| 満潮 | 干潮 | 満潮 | 干潮 |
|
20
(土) |
06:49 | 01:05 | 19:31 | 13:03 |
| 128cm | 63cm | 137cm | 53cm | |
|
||||
日立（茨城）2030年07月20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 |
|---|---|---|---|
| 7/20 00:00 | 67.7 | ↓-1.8 | |
| 7/20 00:10 | 66.2 | ↓-1.5 | |
| 7/20 00:20 | 64.9 | ↓-1.3 | |
| 7/20 00:30 | 63.8 | ↓-1.1 | |
| 7/20 00:40 | 63.0 | ↓-0.8 | |
| 7/20 00:50 | 62.5 | ↓-0.5 | |
| 7/20 01:00 | 62.2 | ↓-0.3 | 干潮 |
| 7/20 01:10 | 62.3 | ↑0.1 | |
| 7/20 01:20 | 62.5 | ↑0.2 | |
| 7/20 01:30 | 63.1 | ↑0.6 | |
| 7/20 01:40 | 64.0 | ↑0.9 | |
| 7/20 01:50 | 65.1 | ↑1.1 | |
| 7/20 02:00 | 66.4 | ↑1.3 | |
| 7/20 02:10 | 68.1 | ↑1.7 | |
| 7/20 02:20 | 69.9 | ↑1.8 | |
| 7/20 02:30 | 72.0 | ↑2.1 | |
| 7/20 02:40 | 74.3 | ↑2.3 | |
| 7/20 02:50 | 76.7 | ↑2.4 | |
| 7/20 03:00 | 79.4 | ↑2.7 | |
| 7/20 03:10 | 82.1 | ↑2.7 | |
| 7/20 03:20 | 85.0 | ↑2.9 | |
| 7/20 03:30 | 87.9 | ↑2.9 | |
| 7/20 03:40 | 90.9 | ↑3.0 | |
| 7/20 03:50 | 93.9 | ↑3.0 | |
| 7/20 04:00 | 96.9 | ↑3.0 | |
| 7/20 04:10 | 99.9 | ↑3.0 | |
| 7/20 04:20 | 102.8 | ↑2.9 | |
| 7/20 04:30 | 105.7 | ↑2.9 | |
| 7/20 04:40 | 108.4 | ↑2.7 | |
| 7/20 04:50 | 111.1 | ↑2.7 | |
| 7/20 05:00 | 113.6 | ↑2.5 | |
| 7/20 05:10 | 115.9 | ↑2.3 | |
| 7/20 05:20 | 118.0 | ↑2.1 | |
| 7/20 05:30 | 120.0 | ↑2.0 | |
| 7/20 05:40 | 121.7 | ↑1.7 | |
| 7/20 05:50 | 123.3 | ↑1.6 | |
| 7/20 06:00 | 124.6 | ↑1.3 | |
| 7/20 06:10 | 125.7 | ↑1.1 | |
| 7/20 06:20 | 126.5 | ↑0.8 | |
| 7/20 06:30 | 127.1 | ↑0.6 | |
| 7/20 06:40 | 127.4 | ↑0.3 | 満潮 |
| 7/20 06:50 | 127.5 | ↑0.1 | |
| 7/20 07:00 | 127.3 | ↓-0.2 | |
| 7/20 07:10 | 126.9 | ↓-0.4 | |
| 7/20 07:20 | 126.2 | ↓-0.7 | |
| 7/20 07:30 | 125.2 | ↓-1.0 | |
| 7/20 07:40 | 124.0 | ↓-1.2 | |
| 7/20 07:50 | 122.6 | ↓-1.4 | |
| 7/20 08:00 | 120.9 | ↓-1.7 | |
| 7/20 08:10 | 118.9 | ↓-2.0 | |
| 7/20 08:20 | 116.8 | ↓-2.1 | |
| 7/20 08:30 | 114.5 | ↓-2.3 | |
| 7/20 08:40 | 111.9 | ↓-2.6 | |
| 7/20 08:50 | 109.3 | ↓-2.6 | |
| 7/20 09:00 | 106.4 | ↓-2.9 | |
| 7/20 09:10 | 103.5 | ↓-2.9 | |
| 7/20 09:20 | 100.5 | ↓-3.0 | |
| 7/20 09:30 | 97.4 | ↓-3.1 | |
| 7/20 09:40 | 94.2 | ↓-3.2 | |
| 7/20 09:50 | 91.0 | ↓-3.2 | |
| 7/20 10:00 | 87.8 | ↓-3.2 | |
| 7/20 10:10 | 84.7 | ↓-3.1 | |
| 7/20 10:20 | 81.6 | ↓-3.1 | |
| 7/20 10:30 | 78.5 | ↓-3.1 | |
| 7/20 10:40 | 75.6 | ↓-2.9 | |
| 7/20 10:50 | 72.8 | ↓-2.8 | |
| 7/20 11:00 | 70.1 | ↓-2.7 | |
| 7/20 11:10 | 67.5 | ↓-2.6 | |
| 7/20 11:20 | 65.1 | ↓-2.4 | |
