| 満潮 | 干潮 | 満潮 | 干潮 |
|
21
(日) |
01:17 | 08:14 | 14:59 | 20:03 |
| 120cm | 31cm | 110cm | 76cm | |
|
||||
大洗（茨城）2028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 | 113.7 | ↑1.4 | |
| 5/21 00:10 | 115.0 | ↑1.3 | |
| 5/21 00:20 | 116.1 | ↑1.1 | |
| 5/21 00:30 | 117.1 | ↑1.0 | |
| 5/21 00:40 | 117.9 | ↑0.8 | |
| 5/21 00:50 | 118.5 | ↑0.6 | |
| 5/21 01:00 | 118.9 | ↑0.4 | |
| 5/21 01:10 | 119.1 | ↑0.2 | 満潮 |
| 5/21 01:20 | 119.1 | 0 | |
| 5/21 01:30 | 118.9 | ↓-0.2 | |
| 5/21 01:40 | 118.6 | ↓-0.3 | |
| 5/21 01:50 | 118.0 | ↓-0.6 | |
| 5/21 02:00 | 117.2 | ↓-0.8 | |
| 5/21 02:10 | 116.2 | ↓-1.0 | |
| 5/21 02:20 | 114.9 | ↓-1.3 | |
| 5/21 02:30 | 113.5 | ↓-1.4 | |
| 5/21 02:40 | 111.9 | ↓-1.6 | |
| 5/21 02:50 | 110.1 | ↓-1.8 | |
| 5/21 03:00 | 108.1 | ↓-2.0 | |
| 5/21 03:10 | 105.9 | ↓-2.2 | |
| 5/21 03:20 | 103.5 | ↓-2.4 | |
| 5/21 03:30 | 100.9 | ↓-2.6 | |
| 5/21 03:40 | 98.2 | ↓-2.7 | |
| 5/21 03:50 | 95.4 | ↓-2.8 | |
| 5/21 04:00 | 92.4 | ↓-3.0 | |
| 5/21 04:10 | 89.2 | ↓-3.2 | |
| 5/21 04:20 | 86.0 | ↓-3.2 | |
| 5/21 04:30 | 82.7 | ↓-3.3 | |
| 5/21 04:40 | 79.4 | ↓-3.3 | |
| 5/21 04:50 | 75.9 | ↓-3.5 | 最大潮位差 |
| 5/21 05:00 | 72.5 | ↓-3.4 | |
| 5/21 05:10 | 69.1 | ↓-3.4 | |
| 5/21 05:20 | 65.7 | ↓-3.4 | |
| 5/21 05:30 | 62.3 | ↓-3.4 | |
| 5/21 05:40 | 59.0 | ↓-3.3 | |
| 5/21 05:50 | 55.9 | ↓-3.1 | |
| 5/21 06:00 | 52.8 | ↓-3.1 | |
| 5/21 06:10 | 49.8 | ↓-3.0 | |
| 5/21 06:20 | 47.1 | ↓-2.7 | |
| 5/21 06:30 | 44.4 | ↓-2.7 | |
| 5/21 06:40 | 42.0 | ↓-2.4 | |
| 5/21 06:50 | 39.8 | ↓-2.2 | |
| 5/21 07:00 | 37.8 | ↓-2.0 | |
| 5/21 07:10 | 36.1 | ↓-1.7 | |
| 5/21 07:20 | 34.5 | ↓-1.6 | |
| 5/21 07:30 | 33.3 | ↓-1.2 | |
| 5/21 07:40 | 32.3 | ↓-1.0 | |
| 5/21 07:50 | 31.5 | ↓-0.8 | |
| 5/21 08:00 | 31.0 | ↓-0.5 | |
| 5/21 08:10 | 30.8 | ↓-0.2 | 干潮 |
| 5/21 08:20 | 30.9 | ↑0.1 | |
