| 満潮 | 干潮 | 満潮 | 干潮 |
|
4
(日) |
01:36 | 08:13 | 14:36 | 20:10 |
| 113cm | 39cm | 109cm | 56cm | |
|
||||
日立（茨城）2031年05月4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 |
|---|---|---|---|
| 5/4 00:00 | 103.8 | ↑1.9 | |
| 5/4 00:10 | 105.6 | ↑1.8 | |
| 5/4 00:20 | 107.1 | ↑1.5 | |
| 5/4 00:30 | 108.5 | ↑1.4 | |
| 5/4 00:40 | 109.7 | ↑1.2 | |
| 5/4 00:50 | 110.7 | ↑1.0 | |
| 5/4 01:00 | 111.5 | ↑0.8 | |
| 5/4 01:10 | 112.1 | ↑0.6 | |
| 5/4 01:20 | 112.5 | ↑0.4 | |
| 5/4 01:30 | 112.7 | ↑0.2 | 満潮 |
| 5/4 01:40 | 112.7 | 0 | |
| 5/4 01:50 | 112.5 | ↓-0.2 | |
| 5/4 02:00 | 112.1 | ↓-0.4 | |
| 5/4 02:10 | 111.5 | ↓-0.6 | |
| 5/4 02:20 | 110.6 | ↓-0.9 | |
| 5/4 02:30 | 109.6 | ↓-1.0 | |
| 5/4 02:40 | 108.3 | ↓-1.3 | |
| 5/4 02:50 | 106.9 | ↓-1.4 | |
| 5/4 03:00 | 105.2 | ↓-1.7 | |
| 5/4 03:10 | 103.4 | ↓-1.8 | |
| 5/4 03:20 | 101.4 | ↓-2.0 | |
| 5/4 03:30 | 99.2 | ↓-2.2 | |
| 5/4 03:40 | 96.8 | ↓-2.4 | |
| 5/4 03:50 | 94.3 | ↓-2.5 | |
| 5/4 04:00 | 91.6 | ↓-2.7 | |
| 5/4 04:10 | 88.8 | ↓-2.8 | |
| 5/4 04:20 | 86.0 | ↓-2.8 | |
| 5/4 04:30 | 83.0 | ↓-3.0 | |
| 5/4 04:40 | 80.0 | ↓-3.0 | |
| 5/4 04:50 | 77.0 | ↓-3.0 | |
| 5/4 05:00 | 73.9 | ↓-3.1 | 最大潮位差 |
| 5/4 05:10 | 70.9 | ↓-3.0 | |
| 5/4 05:20 | 67.9 | ↓-3.0 | |
| 5/4 05:30 | 64.9 | ↓-3.0 | |
| 5/4 05:40 | 62.1 | ↓-2.8 | |
| 5/4 05:50 | 59.3 | ↓-2.8 | |
| 5/4 06:00 | 56.7 | ↓-2.6 | |
| 5/4 06:10 | 54.1 | ↓-2.6 | |
| 5/4 06:20 | 51.8 | ↓-2.3 | |
| 5/4 06:30 | 49.6 | ↓-2.2 | |
| 5/4 06:40 | 47.6 | ↓-2.0 | |
| 5/4 06:50 | 45.7 | ↓-1.9 | |
| 5/4 07:00 | 44.1 | ↓-1.6 | |
| 5/4 07:10 | 42.7 | ↓-1.4 | |
| 5/4 07:20 | 41.4 | ↓-1.3 | |
| 5/4 07:30 | 40.4 | ↓-1.0 | |
| 5/4 07:40 | 39.6 | ↓-0.8 | |
| 5/4 07:50 | 39.0 | ↓-0.6 | |
| 5/4 08:00 | 38.6 | ↓-0.4 | |
| 5/4 08:10 | 38.4 | ↓-0.2 | 干潮 |
| 5/4 08:20 | 38.5 | ↑0.1 | |
| 5/4 08:30 | 38.8 | ↑0.3 | |
| 5/4 08:40 | 39.4 | ↑0.6 | |
| 5/4 08:50 | 40.1 | ↑0.7 | |
| 5/4 09:00 | 41.1 | ↑1.0 | |
| 5/4 09:10 | 42.3 | ↑1.2 | |
| 5/4 09:20 | 43.7 | ↑1.4 | |
| 5/4 09:30 | 45.4 | ↑1.7 | |
| 5/4 09:40 | 47.2 | ↑1.8 | |
| 5/4 09:50 | 49.3 | ↑2.1 | |
| 5/4 10:00 | 51.5 | ↑2.2 | |
| 5/4 10:10 | 53.9 | ↑2.4 | |
| 5/4 10:20 | 56.4 | ↑2.5 | |
| 5/4 10:30 | 59.0 | ↑2.6 | |
| 5/4 10:40 | 61.8 | ↑2.8 | |
| 5/4 10:50 | 64.7 | ↑2.9 | |
| 5/4 11:00 | 67.6 | ↑2.9 | |
| 5/4 11:10 | 70.5 | ↑2.9 | |
| 5/4 11:20 | 73.5 | ↑3.0 | |
