| 満潮 | 干潮 | 満潮 | 干潮 |
|
21
(水) |
02:57 | 10:00 | 17:04 | 22:03 |
| 120cm | -1cm | 114cm | 72cm | |
|
||||
那珂湊（茨城）2031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 | 90.3 | ↑2.4 | |
| 5/21 00:10 | 92.8 | ↑2.5 | |
| 5/21 00:20 | 95.2 | ↑2.4 | |
| 5/21 00:30 | 97.7 | ↑2.5 | |
| 5/21 00:40 | 100.1 | ↑2.4 | |
| 5/21 00:50 | 102.4 | ↑2.3 | |
| 5/21 01:00 | 104.7 | ↑2.3 | |
| 5/21 01:10 | 106.9 | ↑2.2 | |
| 5/21 01:20 | 109.0 | ↑2.1 | |
| 5/21 01:30 | 111.0 | ↑2.0 | |
| 5/21 01:40 | 112.8 | ↑1.8 | |
| 5/21 01:50 | 114.4 | ↑1.6 | |
| 5/21 02:00 | 115.9 | ↑1.5 | |
| 5/21 02:10 | 117.1 | ↑1.2 | |
| 5/21 02:20 | 118.1 | ↑1.0 | |
| 5/21 02:30 | 118.9 | ↑0.8 | |
| 5/21 02:40 | 119.5 | ↑0.6 | |
| 5/21 02:50 | 119.7 | ↑0.2 | 満潮 |
| 5/21 03:00 | 119.8 | ↑0.1 | |
| 5/21 03:10 | 119.5 | ↓-0.3 | |
| 5/21 03:20 | 119.0 | ↓-0.5 | |
| 5/21 03:30 | 118.1 | ↓-0.9 | |
| 5/21 03:40 | 117.0 | ↓-1.1 | |
| 5/21 03:50 | 115.6 | ↓-1.4 | |
| 5/21 04:00 | 113.9 | ↓-1.7 | |
| 5/21 04:10 | 111.9 | ↓-2.0 | |
| 5/21 04:20 | 109.6 | ↓-2.3 | |
| 5/21 04:30 | 107.1 | ↓-2.5 | |
| 5/21 04:40 | 104.3 | ↓-2.8 | |
| 5/21 04:50 | 101.2 | ↓-3.1 | |
| 5/21 05:00 | 97.9 | ↓-3.3 | |
| 5/21 05:10 | 94.4 | ↓-3.5 | |
| 5/21 05:20 | 90.6 | ↓-3.8 | |
| 5/21 05:30 | 86.7 | ↓-3.9 | |
| 5/21 05:40 | 82.6 | ↓-4.1 | |
| 5/21 05:50 | 78.4 | ↓-4.2 | |
| 5/21 06:00 | 74.0 | ↓-4.4 | |
| 5/21 06:10 | 69.6 | ↓-4.4 | |
| 5/21 06:20 | 65.0 | ↓-4.6 | 最大潮位差 |
| 5/21 06:30 | 60.5 | ↓-4.5 | |
| 5/21 06:40 | 55.9 | ↓-4.6 | 最大潮位差 |
| 5/21 06:50 | 51.3 | ↓-4.6 | 最大潮位差 |
| 5/21 07:00 | 46.8 | ↓-4.5 | |
| 5/21 07:10 | 42.3 | ↓-4.5 | |
| 5/21 07:20 | 37.9 | ↓-4.4 | |
| 5/21 07:30 | 33.7 | ↓-4.2 | |
| 5/21 07:40 | 29.6 | ↓-4.1 | |
| 5/21 07:50 | 25.6 | ↓-4.0 | |
| 5/21 08:00 | 21.9 | ↓-3.7 | |
| 5/21 08:10 | 18.3 | ↓-3.6 | |
| 5/21 08:20 | 15.0 | ↓-3.3 | |
| 5/21 08:30 | 12.0 | ↓-3.0 | |
| 5/21 08:40 | 9.2 | ↓-2.8 | |
| 5/21 08:50 | 6.8 | ↓-2.4 | |
| 5/21 09:00 | 4.6 | ↓-2.2 | |
| 5/21 09:10 | 2.8 | ↓-1.8 | |
| 5/21 09:20 | 1.3 | ↓-1.5 | |
| 5/21 09:30 | 0.1 | ↓-1.2 | |
| 5/21 09:40 | -0.7 | ↓-0.8 | |
| 5/21 09:50 | -1.2 | ↓-0.5 | 干潮 |
| 5/21 10:00 | -1.4 | ↓-0.2 | 干潮 |
| 5/21 10:10 | -1.2 | ↑0.2 | |
| 5/21 10:20 | -0.6 | ↑0.6 | |
| 5/21 10:30 | 0.3 | ↑0.9 | |
| 5/21 10:40 | 1.5 | ↑1.2 | |
| 5/21 10:50 | 3.0 | ↑1.5 | |
| 5/21 11:00 | 4.9 | ↑1.9 | |
| 5/21 11:10 | 7.0 | ↑2.1 | |
| 5/21 11:20 | 9.4 | ↑2.4 | |
