| 満潮 | 干潮 | 満潮 | 干潮 |
|
12
(月) |
06:09 | 00:55 | 21:15 | 13:37 |
| 109cm | 82cm | 103cm | 8cm | |
|
||||
那珂湊（茨城）2031年05月12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 |
|---|---|---|---|
| 5/12 00:00 | 83.3 | ↓-0.8 | |
| 5/12 00:10 | 82.6 | ↓-0.7 | |
| 5/12 00:20 | 82.1 | ↓-0.5 | |
| 5/12 00:30 | 81.7 | ↓-0.4 | |
| 5/12 00:40 | 81.4 | ↓-0.3 | |
| 5/12 00:50 | 81.3 | ↓-0.1 | 干潮 |
| 5/12 01:00 | 81.3 | 0 | |
| 5/12 01:10 | 81.4 | ↑0.1 | |
| 5/12 01:20 | 81.7 | ↑0.3 | |
| 5/12 01:30 | 82.1 | ↑0.4 | |
| 5/12 01:40 | 82.6 | ↑0.5 | |
| 5/12 01:50 | 83.3 | ↑0.7 | |
| 5/12 02:00 | 84.0 | ↑0.7 | |
| 5/12 02:10 | 84.9 | ↑0.9 | |
| 5/12 02:20 | 85.8 | ↑0.9 | |
| 5/12 02:30 | 86.8 | ↑1.0 | |
| 5/12 02:40 | 87.9 | ↑1.1 | |
| 5/12 02:50 | 89.1 | ↑1.2 | |
| 5/12 03:00 | 90.3 | ↑1.2 | |
| 5/12 03:10 | 91.6 | ↑1.3 | |
| 5/12 03:20 | 92.8 | ↑1.2 | |
| 5/12 03:30 | 94.1 | ↑1.3 | |
| 5/12 03:40 | 95.5 | ↑1.4 | |
| 5/12 03:50 | 96.8 | ↑1.3 | |
| 5/12 04:00 | 98.1 | ↑1.3 | |
| 5/12 04:10 | 99.3 | ↑1.2 | |
| 5/12 04:20 | 100.6 | ↑1.3 | |
| 5/12 04:30 | 101.8 | ↑1.2 | |
| 5/12 04:40 | 102.9 | ↑1.1 | |
| 5/12 04:50 | 103.9 | ↑1.0 | |
| 5/12 05:00 | 104.9 | ↑1.0 | |
| 5/12 05:10 | 105.8 | ↑0.9 | |
| 5/12 05:20 | 106.5 | ↑0.7 | |
| 5/12 05:30 | 107.2 | ↑0.7 | |
| 5/12 05:40 | 107.7 | ↑0.5 | |
| 5/12 05:50 | 108.1 | ↑0.4 | |
| 5/12 06:00 | 108.3 | ↑0.2 | 満潮 |
| 5/12 06:10 | 108.3 | 0 | |
| 5/12 06:20 | 108.2 | ↓-0.1 | |
| 5/12 06:30 | 107.9 | ↓-0.3 | |
| 5/12 06:40 | 107.4 | ↓-0.5 | |
| 5/12 06:50 | 106.8 | ↓-0.6 | |
| 5/12 07:00 | 105.9 | ↓-0.9 | |
| 5/12 07:10 | 104.8 | ↓-1.1 | |
| 5/12 07:20 | 103.5 | ↓-1.3 | |
| 5/12 07:30 | 102.0 | ↓-1.5 | |
| 5/12 07:40 | 100.2 | ↓-1.8 | |
| 5/12 07:50 | 98.3 | ↓-1.9 | |
| 5/12 08:00 | 96.2 | ↓-2.1 | |
| 5/12 08:10 | 93.8 | ↓-2.4 | |
| 5/12 08:20 | 91.3 | ↓-2.5 | |
| 5/12 08:30 | 88.6 | ↓-2.7 | |
| 5/12 08:40 | 85.7 | ↓-2.9 | |
| 5/12 08:50 | 82.7 | ↓-3.0 | |
| 5/12 09:00 | 79.5 | ↓-3.2 | |
| 5/12 09:10 | 76.2 | ↓-3.3 | |
| 5/12 09:20 | 72.7 | ↓-3.5 | |
| 5/12 09:30 | 69.2 | ↓-3.5 | |
| 5/12 09:40 | 65.6 | ↓-3.6 | |
| 5/12 09:50 | 62.0 | ↓-3.6 | |
| 5/12 10:00 | 58.3 | ↓-3.7 | 最大潮位差 |
| 5/12 10:10 | 54.6 | ↓-3.7 | 最大潮位差 |
| 5/12 10:20 | 51.0 | ↓-3.6 | |
| 5/12 10:30 | 47.3 | ↓-3.7 | 最大潮位差 |
| 5/12 10:40 | 43.7 | ↓-3.6 | |
| 5/12 10:50 | 40.2 | ↓-3.5 | |
| 5/12 11:00 | 36.8 | ↓-3.4 | |
| 5/12 11:10 | 33.5 | ↓-3.3 | |
