| 満潮 | 干潮 | 満潮 | 干潮 |
|
21
(火) |
04:34 | 11:53 | 19:29 | 23:45 |
| 147cm | 4cm | 118cm | 87cm | |
|
||||
苫小牧（北海道）2030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 | 91.8 | ↑1.1 | |
| 5/21 00:10 | 93.0 | ↑1.2 | |
| 5/21 00:20 | 94.4 | ↑1.4 | |
| 5/21 00:30 | 95.9 | ↑1.5 | |
| 5/21 00:40 | 97.5 | ↑1.6 | |
| 5/21 00:50 | 99.3 | ↑1.8 | |
| 5/21 01:00 | 101.1 | ↑1.8 | |
| 5/21 01:10 | 103.1 | ↑2.0 | |
| 5/21 01:20 | 105.2 | ↑2.1 | |
| 5/21 01:30 | 107.4 | ↑2.2 | |
| 5/21 01:40 | 109.8 | ↑2.4 | |
| 5/21 01:50 | 112.2 | ↑2.4 | |
| 5/21 02:00 | 114.8 | ↑2.6 | |
| 5/21 02:10 | 117.5 | ↑2.7 | |
| 5/21 02:20 | 120.2 | ↑2.7 | |
| 5/21 02:30 | 123.0 | ↑2.8 | |
| 5/21 02:40 | 125.9 | ↑2.9 | |
| 5/21 02:50 | 128.7 | ↑2.8 | |
| 5/21 03:00 | 131.4 | ↑2.7 | |
| 5/21 03:10 | 134.1 | ↑2.7 | |
| 5/21 03:20 | 136.6 | ↑2.5 | |
| 5/21 03:30 | 138.9 | ↑2.3 | |
| 5/21 03:40 | 141.0 | ↑2.1 | |
| 5/21 03:50 | 142.7 | ↑1.7 | |
| 5/21 04:00 | 144.2 | ↑1.5 | |
| 5/21 04:10 | 145.3 | ↑1.1 | |
| 5/21 04:20 | 146.0 | ↑0.7 | |
| 5/21 04:30 | 146.3 | ↑0.3 | 満潮 |
| 5/21 04:40 | 146.2 | ↓-0.1 | |
| 5/21 04:50 | 145.7 | ↓-0.5 | |
| 5/21 05:00 | 144.8 | ↓-0.9 | |
| 5/21 05:10 | 143.5 | ↓-1.3 | |
| 5/21 05:20 | 141.8 | ↓-1.7 | |
| 5/21 05:30 | 139.8 | ↓-2.0 | |
| 5/21 05:40 | 137.5 | ↓-2.3 | |
| 5/21 05:50 | 134.9 | ↓-2.6 | |
| 5/21 06:00 | 132.0 | ↓-2.9 | |
| 5/21 06:10 | 128.9 | ↓-3.1 | |
| 5/21 06:20 | 125.6 | ↓-3.3 | |
| 5/21 06:30 | 122.1 | ↓-3.5 | |
| 5/21 06:40 | 118.5 | ↓-3.6 | |
| 5/21 06:50 | 114.7 | ↓-3.8 | |
| 5/21 07:00 | 110.7 | ↓-4.0 | |
| 5/21 07:10 | 106.6 | ↓-4.1 | |
| 5/21 07:20 | 102.4 | ↓-4.2 | |
| 5/21 07:30 | 98.0 | ↓-4.4 | |
| 5/21 07:40 | 93.5 | ↓-4.5 | |
| 5/21 07:50 | 88.9 | ↓-4.6 | |
| 5/21 08:00 | 84.2 | ↓-4.7 | |
| 5/21 08:10 | 79.3 | ↓-4.9 | |
| 5/21 08:20 | 74.4 | ↓-4.9 | |
| 5/21 08:30 | 69.3 | ↓-5.1 | |
| 5/21 08:40 | 64.3 | ↓-5.0 | |
| 5/21 08:50 | 59.1 | ↓-5.2 | 最大潮位差 |
| 5/21 09:00 | 54.0 | ↓-5.1 | |
| 5/21 09:10 | 49.0 | ↓-5.0 | |
| 5/21 09:20 | 44.0 | ↓-5.0 | |
| 5/21 09:30 | 39.2 | ↓-4.8 | |
| 5/21 09:40 | 34.6 | ↓-4.6 | |
| 5/21 09:50 | 30.1 | ↓-4.5 | |
| 5/21 10:00 | 26.0 | ↓-4.1 | |
| 5/21 10:10 | 22.1 | ↓-3.9 | |
| 5/21 10:20 | 18.5 | ↓-3.6 | |
| 5/21 10:30 | 15.4 | ↓-3.1 | |
| 5/21 10:40 | 12.5 | ↓-2.9 | |
| 5/21 10:50 | 10.1 | ↓-2.4 | |
| 5/21 11:00 | 8.1 | ↓-2.0 | |
| 5/21 11:10 | 6.4 | ↓-1.7 | |
| 5/21 11:20 | 5.2 | ↓-1.2 | |
