9 | |
| 5/21 13:40 | 109.4 | ↑0.7 | |
| 5/21 13:50 | 109.9 | ↑0.5 | |
| 5/21 14:00 | 110.2 | ↑0.3 | |
| 5/21 14:10 | 110.4 | ↑0.2 | 満潮 |
| 5/21 14:20 | 110.4 | 0 | |
| 5/21 14:30 | 110.3 | ↓-0.1 | |
| 5/21 14:40 | 110.0 | ↓-0.3 | |
| 5/21 14:50 | 109.5 | ↓-0.5 | |
| 5/21 15:00 | 108.9 | ↓-0.6 | |
| 5/21 15:10 | 108.2 | ↓-0.7 | |
| 5/21 15:20 | 107.3 | ↓-0.9 | |
| 5/21 15:30 | 106.3 | ↓-1.0 | |
| 5/21 15:40 | 105.2 | ↓-1.1 | |
| 5/21 15:50 | 103.9 | ↓-1.3 | |
| 5/21 16:00 | 102.6 | ↓-1.3 | |
| 5/21 16:10 | 101.1 | ↓-1.5 | |
| 5/21 16:20 | 99.5 | ↓-1.6 | |
| 5/21 16:30 | 97.9 | ↓-1.6 | |
| 5/21 16:40 | 96.2 | ↓-1.7 | |
| 5/21 16:50 | 94.5 | ↓-1.7 | |
| 5/21 17:00 | 92.7 | ↓-1.8 | |
| 5/21 17:10 | 91.0 | ↓-1.7 | |
| 5/21 17:20 | 89.3 | ↓-1.7 | |
| 5/21 17:30 | 87.7 | ↓-1.6 | |
| 5/21 17:40 | 86.1 | ↓-1.6 | |
| 5/21 17:50 | 84.7 | ↓-1.4 | |
| 5/21 18:00 | 83.4 | ↓-1.3 | |
| 5/21 18:10 | 82.3 | ↓-1.1 | |
| 5/21 18:20 | 81.3 | ↓-1.0 | |
| 5/21 18:30 | 80.6 | ↓-0.7 | |
| 5/21 18:40 | 80.0 | ↓-0.6 | |
| 5/21 18:50 | 79.6 | ↓-0.4 | |
| 5/21 19:00 | 79.4 | ↓-0.2 | 干潮 |
| 5/21 19:10 | 79.4 | 0 | |
| 5/21 19:20 | 79.6 | ↑0.2 | |
| 5/21 19:30 | 79.9 | ↑0.3 | |
| 5/21 19:40 | 80.4 | ↑0.5 | |
| 5/21 19:50 | 81.1 | ↑0.7 | |
| 5/21 20:00 | 81.9 | ↑0.8 | |
| 5/21 20:10 | 82.9 | ↑1.0 | |
| 5/21 20:20 | 84.0 | ↑1.1 | |
| 5/21 20:30 | 85.2 | ↑1.2 | |
| 5/21 20:40 | 86.5 | ↑1.3 | |
| 5/21 20:50 | 87.8 | ↑1.3 | |
| 5/21 21:00 | 89.3 | ↑1.5 | |
| 5/21 21:10 | 90.9 | ↑1.6 | |
| 5/21 21:20 | 92.5 | ↑1.6 | |
| 5/21 21:30 | 94.3 | ↑1.8 | |
| 5/21 21:40 | 96.1 | ↑1.8 | |
| 5/21 21:50 | 97.9 | ↑1.8 | |
| 5/21 22:00 | 99.9 | ↑2.0 | |
| 5/21 22:10 | 101.9 | ↑2.0 | |
| 5/21 22:20 | 103.9 | ↑2.0 | |
| 5/21 22:30 | 106.0 | ↑2.1 | |
| 5/21 22:40 | 108.0 | ↑2.0 | |
| 5/21 22:50 | 110.1 | ↑2.1 | |
| 5/21 23:00 | 112.2 | ↑2.1 | |
| 5/21 23:10 | 114.2 | ↑2.0 | |
| 5/21 23:20 | 116.1 | ↑1.9 | |
| 5/21 23:30 | 117.9 | ↑1.8 | |
| 5/21 23:40 | 119.6 | ↑1.7 | |
| 5/21 23:50 | 121.1 | ↑1.5 |