| 満潮 | 干潮 | 満潮 | 干潮 |
|
21
(日) |
01:52 | 08:45 | 15:33 | 20:47 |
| 115cm | 14cm | 109cm | 65cm | |
|
||||
那珂湊（茨城）2062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 | 100.3 | ↑2.2 | |
| 5/21 00:10 | 102.5 | ↑2.2 | |
| 5/21 00:20 | 104.6 | ↑2.1 | |
| 5/21 00:30 | 106.4 | ↑1.8 | |
| 5/21 00:40 | 108.1 | ↑1.7 | |
| 5/21 00:50 | 109.7 | ↑1.6 | |
| 5/21 01:00 | 111.0 | ↑1.3 | |
| 5/21 01:10 | 112.1 | ↑1.1 | |
| 5/21 01:20 | 113.0 | ↑0.9 | |
| 5/21 01:30 | 113.7 | ↑0.7 | |
| 5/21 01:40 | 114.1 | ↑0.4 | |
| 5/21 01:50 | 114.2 | ↑0.1 | 満潮 |
| 5/21 02:00 | 114.1 | ↓-0.1 | |
| 5/21 02:10 | 113.8 | ↓-0.3 | |
| 5/21 02:20 | 113.2 | ↓-0.6 | |
| 5/21 02:30 | 112.3 | ↓-0.9 | |
| 5/21 02:40 | 111.1 | ↓-1.2 | |
| 5/21 02:50 | 109.7 | ↓-1.4 | |
| 5/21 03:00 | 108.1 | ↓-1.6 | |
| 5/21 03:10 | 106.2 | ↓-1.9 | |
| 5/21 03:20 | 104.0 | ↓-2.2 | |
| 5/21 03:30 | 101.7 | ↓-2.3 | |
| 5/21 03:40 | 99.1 | ↓-2.6 | |
| 5/21 03:50 | 96.3 | ↓-2.8 | |
| 5/21 04:00 | 93.3 | ↓-3.0 | |
| 5/21 04:10 | 90.1 | ↓-3.2 | |
| 5/21 04:20 | 86.8 | ↓-3.3 | |
| 5/21 04:30 | 83.3 | ↓-3.5 | |
| 5/21 04:40 | 79.7 | ↓-3.6 | |
| 5/21 04:50 | 76.0 | ↓-3.7 | |
| 5/21 05:00 | 72.3 | ↓-3.7 | |
| 5/21 05:10 | 68.4 | ↓-3.9 | 最大潮位差 |
| 5/21 05:20 | 64.6 | ↓-3.8 | |
| 5/21 05:30 | 60.7 | ↓-3.9 | 最大潮位差 |
| 5/21 05:40 | 56.8 | ↓-3.9 | 最大潮位差 |
| 5/21 05:50 | 53.0 | ↓-3.8 | |
| 5/21 06:00 | 49.2 | ↓-3.8 | |
| 5/21 06:10 | 45.6 | ↓-3.6 | |
| 5/21 06:20 | 42.0 | ↓-3.6 | |
| 5/21 06:30 | 38.5 | ↓-3.5 | |
| 5/21 06:40 | 35.2 | ↓-3.3 | |
| 5/21 06:50 | 32.1 | ↓-3.1 | |
| 5/21 07:00 | 29.1 | ↓-3.0 | |
| 5/21 07:10 | 26.4 | ↓-2.7 | |
| 5/21 07:20 | 23.9 | ↓-2.5 | |
| 5/21 07:30 | 21.6 | ↓-2.3 | |
| 5/21 07:40 | 19.6 | ↓-2.0 | |
| 5/21 07:50 | 17.9 | ↓-1.7 | |
| 5/21 08:00 | 16.4 | ↓-1.5 | |
| 5/21 08:10 | 15.2 | ↓-1.2 | |
| 5/21 08:20 | 14.3 | ↓-0.9 | |
| 5/21 08:30 | 13.8 | ↓-0.5 | |
| 5/21 08:40 | 13.5 | ↓-0.3 | 干潮 |
| 5/21 08:50 | 13.5 | 0 | |
| 5/21 09:00 | 13.8 | ↑0.3 | |
| 5/21 09:10 | 14.5 | ↑0.7 | |
| 5/21 09:20 | 15.4 | ↑0.9 | |
| 5/21 09:30 | 16.6 | ↑1.2 | |
| 5/21 09:40 | 18.1 | ↑1.5 | |
| 5/21 09:50 | 19.9 | ↑1.8 | |
| 5/21 10:00 | 21.9 | ↑2.0 | |
| 5/21 10:10 | 24.2 | ↑2.3 | |
| 5/21 10:20 | 26.7 | ↑2.5 | |
| 5/21 10:30 | 29.4 | ↑2.7 | |
| 5/21 10:40 | 32.3 | ↑2.9 | |
| 5/21 10:50 | 35.4 | ↑3.1 | |
| 5/21 11:00 | 38.6 | ↑3.2 | |
| 5/21 11:10 | 42.0 | ↑3.4 | |
| 5/21 11:20 | 45.4 | ↑3.4 | |
