| 満潮 | 干潮 | 満潮 | 干潮 |
|
21
(月) |
03:17 | 10:35 | 17:59 | 22:40 |
| 123cm | -13cm | 118cm | 83cm | |
|
||||
那珂湊（茨城）2046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 | 91.3 | ↑2.0 | |
| 5/21 00:10 | 93.3 | ↑2.0 | |
| 5/21 00:20 | 95.4 | ↑2.1 | |
| 5/21 00:30 | 97.6 | ↑2.2 | |
| 5/21 00:40 | 99.8 | ↑2.2 | |
| 5/21 00:50 | 102.0 | ↑2.2 | |
| 5/21 01:00 | 104.2 | ↑2.2 | |
| 5/21 01:10 | 106.4 | ↑2.2 | |
| 5/21 01:20 | 108.5 | ↑2.1 | |
| 5/21 01:30 | 110.6 | ↑2.1 | |
| 5/21 01:40 | 112.5 | ↑1.9 | |
| 5/21 01:50 | 114.4 | ↑1.9 | |
| 5/21 02:00 | 116.1 | ↑1.7 | |
| 5/21 02:10 | 117.6 | ↑1.5 | |
| 5/21 02:20 | 119.0 | ↑1.4 | |
| 5/21 02:30 | 120.2 | ↑1.2 | |
| 5/21 02:40 | 121.2 | ↑1.0 | |
| 5/21 02:50 | 122.0 | ↑0.8 | |
| 5/21 03:00 | 122.5 | ↑0.5 | |
| 5/21 03:10 | 122.8 | ↑0.3 | 満潮 |
| 5/21 03:20 | 122.9 | ↑0.1 | |
| 5/21 03:30 | 122.6 | ↓-0.3 | |
| 5/21 03:40 | 122.1 | ↓-0.5 | |
| 5/21 03:50 | 121.3 | ↓-0.8 | |
| 5/21 04:00 | 120.2 | ↓-1.1 | |
| 5/21 04:10 | 118.8 | ↓-1.4 | |
| 5/21 04:20 | 117.1 | ↓-1.7 | |
| 5/21 04:30 | 115.1 | ↓-2.0 | |
| 5/21 04:40 | 112.8 | ↓-2.3 | |
| 5/21 04:50 | 110.2 | ↓-2.6 | |
| 5/21 05:00 | 107.3 | ↓-2.9 | |
| 5/21 05:10 | 104.2 | ↓-3.1 | |
| 5/21 05:20 | 100.8 | ↓-3.4 | |
| 5/21 05:30 | 97.1 | ↓-3.7 | |
| 5/21 05:40 | 93.2 | ↓-3.9 | |
| 5/21 05:50 | 89.1 | ↓-4.1 | |
| 5/21 06:00 | 84.8 | ↓-4.3 | |
| 5/21 06:10 | 80.3 | ↓-4.5 | |
| 5/21 06:20 | 75.7 | ↓-4.6 | |
| 5/21 06:30 | 70.9 | ↓-4.8 | |
| 5/21 06:40 | 66.0 | ↓-4.9 | |
| 5/21 06:50 | 61.0 | ↓-5.0 | |
| 5/21 07:00 | 56.0 | ↓-5.0 | |
| 5/21 07:10 | 51.0 | ↓-5.0 | |
| 5/21 07:20 | 45.9 | ↓-5.1 | 最大潮位差 |
| 5/21 07:30 | 40.9 | ↓-5.0 | |
| 5/21 07:40 | 36.0 | ↓-4.9 | |
| 5/21 07:50 | 31.2 | ↓-4.8 | |
| 5/21 08:00 | 26.5 | ↓-4.7 | |
| 5/21 08:10 | 21.9 | ↓-4.6 | |
| 5/21 08:20 | 17.5 | ↓-4.4 | |
| 5/21 08:30 | 13.3 | ↓-4.2 | |
| 5/21 08:40 | 9.4 | ↓-3.9 | |
| 5/21 08:50 | 5.7 | ↓-3.7 | |
| 5/21 09:00 | 2.3 | ↓-3.4 | |
| 5/21 09:10 | -0.9 | ↓-3.2 | |
| 5/21 09:20 | -3.7 | ↓-2.8 | |
| 5/21 09:30 | -6.2 | ↓-2.5 | |
| 5/21 09:40 | -8.4 | ↓-2.2 | |
| 5/21 09:50 | -10.2 | ↓-1.8 | |
| 5/21 10:00 | -11.6 | ↓-1.4 | |
| 5/21 10:10 | -12.7 | ↓-1.1 | |
| 5/21 10:20 | -13.4 | ↓-0.7 | |
| 5/21 10:30 | -13.8 | ↓-0.4 | 干潮 |
| 5/21 10:40 | -13.8 | 0 | |
| 5/21 10:50 | -13.4 | ↑0.4 | |
| 5/21 11:00 | -12.6 | ↑0.8 | |
| 5/21 11:10 | -11.5 | ↑1.1 | |
| 5/21 11:20 | -10.0 | ↑1.5 | |