| 5/21 11:30 | 12.1 | ↑2.7 | |
| 5/21 11:40 | 15.0 | ↑2.9 | |
| 5/21 11:50 | 18.2 | ↑3.2 | |
| 5/21 12:00 | 21.6 | ↑3.4 | |
| 5/21 12:10 | 25.2 | ↑3.6 | |
| 5/21 12:20 | 28.9 | ↑3.7 | |
| 5/21 12:30 | 32.8 | ↑3.9 | |
| 5/21 12:40 | 36.8 | ↑4.0 | |
| 5/21 12:50 | 40.9 | ↑4.1 | |
| 5/21 13:00 | 45.1 | ↑4.2 | |
| 5/21 13:10 | 49.3 | ↑4.2 | |
| 5/21 13:20 | 53.6 | ↑4.3 | |
| 5/21 13:30 | 57.9 | ↑4.3 | |
| 5/21 13:40 | 62.1 | ↑4.2 | |
| 5/21 13:50 | 66.3 | ↑4.2 | |
| 5/21 14:00 | 70.5 | ↑4.2 | |
| 5/21 14:10 | 74.5 | ↑4.0 | |
| 5/21 14:20 | 78.5 | ↑4.0 | |
| 5/21 14:30 | 82.3 | ↑3.8 | |
| 5/21 14:40 | 85.9 | ↑3.6 | |
| 5/21 14:50 | 89.4 | ↑3.5 | |
| 5/21 15:00 | 92.7 | ↑3.3 | |
| 5/21 15:10 | 95.8 | ↑3.1 | |
| 5/21 15:20 | 98.7 | ↑2.9 | |
| 5/21 15:30 | 101.3 | ↑2.6 | |
| 5/21 15:40 | 103.7 | ↑2.4 | |
| 5/21 15:50 | 105.9 | ↑2.2 | |
| 5/21 16:00 | 107.7 | ↑1.8 | |
| 5/21 16:10 | 109.3 | ↑1.6 | |
| 5/21 16:20 | 110.6 | ↑1.3 | |
| 5/21 16:30 | 111.7 | ↑1.1 | |
| 5/21 16:40 | 112.5 | ↑0.8 | |
| 5/21 16:50 | 112.9 | ↑0.4 | |
| 5/21 17:00 | 113.2 | ↑0.3 | 満潮 |
| 5/21 17:10 | 113.1 | ↓-0.1 | |
| 5/21 17:20 | 112.8 | ↓-0.3 | |
| 5/21 17:30 | 112.3 | ↓-0.5 | |
| 5/21 17:40 | 111.5 | ↓-0.8 | |
| 5/21 17:50 | 110.5 | ↓-1.0 | |
| 5/21 18:00 | 109.2 | ↓-1.3 | |
| 5/21 18:10 | 107.8 | ↓-1.4 | |
| 5/21 18:20 | 106.3 | ↓-1.5 | |
| 5/21 18:30 | 104.5 | ↓-1.8 | |
| 5/21 18:40 | 102.7 | ↓-1.8 | |
| 5/21 18:50 | 100.7 | ↓-2.0 | |
| 5/21 19:00 | 98.7 | ↓-2.0 | |
| 5/21 19:10 | 96.6 | ↓-2.1 | |
| 5/21 19:20 | 94.4 | ↓-2.2 | |
| 5/21 19:30 | 92.3 | ↓-2.1 | |
| 5/21 19:40 | 90.1 | ↓-2.2 | |
| 5/21 19:50 | 88.0 | ↓-2.1 | |
| 5/21 20:00 | 85.9 | ↓-2.1 | |
| 5/21 20:10 | 83.9 | ↓-2.0 | |
| 5/21 20:20 | 82.0 | ↓-1.9 | |
| 5/21 20:30 | 80.3 | ↓-1.7 | |
| 5/21 20:40 | 78.6 | ↓-1.7 | |
| 5/21 20:50 | 77.1 | ↓-1.5 | |
| 5/21 21:00 | 75.8 | ↓-1.3 | |
| 5/21 21:10 | 74.6 | ↓-1.2 | |
| 5/21 21:20 | 73.6 | ↓-1.0 | |
| 5/21 21:30 | 72.9 | ↓-0.7 | |
| 5/21 21:40 | 72.3 | ↓-0.6 | |
| 5/21 21:50 | 71.9 | ↓-0.4 | |
| 5/21 22:00 | 71.7 | ↓-0.2 | 干潮 |
| 5/21 22:10 | 71.8 | ↑0.1 | |
| 5/21 22:20 | 72.1 | ↑0.3 | |
| 5/21 22:30 | 72.6 | ↑0.5 | |
| 5/21 22:40 | 73.2 | ↑0.6 | |
| 5/21 22:50 | 74.1 | ↑0.9 | |
| 5/21 23:00 | 75.2 | ↑1.1 | |
| 5/21 23:10 | 76.4 | ↑1.2 | |
| 5/21 23:20 | 77.9 | ↑1.5 | |
| 5/21 23:30 | 79.5 | ↑1.6 | |
| 5/21 23:40 | 81.2 | ↑1.7 | |
| 5/21 23:50 | 83.1 | ↑1.9 |