| 満潮 | 干潮 | 満潮 | 干潮 |
|
20
(日) |
03:56 | 10:57 | 18:12 | 23:12 |
| 120cm | -9cm | 121cm | 77cm | |
|
||||
那珂湊（茨城）2057年05月20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 |
|---|---|---|---|
| 5/20 00:00 | 76.2 | ↑1.7 | |
| 5/20 00:10 | 78.1 | ↑1.9 | |
| 5/20 00:20 | 80.2 | ↑2.1 | |
| 5/20 00:30 | 82.3 | ↑2.1 | |
| 5/20 00:40 | 84.6 | ↑2.3 | |
| 5/20 00:50 | 87.0 | ↑2.4 | |
| 5/20 01:00 | 89.4 | ↑2.4 | |
| 5/20 01:10 | 91.8 | ↑2.4 | |
| 5/20 01:20 | 94.3 | ↑2.5 | |
| 5/20 01:30 | 96.7 | ↑2.4 | |
| 5/20 01:40 | 99.2 | ↑2.5 | |
| 5/20 01:50 | 101.5 | ↑2.3 | |
| 5/20 02:00 | 103.9 | ↑2.4 | |
| 5/20 02:10 | 106.1 | ↑2.2 | |
| 5/20 02:20 | 108.2 | ↑2.1 | |
| 5/20 02:30 | 110.2 | ↑2.0 | |
| 5/20 02:40 | 112.0 | ↑1.8 | |
| 5/20 02:50 | 113.7 | ↑1.7 | |
| 5/20 03:00 | 115.2 | ↑1.5 | |
| 5/20 03:10 | 116.4 | ↑1.2 | |
| 5/20 03:20 | 117.5 | ↑1.1 | |
| 5/20 03:30 | 118.3 | ↑0.8 | |
| 5/20 03:40 | 118.8 | ↑0.5 | |
| 5/20 03:50 | 119.1 | ↑0.3 | 満潮 |
| 5/20 04:00 | 119.1 | 0 | |
| 5/20 04:10 | 118.8 | ↓-0.3 | |
| 5/20 04:20 | 118.2 | ↓-0.6 | |
| 5/20 04:30 | 117.4 | ↓-0.8 | |
| 5/20 04:40 | 116.2 | ↓-1.2 | |
| 5/20 04:50 | 114.7 | ↓-1.5 | |
| 5/20 05:00 | 112.9 | ↓-1.8 | |
| 5/20 05:10 | 110.8 | ↓-2.1 | |
| 5/20 05:20 | 108.4 | ↓-2.4 | |
| 5/20 05:30 | 105.7 | ↓-2.7 | |
| 5/20 05:40 | 102.8 | ↓-2.9 | |
| 5/20 05:50 | 99.5 | ↓-3.3 | |
| 5/20 06:00 | 96.0 | ↓-3.5 | |
| 5/20 06:10 | 92.3 | ↓-3.7 | |
| 5/20 06:20 | 88.3 | ↓-4.0 | |
| 5/20 06:30 | 84.1 | ↓-4.2 | |
| 5/20 06:40 | 79.8 | ↓-4.3 | |
| 5/20 06:50 | 75.3 | ↓-4.5 | |
| 5/20 07:00 | 70.6 | ↓-4.7 | |
| 5/20 07:10 | 65.9 | ↓-4.7 | |
| 5/20 07:20 | 61.0 | ↓-4.9 | 最大潮位差 |
| 5/20 07:30 | 56.1 | ↓-4.9 | 最大潮位差 |
| 5/20 07:40 | 51.2 | ↓-4.9 | 最大潮位差 |
| 5/20 07:50 | 46.3 | ↓-4.9 | 最大潮位差 |
| 5/20 08:00 | 41.5 | ↓-4.8 | |
| 5/20 08:10 | 36.7 | ↓-4.8 | |
| 5/20 08:20 | 32.0 | ↓-4.7 | |
| 5/20 08:30 | 27.5 | ↓-4.5 | |
| 5/20 08:40 | 23.1 | ↓-4.4 | |
| 5/20 08:50 | 18.9 | ↓-4.2 | |
| 5/20 09:00 | 14.9 | ↓-4.0 | |
| 5/20 09:10 | 11.1 | ↓-3.8 | |
| 5/20 09:20 | 7.7 | ↓-3.4 | |
| 5/20 09:30 | 4.5 | ↓-3.2 | |
| 5/20 09:40 | 1.6 | ↓-2.9 | |
| 5/20 09:50 | -1.0 | ↓-2.6 | |
| 5/20 10:00 | -3.3 | ↓-2.3 | |
| 5/20 10:10 | -5.1 | ↓-1.8 | |
| 5/20 10:20 | -6.7 | ↓-1.6 | |
| 5/20 10:30 | -7.8 | ↓-1.1 | |
| 5/20 10:40 | -8.6 | ↓-0.8 | |
| 5/20 10:50 | -9.1 | ↓-0.5 | 干潮 |
| 5/20 11:00 | -9.1 | 0 | |
| 5/20 11:10 | -8.8 | ↑0.3 | |
