| 満潮 | 干潮 | 満潮 | 干潮 |
|
21
(日) |
00:30 | 07:27 | 13:31 | 18:56 |
| 110cm | 41cm | 89cm | 57cm | |
|
||||
那珂湊（茨城）2051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 | 108.6 | ↑0.6 | |
| 5/21 00:10 | 109.1 | ↑0.5 | |
| 5/21 00:20 | 109.4 | ↑0.3 | 満潮 |
| 5/21 00:30 | 109.5 | ↑0.1 | 満潮 |
| 5/21 00:40 | 109.4 | ↓-0.1 | |
| 5/21 00:50 | 109.1 | ↓-0.3 | |
| 5/21 01:00 | 108.6 | ↓-0.5 | |
| 5/21 01:10 | 107.9 | ↓-0.7 | |
| 5/21 01:20 | 107.0 | ↓-0.9 | |
| 5/21 01:30 | 105.9 | ↓-1.1 | |
| 5/21 01:40 | 104.7 | ↓-1.2 | |
| 5/21 01:50 | 103.3 | ↓-1.4 | |
| 5/21 02:00 | 101.7 | ↓-1.6 | |
| 5/21 02:10 | 100.0 | ↓-1.7 | |
| 5/21 02:20 | 98.1 | ↓-1.9 | |
| 5/21 02:30 | 96.1 | ↓-2.0 | |
| 5/21 02:40 | 94.0 | ↓-2.1 | |
| 5/21 02:50 | 91.8 | ↓-2.2 | |
| 5/21 03:00 | 89.5 | ↓-2.3 | |
| 5/21 03:10 | 87.1 | ↓-2.4 | |
| 5/21 03:20 | 84.6 | ↓-2.5 | |
| 5/21 03:30 | 82.1 | ↓-2.5 | |
| 5/21 03:40 | 79.6 | ↓-2.5 | |
| 5/21 03:50 | 77.0 | ↓-2.6 | 最大潮位差 |
| 5/21 04:00 | 74.4 | ↓-2.6 | 最大潮位差 |
| 5/21 04:10 | 71.8 | ↓-2.6 | 最大潮位差 |
| 5/21 04:20 | 69.2 | ↓-2.6 | 最大潮位差 |
| 5/21 04:30 | 66.7 | ↓-2.5 | |
| 5/21 04:40 | 64.2 | ↓-2.5 | |
| 5/21 04:50 | 61.8 | ↓-2.4 | |
| 5/21 05:00 | 59.4 | ↓-2.4 | |
| 5/21 05:10 | 57.1 | ↓-2.3 | |
| 5/21 05:20 | 55.0 | ↓-2.1 | |
| 5/21 05:30 | 52.9 | ↓-2.1 | |
| 5/21 05:40 | 51.0 | ↓-1.9 | |
| 5/21 05:50 | 49.1 | ↓-1.9 | |
| 5/21 06:00 | 47.5 | ↓-1.6 | |
| 5/21 06:10 | 46.0 | ↓-1.5 | |
| 5/21 06:20 | 44.7 | ↓-1.3 | |
| 5/21 06:30 | 43.5 | ↓-1.2 | |
| 5/21 06:40 | 42.5 | ↓-1.0 | |
| 5/21 06:50 | 41.7 | ↓-0.8 | |
| 5/21 07:00 | 41.1 | ↓-0.6 | |
| 5/21 07:10 | 40.7 | ↓-0.4 | |
| 5/21 07:20 | 40.5 | ↓-0.2 | 干潮 |
| 5/21 07:30 | 40.4 | ↓-0.1 | |
| 5/21 07:40 | 40.6 | ↑0.2 | |
| 5/21 07:50 | 41.0 | ↑0.4 | |
| 5/21 08:00 | 41.5 | ↑0.5 | |
| 5/21 08:10 | 42.3 | ↑0.8 | |
| 5/21 08:20 | 43.2 | ↑0.9 | |
| 5/21 08:30 | 44.2 | ↑1.0 | |
| 5/21 08:40 | 45.5 | ↑1.3 | |
| 5/21 08:50 | 46.9 | ↑1.4 | |
| 5/21 09:00 | 48.4 | ↑1.5 | |
| 5/21 09:10 | 50.1 | ↑1.7 | |
| 5/21 09:20 | 51.8 | ↑1.7 | |
| 5/21 09:30 | 53.7 | ↑1.9 | |
| 5/21 09:40 | 55.6 | ↑1.9 | |
| 5/21 09:50 | 57.6 | ↑2.0 | |
| 5/21 10:00 | 59.7 | ↑2.1 | |
| 5/21 10:10 | 61.8 | ↑2.1 | |
| 5/21 10:20 | 63.9 | ↑2.1 | |
| 5/21 10:30 | 66.0 | ↑2.1 | |
| 5/21 10:40 | 68.1 | ↑2.1 | |
| 5/21 10:50 | 70.1 | ↑2.0 | |
| 5/21 11:00 | 72.1 | ↑2.0 | |
| 5/21 11:10 | 74.1 | ↑2.0 | |
| 5/21 11:20 | 76.0 | ↑1.9 | |
