| 満潮 | 干潮 | 満潮 | 干潮 |
|
30
(日) |
12:40 | 04:25 | 21:08 | 14:41 |
| 105cm | 47cm | 139cm | 104cm | |
|
||||
日立（茨城）2028年07月30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 |
|---|---|---|---|
| 7/30 00:00 | 100.0 | ↓-3.1 | 最大潮位差 |
| 7/30 00:10 | 96.9 | ↓-3.1 | 最大潮位差 |
| 7/30 00:20 | 93.8 | ↓-3.1 | 最大潮位差 |
| 7/30 00:30 | 90.7 | ↓-3.1 | 最大潮位差 |
| 7/30 00:40 | 87.6 | ↓-3.1 | 最大潮位差 |
| 7/30 00:50 | 84.5 | ↓-3.1 | 最大潮位差 |
| 7/30 01:00 | 81.5 | ↓-3.0 | |
| 7/30 01:10 | 78.5 | ↓-3.0 | |
| 7/30 01:20 | 75.7 | ↓-2.8 | |
| 7/30 01:30 | 72.8 | ↓-2.9 | |
| 7/30 01:40 | 70.1 | ↓-2.7 | |
| 7/30 01:50 | 67.5 | ↓-2.6 | |
| 7/30 02:00 | 65.0 | ↓-2.5 | |
| 7/30 02:10 | 62.6 | ↓-2.4 | |
| 7/30 02:20 | 60.3 | ↓-2.3 | |
| 7/30 02:30 | 58.2 | ↓-2.1 | |
| 7/30 02:40 | 56.2 | ↓-2.0 | |
| 7/30 02:50 | 54.4 | ↓-1.8 | |
| 7/30 03:00 | 52.8 | ↓-1.6 | |
| 7/30 03:10 | 51.3 | ↓-1.5 | |
| 7/30 03:20 | 50.0 | ↓-1.3 | |
| 7/30 03:30 | 48.9 | ↓-1.1 | |
| 7/30 03:40 | 48.0 | ↓-0.9 | |
| 7/30 03:50 | 47.3 | ↓-0.7 | |
| 7/30 04:00 | 46.7 | ↓-0.6 | |
| 7/30 04:10 | 46.4 | ↓-0.3 | |
| 7/30 04:20 | 46.2 | ↓-0.2 | 干潮 |
| 7/30 04:30 | 46.2 | 0 | |
| 7/30 04:40 | 46.4 | ↑0.2 | |
| 7/30 04:50 | 46.8 | ↑0.4 | |
| 7/30 05:00 | 47.4 | ↑0.6 | |
| 7/30 05:10 | 48.0 | ↑0.6 | |
| 7/30 05:20 | 48.9 | ↑0.9 | |
| 7/30 05:30 | 49.9 | ↑1.0 | |
| 7/30 05:40 | 51.0 | ↑1.1 | |
| 7/30 05:50 | 52.2 | ↑1.2 | |
| 7/30 06:00 | 53.6 | ↑1.4 | |
| 7/30 06:10 | 55.0 | ↑1.4 | |
| 7/30 06:20 | 56.6 | ↑1.6 | |
| 7/30 06:30 | 58.2 | ↑1.6 | |
| 7/30 06:40 | 59.9 | ↑1.7 | |
| 7/30 06:50 | 61.7 | ↑1.8 | |
| 7/30 07:00 | 63.6 | ↑1.9 | |
| 7/30 07:10 | 65.4 | ↑1.8 | |
| 7/30 07:20 | 67.4 | ↑2.0 | |
| 7/30 07:30 | 69.3 | ↑1.9 | |
| 7/30 07:40 | 71.3 | ↑2.0 | |
| 7/30 07:50 | 73.3 | ↑2.0 | |
| 7/30 08:00 | 75.3 | ↑2.0 | |
| 7/30 08:10 | 77.3 | ↑2.0 | |
| 7/30 08:20 | 79.3 | ↑2.0 | |
| 7/30 08:30 | 81.2 | ↑1.9 | |
| 7/30 08:40 | 83.1 | ↑1.9 | |
| 7/30 08:50 | 85.0 | ↑1.9 | |
| 7/30 09:00 | 86.8 | ↑1.8 | |
| 7/30 09:10 | 88.5 | ↑1.7 | |
| 7/30 09:20 | 90.1 | ↑1.6 | |
| 7/30 09:30 | 91.7 | ↑1.6 | |
| 7/30 09:40 | 93.2 | ↑1.5 | |
| 7/30 09:50 | 94.6 | ↑1.4 | |
| 7/30 10:00 | 95.9 | ↑1.3 | |
| 7/30 10:10 | 97.2 | ↑1.3 | |
| 7/30 10:20 | 98.3 | ↑1.1 | |
| 7/30 10:30 | 99.3 | ↑1.0 | |
| 7/30 10:40 | 100.2 | ↑0.9 | |
| 7/30 10:50 | 101.1 | ↑0.9 | |
| 7/30 11:00 | 101.8 | ↑0.7 | |
| 7/30 11:10 | 102.4 | ↑0.6 | |
| 7/30 11:20 | 103.0 | ↑0.6 | |
