| 満潮 | 干潮 | 満潮 | 干潮 |
|
21
(水) |
02:07 | 09:22 | 16:24 | 21:01 |
| 139cm | 8cm | 123cm | 83cm | |
|
||||
苫小牧（北海道）2031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 | 117.1 | ↑2.7 | |
| 5/21 00:10 | 119.9 | ↑2.8 | |
| 5/21 00:20 | 122.6 | ↑2.7 | |
| 5/21 00:30 | 125.2 | ↑2.6 | |
| 5/21 00:40 | 127.7 | ↑2.5 | |
| 5/21 00:50 | 130.0 | ↑2.3 | |
| 5/21 01:00 | 132.1 | ↑2.1 | |
| 5/21 01:10 | 133.9 | ↑1.8 | |
| 5/21 01:20 | 135.5 | ↑1.6 | |
| 5/21 01:30 | 136.8 | ↑1.3 | |
| 5/21 01:40 | 137.8 | ↑1.0 | |
| 5/21 01:50 | 138.5 | ↑0.7 | |
| 5/21 02:00 | 138.8 | ↑0.3 | 満潮 |
| 5/21 02:10 | 138.8 | 0 | |
| 5/21 02:20 | 138.6 | ↓-0.2 | |
| 5/21 02:30 | 138.0 | ↓-0.6 | |
| 5/21 02:40 | 137.1 | ↓-0.9 | |
| 5/21 02:50 | 135.9 | ↓-1.2 | |
| 5/21 03:00 | 134.4 | ↓-1.5 | |
| 5/21 03:10 | 132.8 | ↓-1.6 | |
| 5/21 03:20 | 130.8 | ↓-2.0 | |
| 5/21 03:30 | 128.7 | ↓-2.1 | |
| 5/21 03:40 | 126.3 | ↓-2.4 | |
| 5/21 03:50 | 123.7 | ↓-2.6 | |
| 5/21 04:00 | 120.9 | ↓-2.8 | |
| 5/21 04:10 | 117.9 | ↓-3.0 | |
| 5/21 04:20 | 114.7 | ↓-3.2 | |
| 5/21 04:30 | 111.3 | ↓-3.4 | |
| 5/21 04:40 | 107.6 | ↓-3.7 | |
| 5/21 04:50 | 103.8 | ↓-3.8 | |
| 5/21 05:00 | 99.8 | ↓-4.0 | |
| 5/21 05:10 | 95.5 | ↓-4.3 | |
| 5/21 05:20 | 91.1 | ↓-4.4 | |
| 5/21 05:30 | 86.5 | ↓-4.6 | |
| 5/21 05:40 | 81.7 | ↓-4.8 | |
| 5/21 05:50 | 76.8 | ↓-4.9 | |
| 5/21 06:00 | 71.8 | ↓-5.0 | |
| 5/21 06:10 | 66.8 | ↓-5.0 | |
| 5/21 06:20 | 61.7 | ↓-5.1 | 最大潮位差 |
| 5/21 06:30 | 56.6 | ↓-5.1 | 最大潮位差 |
| 5/21 06:40 | 51.6 | ↓-5.0 | |
| 5/21 06:50 | 46.8 | ↓-4.8 | |
| 5/21 07:00 | 42.0 | ↓-4.8 | |
| 5/21 07:10 | 37.5 | ↓-4.5 | |
| 5/21 07:20 | 33.2 | ↓-4.3 | |
| 5/21 07:30 | 29.2 | ↓-4.0 | |
| 5/21 07:40 | 25.5 | ↓-3.7 | |
| 5/21 07:50 | 22.1 | ↓-3.4 | |
| 5/21 08:00 | 19.1 | ↓-3.0 | |
| 5/21 08:10 | 16.4 | ↓-2.7 | |
| 5/21 08:20 | 14.1 | ↓-2.3 | |
| 5/21 08:30 | 12.2 | ↓-1.9 | |
| 5/21 08:40 | 10.6 | ↓-1.6 | |
| 5/21 08:50 | 9.4 | ↓-1.2 | |
| 5/21 09:00 | 8.6 | ↓-0.8 | |
| 5/21 09:10 | 8.1 | ↓-0.5 | |
| 5/21 09:20 | 7.9 | ↓-0.2 | 干潮 |
| 5/21 09:30 | 8.0 | ↑0.1 | |
| 5/21 09:40 | 8.4 | ↑0.4 | |
| 5/21 09:50 | 9.2 | ↑0.8 | |
| 5/21 10:00 | 10.2 | ↑1.0 | |
| 5/21 10:10 | 11.6 | ↑1.4 | |
| 5/21 10:20 | 13.2 | ↑1.6 | |
| 5/21 10:30 | 15.1 | ↑1.9 | |
| 5/21 10:40 | 17.4 | ↑2.3 | |
| 5/21 10:50 | 19.9 | ↑2.5 | |
| 5/21 11:00 | 22.7 | ↑2.8 | |
| 5/21 11:10 | 25.9 | ↑3.2 | |
| 5/21 11:20 | 29.3 | ↑3.4 | |