| 5/20 11:20 | -8.1 | ↑0.7 | |
| 5/20 11:30 | -7.0 | ↑1.1 | |
| 5/20 11:40 | -5.6 | ↑1.4 | |
| 5/20 11:50 | -3.9 | ↑1.7 | |
| 5/20 12:00 | -1.8 | ↑2.1 | |
| 5/20 12:10 | 0.6 | ↑2.4 | |
| 5/20 12:20 | 3.3 | ↑2.7 | |
| 5/20 12:30 | 6.3 | ↑3.0 | |
| 5/20 12:40 | 9.5 | ↑3.2 | |
| 5/20 12:50 | 13.0 | ↑3.5 | |
| 5/20 13:00 | 16.7 | ↑3.7 | |
| 5/20 13:10 | 20.6 | ↑3.9 | |
| 5/20 13:20 | 24.7 | ↑4.1 | |
| 5/20 13:30 | 29.0 | ↑4.3 | |
| 5/20 13:40 | 33.4 | ↑4.4 | |
| 5/20 13:50 | 37.9 | ↑4.5 | |
| 5/20 14:00 | 42.4 | ↑4.5 | |
| 5/20 14:10 | 47.1 | ↑4.7 | |
| 5/20 14:20 | 51.7 | ↑4.6 | |
| 5/20 14:30 | 56.4 | ↑4.7 | |
| 5/20 14:40 | 61.1 | ↑4.7 | |
| 5/20 14:50 | 65.7 | ↑4.6 | |
| 5/20 15:00 | 70.3 | ↑4.6 | |
| 5/20 15:10 | 74.8 | ↑4.5 | |
| 5/20 15:20 | 79.1 | ↑4.3 | |
| 5/20 15:30 | 83.4 | ↑4.3 | |
| 5/20 15:40 | 87.5 | ↑4.1 | |
| 5/20 15:50 | 91.4 | ↑3.9 | |
| 5/20 16:00 | 95.1 | ↑3.7 | |
| 5/20 16:10 | 98.6 | ↑3.5 | |
| 5/20 16:20 | 101.9 | ↑3.3 | |
| 5/20 16:30 | 105.0 | ↑3.1 | |
| 5/20 16:40 | 107.8 | ↑2.8 | |
| 5/20 16:50 | 110.3 | ↑2.5 | |
| 5/20 17:00 | 112.5 | ↑2.2 | |
| 5/20 17:10 | 114.5 | ↑2.0 | |
| 5/20 17:20 | 116.2 | ↑1.7 | |
| 5/20 17:30 | 117.5 | ↑1.3 | |
| 5/20 17:40 | 118.6 | ↑1.1 | |
| 5/20 17:50 | 119.4 | ↑0.8 | |
| 5/20 18:00 | 119.8 | ↑0.4 | |
| 5/20 18:10 | 120.0 | ↑0.2 | 満潮 |
| 5/20 18:20 | 119.9 | ↓-0.1 | |
| 5/20 18:30 | 119.5 | ↓-0.4 | |
| 5/20 18:40 | 118.9 | ↓-0.6 | |
| 5/20 18:50 | 118.0 | ↓-0.9 | |
| 5/20 19:00 | 116.9 | ↓-1.1 | |
| 5/20 19:10 | 115.5 | ↓-1.4 | |
| 5/20 19:20 | 114.0 | ↓-1.5 | |
| 5/20 19:30 | 112.3 | ↓-1.7 | |
| 5/20 19:40 | 110.4 | ↓-1.9 | |
| 5/20 19:50 | 108.4 | ↓-2.0 | |
| 5/20 20:00 | 106.3 | ↓-2.1 | |
| 5/20 20:10 | 104.1 | ↓-2.2 | |
| 5/20 20:20 | 101.8 | ↓-2.3 | |
| 5/20 20:30 | 99.5 | ↓-2.3 | |
| 5/20 20:40 | 97.3 | ↓-2.2 | |
| 5/20 20:50 | 95.0 | ↓-2.3 | |
| 5/20 21:00 | 92.7 | ↓-2.3 | |
| 5/20 21:10 | 90.6 | ↓-2.1 | |
| 5/20 21:20 | 88.5 | ↓-2.1 | |
| 5/20 21:30 | 86.5 | ↓-2.0 | |
| 5/20 21:40 | 84.7 | ↓-1.8 | |
| 5/20 21:50 | 83.0 | ↓-1.7 | |
| 5/20 22:00 | 81.4 | ↓-1.6 | |
| 5/20 22:10 | 80.1 | ↓-1.3 | |
| 5/20 22:20 | 78.9 | ↓-1.2 | |
| 5/20 22:30 | 77.9 | ↓-1.0 | |
| 5/20 22:40 | 77.2 | ↓-0.7 | |
| 5/20 22:50 | 76.6 | ↓-0.6 | |
| 5/20 23:00 | 76.3 | ↓-0.3 | |
| 5/20 23:10 | 76.1 | ↓-0.2 | 干潮 |
| 5/20 23:20 | 76.2 | ↑0.1 | |
| 5/20 23:30 | 76.5 | ↑0.3 | |
| 5/20 23:40 | 77.0 | ↑0.5 | |
| 5/20 23:50 | 77.7 | ↑0.7 |