| 5/21 11:30 | 49.0 | ↑3.6 | |
| 5/21 11:40 | 52.6 | ↑3.6 | |
| 5/21 11:50 | 56.3 | ↑3.7 | |
| 5/21 12:00 | 60.0 | ↑3.7 | |
| 5/21 12:10 | 63.6 | ↑3.6 | |
| 5/21 12:20 | 67.3 | ↑3.7 | |
| 5/21 12:30 | 70.9 | ↑3.6 | |
| 5/21 12:40 | 74.4 | ↑3.5 | |
| 5/21 12:50 | 77.9 | ↑3.5 | |
| 5/21 13:00 | 81.2 | ↑3.3 | |
| 5/21 13:10 | 84.5 | ↑3.3 | |
| 5/21 13:20 | 87.5 | ↑3.0 | |
| 5/21 13:30 | 90.4 | ↑2.9 | |
| 5/21 13:40 | 93.2 | ↑2.8 | |
| 5/21 13:50 | 95.7 | ↑2.5 | |
| 5/21 14:00 | 98.0 | ↑2.3 | |
| 5/21 14:10 | 100.1 | ↑2.1 | |
| 5/21 14:20 | 102.0 | ↑1.9 | |
| 5/21 14:30 | 103.7 | ↑1.7 | |
| 5/21 14:40 | 105.1 | ↑1.4 | |
| 5/21 14:50 | 106.2 | ↑1.1 | |
| 5/21 15:00 | 107.2 | ↑1.0 | |
| 5/21 15:10 | 107.8 | ↑0.6 | |
| 5/21 15:20 | 108.2 | ↑0.4 | |
| 5/21 15:30 | 108.4 | ↑0.2 | 満潮 |
| 5/21 15:40 | 108.3 | ↓-0.1 | |
| 5/21 15:50 | 108.0 | ↓-0.3 | |
| 5/21 16:00 | 107.5 | ↓-0.5 | |
| 5/21 16:10 | 106.7 | ↓-0.8 | |
| 5/21 16:20 | 105.8 | ↓-0.9 | |
| 5/21 16:30 | 104.6 | ↓-1.2 | |
| 5/21 16:40 | 103.3 | ↓-1.3 | |
| 5/21 16:50 | 101.8 | ↓-1.5 | |
| 5/21 17:00 | 100.1 | ↓-1.7 | |
| 5/21 17:10 | 98.3 | ↓-1.8 | |
| 5/21 17:20 | 96.4 | ↓-1.9 | |
| 5/21 17:30 | 94.4 | ↓-2.0 | |
| 5/21 17:40 | 92.3 | ↓-2.1 | |
| 5/21 17:50 | 90.2 | ↓-2.1 | |
| 5/21 18:00 | 88.0 | ↓-2.2 | |
| 5/21 18:10 | 85.8 | ↓-2.2 | |
| 5/21 18:20 | 83.7 | ↓-2.1 | |
| 5/21 18:30 | 81.5 | ↓-2.2 | |
| 5/21 18:40 | 79.4 | ↓-2.1 | |
| 5/21 18:50 | 77.4 | ↓-2.0 | |
| 5/21 19:00 | 75.5 | ↓-1.9 | |
| 5/21 19:10 | 73.6 | ↓-1.9 | |
| 5/21 19:20 | 71.9 | ↓-1.7 | |
| 5/21 19:30 | 70.4 | ↓-1.5 | |
| 5/21 19:40 | 69.0 | ↓-1.4 | |
| 5/21 19:50 | 67.7 | ↓-1.3 | |
| 5/21 20:00 | 66.7 | ↓-1.0 | |
| 5/21 20:10 | 65.8 | ↓-0.9 | |
| 5/21 20:20 | 65.2 | ↓-0.6 | |
| 5/21 20:30 | 64.7 | ↓-0.5 | |
| 5/21 20:40 | 64.5 | ↓-0.2 | 干潮 |
| 5/21 20:50 | 64.5 | 0 | |
| 5/21 21:00 | 64.7 | ↑0.2 | |
| 5/21 21:10 | 65.1 | ↑0.4 | |
| 5/21 21:20 | 65.7 | ↑0.6 | |
| 5/21 21:30 | 66.6 | ↑0.9 | |
| 5/21 21:40 | 67.6 | ↑1.0 | |
| 5/21 21:50 | 68.9 | ↑1.3 | |
| 5/21 22:00 | 70.3 | ↑1.4 | |
| 5/21 22:10 | 71.9 | ↑1.6 | |
| 5/21 22:20 | 73.7 | ↑1.8 | |
| 5/21 22:30 | 75.7 | ↑2.0 | |
| 5/21 22:40 | 77.7 | ↑2.0 | |
| 5/21 22:50 | 79.9 | ↑2.2 | |
| 5/21 23:00 | 82.2 | ↑2.3 | |
| 5/21 23:10 | 84.5 | ↑2.3 | |
| 5/21 23:20 | 86.9 | ↑2.4 | |
| 5/21 23:30 | 89.4 | ↑2.5 | |
| 5/21 23:40 | 91.9 | ↑2.5 | |
| 5/21 23:50 | 94.4 | ↑2.5 |