| 満潮 | 干潮 | 満潮 | 干潮 |
|
21
(木) |
02:58 | 09:45 | 16:35 | 21:55 |
| 120cm | 5cm | 116cm | 62cm | |
|
||||
那珂湊（茨城）2054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 | 85.3 | ↑2.9 | |
| 5/21 00:10 | 88.2 | ↑2.9 | |
| 5/21 00:20 | 91.1 | ↑2.9 | |
| 5/21 00:30 | 93.9 | ↑2.8 | |
| 5/21 00:40 | 96.8 | ↑2.9 | |
| 5/21 00:50 | 99.5 | ↑2.7 | |
| 5/21 01:00 | 102.2 | ↑2.7 | |
| 5/21 01:10 | 104.7 | ↑2.5 | |
| 5/21 01:20 | 107.1 | ↑2.4 | |
| 5/21 01:30 | 109.4 | ↑2.3 | |
| 5/21 01:40 | 111.5 | ↑2.1 | |
| 5/21 01:50 | 113.3 | ↑1.8 | |
| 5/21 02:00 | 115.0 | ↑1.7 | |
| 5/21 02:10 | 116.4 | ↑1.4 | |
| 5/21 02:20 | 117.6 | ↑1.2 | |
| 5/21 02:30 | 118.5 | ↑0.9 | |
| 5/21 02:40 | 119.1 | ↑0.6 | |
| 5/21 02:50 | 119.5 | ↑0.4 | 満潮 |
| 5/21 03:00 | 119.6 | ↑0.1 | |
| 5/21 03:10 | 119.3 | ↓-0.3 | |
| 5/21 03:20 | 118.8 | ↓-0.5 | |
| 5/21 03:30 | 117.9 | ↓-0.9 | |
| 5/21 03:40 | 116.8 | ↓-1.1 | |
| 5/21 03:50 | 115.3 | ↓-1.5 | |
| 5/21 04:00 | 113.5 | ↓-1.8 | |
| 5/21 04:10 | 111.5 | ↓-2.0 | |
| 5/21 04:20 | 109.1 | ↓-2.4 | |
| 5/21 04:30 | 106.5 | ↓-2.6 | |
| 5/21 04:40 | 103.6 | ↓-2.9 | |
| 5/21 04:50 | 100.4 | ↓-3.2 | |
| 5/21 05:00 | 97.0 | ↓-3.4 | |
| 5/21 05:10 | 93.4 | ↓-3.6 | |
| 5/21 05:20 | 89.6 | ↓-3.8 | |
| 5/21 05:30 | 85.6 | ↓-4.0 | |
| 5/21 05:40 | 81.5 | ↓-4.1 | |
| 5/21 05:50 | 77.2 | ↓-4.3 | |
| 5/21 06:00 | 72.9 | ↓-4.3 | |
| 5/21 06:10 | 68.4 | ↓-4.5 | 最大潮位差 |
| 5/21 06:20 | 63.9 | ↓-4.5 | 最大潮位差 |
| 5/21 06:30 | 59.4 | ↓-4.5 | 最大潮位差 |
| 5/21 06:40 | 54.9 | ↓-4.5 | 最大潮位差 |
| 5/21 06:50 | 50.5 | ↓-4.4 | |
| 5/21 07:00 | 46.1 | ↓-4.4 | |
| 5/21 07:10 | 41.8 | ↓-4.3 | |
| 5/21 07:20 | 37.6 | ↓-4.2 | |
| 5/21 07:30 | 33.5 | ↓-4.1 | |
| 5/21 07:40 | 29.7 | ↓-3.8 | |
| 5/21 07:50 | 26.0 | ↓-3.7 | |
| 5/21 08:00 | 22.6 | ↓-3.4 | |
| 5/21 08:10 | 19.4 | ↓-3.2 | |
| 5/21 08:20 | 16.4 | ↓-3.0 | |
| 5/21 08:30 | 13.8 | ↓-2.6 | |
| 5/21 08:40 | 11.4 | ↓-2.4 | |
| 5/21 08:50 | 9.4 | ↓-2.0 | |
| 5/21 09:00 | 7.7 | ↓-1.7 | |
| 5/21 09:10 | 6.3 | ↓-1.4 | |
| 5/21 09:20 | 5.3 | ↓-1.0 | |
| 5/21 09:30 | 4.6 | ↓-0.7 | |
| 5/21 09:40 | 4.3 | ↓-0.3 | 干潮 |
| 5/21 09:50 | 4.3 | 0 | |
| 5/21 10:00 | 4.6 | ↑0.3 | |
| 5/21 10:10 | 5.4 | ↑0.8 | |
| 5/21 10:20 | 6.4 | ↑1.0 | |
| 5/21 10:30 | 7.8 | ↑1.4 | |
| 5/21 10:40 | 9.5 | ↑1.7 | |
| 5/21 10:50 | 11.5 | ↑2.0 | |
| 5/21 11:00 | 13.9 | ↑2.4 | |
| 5/21 11:10 | 16.4 | ↑2.5 | |
| 5/21 11:20 | 19.3 | ↑2.9 | |
