| 満潮 | 干潮 | 満潮 | 干潮 |
|
20
(日) |
03:08 | 10:15 | 17:29 | 22:11 |
| 147cm | -6cm | 128cm | 85cm | |
|
||||
苫小牧（北海道）2057年05月20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 |
|---|---|---|---|
| 5/20 00:00 | 100.8 | ↑2.6 | |
| 5/20 00:10 | 103.6 | ↑2.8 | |
| 5/20 00:20 | 106.4 | ↑2.8 | |
| 5/20 00:30 | 109.4 | ↑3.0 | |
| 5/20 00:40 | 112.5 | ↑3.1 | |
| 5/20 00:50 | 115.7 | ↑3.2 | |
| 5/20 01:00 | 118.9 | ↑3.2 | |
| 5/20 01:10 | 122.1 | ↑3.2 | |
| 5/20 01:20 | 125.2 | ↑3.1 | |
| 5/20 01:30 | 128.4 | ↑3.2 | |
| 5/20 01:40 | 131.4 | ↑3.0 | |
| 5/20 01:50 | 134.2 | ↑2.8 | |
| 5/20 02:00 | 136.9 | ↑2.7 | |
| 5/20 02:10 | 139.2 | ↑2.3 | |
| 5/20 02:20 | 141.3 | ↑2.1 | |
| 5/20 02:30 | 143.1 | ↑1.8 | |
| 5/20 02:40 | 144.4 | ↑1.3 | |
| 5/20 02:50 | 145.4 | ↑1.0 | |
| 5/20 03:00 | 146.0 | ↑0.6 | 満潮 |
| 5/20 03:10 | 146.1 | ↑0.1 | |
| 5/20 03:20 | 145.7 | ↓-0.4 | |
| 5/20 03:30 | 144.9 | ↓-0.8 | |
| 5/20 03:40 | 143.7 | ↓-1.2 | |
| 5/20 03:50 | 142.1 | ↓-1.6 | |
| 5/20 04:00 | 140.1 | ↓-2.0 | |
| 5/20 04:10 | 137.8 | ↓-2.3 | |
| 5/20 04:20 | 135.1 | ↓-2.7 | |
| 5/20 04:30 | 132.1 | ↓-3.0 | |
| 5/20 04:40 | 128.8 | ↓-3.3 | |
| 5/20 04:50 | 125.3 | ↓-3.5 | |
| 5/20 05:00 | 121.5 | ↓-3.8 | |
| 5/20 05:10 | 117.5 | ↓-4.0 | |
| 5/20 05:20 | 113.4 | ↓-4.1 | |
| 5/20 05:30 | 109.1 | ↓-4.3 | |
| 5/20 05:40 | 104.6 | ↓-4.5 | |
| 5/20 05:50 | 99.9 | ↓-4.7 | |
| 5/20 06:00 | 95.1 | ↓-4.8 | |
| 5/20 06:10 | 90.2 | ↓-4.9 | |
| 5/20 06:20 | 85.1 | ↓-5.1 | |
| 5/20 06:30 | 79.9 | ↓-5.2 | |
| 5/20 06:40 | 74.6 | ↓-5.3 | |
| 5/20 06:50 | 69.2 | ↓-5.4 | |
| 5/20 07:00 | 63.7 | ↓-5.5 | |
| 5/20 07:10 | 58.1 | ↓-5.6 | 最大潮位差 |
| 5/20 07:20 | 52.5 | ↓-5.6 | 最大潮位差 |
| 5/20 07:30 | 47.0 | ↓-5.5 | |
| 5/20 07:40 | 41.5 | ↓-5.5 | |
| 5/20 07:50 | 36.1 | ↓-5.4 | |
| 5/20 08:00 | 30.8 | ↓-5.3 | |
| 5/20 08:10 | 25.7 | ↓-5.1 | |
| 5/20 08:20 | 20.9 | ↓-4.8 | |
| 5/20 08:30 | 16.4 | ↓-4.5 | |
| 5/20 08:40 | 12.2 | ↓-4.2 | |
| 5/20 08:50 | 8.4 | ↓-3.8 | |
| 5/20 09:00 | 4.9 | ↓-3.5 | |
| 5/20 09:10 | 1.9 | ↓-3.0 | |
| 5/20 09:20 | -0.6 | ↓-2.5 | |
| 5/20 09:30 | -2.7 | ↓-2.1 | |
| 5/20 09:40 | -4.4 | ↓-1.7 | |
| 5/20 09:50 | -5.6 | ↓-1.2 | |
| 5/20 10:00 | -6.4 | ↓-0.8 | |
| 5/20 10:10 | -6.7 | ↓-0.3 | 干潮 |
| 5/20 10:20 | -6.7 | 0 | |
| 5/20 10:30 | -6.3 | ↑0.4 | |
| 5/20 10:40 | -5.5 | ↑0.8 | |
| 5/20 10:50 | -4.3 | ↑1.2 | |
| 5/20 11:00 | -2.9 | ↑1.4 | |
| 5/20 11:10 | -1.1 | ↑1.8 | |