| 5/21 11:30 | 33.0 | ↑3.7 | |
| 5/21 11:40 | 37.0 | ↑4.0 | |
| 5/21 11:50 | 41.2 | ↑4.2 | |
| 5/21 12:00 | 45.6 | ↑4.4 | |
| 5/21 12:10 | 50.2 | ↑4.6 | |
| 5/21 12:20 | 54.9 | ↑4.7 | |
| 5/21 12:30 | 59.7 | ↑4.8 | |
| 5/21 12:40 | 64.6 | ↑4.9 | |
| 5/21 12:50 | 69.4 | ↑4.8 | |
| 5/21 13:00 | 74.3 | ↑4.9 | |
| 5/21 13:10 | 79.0 | ↑4.7 | |
| 5/21 13:20 | 83.6 | ↑4.6 | |
| 5/21 13:30 | 88.0 | ↑4.4 | |
| 5/21 13:40 | 92.2 | ↑4.2 | |
| 5/21 13:50 | 96.1 | ↑3.9 | |
| 5/21 14:00 | 99.8 | ↑3.7 | |
| 5/21 14:10 | 103.2 | ↑3.4 | |
| 5/21 14:20 | 106.3 | ↑3.1 | |
| 5/21 14:30 | 109.1 | ↑2.8 | |
| 5/21 14:40 | 111.7 | ↑2.6 | |
| 5/21 14:50 | 113.9 | ↑2.2 | |
| 5/21 15:00 | 115.8 | ↑1.9 | |
| 5/21 15:10 | 117.5 | ↑1.7 | |
| 5/21 15:20 | 119.0 | ↑1.5 | |
| 5/21 15:30 | 120.1 | ↑1.1 | |
| 5/21 15:40 | 121.1 | ↑1.0 | |
| 5/21 15:50 | 121.9 | ↑0.8 | |
| 5/21 16:00 | 122.4 | ↑0.5 | |
| 5/21 16:10 | 122.8 | ↑0.4 | |
| 5/21 16:20 | 122.9 | ↑0.1 | 満潮 |
| 5/21 16:30 | 122.9 | 0 | |
| 5/21 16:40 | 122.7 | ↓-0.2 | |
| 5/21 16:50 | 122.2 | ↓-0.5 | |
| 5/21 17:00 | 121.5 | ↓-0.7 | |
| 5/21 17:10 | 120.7 | ↓-0.8 | |
| 5/21 17:20 | 119.6 | ↓-1.1 | |
| 5/21 17:30 | 118.3 | ↓-1.3 | |
| 5/21 17:40 | 116.8 | ↓-1.5 | |
| 5/21 17:50 | 115.0 | ↓-1.8 | |
| 5/21 18:00 | 113.2 | ↓-1.8 | |
| 5/21 18:10 | 111.1 | ↓-2.1 | |
| 5/21 18:20 | 108.9 | ↓-2.2 | |
| 5/21 18:30 | 106.6 | ↓-2.3 | |
| 5/21 18:40 | 104.2 | ↓-2.4 | |
| 5/21 18:50 | 101.8 | ↓-2.4 | |
| 5/21 19:00 | 99.4 | ↓-2.4 | |
| 5/21 19:10 | 97.0 | ↓-2.4 | |
| 5/21 19:20 | 94.8 | ↓-2.2 | |
| 5/21 19:30 | 92.6 | ↓-2.2 | |
| 5/21 19:40 | 90.6 | ↓-2.0 | |
| 5/21 19:50 | 88.8 | ↓-1.8 | |
| 5/21 20:00 | 87.3 | ↓-1.5 | |
| 5/21 20:10 | 85.9 | ↓-1.4 | |
| 5/21 20:20 | 84.8 | ↓-1.1 | |
| 5/21 20:30 | 84.0 | ↓-0.8 | |
| 5/21 20:40 | 83.4 | ↓-0.6 | |
| 5/21 20:50 | 83.0 | ↓-0.4 | |
| 5/21 21:00 | 82.9 | ↓-0.1 | 干潮 |
| 5/21 21:10 | 83.0 | ↑0.1 | |
| 5/21 21:20 | 83.3 | ↑0.3 | |
| 5/21 21:30 | 83.8 | ↑0.5 | |
| 5/21 21:40 | 84.5 | ↑0.7 | |
| 5/21 21:50 | 85.3 | ↑0.8 | |
| 5/21 22:00 | 86.2 | ↑0.9 | |
| 5/21 22:10 | 87.3 | ↑1.1 | |
| 5/21 22:20 | 88.6 | ↑1.3 | |
| 5/21 22:30 | 89.9 | ↑1.3 | |
| 5/21 22:40 | 91.4 | ↑1.5 | |
| 5/21 22:50 | 93.0 | ↑1.6 | |
| 5/21 23:00 | 94.8 | ↑1.8 | |
| 5/21 23:10 | 96.7 | ↑1.9 | |
| 5/21 23:20 | 98.7 | ↑2.0 | |
| 5/21 23:30 | 100.9 | ↑2.2 | |
| 5/21 23:40 | 103.2 | ↑2.3 | |
| 5/21 23:50 | 105.7 | ↑2.5 |