| 5/21 11:30 | 22.4 | ↑3.1 | |
| 5/21 11:40 | 25.7 | ↑3.3 | |
| 5/21 11:50 | 29.3 | ↑3.6 | |
| 5/21 12:00 | 33.0 | ↑3.7 | |
| 5/21 12:10 | 36.9 | ↑3.9 | |
| 5/21 12:20 | 40.9 | ↑4.0 | |
| 5/21 12:30 | 45.0 | ↑4.1 | |
| 5/21 12:40 | 49.2 | ↑4.2 | |
| 5/21 12:50 | 53.4 | ↑4.2 | |
| 5/21 13:00 | 57.7 | ↑4.3 | |
| 5/21 13:10 | 62.0 | ↑4.3 | |
| 5/21 13:20 | 66.3 | ↑4.3 | |
| 5/21 13:30 | 70.5 | ↑4.2 | |
| 5/21 13:40 | 74.7 | ↑4.2 | |
| 5/21 13:50 | 78.8 | ↑4.1 | |
| 5/21 14:00 | 82.7 | ↑3.9 | |
| 5/21 14:10 | 86.5 | ↑3.8 | |
| 5/21 14:20 | 90.2 | ↑3.7 | |
| 5/21 14:30 | 93.7 | ↑3.5 | |
| 5/21 14:40 | 96.9 | ↑3.2 | |
| 5/21 14:50 | 100.0 | ↑3.1 | |
| 5/21 15:00 | 102.8 | ↑2.8 | |
| 5/21 15:10 | 105.4 | ↑2.6 | |
| 5/21 15:20 | 107.7 | ↑2.3 | |
| 5/21 15:30 | 109.7 | ↑2.0 | |
| 5/21 15:40 | 111.5 | ↑1.8 | |
| 5/21 15:50 | 112.9 | ↑1.4 | |
| 5/21 16:00 | 114.1 | ↑1.2 | |
| 5/21 16:10 | 115.0 | ↑0.9 | |
| 5/21 16:20 | 115.5 | ↑0.5 | |
| 5/21 16:30 | 115.8 | ↑0.3 | 満潮 |
| 5/21 16:40 | 115.8 | 0 | |
| 5/21 16:50 | 115.4 | ↓-0.4 | |
| 5/21 17:00 | 114.8 | ↓-0.6 | |
| 5/21 17:10 | 114.0 | ↓-0.8 | |
| 5/21 17:20 | 112.9 | ↓-1.1 | |
| 5/21 17:30 | 111.5 | ↓-1.4 | |
| 5/21 17:40 | 109.9 | ↓-1.6 | |
| 5/21 17:50 | 108.1 | ↓-1.8 | |
| 5/21 18:00 | 106.1 | ↓-2.0 | |
| 5/21 18:10 | 103.9 | ↓-2.2 | |
| 5/21 18:20 | 101.6 | ↓-2.3 | |
| 5/21 18:30 | 99.2 | ↓-2.4 | |
| 5/21 18:40 | 96.6 | ↓-2.6 | |
| 5/21 18:50 | 94.0 | ↓-2.6 | |
| 5/21 19:00 | 91.4 | ↓-2.6 | |
| 5/21 19:10 | 88.7 | ↓-2.7 | |
| 5/21 19:20 | 86.0 | ↓-2.7 | |
| 5/21 19:30 | 83.4 | ↓-2.6 | |
| 5/21 19:40 | 80.8 | ↓-2.6 | |
| 5/21 19:50 | 78.3 | ↓-2.5 | |
| 5/21 20:00 | 75.9 | ↓-2.4 | |
| 5/21 20:10 | 73.6 | ↓-2.3 | |
| 5/21 20:20 | 71.4 | ↓-2.2 | |
| 5/21 20:30 | 69.4 | ↓-2.0 | |
| 5/21 20:40 | 67.6 | ↓-1.8 | |
| 5/21 20:50 | 66.0 | ↓-1.6 | |
| 5/21 21:00 | 64.6 | ↓-1.4 | |
| 5/21 21:10 | 63.4 | ↓-1.2 | |
| 5/21 21:20 | 62.5 | ↓-0.9 | |
| 5/21 21:30 | 61.8 | ↓-0.7 | |
| 5/21 21:40 | 61.3 | ↓-0.5 | |
| 5/21 21:50 | 61.1 | ↓-0.2 | 干潮 |
| 5/21 22:00 | 61.1 | 0 | |
| 5/21 22:10 | 61.4 | ↑0.3 | |
| 5/21 22:20 | 61.9 | ↑0.5 | |
| 5/21 22:30 | 62.7 | ↑0.8 | |
| 5/21 22:40 | 63.7 | ↑1.0 | |
| 5/21 22:50 | 65.0 | ↑1.3 | |
| 5/21 23:00 | 66.4 | ↑1.4 | |
| 5/21 23:10 | 68.1 | ↑1.7 | |
| 5/21 23:20 | 69.9 | ↑1.8 | |
| 5/21 23:30 | 72.0 | ↑2.1 | |
| 5/21 23:40 | 74.1 | ↑2.1 | |
| 5/21 23:50 | 76.5 | ↑2.4 |