| 満潮 | 干潮 | 満潮 | 干潮 |
|
20
(月) |
04:55 | 12:49 | 20:54 | - |
| 118cm | -4cm | 108cm | - | |
|
||||
那珂湊（茨城）2041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 | 92.1 | 0 | |
| 5/20 00:10 | 92.2 | ↑0.1 | |
| 5/20 00:20 | 92.4 | ↑0.2 | |
| 5/20 00:30 | 92.8 | ↑0.4 | |
| 5/20 00:40 | 93.3 | ↑0.5 | |
| 5/20 00:50 | 93.9 | ↑0.6 | |
| 5/20 01:00 | 94.7 | ↑0.8 | |
| 5/20 01:10 | 95.5 | ↑0.8 | |
| 5/20 01:20 | 96.5 | ↑1.0 | |
| 5/20 01:30 | 97.5 | ↑1.0 | |
| 5/20 01:40 | 98.6 | ↑1.1 | |
| 5/20 01:50 | 99.7 | ↑1.1 | |
| 5/20 02:00 | 100.9 | ↑1.2 | |
| 5/20 02:10 | 102.2 | ↑1.3 | |
| 5/20 02:20 | 103.5 | ↑1.3 | |
| 5/20 02:30 | 104.8 | ↑1.3 | |
| 5/20 02:40 | 106.0 | ↑1.2 | |
| 5/20 02:50 | 107.3 | ↑1.3 | |
| 5/20 03:00 | 108.6 | ↑1.3 | |
| 5/20 03:10 | 109.8 | ↑1.2 | |
| 5/20 03:20 | 110.9 | ↑1.1 | |
| 5/20 03:30 | 112.0 | ↑1.1 | |
| 5/20 03:40 | 113.1 | ↑1.1 | |
| 5/20 03:50 | 114.0 | ↑0.9 | |
| 5/20 04:00 | 114.8 | ↑0.8 | |
| 5/20 04:10 | 115.5 | ↑0.7 | |
| 5/20 04:20 | 116.1 | ↑0.6 | |
| 5/20 04:30 | 116.6 | ↑0.5 | |
| 5/20 04:40 | 116.9 | ↑0.3 | |
| 5/20 04:50 | 117.0 | ↑0.1 | 満潮 |
| 5/20 05:00 | 117.0 | 0 | |
| 5/20 05:10 | 116.8 | ↓-0.2 | |
| 5/20 05:20 | 116.5 | ↓-0.3 | |
| 5/20 05:30 | 115.9 | ↓-0.6 | |
| 5/20 05:40 | 115.2 | ↓-0.7 | |
| 5/20 05:50 | 114.2 | ↓-1.0 | |
| 5/20 06:00 | 113.0 | ↓-1.2 | |
| 5/20 06:10 | 111.7 | ↓-1.3 | |
| 5/20 06:20 | 110.1 | ↓-1.6 | |
| 5/20 06:30 | 108.3 | ↓-1.8 | |
| 5/20 06:40 | 106.2 | ↓-2.1 | |
| 5/20 06:50 | 104.0 | ↓-2.2 | |
| 5/20 07:00 | 101.5 | ↓-2.5 | |
| 5/20 07:10 | 98.9 | ↓-2.6 | |
| 5/20 07:20 | 96.0 | ↓-2.9 | |
| 5/20 07:30 | 93.0 | ↓-3.0 | |
| 5/20 07:40 | 89.7 | ↓-3.3 | |
| 5/20 07:50 | 86.3 | ↓-3.4 | |
| 5/20 08:00 | 82.7 | ↓-3.6 | |
| 5/20 08:10 | 79.0 | ↓-3.7 | |
| 5/20 08:20 | 75.1 | ↓-3.9 | |
| 5/20 08:30 | 71.1 | ↓-4.0 | |
| 5/20 08:40 | 67.1 | ↓-4.0 | |
| 5/20 08:50 | 62.9 | ↓-4.2 | |
| 5/20 09:00 | 58.7 | ↓-4.2 | |
| 5/20 09:10 | 54.5 | ↓-4.2 | |
| 5/20 09:20 | 50.3 | ↓-4.2 | |
| 5/20 09:30 | 46.0 | ↓-4.3 | 最大潮位差 |
| 5/20 09:40 | 41.8 | ↓-4.2 | |
| 5/20 09:50 | 37.7 | ↓-4.1 | |
| 5/20 10:00 | 33.7 | ↓-4.0 | |
| 5/20 10:10 | 29.7 | ↓-4.0 | |
| 5/20 10:20 | 25.9 | ↓-3.8 | |
| 5/20 10:30 | 22.3 | ↓-3.6 | |
| 5/20 10:40 | 18.8 | ↓-3.5 | |
| 5/20 10:50 | 15.5 | ↓-3.3 | |
| 5/20 11:00 | 12.4 | ↓-3.1 | |
| 5/20 11:10 | 9.6 | ↓-2.8 | |
| 5/20 11:20 | 6.9 | ↓-2.7 | |