| 5/12 11:20 | 30.4 | ↓-3.1 | |
| 5/12 11:30 | 27.4 | ↓-3.0 | |
| 5/12 11:40 | 24.6 | ↓-2.8 | |
| 5/12 11:50 | 21.9 | ↓-2.7 | |
| 5/12 12:00 | 19.5 | ↓-2.4 | |
| 5/12 12:10 | 17.2 | ↓-2.3 | |
| 5/12 12:20 | 15.2 | ↓-2.0 | |
| 5/12 12:30 | 13.5 | ↓-1.7 | |
| 5/12 12:40 | 11.9 | ↓-1.6 | |
| 5/12 12:50 | 10.7 | ↓-1.2 | |
| 5/12 13:00 | 9.6 | ↓-1.1 | |
| 5/12 13:10 | 8.8 | ↓-0.8 | |
| 5/12 13:20 | 8.3 | ↓-0.5 | |
| 5/12 13:30 | 8.0 | ↓-0.3 | 干潮 |
| 5/12 13:40 | 8.0 | 0 | |
| 5/12 13:50 | 8.2 | ↑0.2 | |
| 5/12 14:00 | 8.7 | ↑0.5 | |
| 5/12 14:10 | 9.4 | ↑0.7 | |
| 5/12 14:20 | 10.3 | ↑0.9 | |
| 5/12 14:30 | 11.4 | ↑1.1 | |
| 5/12 14:40 | 12.8 | ↑1.4 | |
| 5/12 14:50 | 14.4 | ↑1.6 | |
| 5/12 15:00 | 16.1 | ↑1.7 | |
| 5/12 15:10 | 18.1 | ↑2.0 | |
| 5/12 15:20 | 20.2 | ↑2.1 | |
| 5/12 15:30 | 22.5 | ↑2.3 | |
| 5/12 15:40 | 25.0 | ↑2.5 | |
| 5/12 15:50 | 27.6 | ↑2.6 | |
| 5/12 16:00 | 30.3 | ↑2.7 | |
| 5/12 16:10 | 33.1 | ↑2.8 | |
| 5/12 16:20 | 36.1 | ↑3.0 | |
| 5/12 16:30 | 39.1 | ↑3.0 | |
| 5/12 16:40 | 42.2 | ↑3.1 | |
| 5/12 16:50 | 45.4 | ↑3.2 | |
| 5/12 17:00 | 48.6 | ↑3.2 | |
| 5/12 17:10 | 51.8 | ↑3.2 | |
| 5/12 17:20 | 55.1 | ↑3.3 | |
| 5/12 17:30 | 58.4 | ↑3.3 | |
| 5/12 17:40 | 61.6 | ↑3.2 | |
| 5/12 17:50 | 64.8 | ↑3.2 | |
| 5/12 18:00 | 68.0 | ↑3.2 | |
| 5/12 18:10 | 71.1 | ↑3.1 | |
| 5/12 18:20 | 74.2 | ↑3.1 | |
| 5/12 18:30 | 77.1 | ↑2.9 | |
| 5/12 18:40 | 80.0 | ↑2.9 | |
| 5/12 18:50 | 82.7 | ↑2.7 | |
| 5/12 19:00 | 85.3 | ↑2.6 | |
| 5/12 19:10 | 87.7 | ↑2.4 | |
| 5/12 19:20 | 90.0 | ↑2.3 | |
| 5/12 19:30 | 92.1 | ↑2.1 | |
| 5/12 19:40 | 94.0 | ↑1.9 | |
| 5/12 19:50 | 95.8 | ↑1.8 | |
| 5/12 20:00 | 97.3 | ↑1.5 | |
| 5/12 20:10 | 98.7 | ↑1.4 | |
| 5/12 20:20 | 99.8 | ↑1.1 | |
| 5/12 20:30 | 100.8 | ↑1.0 | |
| 5/12 20:40 | 101.5 | ↑0.7 | |
| 5/12 20:50 | 102.0 | ↑0.5 | |
| 5/12 21:00 | 102.4 | ↑0.4 | |
| 5/12 21:10 | 102.6 | ↑0.2 | 満潮 |
| 5/12 21:20 | 102.5 | ↓-0.1 | |
| 5/12 21:30 | 102.3 | ↓-0.2 | |
| 5/12 21:40 | 102.0 | ↓-0.3 | |
| 5/12 21:50 | 101.5 | ↓-0.5 | |
| 5/12 22:00 | 100.8 | ↓-0.7 | |
| 5/12 22:10 | 100.0 | ↓-0.8 | |
| 5/12 22:20 | 99.2 | ↓-0.8 | |
| 5/12 22:30 | 98.2 | ↓-1.0 | |
| 5/12 22:40 | 97.1 | ↓-1.1 | |
| 5/12 22:50 | 96.0 | ↓-1.1 | |
| 5/12 23:00 | 94.8 | ↓-1.2 | |
| 5/12 23:10 | 93.6 | ↓-1.2 | |
| 5/12 23:20 | 92.4 | ↓-1.2 | |
| 5/12 23:30 | 91.2 | ↓-1.2 | |
| 5/12 23:40 | 90.0 | ↓-1.2 | |
| 5/12 23:50 | 88.9 | ↓-1.1 |