| 満潮 | 干潮 | 満潮 | 干潮 |
|
21
(月) |
04:27 | 11:39 | 19:06 | 23:50 |
| 120cm | -10cm | 118cm | 84cm | |
|
||||
那珂湊（茨城）2057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 | 78.6 | ↑0.9 | |
| 5/21 00:10 | 79.7 | ↑1.1 | |
| 5/21 00:20 | 80.9 | ↑1.2 | |
| 5/21 00:30 | 82.3 | ↑1.4 | |
| 5/21 00:40 | 83.9 | ↑1.6 | |
| 5/21 00:50 | 85.6 | ↑1.7 | |
| 5/21 01:00 | 87.4 | ↑1.8 | |
| 5/21 01:10 | 89.2 | ↑1.8 | |
| 5/21 01:20 | 91.2 | ↑2.0 | |
| 5/21 01:30 | 93.3 | ↑2.1 | |
| 5/21 01:40 | 95.3 | ↑2.0 | |
| 5/21 01:50 | 97.4 | ↑2.1 | |
| 5/21 02:00 | 99.6 | ↑2.2 | |
| 5/21 02:10 | 101.7 | ↑2.1 | |
| 5/21 02:20 | 103.7 | ↑2.0 | |
| 5/21 02:30 | 105.7 | ↑2.0 | |
| 5/21 02:40 | 107.7 | ↑2.0 | |
| 5/21 02:50 | 109.5 | ↑1.8 | |
| 5/21 03:00 | 111.3 | ↑1.8 | |
| 5/21 03:10 | 112.9 | ↑1.6 | |
| 5/21 03:20 | 114.4 | ↑1.5 | |
| 5/21 03:30 | 115.7 | ↑1.3 | |
| 5/21 03:40 | 116.8 | ↑1.1 | |
| 5/21 03:50 | 117.7 | ↑0.9 | |
| 5/21 04:00 | 118.5 | ↑0.8 | |
| 5/21 04:10 | 119.0 | ↑0.5 | |
| 5/21 04:20 | 119.2 | ↑0.2 | 満潮 |
| 5/21 04:30 | 119.2 | 0 | |
| 5/21 04:40 | 119.0 | ↓-0.2 | |
| 5/21 04:50 | 118.5 | ↓-0.5 | |
| 5/21 05:00 | 117.7 | ↓-0.8 | |
| 5/21 05:10 | 116.6 | ↓-1.1 | |
| 5/21 05:20 | 115.3 | ↓-1.3 | |
| 5/21 05:30 | 113.6 | ↓-1.7 | |
| 5/21 05:40 | 111.7 | ↓-1.9 | |
| 5/21 05:50 | 109.5 | ↓-2.2 | |
| 5/21 06:00 | 107.0 | ↓-2.5 | |
| 5/21 06:10 | 104.2 | ↓-2.8 | |
| 5/21 06:20 | 101.1 | ↓-3.1 | |
| 5/21 06:30 | 97.8 | ↓-3.3 | |
| 5/21 06:40 | 94.3 | ↓-3.5 | |
| 5/21 06:50 | 90.5 | ↓-3.8 | |
| 5/21 07:00 | 86.5 | ↓-4.0 | |
| 5/21 07:10 | 82.3 | ↓-4.2 | |
| 5/21 07:20 | 78.0 | ↓-4.3 | |
| 5/21 07:30 | 73.5 | ↓-4.5 | |
| 5/21 07:40 | 68.9 | ↓-4.6 | |
| 5/21 07:50 | 64.1 | ↓-4.8 | |
| 5/21 08:00 | 59.4 | ↓-4.7 | |
| 5/21 08:10 | 54.5 | ↓-4.9 | 最大潮位差 |
| 5/21 08:20 | 49.7 | ↓-4.8 | |
| 5/21 08:30 | 44.9 | ↓-4.8 | |
| 5/21 08:40 | 40.1 | ↓-4.8 | |
| 5/21 08:50 | 35.4 | ↓-4.7 | |
| 5/21 09:00 | 30.8 | ↓-4.6 | |
| 5/21 09:10 | 26.3 | ↓-4.5 | |
| 5/21 09:20 | 22.0 | ↓-4.3 | |
| 5/21 09:30 | 17.8 | ↓-4.2 | |
| 5/21 09:40 | 13.9 | ↓-3.9 | |
| 5/21 09:50 | 10.2 | ↓-3.7 | |
| 5/21 10:00 | 6.8 | ↓-3.4 | |
| 5/21 10:10 | 3.6 | ↓-3.2 | |
| 5/21 10:20 | 0.8 | ↓-2.8 | |
| 5/21 10:30 | -1.8 | ↓-2.6 | |
| 5/21 10:40 | -4.0 | ↓-2.2 | |
| 5/21 10:50 | -5.9 | ↓-1.9 | |
| 5/21 11:00 | -7.4 | ↓-1.5 | |
| 5/21 11:10 | -8.6 | ↓-1.2 | |
| 5/21 11:20 | -9.4 | ↓-0.8 | |
