| 満潮 | 干潮 | 満潮 | 干潮 |
|
21
(金) |
04:29 | 11:37 | 18:57 | 23:46 |
| 121cm | -9cm | 117cm | 80cm | |
|
||||
那珂湊（茨城）2038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 | 76.1 | ↑1.0 | |
| 5/21 00:10 | 77.3 | ↑1.2 | |
| 5/21 00:20 | 78.6 | ↑1.3 | |
| 5/21 00:30 | 80.2 | ↑1.6 | |
| 5/21 00:40 | 81.8 | ↑1.6 | |
| 5/21 00:50 | 83.7 | ↑1.9 | |
| 5/21 01:00 | 85.6 | ↑1.9 | |
| 5/21 01:10 | 87.6 | ↑2.0 | |
| 5/21 01:20 | 89.8 | ↑2.2 | |
| 5/21 01:30 | 91.9 | ↑2.1 | |
| 5/21 01:40 | 94.2 | ↑2.3 | |
| 5/21 01:50 | 96.4 | ↑2.2 | |
| 5/21 02:00 | 98.7 | ↑2.3 | |
| 5/21 02:10 | 101.0 | ↑2.3 | |
| 5/21 02:20 | 103.2 | ↑2.2 | |
| 5/21 02:30 | 105.4 | ↑2.2 | |
| 5/21 02:40 | 107.4 | ↑2.0 | |
| 5/21 02:50 | 109.4 | ↑2.0 | |
| 5/21 03:00 | 111.3 | ↑1.9 | |
| 5/21 03:10 | 113.1 | ↑1.8 | |
| 5/21 03:20 | 114.7 | ↑1.6 | |
| 5/21 03:30 | 116.1 | ↑1.4 | |
| 5/21 03:40 | 117.4 | ↑1.3 | |
| 5/21 03:50 | 118.4 | ↑1.0 | |
| 5/21 04:00 | 119.2 | ↑0.8 | |
| 5/21 04:10 | 119.8 | ↑0.6 | |
| 5/21 04:20 | 120.2 | ↑0.4 | 満潮 |
| 5/21 04:30 | 120.2 | 0 | |
| 5/21 04:40 | 120.1 | ↓-0.1 | |
| 5/21 04:50 | 119.6 | ↓-0.5 | |
| 5/21 05:00 | 118.8 | ↓-0.8 | |
| 5/21 05:10 | 117.7 | ↓-1.1 | |
| 5/21 05:20 | 116.4 | ↓-1.3 | |
| 5/21 05:30 | 114.7 | ↓-1.7 | |
| 5/21 05:40 | 112.8 | ↓-1.9 | |
| 5/21 05:50 | 110.5 | ↓-2.3 | |
| 5/21 06:00 | 108.0 | ↓-2.5 | |
| 5/21 06:10 | 105.1 | ↓-2.9 | |
| 5/21 06:20 | 102.0 | ↓-3.1 | |
| 5/21 06:30 | 98.7 | ↓-3.3 | |
| 5/21 06:40 | 95.1 | ↓-3.6 | |
| 5/21 06:50 | 91.2 | ↓-3.9 | |
| 5/21 07:00 | 87.2 | ↓-4.0 | |
| 5/21 07:10 | 82.9 | ↓-4.3 | |
| 5/21 07:20 | 78.5 | ↓-4.4 | |
| 5/21 07:30 | 73.9 | ↓-4.6 | |
| 5/21 07:40 | 69.2 | ↓-4.7 | |
| 5/21 07:50 | 64.5 | ↓-4.7 | |
| 5/21 08:00 | 59.6 | ↓-4.9 | 最大潮位差 |
| 5/21 08:10 | 54.7 | ↓-4.9 | 最大潮位差 |
| 5/21 08:20 | 49.9 | ↓-4.8 | |
| 5/21 08:30 | 45.0 | ↓-4.9 | 最大潮位差 |
| 5/21 08:40 | 40.2 | ↓-4.8 | |
| 5/21 08:50 | 35.5 | ↓-4.7 | |
| 5/21 09:00 | 30.9 | ↓-4.6 | |
| 5/21 09:10 | 26.4 | ↓-4.5 | |
| 5/21 09:20 | 22.1 | ↓-4.3 | |
| 5/21 09:30 | 18.0 | ↓-4.1 | |
| 5/21 09:40 | 14.1 | ↓-3.9 | |
| 5/21 09:50 | 10.4 | ↓-3.7 | |
| 5/21 10:00 | 7.1 | ↓-3.3 | |
| 5/21 10:10 | 4.0 | ↓-3.1 | |
| 5/21 10:20 | 1.2 | ↓-2.8 | |
| 5/21 10:30 | -1.3 | ↓-2.5 | |
| 5/21 10:40 | -3.5 | ↓-2.2 | |
| 5/21 10:50 | -5.3 | ↓-1.8 | |
| 5/21 11:00 | -6.7 | ↓-1.4 | |
| 5/21 11:10 | -7.8 | ↓-1.1 | |
| 5/21 11:20 | -8.6 | ↓-0.8 | |