| 7/30 11:30 | 103.5 | ↑0.5 | |
| 7/30 11:40 | 103.9 | ↑0.4 | |
| 7/30 11:50 | 104.2 | ↑0.3 | |
| 7/30 12:00 | 104.4 | ↑0.2 | |
| 7/30 12:10 | 104.6 | ↑0.2 | |
| 7/30 12:20 | 104.7 | ↑0.1 | |
| 7/30 12:30 | 104.8 | ↑0.1 | 満潮 |
| 7/30 12:40 | 104.8 | 0 | 満潮 |
| 7/30 12:50 | 104.8 | 0 | |
| 7/30 13:00 | 104.8 | 0 | |
| 7/30 13:10 | 104.7 | ↓-0.1 | |
| 7/30 13:20 | 104.5 | ↓-0.2 | |
| 7/30 13:30 | 104.4 | ↓-0.1 | |
| 7/30 13:40 | 104.2 | ↓-0.2 | |
| 7/30 13:50 | 104.1 | ↓-0.1 | |
| 7/30 14:00 | 104.0 | ↓-0.1 | |
| 7/30 14:10 | 103.8 | ↓-0.2 | |
| 7/30 14:20 | 103.7 | ↓-0.1 | |
| 7/30 14:30 | 103.6 | ↓-0.1 | |
| 7/30 14:40 | 103.6 | 0 | 干潮 |
| 7/30 14:50 | 103.6 | 0 | |
| 7/30 15:00 | 103.7 | ↑0.1 | |
| 7/30 15:10 | 103.9 | ↑0.2 | |
| 7/30 15:20 | 104.1 | ↑0.2 | |
| 7/30 15:30 | 104.4 | ↑0.3 | |
| 7/30 15:40 | 104.9 | ↑0.5 | |
| 7/30 15:50 | 105.4 | ↑0.5 | |
| 7/30 16:00 | 106.0 | ↑0.6 | |
| 7/30 16:10 | 106.7 | ↑0.7 | |
| 7/30 16:20 | 107.5 | ↑0.8 | |
| 7/30 16:30 | 108.3 | ↑0.8 | |
| 7/30 16:40 | 109.3 | ↑1.0 | |
| 7/30 16:50 | 110.4 | ↑1.1 | |
| 7/30 17:00 | 111.5 | ↑1.1 | |
| 7/30 17:10 | 112.7 | ↑1.2 | |
| 7/30 17:20 | 114.0 | ↑1.3 | |
| 7/30 17:30 | 115.4 | ↑1.4 | |
| 7/30 17:40 | 116.7 | ↑1.3 | |
| 7/30 17:50 | 118.2 | ↑1.5 | |
| 7/30 18:00 | 119.6 | ↑1.4 | |
| 7/30 18:10 | 121.0 | ↑1.4 | |
| 7/30 18:20 | 122.5 | ↑1.5 | |
| 7/30 18:30 | 124.0 | ↑1.5 | |
| 7/30 18:40 | 125.4 | ↑1.4 | |
| 7/30 18:50 | 126.8 | ↑1.4 | |
| 7/30 19:00 | 128.2 | ↑1.4 | |
| 7/30 19:10 | 129.5 | ↑1.3 | |
| 7/30 19:20 | 130.7 | ↑1.2 | |
| 7/30 19:30 | 131.9 | ↑1.2 | |
| 7/30 19:40 | 133.0 | ↑1.1 | |
| 7/30 19:50 | 134.1 | ↑1.1 | |
| 7/30 20:00 | 135.0 | ↑0.9 | |
| 7/30 20:10 | 135.8 | ↑0.8 | |
| 7/30 20:20 | 136.6 | ↑0.8 | |
| 7/30 20:30 | 137.2 | ↑0.6 | |
| 7/30 20:40 | 137.6 | ↑0.4 | |
| 7/30 20:50 | 137.9 | ↑0.3 | |
| 7/30 21:00 | 138.1 | ↑0.2 | 満潮 |
| 7/30 21:10 | 138.2 | ↑0.1 | |
| 7/30 21:20 | 138.0 | ↓-0.2 | |
| 7/30 21:30 | 137.7 | ↓-0.3 | |
| 7/30 21:40 | 137.3 | ↓-0.4 | |
| 7/30 21:50 | 136.7 | ↓-0.6 | |
| 7/30 22:00 | 135.9 | ↓-0.8 | |
| 7/30 22:10 | 134.9 | ↓-1.0 | |
| 7/30 22:20 | 133.8 | ↓-1.1 | |
| 7/30 22:30 | 132.5 | ↓-1.3 | |
| 7/30 22:40 | 131.1 | ↓-1.4 | |
| 7/30 22:50 | 129.5 | ↓-1.6 | |
| 7/30 23:00 | 127.8 | ↓-1.7 | |
| 7/30 23:10 | 125.9 | ↓-1.9 | |
| 7/30 23:20 | 123.9 | ↓-2.0 | |
| 7/30 23:30 | 121.8 | ↓-2.1 | |
| 7/30 23:40 | 119.6 | ↓-2.2 | |
| 7/30 23:50 | 117.3 | ↓-2.3 |