| 満潮 | 干潮 | 満潮 | 干潮 |
|
20
(月) |
03:50 | 11:09 | 18:42 | 22:59 |
| 150cm | -5cm | 122cm | 88cm | |
|
||||
苫小牧（北海道）2030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 | 98.9 | ↑1.7 | |
| 5/20 00:10 | 100.9 | ↑2.0 | |
| 5/20 00:20 | 102.9 | ↑2.0 | |
| 5/20 00:30 | 105.1 | ↑2.2 | |
| 5/20 00:40 | 107.3 | ↑2.2 | |
| 5/20 00:50 | 109.8 | ↑2.5 | |
| 5/20 01:00 | 112.3 | ↑2.5 | |
| 5/20 01:10 | 115.0 | ↑2.7 | |
| 5/20 01:20 | 117.7 | ↑2.7 | |
| 5/20 01:30 | 120.6 | ↑2.9 | |
| 5/20 01:40 | 123.5 | ↑2.9 | |
| 5/20 01:50 | 126.5 | ↑3.0 | |
| 5/20 02:00 | 129.4 | ↑2.9 | |
| 5/20 02:10 | 132.4 | ↑3.0 | |
| 5/20 02:20 | 135.2 | ↑2.8 | |
| 5/20 02:30 | 138.0 | ↑2.8 | |
| 5/20 02:40 | 140.5 | ↑2.5 | |
| 5/20 02:50 | 142.9 | ↑2.4 | |
| 5/20 03:00 | 144.9 | ↑2.0 | |
| 5/20 03:10 | 146.7 | ↑1.8 | |
| 5/20 03:20 | 148.1 | ↑1.4 | |
| 5/20 03:30 | 149.1 | ↑1.0 | |
| 5/20 03:40 | 149.7 | ↑0.6 | 満潮 |
| 5/20 03:50 | 149.9 | ↑0.2 | 満潮 |
| 5/20 04:00 | 149.6 | ↓-0.3 | |
| 5/20 04:10 | 149.0 | ↓-0.6 | |
| 5/20 04:20 | 147.9 | ↓-1.1 | |
| 5/20 04:30 | 146.4 | ↓-1.5 | |
| 5/20 04:40 | 144.5 | ↓-1.9 | |
| 5/20 04:50 | 142.2 | ↓-2.3 | |
| 5/20 05:00 | 139.6 | ↓-2.6 | |
| 5/20 05:10 | 136.7 | ↓-2.9 | |
| 5/20 05:20 | 133.6 | ↓-3.1 | |
| 5/20 05:30 | 130.2 | ↓-3.4 | |
| 5/20 05:40 | 126.5 | ↓-3.7 | |
| 5/20 05:50 | 122.7 | ↓-3.8 | |
| 5/20 06:00 | 118.7 | ↓-4.0 | |
| 5/20 06:10 | 114.5 | ↓-4.2 | |
| 5/20 06:20 | 110.2 | ↓-4.3 | |
| 5/20 06:30 | 105.7 | ↓-4.5 | |
| 5/20 06:40 | 101.0 | ↓-4.7 | |
| 5/20 06:50 | 96.2 | ↓-4.8 | |
| 5/20 07:00 | 91.3 | ↓-4.9 | |
| 5/20 07:10 | 86.2 | ↓-5.1 | |
| 5/20 07:20 | 81.0 | ↓-5.2 | |
| 5/20 07:30 | 75.7 | ↓-5.3 | |
| 5/20 07:40 | 70.3 | ↓-5.4 | |
| 5/20 07:50 | 64.8 | ↓-5.5 | |
| 5/20 08:00 | 59.3 | ↓-5.5 | |
| 5/20 08:10 | 53.8 | ↓-5.5 | |
| 5/20 08:20 | 48.2 | ↓-5.6 | 最大潮位差 |
| 5/20 08:30 | 42.8 | ↓-5.4 | |
| 5/20 08:40 | 37.4 | ↓-5.4 | |
| 5/20 08:50 | 32.2 | ↓-5.2 | |
| 5/20 09:00 | 27.2 | ↓-5.0 | |
| 5/20 09:10 | 22.5 | ↓-4.7 | |
| 5/20 09:20 | 18.0 | ↓-4.5 | |
| 5/20 09:30 | 13.9 | ↓-4.1 | |
| 5/20 09:40 | 10.2 | ↓-3.7 | |
| 5/20 09:50 | 6.8 | ↓-3.4 | |
| 5/20 10:00 | 3.9 | ↓-2.9 | |
| 5/20 10:10 | 1.4 | ↓-2.5 | |
| 5/20 10:20 | -0.7 | ↓-2.1 | |
| 5/20 10:30 | -2.4 | ↓-1.7 | |
| 5/20 10:40 | -3.6 | ↓-1.2 | |
| 5/20 10:50 | -4.5 | ↓-0.9 | |
| 5/20 11:00 | -5.0 | ↓-0.5 | 干潮 |
| 5/20 11:10 | -5.1 | ↓-0.1 | |
| 5/20 11:20 | -4.8 | ↑0.3 | |