| 5/21 11:30 | -9.0 | ↓-0.4 | 干潮 |
| 5/21 11:40 | -9.0 | 0 | |
| 5/21 11:50 | -8.7 | ↑0.3 | |
| 5/21 12:00 | -8.0 | ↑0.7 | |
| 5/21 12:10 | -7.0 | ↑1.0 | |
| 5/21 12:20 | -5.6 | ↑1.4 | |
| 5/21 12:30 | -3.9 | ↑1.7 | |
| 5/21 12:40 | -1.9 | ↑2.0 | |
| 5/21 12:50 | 0.4 | ↑2.3 | |
| 5/21 13:00 | 3.0 | ↑2.6 | |
| 5/21 13:10 | 5.8 | ↑2.8 | |
| 5/21 13:20 | 8.9 | ↑3.1 | |
| 5/21 13:30 | 12.2 | ↑3.3 | |
| 5/21 13:40 | 15.8 | ↑3.6 | |
| 5/21 13:50 | 19.5 | ↑3.7 | |
| 5/21 14:00 | 23.5 | ↑4.0 | |
| 5/21 14:10 | 27.5 | ↑4.0 | |
| 5/21 14:20 | 31.7 | ↑4.2 | |
| 5/21 14:30 | 36.0 | ↑4.3 | |
| 5/21 14:40 | 40.4 | ↑4.4 | |
| 5/21 14:50 | 44.9 | ↑4.5 | |
| 5/21 15:00 | 49.4 | ↑4.5 | |
| 5/21 15:10 | 53.9 | ↑4.5 | |
| 5/21 15:20 | 58.4 | ↑4.5 | |
| 5/21 15:30 | 62.9 | ↑4.5 | |
| 5/21 15:40 | 67.3 | ↑4.4 | |
| 5/21 15:50 | 71.6 | ↑4.3 | |
| 5/21 16:00 | 75.9 | ↑4.3 | |
| 5/21 16:10 | 80.0 | ↑4.1 | |
| 5/21 16:20 | 84.0 | ↑4.0 | |
| 5/21 16:30 | 87.8 | ↑3.8 | |
| 5/21 16:40 | 91.5 | ↑3.7 | |
| 5/21 16:50 | 94.9 | ↑3.4 | |
| 5/21 17:00 | 98.2 | ↑3.3 | |
| 5/21 17:10 | 101.2 | ↑3.0 | |
| 5/21 17:20 | 104.0 | ↑2.8 | |
| 5/21 17:30 | 106.5 | ↑2.5 | |
| 5/21 17:40 | 108.7 | ↑2.2 | |
| 5/21 17:50 | 110.7 | ↑2.0 | |
| 5/21 18:00 | 112.4 | ↑1.7 | |
| 5/21 18:10 | 113.8 | ↑1.4 | |
| 5/21 18:20 | 115.0 | ↑1.2 | |
| 5/21 18:30 | 115.8 | ↑0.8 | |
| 5/21 18:40 | 116.4 | ↑0.6 | |
| 5/21 18:50 | 116.7 | ↑0.3 | 満潮 |
| 5/21 19:00 | 116.7 | 0 | |
| 5/21 19:10 | 116.5 | ↓-0.2 | |
| 5/21 19:20 | 116.0 | ↓-0.5 | |
| 5/21 19:30 | 115.2 | ↓-0.8 | |
| 5/21 19:40 | 114.3 | ↓-0.9 | |
| 5/21 19:50 | 113.2 | ↓-1.1 | |
| 5/21 20:00 | 111.8 | ↓-1.4 | |
| 5/21 20:10 | 110.4 | ↓-1.4 | |
| 5/21 20:20 | 108.7 | ↓-1.7 | |
| 5/21 20:30 | 107.0 | ↓-1.7 | |
| 5/21 20:40 | 105.2 | ↓-1.8 | |
| 5/21 20:50 | 103.3 | ↓-1.9 | |
| 5/21 21:00 | 101.3 | ↓-2.0 | |
| 5/21 21:10 | 99.3 | ↓-2.0 | |
| 5/21 21:20 | 97.3 | ↓-2.0 | |
| 5/21 21:30 | 95.4 | ↓-1.9 | |
| 5/21 21:40 | 93.5 | ↓-1.9 | |
| 5/21 21:50 | 91.6 | ↓-1.9 | |
| 5/21 22:00 | 89.8 | ↓-1.8 | |
| 5/21 22:10 | 88.2 | ↓-1.6 | |
| 5/21 22:20 | 86.6 | ↓-1.6 | |
| 5/21 22:30 | 85.2 | ↓-1.4 | |
| 5/21 22:40 | 84.0 | ↓-1.2 | |
| 5/21 22:50 | 82.9 | ↓-1.1 | |
| 5/21 23:00 | 81.9 | ↓-1.0 | |
| 5/21 23:10 | 81.2 | ↓-0.7 | |
| 5/21 23:20 | 80.6 | ↓-0.6 | |
| 5/21 23:30 | 80.2 | ↓-0.4 | |
| 5/21 23:40 | 80.0 | ↓-0.2 | 干潮 |
| 5/21 23:50 | 80.0 | 0 |