| 5/21 11:30 | -9.9 | ↓-0.5 | 干潮 |
| 5/21 11:40 | -10.1 | ↓-0.2 | |
| 5/21 11:50 | -9.8 | ↑0.3 | |
| 5/21 12:00 | -9.2 | ↑0.6 | |
| 5/21 12:10 | -8.3 | ↑0.9 | |
| 5/21 12:20 | -7.1 | ↑1.2 | |
| 5/21 12:30 | -5.5 | ↑1.6 | |
| 5/21 12:40 | -3.6 | ↑1.9 | |
| 5/21 12:50 | -1.4 | ↑2.2 | |
| 5/21 13:00 | 1.1 | ↑2.5 | |
| 5/21 13:10 | 3.9 | ↑2.8 | |
| 5/21 13:20 | 6.9 | ↑3.0 | |
| 5/21 13:30 | 10.2 | ↑3.3 | |
| 5/21 13:40 | 13.6 | ↑3.4 | |
| 5/21 13:50 | 17.3 | ↑3.7 | |
| 5/21 14:00 | 21.1 | ↑3.8 | |
| 5/21 14:10 | 25.1 | ↑4.0 | |
| 5/21 14:20 | 29.3 | ↑4.2 | |
| 5/21 14:30 | 33.5 | ↑4.2 | |
| 5/21 14:40 | 37.9 | ↑4.4 | |
| 5/21 14:50 | 42.3 | ↑4.4 | |
| 5/21 15:00 | 46.8 | ↑4.5 | |
| 5/21 15:10 | 51.3 | ↑4.5 | |
| 5/21 15:20 | 55.7 | ↑4.4 | |
| 5/21 15:30 | 60.2 | ↑4.5 | |
| 5/21 15:40 | 64.7 | ↑4.5 | |
| 5/21 15:50 | 69.0 | ↑4.3 | |
| 5/21 16:00 | 73.3 | ↑4.3 | |
| 5/21 16:10 | 77.5 | ↑4.2 | |
| 5/21 16:20 | 81.5 | ↑4.0 | |
| 5/21 16:30 | 85.4 | ↑3.9 | |
| 5/21 16:40 | 89.2 | ↑3.8 | |
| 5/21 16:50 | 92.8 | ↑3.6 | |
| 5/21 17:00 | 96.1 | ↑3.3 | |
| 5/21 17:10 | 99.3 | ↑3.2 | |
| 5/21 17:20 | 102.2 | ↑2.9 | |
| 5/21 17:30 | 104.9 | ↑2.7 | |
| 5/21 17:40 | 107.3 | ↑2.4 | |
| 5/21 17:50 | 109.5 | ↑2.2 | |
| 5/21 18:00 | 111.4 | ↑1.9 | |
| 5/21 18:10 | 113.0 | ↑1.6 | |
| 5/21 18:20 | 114.4 | ↑1.4 | |
| 5/21 18:30 | 115.4 | ↑1.0 | |
| 5/21 18:40 | 116.2 | ↑0.8 | |
| 5/21 18:50 | 116.8 | ↑0.6 | |
| 5/21 19:00 | 117.0 | ↑0.2 | 満潮 |
| 5/21 19:10 | 117.1 | ↑0.1 | |
| 5/21 19:20 | 116.8 | ↓-0.3 | |
| 5/21 19:30 | 116.3 | ↓-0.5 | |
| 5/21 19:40 | 115.6 | ↓-0.7 | |
| 5/21 19:50 | 114.7 | ↓-0.9 | |
| 5/21 20:00 | 113.6 | ↓-1.1 | |
| 5/21 20:10 | 112.4 | ↓-1.2 | |
| 5/21 20:20 | 110.9 | ↓-1.5 | |
| 5/21 20:30 | 109.4 | ↓-1.5 | |
| 5/21 20:40 | 107.7 | ↓-1.7 | |
| 5/21 20:50 | 106.0 | ↓-1.7 | |
| 5/21 21:00 | 104.2 | ↓-1.8 | |
| 5/21 21:10 | 102.3 | ↓-1.9 | |
| 5/21 21:20 | 100.5 | ↓-1.8 | |
| 5/21 21:30 | 98.6 | ↓-1.9 | |
| 5/21 21:40 | 96.8 | ↓-1.8 | |
| 5/21 21:50 | 95.0 | ↓-1.8 | |
| 5/21 22:00 | 93.3 | ↓-1.7 | |
| 5/21 22:10 | 91.7 | ↓-1.6 | |
| 5/21 22:20 | 90.2 | ↓-1.5 | |
| 5/21 22:30 | 88.8 | ↓-1.4 | |
| 5/21 22:40 | 87.5 | ↓-1.3 | |
| 5/21 22:50 | 86.4 | ↓-1.1 | |
| 5/21 23:00 | 85.5 | ↓-0.9 | |
| 5/21 23:10 | 84.7 | ↓-0.8 | |
| 5/21 23:20 | 84.1 | ↓-0.6 | |
| 5/21 23:30 | 83.6 | ↓-0.5 | |
| 5/21 23:40 | 83.4 | ↓-0.2 | 干潮 |
| 5/21 23:50 | 83.3 | ↓-0.1 | 干潮 |