| 5/20 11:30 | -4.3 | ↑0.5 | |
| 5/20 11:40 | -3.4 | ↑0.9 | |
| 5/20 11:50 | -2.3 | ↑1.1 | |
| 5/20 12:00 | -0.8 | ↑1.5 | |
| 5/20 12:10 | 0.9 | ↑1.7 | |
| 5/20 12:20 | 2.9 | ↑2.0 | |
| 5/20 12:30 | 5.1 | ↑2.2 | |
| 5/20 12:40 | 7.6 | ↑2.5 | |
| 5/20 12:50 | 10.3 | ↑2.7 | |
| 5/20 13:00 | 13.3 | ↑3.0 | |
| 5/20 13:10 | 16.6 | ↑3.3 | |
| 5/20 13:20 | 20.2 | ↑3.6 | |
| 5/20 13:30 | 24.0 | ↑3.8 | |
| 5/20 13:40 | 28.1 | ↑4.1 | |
| 5/20 13:50 | 32.4 | ↑4.3 | |
| 5/20 14:00 | 36.9 | ↑4.5 | |
| 5/20 14:10 | 41.6 | ↑4.7 | |
| 5/20 14:20 | 46.5 | ↑4.9 | |
| 5/20 14:30 | 51.5 | ↑5.0 | |
| 5/20 14:40 | 56.5 | ↑5.0 | |
| 5/20 14:50 | 61.6 | ↑5.1 | |
| 5/20 15:00 | 66.7 | ↑5.1 | |
| 5/20 15:10 | 71.7 | ↑5.0 | |
| 5/20 15:20 | 76.6 | ↑4.9 | |
| 5/20 15:30 | 81.3 | ↑4.7 | |
| 5/20 15:40 | 85.8 | ↑4.5 | |
| 5/20 15:50 | 90.1 | ↑4.3 | |
| 5/20 16:00 | 94.0 | ↑3.9 | |
| 5/20 16:10 | 97.7 | ↑3.7 | |
| 5/20 16:20 | 101.1 | ↑3.4 | |
| 5/20 16:30 | 104.2 | ↑3.1 | |
| 5/20 16:40 | 107.0 | ↑2.8 | |
| 5/20 16:50 | 109.5 | ↑2.5 | |
| 5/20 17:00 | 111.6 | ↑2.1 | |
| 5/20 17:10 | 113.5 | ↑1.9 | |
| 5/20 17:20 | 115.2 | ↑1.7 | |
| 5/20 17:30 | 116.6 | ↑1.4 | |
| 5/20 17:40 | 117.8 | ↑1.2 | |
| 5/20 17:50 | 118.7 | ↑0.9 | |
| 5/20 18:00 | 119.5 | ↑0.8 | |
| 5/20 18:10 | 120.2 | ↑0.7 | |
| 5/20 18:20 | 120.6 | ↑0.4 | |
| 5/20 18:30 | 120.9 | ↑0.3 | |
| 5/20 18:40 | 121.0 | ↑0.1 | 満潮 |
| 5/20 18:50 | 120.9 | ↓-0.1 | |
| 5/20 19:00 | 120.7 | ↓-0.2 | |
| 5/20 19:10 | 120.3 | ↓-0.4 | |
| 5/20 19:20 | 119.6 | ↓-0.7 | |
| 5/20 19:30 | 118.8 | ↓-0.8 | |
| 5/20 19:40 | 117.8 | ↓-1.0 | |
| 5/20 19:50 | 116.5 | ↓-1.3 | |
| 5/20 20:00 | 115.1 | ↓-1.4 | |
| 5/20 20:10 | 113.5 | ↓-1.6 | |
| 5/20 20:20 | 111.7 | ↓-1.8 | |
| 5/20 20:30 | 109.7 | ↓-2.0 | |
| 5/20 20:40 | 107.7 | ↓-2.0 | |
| 5/20 20:50 | 105.6 | ↓-2.1 | |
| 5/20 21:00 | 103.4 | ↓-2.2 | |
| 5/20 21:10 | 101.2 | ↓-2.2 | |
| 5/20 21:20 | 99.1 | ↓-2.1 | |
| 5/20 21:30 | 97.1 | ↓-2.0 | |
| 5/20 21:40 | 95.2 | ↓-1.9 | |
| 5/20 21:50 | 93.4 | ↓-1.8 | |
| 5/20 22:00 | 91.9 | ↓-1.5 | |
| 5/20 22:10 | 90.6 | ↓-1.3 | |
| 5/20 22:20 | 89.5 | ↓-1.1 | |
| 5/20 22:30 | 88.7 | ↓-0.8 | |
| 5/20 22:40 | 88.1 | ↓-0.6 | |
| 5/20 22:50 | 87.8 | ↓-0.3 | 干潮 |
| 5/20 23:00 | 87.7 | ↓-0.1 | |
| 5/20 23:10 | 87.9 | ↑0.2 | |
| 5/20 23:20 | 88.3 | ↑0.4 | |
| 5/20 23:30 | 88.9 | ↑0.6 | |
| 5/20 23:40 | 89.7 | ↑0.8 | |
| 5/20 23:50 | 90.7 | ↑1.0 |