| 満潮 | 干潮 | 満潮 | 干潮 |
|
21
(日) |
06:23 | 01:34 | 22:12 | 14:13 |
| 104cm | 88cm | 104cm | 17cm | |
|
||||
那珂湊（茨城）2056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 | 91.9 | ↓-0.8 | |
| 5/21 00:10 | 91.1 | ↓-0.8 | |
| 5/21 00:20 | 90.3 | ↓-0.8 | |
| 5/21 00:30 | 89.7 | ↓-0.6 | |
| 5/21 00:40 | 89.1 | ↓-0.6 | |
| 5/21 00:50 | 88.7 | ↓-0.4 | |
| 5/21 01:00 | 88.3 | ↓-0.4 | |
| 5/21 01:10 | 88.0 | ↓-0.3 | |
| 5/21 01:20 | 87.8 | ↓-0.2 | |
| 5/21 01:30 | 87.7 | ↓-0.1 | 干潮 |
| 5/21 01:40 | 87.8 | ↑0.1 | |
| 5/21 01:50 | 87.9 | ↑0.1 | |
| 5/21 02:00 | 88.1 | ↑0.2 | |
| 5/21 02:10 | 88.4 | ↑0.3 | |
| 5/21 02:20 | 88.8 | ↑0.4 | |
| 5/21 02:30 | 89.2 | ↑0.4 | |
| 5/21 02:40 | 89.8 | ↑0.6 | |
| 5/21 02:50 | 90.4 | ↑0.6 | |
| 5/21 03:00 | 91.0 | ↑0.6 | |
| 5/21 03:10 | 91.7 | ↑0.7 | |
| 5/21 03:20 | 92.5 | ↑0.8 | |
| 5/21 03:30 | 93.2 | ↑0.7 | |
| 5/21 03:40 | 94.0 | ↑0.8 | |
| 5/21 03:50 | 94.8 | ↑0.8 | |
| 5/21 04:00 | 95.7 | ↑0.9 | |
| 5/21 04:10 | 96.5 | ↑0.8 | |
| 5/21 04:20 | 97.3 | ↑0.8 | |
| 5/21 04:30 | 98.1 | ↑0.8 | |
| 5/21 04:40 | 98.9 | ↑0.8 | |
| 5/21 04:50 | 99.6 | ↑0.7 | |
| 5/21 05:00 | 100.3 | ↑0.7 | |
| 5/21 05:10 | 101.0 | ↑0.7 | |
| 5/21 05:20 | 101.5 | ↑0.5 | |
| 5/21 05:30 | 102.1 | ↑0.6 | |
| 5/21 05:40 | 102.5 | ↑0.4 | |
| 5/21 05:50 | 102.9 | ↑0.4 | |
| 5/21 06:00 | 103.2 | ↑0.3 | |
| 5/21 06:10 | 103.4 | ↑0.2 | |
| 5/21 06:20 | 103.4 | 0 | 満潮 |
| 5/21 06:30 | 103.4 | 0 | |
| 5/21 06:40 | 103.2 | ↓-0.2 | |
| 5/21 06:50 | 103.0 | ↓-0.2 | |
| 5/21 07:00 | 102.6 | ↓-0.4 | |
| 5/21 07:10 | 102.0 | ↓-0.6 | |
| 5/21 07:20 | 101.3 | ↓-0.7 | |
| 5/21 07:30 | 100.5 | ↓-0.8 | |
| 5/21 07:40 | 99.5 | ↓-1.0 | |
| 5/21 07:50 | 98.3 | ↓-1.2 | |
| 5/21 08:00 | 97.0 | ↓-1.3 | |
| 5/21 08:10 | 95.5 | ↓-1.5 | |
| 5/21 08:20 | 93.9 | ↓-1.6 | |
| 5/21 08:30 | 92.1 | ↓-1.8 | |
| 5/21 08:40 | 90.2 | ↓-1.9 | |
| 5/21 08:50 | 88.1 | ↓-2.1 | |
| 5/21 09:00 | 85.8 | ↓-2.3 | |
| 5/21 09:10 | 83.4 | ↓-2.4 | |
| 5/21 09:20 | 80.9 | ↓-2.5 | |
| 5/21 09:30 | 78.3 | ↓-2.6 | |
| 5/21 09:40 | 75.5 | ↓-2.8 | |
| 5/21 09:50 | 72.7 | ↓-2.8 | |
| 5/21 10:00 | 69.8 | ↓-2.9 | |
| 5/21 10:10 | 66.8 | ↓-3.0 | |
| 5/21 10:20 | 63.7 | ↓-3.1 | 最大潮位差 |
| 5/21 10:30 | 60.7 | ↓-3.0 | |
| 5/21 10:40 | 57.6 | ↓-3.1 | 最大潮位差 |
| 5/21 10:50 | 54.5 | ↓-3.1 | 最大潮位差 |
| 5/21 11:00 | 51.4 | ↓-3.1 | 最大潮位差 |
| 5/21 11:10 | 48.3 | ↓-3.1 | 最大潮位差 |
| 5/21 11:20 | 45.3 | ↓-3.0 | |