| 5/21 11:30 | 77.8 | ↑1.8 | |
| 5/21 11:40 | 79.4 | ↑1.6 | |
| 5/21 11:50 | 81.0 | ↑1.6 | |
| 5/21 12:00 | 82.4 | ↑1.4 | |
| 5/21 12:10 | 83.8 | ↑1.4 | |
| 5/21 12:20 | 84.9 | ↑1.1 | |
| 5/21 12:30 | 86.0 | ↑1.1 | |
| 5/21 12:40 | 86.8 | ↑0.8 | |
| 5/21 12:50 | 87.5 | ↑0.7 | |
| 5/21 13:00 | 88.1 | ↑0.6 | |
| 5/21 13:10 | 88.5 | ↑0.4 | |
| 5/21 13:20 | 88.7 | ↑0.2 | |
| 5/21 13:30 | 88.8 | ↑0.1 | 満潮 |
| 5/21 13:40 | 88.7 | ↓-0.1 | |
| 5/21 13:50 | 88.5 | ↓-0.2 | |
| 5/21 14:00 | 88.1 | ↓-0.4 | |
| 5/21 14:10 | 87.5 | ↓-0.6 | |
| 5/21 14:20 | 86.9 | ↓-0.6 | |
| 5/21 14:30 | 86.1 | ↓-0.8 | |
| 5/21 14:40 | 85.1 | ↓-1.0 | |
| 5/21 14:50 | 84.1 | ↓-1.0 | |
| 5/21 15:00 | 83.0 | ↓-1.1 | |
| 5/21 15:10 | 81.7 | ↓-1.3 | |
| 5/21 15:20 | 80.4 | ↓-1.3 | |
| 5/21 15:30 | 79.0 | ↓-1.4 | |
| 5/21 15:40 | 77.6 | ↓-1.4 | |
| 5/21 15:50 | 76.1 | ↓-1.5 | |
| 5/21 16:00 | 74.5 | ↓-1.6 | |
| 5/21 16:10 | 73.0 | ↓-1.5 | |
| 5/21 16:20 | 71.4 | ↓-1.6 | |
| 5/21 16:30 | 69.9 | ↓-1.5 | |
| 5/21 16:40 | 68.4 | ↓-1.5 | |
| 5/21 16:50 | 66.9 | ↓-1.5 | |
| 5/21 17:00 | 65.4 | ↓-1.5 | |
| 5/21 17:10 | 64.0 | ↓-1.4 | |
| 5/21 17:20 | 62.7 | ↓-1.3 | |
| 5/21 17:30 | 61.5 | ↓-1.2 | |
| 5/21 17:40 | 60.3 | ↓-1.2 | |
| 5/21 17:50 | 59.3 | ↓-1.0 | |
| 5/21 18:00 | 58.4 | ↓-0.9 | |
| 5/21 18:10 | 57.6 | ↓-0.8 | |
| 5/21 18:20 | 57.0 | ↓-0.6 | |
| 5/21 18:30 | 56.5 | ↓-0.5 | |
| 5/21 18:40 | 56.2 | ↓-0.3 | |
| 5/21 18:50 | 56.0 | ↓-0.2 | 干潮 |
| 5/21 19:00 | 56.0 | 0 | |
| 5/21 19:10 | 56.2 | ↑0.2 | |
| 5/21 19:20 | 56.6 | ↑0.4 | |
| 5/21 19:30 | 57.1 | ↑0.5 | |
| 5/21 19:40 | 57.8 | ↑0.7 | |
| 5/21 19:50 | 58.7 | ↑0.9 | |
| 5/21 20:00 | 59.7 | ↑1.0 | |
| 5/21 20:10 | 60.9 | ↑1.2 | |
| 5/21 20:20 | 62.3 | ↑1.4 | |
| 5/21 20:30 | 63.8 | ↑1.5 | |
| 5/21 20:40 | 65.5 | ↑1.7 | |
| 5/21 20:50 | 67.3 | ↑1.8 | |
| 5/21 21:00 | 69.3 | ↑2.0 | |
| 5/21 21:10 | 71.3 | ↑2.0 | |
| 5/21 21:20 | 73.5 | ↑2.2 | |
| 5/21 21:30 | 75.7 | ↑2.2 | |
| 5/21 21:40 | 78.0 | ↑2.3 | |
| 5/21 21:50 | 80.4 | ↑2.4 | |
| 5/21 22:00 | 82.7 | ↑2.3 | |
| 5/21 22:10 | 85.1 | ↑2.4 | |
| 5/21 22:20 | 87.5 | ↑2.4 | |
| 5/21 22:30 | 89.9 | ↑2.4 | |
| 5/21 22:40 | 92.3 | ↑2.4 | |
| 5/21 22:50 | 94.6 | ↑2.3 | |
| 5/21 23:00 | 96.8 | ↑2.2 | |
| 5/21 23:10 | 98.9 | ↑2.1 | |
| 5/21 23:20 | 101.0 | ↑2.1 | |
| 5/21 23:30 | 102.9 | ↑1.9 | |
| 5/21 23:40 | 104.6 | ↑1.7 | |
| 5/21 23:50 | 106.3 | ↑1.7 |