| 7/20 11:30 | 62.9 | ↓-2.2 | |
| 7/20 11:40 | 60.9 | ↓-2.0 | |
| 7/20 11:50 | 59.0 | ↓-1.9 | |
| 7/20 12:00 | 57.4 | ↓-1.6 | |
| 7/20 12:10 | 56.0 | ↓-1.4 | |
| 7/20 12:20 | 54.8 | ↓-1.2 | |
| 7/20 12:30 | 53.9 | ↓-0.9 | |
| 7/20 12:40 | 53.2 | ↓-0.7 | |
| 7/20 12:50 | 52.8 | ↓-0.4 | |
| 7/20 13:00 | 52.6 | ↓-0.2 | 干潮 |
| 7/20 13:10 | 52.7 | ↑0.1 | |
| 7/20 13:20 | 53.1 | ↑0.4 | |
| 7/20 13:30 | 53.7 | ↑0.6 | |
| 7/20 13:40 | 54.6 | ↑0.9 | |
| 7/20 13:50 | 55.7 | ↑1.1 | |
| 7/20 14:00 | 57.1 | ↑1.4 | |
| 7/20 14:10 | 58.8 | ↑1.7 | |
| 7/20 14:20 | 60.7 | ↑1.9 | |
| 7/20 14:30 | 62.8 | ↑2.1 | |
| 7/20 14:40 | 65.2 | ↑2.4 | |
| 7/20 14:50 | 67.8 | ↑2.6 | |
| 7/20 15:00 | 70.5 | ↑2.7 | |
| 7/20 15:10 | 73.4 | ↑2.9 | |
| 7/20 15:20 | 76.5 | ↑3.1 | |
| 7/20 15:30 | 79.7 | ↑3.2 | |
| 7/20 15:40 | 82.9 | ↑3.2 | |
| 7/20 15:50 | 86.3 | ↑3.4 | |
| 7/20 16:00 | 89.7 | ↑3.4 | |
| 7/20 16:10 | 93.1 | ↑3.4 | |
| 7/20 16:20 | 96.6 | ↑3.5 | 最大潮位差 |
| 7/20 16:30 | 100.0 | ↑3.4 | |
| 7/20 16:40 | 103.3 | ↑3.3 | |
| 7/20 16:50 | 106.6 | ↑3.3 | |
| 7/20 17:00 | 109.8 | ↑3.2 | |
| 7/20 17:10 | 112.9 | ↑3.1 | |
| 7/20 17:20 | 115.9 | ↑3.0 | |
| 7/20 17:30 | 118.7 | ↑2.8 | |
| 7/20 17:40 | 121.3 | ↑2.6 | |
| 7/20 17:50 | 123.8 | ↑2.5 | |
| 7/20 18:00 | 126.1 | ↑2.3 | |
| 7/20 18:10 | 128.2 | ↑2.1 | |
| 7/20 18:20 | 130.0 | ↑1.8 | |
| 7/20 18:30 | 131.7 | ↑1.7 | |
| 7/20 18:40 | 133.1 | ↑1.4 | |
| 7/20 18:50 | 134.3 | ↑1.2 | |
| 7/20 19:00 | 135.2 | ↑0.9 | |
| 7/20 19:10 | 135.8 | ↑0.6 | |
| 7/20 19:20 | 136.2 | ↑0.4 | |
| 7/20 19:30 | 136.4 | ↑0.2 | 満潮 |
| 7/20 19:40 | 136.2 | ↓-0.2 | |
| 7/20 19:50 | 135.8 | ↓-0.4 | |
| 7/20 20:00 | 135.1 | ↓-0.7 | |
| 7/20 20:10 | 134.2 | ↓-0.9 | |
| 7/20 20:20 | 133.0 | ↓-1.2 | |
| 7/20 20:30 | 131.6 | ↓-1.4 | |
| 7/20 20:40 | 129.9 | ↓-1.7 | |
| 7/20 20:50 | 128.0 | ↓-1.9 | |
| 7/20 21:00 | 125.9 | ↓-2.1 | |
| 7/20 21:10 | 123.5 | ↓-2.4 | |
| 7/20 21:20 | 121.0 | ↓-2.5 | |
| 7/20 21:30 | 118.4 | ↓-2.6 | |
| 7/20 21:40 | 115.6 | ↓-2.8 | |
| 7/20 21:50 | 112.6 | ↓-3.0 | |
| 7/20 22:00 | 109.6 | ↓-3.0 | |
| 7/20 22:10 | 106.5 | ↓-3.1 | |
| 7/20 22:20 | 103.4 | ↓-3.1 | |
| 7/20 22:30 | 100.2 | ↓-3.2 | |
| 7/20 22:40 | 97.1 | ↓-3.1 | |
| 7/20 22:50 | 93.9 | ↓-3.2 | |
| 7/20 23:00 | 90.8 | ↓-3.1 | |
| 7/20 23:10 | 87.8 | ↓-3.0 | |
| 7/20 23:20 | 84.8 | ↓-3.0 | |
| 7/20 23:30 | 81.9 | ↓-2.9 | |
| 7/20 23:40 | 79.2 | ↓-2.7 | |
| 7/20 23:50 | 76.5 | ↓-2.7 |