| 5/20 11:30 | 4.6 | ↓-2.3 | |
| 5/20 11:40 | 2.5 | ↓-2.1 | |
| 5/20 11:50 | 0.7 | ↓-1.8 | |
| 5/20 12:00 | -0.9 | ↓-1.6 | |
| 5/20 12:10 | -2.1 | ↓-1.2 | |
| 5/20 12:20 | -3.1 | ↓-1.0 | |
| 5/20 12:30 | -3.8 | ↓-0.7 | |
| 5/20 12:40 | -4.2 | ↓-0.4 | 干潮 |
| 5/20 12:50 | -4.3 | ↓-0.1 | |
| 5/20 13:00 | -4.1 | ↑0.2 | |
| 5/20 13:10 | -3.6 | ↑0.5 | |
| 5/20 13:20 | -2.8 | ↑0.8 | |
| 5/20 13:30 | -1.8 | ↑1.0 | |
| 5/20 13:40 | -0.5 | ↑1.3 | |
| 5/20 13:50 | 1.0 | ↑1.5 | |
| 5/20 14:00 | 2.8 | ↑1.8 | |
| 5/20 14:10 | 4.7 | ↑1.9 | |
| 5/20 14:20 | 6.9 | ↑2.2 | |
| 5/20 14:30 | 9.4 | ↑2.5 | |
| 5/20 14:40 | 11.9 | ↑2.5 | |
| 5/20 14:50 | 14.7 | ↑2.8 | |
| 5/20 15:00 | 17.6 | ↑2.9 | |
| 5/20 15:10 | 20.7 | ↑3.1 | |
| 5/20 15:20 | 23.9 | ↑3.2 | |
| 5/20 15:30 | 27.2 | ↑3.3 | |
| 5/20 15:40 | 30.6 | ↑3.4 | |
| 5/20 15:50 | 34.1 | ↑3.5 | |
| 5/20 16:00 | 37.6 | ↑3.5 | |
| 5/20 16:10 | 41.2 | ↑3.6 | |
| 5/20 16:20 | 44.9 | ↑3.7 | |
| 5/20 16:30 | 48.5 | ↑3.6 | |
| 5/20 16:40 | 52.2 | ↑3.7 | |
| 5/20 16:50 | 55.8 | ↑3.6 | |
| 5/20 17:00 | 59.4 | ↑3.6 | |
| 5/20 17:10 | 63.0 | ↑3.6 | |
| 5/20 17:20 | 66.5 | ↑3.5 | |
| 5/20 17:30 | 70.0 | ↑3.5 | |
| 5/20 17:40 | 73.3 | ↑3.3 | |
| 5/20 17:50 | 76.6 | ↑3.3 | |
| 5/20 18:00 | 79.7 | ↑3.1 | |
| 5/20 18:10 | 82.8 | ↑3.1 | |
| 5/20 18:20 | 85.6 | ↑2.8 | |
| 5/20 18:30 | 88.3 | ↑2.7 | |
| 5/20 18:40 | 90.9 | ↑2.6 | |
| 5/20 18:50 | 93.3 | ↑2.4 | |
| 5/20 19:00 | 95.5 | ↑2.2 | |
| 5/20 19:10 | 97.5 | ↑2.0 | |
| 5/20 19:20 | 99.4 | ↑1.9 | |
| 5/20 19:30 | 101.0 | ↑1.6 | |
| 5/20 19:40 | 102.4 | ↑1.4 | |
| 5/20 19:50 | 103.7 | ↑1.3 | |
| 5/20 20:00 | 104.7 | ↑1.0 | |
| 5/20 20:10 | 105.5 | ↑0.8 | |
| 5/20 20:20 | 106.2 | ↑0.7 | |
| 5/20 20:30 | 106.7 | ↑0.5 | |
| 5/20 20:40 | 107.0 | ↑0.3 | |
| 5/20 20:50 | 107.1 | ↑0.1 | 満潮 |
| 5/20 21:00 | 107.0 | ↓-0.1 | |
| 5/20 21:10 | 106.9 | ↓-0.1 | |
| 5/20 21:20 | 106.5 | ↓-0.4 | |
| 5/20 21:30 | 106.1 | ↓-0.4 | |
| 5/20 21:40 | 105.6 | ↓-0.5 | |
| 5/20 21:50 | 104.9 | ↓-0.7 | |
| 5/20 22:00 | 104.2 | ↓-0.7 | |
| 5/20 22:10 | 103.5 | ↓-0.7 | |
| 5/20 22:20 | 102.7 | ↓-0.8 | |
| 5/20 22:30 | 101.9 | ↓-0.8 | |
| 5/20 22:40 | 101.1 | ↓-0.8 | |
| 5/20 22:50 | 100.2 | ↓-0.9 | |
| 5/20 23:00 | 99.4 | ↓-0.8 | |
| 5/20 23:10 | 98.7 | ↓-0.7 | |
| 5/20 23:20 | 98.0 | ↓-0.7 | |
| 5/20 23:30 | 97.3 | ↓-0.7 | |
| 5/20 23:40 | 96.7 | ↓-0.6 | |
| 5/20 23:50 | 96.2 | ↓-0.5 |