| 5/21 11:30 | -8.2 | ↑1.8 | |
| 5/21 11:40 | -6.1 | ↑2.1 | |
| 5/21 11:50 | -3.7 | ↑2.4 | |
| 5/21 12:00 | -1.0 | ↑2.7 | |
| 5/21 12:10 | 2.1 | ↑3.1 | |
| 5/21 12:20 | 5.3 | ↑3.2 | |
| 5/21 12:30 | 8.8 | ↑3.5 | |
| 5/21 12:40 | 12.6 | ↑3.8 | |
| 5/21 12:50 | 16.5 | ↑3.9 | |
| 5/21 13:00 | 20.6 | ↑4.1 | |
| 5/21 13:10 | 24.9 | ↑4.3 | |
| 5/21 13:20 | 29.3 | ↑4.4 | |
| 5/21 13:30 | 33.8 | ↑4.5 | |
| 5/21 13:40 | 38.4 | ↑4.6 | |
| 5/21 13:50 | 43.0 | ↑4.6 | |
| 5/21 14:00 | 47.7 | ↑4.7 | |
| 5/21 14:10 | 52.4 | ↑4.7 | |
| 5/21 14:20 | 57.0 | ↑4.6 | |
| 5/21 14:30 | 61.7 | ↑4.7 | |
| 5/21 14:40 | 66.3 | ↑4.6 | |
| 5/21 14:50 | 70.7 | ↑4.4 | |
| 5/21 15:00 | 75.1 | ↑4.4 | |
| 5/21 15:10 | 79.4 | ↑4.3 | |
| 5/21 15:20 | 83.5 | ↑4.1 | |
| 5/21 15:30 | 87.4 | ↑3.9 | |
| 5/21 15:40 | 91.1 | ↑3.7 | |
| 5/21 15:50 | 94.7 | ↑3.6 | |
| 5/21 16:00 | 98.0 | ↑3.3 | |
| 5/21 16:10 | 101.1 | ↑3.1 | |
| 5/21 16:20 | 103.9 | ↑2.8 | |
| 5/21 16:30 | 106.5 | ↑2.6 | |
| 5/21 16:40 | 108.8 | ↑2.3 | |
| 5/21 16:50 | 110.8 | ↑2.0 | |
| 5/21 17:00 | 112.5 | ↑1.7 | |
| 5/21 17:10 | 114.0 | ↑1.5 | |
| 5/21 17:20 | 115.2 | ↑1.2 | |
| 5/21 17:30 | 116.0 | ↑0.8 | |
| 5/21 17:40 | 116.7 | ↑0.7 | |
| 5/21 17:50 | 117.0 | ↑0.3 | 満潮 |
| 5/21 18:00 | 117.1 | ↑0.1 | |
| 5/21 18:10 | 116.9 | ↓-0.2 | |
| 5/21 18:20 | 116.5 | ↓-0.4 | |
| 5/21 18:30 | 115.8 | ↓-0.7 | |
| 5/21 18:40 | 114.9 | ↓-0.9 | |
| 5/21 18:50 | 113.8 | ↓-1.1 | |
| 5/21 19:00 | 112.6 | ↓-1.2 | |
| 5/21 19:10 | 111.2 | ↓-1.4 | |
| 5/21 19:20 | 109.7 | ↓-1.5 | |
| 5/21 19:30 | 108.0 | ↓-1.7 | |
| 5/21 19:40 | 106.2 | ↓-1.8 | |
| 5/21 19:50 | 104.4 | ↓-1.8 | |
| 5/21 20:00 | 102.6 | ↓-1.8 | |
| 5/21 20:10 | 100.7 | ↓-1.9 | |
| 5/21 20:20 | 98.8 | ↓-1.9 | |
| 5/21 20:30 | 96.9 | ↓-1.9 | |
| 5/21 20:40 | 95.1 | ↓-1.8 | |
| 5/21 20:50 | 93.4 | ↓-1.7 | |
| 5/21 21:00 | 91.7 | ↓-1.7 | |
| 5/21 21:10 | 90.1 | ↓-1.6 | |
| 5/21 21:20 | 88.7 | ↓-1.4 | |
| 5/21 21:30 | 87.4 | ↓-1.3 | |
| 5/21 21:40 | 86.2 | ↓-1.2 | |
| 5/21 21:50 | 85.3 | ↓-0.9 | |
| 5/21 22:00 | 84.4 | ↓-0.9 | |
| 5/21 22:10 | 83.8 | ↓-0.6 | |
| 5/21 22:20 | 83.3 | ↓-0.5 | |
| 5/21 22:30 | 83.1 | ↓-0.2 | 干潮 |
| 5/21 22:40 | 83.0 | ↓-0.1 | 干潮 |
| 5/21 22:50 | 83.1 | ↑0.1 | |
| 5/21 23:00 | 83.4 | ↑0.3 | |
| 5/21 23:10 | 83.9 | ↑0.5 | |
| 5/21 23:20 | 84.6 | ↑0.7 | |
| 5/21 23:30 | 85.5 | ↑0.9 | |
| 5/21 23:40 | 86.5 | ↑1.0 | |
| 5/21 23:50 | 87.7 | ↑1.2 |