| 5/21 11:30 | 4.3 | ↓-0.9 | |
| 5/21 11:40 | 3.7 | ↓-0.6 | |
| 5/21 11:50 | 3.5 | ↓-0.2 | 干潮 |
| 5/21 12:00 | 3.6 | ↑0.1 | |
| 5/21 12:10 | 4.0 | ↑0.4 | |
| 5/21 12:20 | 4.6 | ↑0.6 | |
| 5/21 12:30 | 5.6 | ↑1.0 | |
| 5/21 12:40 | 6.8 | ↑1.2 | |
| 5/21 12:50 | 8.2 | ↑1.4 | |
| 5/21 13:00 | 9.8 | ↑1.6 | |
| 5/21 13:10 | 11.7 | ↑1.9 | |
| 5/21 13:20 | 13.8 | ↑2.1 | |
| 5/21 13:30 | 16.2 | ↑2.4 | |
| 5/21 13:40 | 18.8 | ↑2.6 | |
| 5/21 13:50 | 21.7 | ↑2.9 | |
| 5/21 14:00 | 24.8 | ↑3.1 | |
| 5/21 14:10 | 28.1 | ↑3.3 | |
| 5/21 14:20 | 31.7 | ↑3.6 | |
| 5/21 14:30 | 35.5 | ↑3.8 | |
| 5/21 14:40 | 39.5 | ↑4.0 | |
| 5/21 14:50 | 43.8 | ↑4.3 | |
| 5/21 15:00 | 48.1 | ↑4.3 | |
| 5/21 15:10 | 52.6 | ↑4.5 | |
| 5/21 15:20 | 57.2 | ↑4.6 | |
| 5/21 15:30 | 61.8 | ↑4.6 | |
| 5/21 15:40 | 66.4 | ↑4.6 | |
| 5/21 15:50 | 71.0 | ↑4.6 | |
| 5/21 16:00 | 75.4 | ↑4.4 | |
| 5/21 16:10 | 79.7 | ↑4.3 | |
| 5/21 16:20 | 83.9 | ↑4.2 | |
| 5/21 16:30 | 87.8 | ↑3.9 | |
| 5/21 16:40 | 91.4 | ↑3.6 | |
| 5/21 16:50 | 94.9 | ↑3.5 | |
| 5/21 17:00 | 98.0 | ↑3.1 | |
| 5/21 17:10 | 100.8 | ↑2.8 | |
| 5/21 17:20 | 103.4 | ↑2.6 | |
| 5/21 17:30 | 105.7 | ↑2.3 | |
| 5/21 17:40 | 107.7 | ↑2.0 | |
| 5/21 17:50 | 109.5 | ↑1.8 | |
| 5/21 18:00 | 111.1 | ↑1.6 | |
| 5/21 18:10 | 112.4 | ↑1.3 | |
| 5/21 18:20 | 113.5 | ↑1.1 | |
| 5/21 18:30 | 114.5 | ↑1.0 | |
| 5/21 18:40 | 115.3 | ↑0.8 | |
| 5/21 18:50 | 115.9 | ↑0.6 | |
| 5/21 19:00 | 116.4 | ↑0.5 | |
| 5/21 19:10 | 116.8 | ↑0.4 | |
| 5/21 19:20 | 117.0 | ↑0.2 | 満潮 |
| 5/21 19:30 | 117.0 | 0 | |
| 5/21 19:40 | 116.9 | ↓-0.1 | |
| 5/21 19:50 | 116.6 | ↓-0.3 | |
| 5/21 20:00 | 116.2 | ↓-0.4 | |
| 5/21 20:10 | 115.5 | ↓-0.7 | |
| 5/21 20:20 | 114.7 | ↓-0.8 | |
| 5/21 20:30 | 113.6 | ↓-1.1 | |
| 5/21 20:40 | 112.4 | ↓-1.2 | |
| 5/21 20:50 | 111.0 | ↓-1.4 | |
| 5/21 21:00 | 109.4 | ↓-1.6 | |
| 5/21 21:10 | 107.7 | ↓-1.7 | |
| 5/21 21:20 | 105.9 | ↓-1.8 | |
| 5/21 21:30 | 104.0 | ↓-1.9 | |
| 5/21 21:40 | 102.0 | ↓-2.0 | |
| 5/21 21:50 | 100.0 | ↓-2.0 | |
| 5/21 22:00 | 98.0 | ↓-2.0 | |
| 5/21 22:10 | 96.1 | ↓-1.9 | |
| 5/21 22:20 | 94.3 | ↓-1.8 | |
| 5/21 22:30 | 92.7 | ↓-1.6 | |
| 5/21 22:40 | 91.2 | ↓-1.5 | |
| 5/21 22:50 | 89.8 | ↓-1.4 | |
| 5/21 23:00 | 88.7 | ↓-1.1 | |
| 5/21 23:10 | 87.9 | ↓-0.8 | |
| 5/21 23:20 | 87.2 | ↓-0.7 | |
| 5/21 23:30 | 86.8 | ↓-0.4 | |
| 5/21 23:40 | 86.6 | ↓-0.2 | 干潮 |
| 5/21 23:50 | 86.6 | 0 |