| 5/4 11:30 | 76.4 | ↑2.9 | |
| 5/4 11:40 | 79.4 | ↑3.0 | |
| 5/4 11:50 | 82.2 | ↑2.8 | |
| 5/4 12:00 | 85.1 | ↑2.9 | |
| 5/4 12:10 | 87.8 | ↑2.7 | |
| 5/4 12:20 | 90.4 | ↑2.6 | |
| 5/4 12:30 | 92.8 | ↑2.4 | |
| 5/4 12:40 | 95.2 | ↑2.4 | |
| 5/4 12:50 | 97.3 | ↑2.1 | |
| 5/4 13:00 | 99.4 | ↑2.1 | |
| 5/4 13:10 | 101.2 | ↑1.8 | |
| 5/4 13:20 | 102.9 | ↑1.7 | |
| 5/4 13:30 | 104.3 | ↑1.4 | |
| 5/4 13:40 | 105.6 | ↑1.3 | |
| 5/4 13:50 | 106.7 | ↑1.1 | |
| 5/4 14:00 | 107.6 | ↑0.9 | |
| 5/4 14:10 | 108.2 | ↑0.6 | |
| 5/4 14:20 | 108.6 | ↑0.4 | |
| 5/4 14:30 | 108.9 | ↑0.3 | 満潮 |
| 5/4 14:40 | 108.8 | ↓-0.1 | |
| 5/4 14:50 | 108.6 | ↓-0.2 | |
| 5/4 15:00 | 108.1 | ↓-0.5 | |
| 5/4 15:10 | 107.5 | ↓-0.6 | |
| 5/4 15:20 | 106.5 | ↓-1.0 | |
| 5/4 15:30 | 105.4 | ↓-1.1 | |
| 5/4 15:40 | 104.1 | ↓-1.3 | |
| 5/4 15:50 | 102.5 | ↓-1.6 | |
| 5/4 16:00 | 100.8 | ↓-1.7 | |
| 5/4 16:10 | 98.9 | ↓-1.9 | |
| 5/4 16:20 | 96.8 | ↓-2.1 | |
| 5/4 16:30 | 94.6 | ↓-2.2 | |
| 5/4 16:40 | 92.2 | ↓-2.4 | |
| 5/4 16:50 | 89.8 | ↓-2.4 | |
| 5/4 17:00 | 87.3 | ↓-2.5 | |
| 5/4 17:10 | 84.7 | ↓-2.6 | |
| 5/4 17:20 | 82.1 | ↓-2.6 | |
| 5/4 17:30 | 79.6 | ↓-2.5 | |
| 5/4 17:40 | 77.0 | ↓-2.6 | |
| 5/4 17:50 | 74.5 | ↓-2.5 | |
| 5/4 18:00 | 72.1 | ↓-2.4 | |
| 5/4 18:10 | 69.8 | ↓-2.3 | |
| 5/4 18:20 | 67.6 | ↓-2.2 | |
| 5/4 18:30 | 65.6 | ↓-2.0 | |
| 5/4 18:40 | 63.7 | ↓-1.9 | |
| 5/4 18:50 | 62.0 | ↓-1.7 | |
| 5/4 19:00 | 60.4 | ↓-1.6 | |
| 5/4 19:10 | 59.0 | ↓-1.4 | |
| 5/4 19:20 | 57.9 | ↓-1.1 | |
| 5/4 19:30 | 56.9 | ↓-1.0 | |
| 5/4 19:40 | 56.2 | ↓-0.7 | |
| 5/4 19:50 | 55.7 | ↓-0.5 | |
| 5/4 20:00 | 55.3 | ↓-0.4 | 干潮 |
| 5/4 20:10 | 55.2 | ↓-0.1 | 干潮 |
| 5/4 20:20 | 55.4 | ↑0.2 | |
| 5/4 20:30 | 55.7 | ↑0.3 | |
| 5/4 20:40 | 56.3 | ↑0.6 | |
| 5/4 20:50 | 57.1 | ↑0.8 | |
| 5/4 21:00 | 58.1 | ↑1.0 | |
| 5/4 21:10 | 59.3 | ↑1.2 | |
| 5/4 21:20 | 60.7 | ↑1.4 | |
| 5/4 21:30 | 62.4 | ↑1.7 | |
| 5/4 21:40 | 64.2 | ↑1.8 | |
| 5/4 21:50 | 66.2 | ↑2.0 | |
| 5/4 22:00 | 68.4 | ↑2.2 | |
| 5/4 22:10 | 70.8 | ↑2.4 | |
| 5/4 22:20 | 73.2 | ↑2.4 | |
| 5/4 22:30 | 75.9 | ↑2.7 | |
| 5/4 22:40 | 78.6 | ↑2.7 | |
| 5/4 22:50 | 81.4 | ↑2.8 | |
| 5/4 23:00 | 84.2 | ↑2.8 | |
| 5/4 23:10 | 87.1 | ↑2.9 | |
| 5/4 23:20 | 89.9 | ↑2.8 | |
| 5/4 23:30 | 92.8 | ↑2.9 | |
| 5/4 23:40 | 95.6 | ↑2.8 | |
| 5/4 23:50 | 98.3 | ↑2.7 |