| 5/21 11:30 | 42.4 | ↓-2.9 | |
| 5/21 11:40 | 39.6 | ↓-2.8 | |
| 5/21 11:50 | 36.8 | ↓-2.8 | |
| 5/21 12:00 | 34.2 | ↓-2.6 | |
| 5/21 12:10 | 31.7 | ↓-2.5 | |
| 5/21 12:20 | 29.4 | ↓-2.3 | |
| 5/21 12:30 | 27.2 | ↓-2.2 | |
| 5/21 12:40 | 25.2 | ↓-2.0 | |
| 5/21 12:50 | 23.4 | ↓-1.8 | |
| 5/21 13:00 | 21.8 | ↓-1.6 | |
| 5/21 13:10 | 20.4 | ↓-1.4 | |
| 5/21 13:20 | 19.2 | ↓-1.2 | |
| 5/21 13:30 | 18.2 | ↓-1.0 | |
| 5/21 13:40 | 17.4 | ↓-0.8 | |
| 5/21 13:50 | 16.8 | ↓-0.6 | |
| 5/21 14:00 | 16.5 | ↓-0.3 | |
| 5/21 14:10 | 16.3 | ↓-0.2 | 干潮 |
| 5/21 14:20 | 16.4 | ↑0.1 | |
| 5/21 14:30 | 16.7 | ↑0.3 | |
| 5/21 14:40 | 17.1 | ↑0.4 | |
| 5/21 14:50 | 17.8 | ↑0.7 | |
| 5/21 15:00 | 18.7 | ↑0.9 | |
| 5/21 15:10 | 19.8 | ↑1.1 | |
| 5/21 15:20 | 21.0 | ↑1.2 | |
| 5/21 15:30 | 22.4 | ↑1.4 | |
| 5/21 15:40 | 24.0 | ↑1.6 | |
| 5/21 15:50 | 25.8 | ↑1.8 | |
| 5/21 16:00 | 27.6 | ↑1.8 | |
| 5/21 16:10 | 29.7 | ↑2.1 | |
| 5/21 16:20 | 31.8 | ↑2.1 | |
| 5/21 16:30 | 34.1 | ↑2.3 | |
| 5/21 16:40 | 36.5 | ↑2.4 | |
| 5/21 16:50 | 39.0 | ↑2.5 | |
| 5/21 17:00 | 41.5 | ↑2.5 | |
| 5/21 17:10 | 44.2 | ↑2.7 | |
| 5/21 17:20 | 46.9 | ↑2.7 | |
| 5/21 17:30 | 49.7 | ↑2.8 | |
| 5/21 17:40 | 52.5 | ↑2.8 | |
| 5/21 17:50 | 55.3 | ↑2.8 | |
| 5/21 18:00 | 58.2 | ↑2.9 | |
| 5/21 18:10 | 61.1 | ↑2.9 | |
| 5/21 18:20 | 64.0 | ↑2.9 | |
| 5/21 18:30 | 66.8 | ↑2.8 | |
| 5/21 18:40 | 69.7 | ↑2.9 | |
| 5/21 18:50 | 72.4 | ↑2.7 | |
| 5/21 19:00 | 75.2 | ↑2.8 | |
| 5/21 19:10 | 77.8 | ↑2.6 | |
| 5/21 19:20 | 80.4 | ↑2.6 | |
| 5/21 19:30 | 82.9 | ↑2.5 | |
| 5/21 19:40 | 85.3 | ↑2.4 | |
| 5/21 19:50 | 87.6 | ↑2.3 | |
| 5/21 20:00 | 89.7 | ↑2.1 | |
| 5/21 20:10 | 91.8 | ↑2.1 | |
| 5/21 20:20 | 93.6 | ↑1.8 | |
| 5/21 20:30 | 95.4 | ↑1.8 | |
| 5/21 20:40 | 96.9 | ↑1.5 | |
| 5/21 20:50 | 98.4 | ↑1.5 | |
| 5/21 21:00 | 99.6 | ↑1.2 | |
| 5/21 21:10 | 100.7 | ↑1.1 | |
| 5/21 21:20 | 101.6 | ↑0.9 | |
| 5/21 21:30 | 102.3 | ↑0.7 | |
| 5/21 21:40 | 102.9 | ↑0.6 | |
| 5/21 21:50 | 103.3 | ↑0.4 | |
| 5/21 22:00 | 103.5 | ↑0.2 | |
| 5/21 22:10 | 103.6 | ↑0.1 | 満潮 |
| 5/21 22:20 | 103.6 | 0 | |
| 5/21 22:30 | 103.4 | ↓-0.2 | |
| 5/21 22:40 | 103.0 | ↓-0.4 | |
| 5/21 22:50 | 102.6 | ↓-0.4 | |
| 5/21 23:00 | 102.0 | ↓-0.6 | |
| 5/21 23:10 | 101.4 | ↓-0.6 | |
| 5/21 23:20 | 100.7 | ↓-0.7 | |
| 5/21 23:30 | 99.9 | ↓-0.8 | |
| 5/21 23:40 | 99.0 | ↓-0.9 | |
| 5/21 23:50 | 98.1 | ↓-0.9 |