| 5/20 11:20 | 0.9 | ↑2.0 | |
| 5/20 11:30 | 3.3 | ↑2.4 | |
| 5/20 11:40 | 5.9 | ↑2.6 | |
| 5/20 11:50 | 8.7 | ↑2.8 | |
| 5/20 12:00 | 11.9 | ↑3.2 | |
| 5/20 12:10 | 15.3 | ↑3.4 | |
| 5/20 12:20 | 19.0 | ↑3.7 | |
| 5/20 12:30 | 22.9 | ↑3.9 | |
| 5/20 12:40 | 27.1 | ↑4.2 | |
| 5/20 12:50 | 31.5 | ↑4.4 | |
| 5/20 13:00 | 36.2 | ↑4.7 | |
| 5/20 13:10 | 41.1 | ↑4.9 | |
| 5/20 13:20 | 46.1 | ↑5.0 | |
| 5/20 13:30 | 51.4 | ↑5.3 | |
| 5/20 13:40 | 56.7 | ↑5.3 | |
| 5/20 13:50 | 62.1 | ↑5.4 | |
| 5/20 14:00 | 67.5 | ↑5.4 | |
| 5/20 14:10 | 73.0 | ↑5.5 | |
| 5/20 14:20 | 78.3 | ↑5.3 | |
| 5/20 14:30 | 83.5 | ↑5.2 | |
| 5/20 14:40 | 88.5 | ↑5.0 | |
| 5/20 14:50 | 93.3 | ↑4.8 | |
| 5/20 15:00 | 97.9 | ↑4.6 | |
| 5/20 15:10 | 102.1 | ↑4.2 | |
| 5/20 15:20 | 106.0 | ↑3.9 | |
| 5/20 15:30 | 109.6 | ↑3.6 | |
| 5/20 15:40 | 112.8 | ↑3.2 | |
| 5/20 15:50 | 115.7 | ↑2.9 | |
| 5/20 16:00 | 118.2 | ↑2.5 | |
| 5/20 16:10 | 120.4 | ↑2.2 | |
| 5/20 16:20 | 122.2 | ↑1.8 | |
| 5/20 16:30 | 123.8 | ↑1.6 | |
| 5/20 16:40 | 125.0 | ↑1.2 | |
| 5/20 16:50 | 126.0 | ↑1.0 | |
| 5/20 17:00 | 126.7 | ↑0.7 | |
| 5/20 17:10 | 127.2 | ↑0.5 | |
| 5/20 17:20 | 127.4 | ↑0.2 | 満潮 |
| 5/20 17:30 | 127.5 | ↑0.1 | |
| 5/20 17:40 | 127.4 | ↓-0.1 | |
| 5/20 17:50 | 127.1 | ↓-0.3 | |
| 5/20 18:00 | 126.6 | ↓-0.5 | |
| 5/20 18:10 | 125.8 | ↓-0.8 | |
| 5/20 18:20 | 124.9 | ↓-0.9 | |
| 5/20 18:30 | 123.8 | ↓-1.1 | |
| 5/20 18:40 | 122.5 | ↓-1.3 | |
| 5/20 18:50 | 121.0 | ↓-1.5 | |
| 5/20 19:00 | 119.3 | ↓-1.7 | |
| 5/20 19:10 | 117.4 | ↓-1.9 | |
| 5/20 19:20 | 115.4 | ↓-2.0 | |
| 5/20 19:30 | 113.1 | ↓-2.3 | |
| 5/20 19:40 | 110.8 | ↓-2.3 | |
| 5/20 19:50 | 108.3 | ↓-2.5 | |
| 5/20 20:00 | 105.7 | ↓-2.6 | |
| 5/20 20:10 | 103.2 | ↓-2.5 | |
| 5/20 20:20 | 100.6 | ↓-2.6 | |
| 5/20 20:30 | 98.1 | ↓-2.5 | |
| 5/20 20:40 | 95.7 | ↓-2.4 | |
| 5/20 20:50 | 93.4 | ↓-2.3 | |
| 5/20 21:00 | 91.4 | ↓-2.0 | |
| 5/20 21:10 | 89.5 | ↓-1.9 | |
| 5/20 21:20 | 87.9 | ↓-1.6 | |
| 5/20 21:30 | 86.6 | ↓-1.3 | |
| 5/20 21:40 | 85.5 | ↓-1.1 | |
| 5/20 21:50 | 84.8 | ↓-0.7 | |
| 5/20 22:00 | 84.3 | ↓-0.5 | |
| 5/20 22:10 | 84.2 | ↓-0.1 | 干潮 |
| 5/20 22:20 | 84.3 | ↑0.1 | |
| 5/20 22:30 | 84.8 | ↑0.5 | |
| 5/20 22:40 | 85.4 | ↑0.6 | |
| 5/20 22:50 | 86.3 | ↑0.9 | |
| 5/20 23:00 | 87.4 | ↑1.1 | |
| 5/20 23:10 | 88.7 | ↑1.3 | |
| 5/20 23:20 | 90.2 | ↑1.5 | |
| 5/20 23:30 | 91.8 | ↑1.6 | |
| 5/20 23:40 | 93.5 | ↑1.7 | |
| 5/20 23:50 | 95.4 | ↑1.9 |