| 5/21 08:30 | 31.2 | ↑0.3 | |
| 5/21 08:40 | 31.8 | ↑0.6 | |
| 5/21 08:50 | 32.6 | ↑0.8 | |
| 5/21 09:00 | 33.7 | ↑1.1 | |
| 5/21 09:10 | 35.0 | ↑1.3 | |
| 5/21 09:20 | 36.6 | ↑1.6 | |
| 5/21 09:30 | 38.4 | ↑1.8 | |
| 5/21 09:40 | 40.4 | ↑2.0 | |
| 5/21 09:50 | 42.5 | ↑2.1 | |
| 5/21 10:00 | 44.9 | ↑2.4 | |
| 5/21 10:10 | 47.4 | ↑2.5 | |
| 5/21 10:20 | 50.1 | ↑2.7 | |
| 5/21 10:30 | 52.9 | ↑2.8 | |
| 5/21 10:40 | 55.8 | ↑2.9 | |
| 5/21 10:50 | 58.8 | ↑3.0 | |
| 5/21 11:00 | 61.9 | ↑3.1 | |
| 5/21 11:10 | 65.0 | ↑3.1 | |
| 5/21 11:20 | 68.1 | ↑3.1 | |
| 5/21 11:30 | 71.2 | ↑3.1 | |
| 5/21 11:40 | 74.3 | ↑3.1 | |
| 5/21 11:50 | 77.3 | ↑3.0 | |
| 5/21 12:00 | 80.3 | ↑3.0 | |
| 5/21 12:10 | 83.2 | ↑2.9 | |
| 5/21 12:20 | 86.1 | ↑2.9 | |
| 5/21 12:30 | 88.8 | ↑2.7 | |
| 5/21 12:40 | 91.3 | ↑2.5 | |
| 5/21 12:50 | 93.8 | ↑2.5 | |
| 5/21 13:00 | 96.1 | ↑2.3 | |
| 5/21 13:10 | 98.2 | ↑2.1 | |
| 5/21 13:20 | 100.1 | ↑1.9 | |
| 5/21 13:30 | 101.9 | ↑1.8 | |
| 5/21 13:40 | 103.5 | ↑1.6 | |
| 5/21 13:50 | 104.9 | ↑1.4 | |
| 5/21 14:00 | 106.2 | ↑1.3 | |
| 5/21 14:10 | 107.2 | ↑1.0 | |
| 5/21 14:20 | 108.0 | ↑0.8 | |
| 5/21 14:30 | 108.7 | ↑0.7 | |
| 5/21 14:40 | 109.1 | ↑0.4 | |
| 5/21 14:50 | 109.3 | ↑0.2 | 満潮 |
| 5/21 15:00 | 109.4 | ↑0.1 | |
| 5/21 15:10 | 109.3 | ↓-0.1 | |
| 5/21 15:20 | 109.0 | ↓-0.3 | |
| 5/21 15:30 | 108.5 | ↓-0.5 | |
| 5/21 15:40 | 107.8 | ↓-0.7 | |
| 5/21 15:50 | 107.0 | ↓-0.8 | |
| 5/21 16:00 | 106.0 | ↓-1.0 | |
| 5/21 16:10 | 104.9 | ↓-1.1 | |
| 5/21 16:20 | 103.6 | ↓-1.3 | |
| 5/21 16:30 | 102.2 | ↓-1.4 | |
| 5/21 16:40 | 100.8 | ↓-1.4 | |
| 5/21 16:50 | 99.2 | ↓-1.6 | |
| 5/21 17:00 | 97.6 | ↓-1.6 | |
| 5/21 17:10 | 95.9 | ↓-1.7 | |
| 5/21 17:20 | 94.2 | ↓-1.7 | |
| 5/21 17:30 | 92.4 | ↓-1.8 | |
| 5/21 17:40 | 90.7 | ↓-1.7 | |
| 5/21 17:50 | 89.0 | ↓-1.7 | |
| 5/21 18:00 | 87.4 | ↓-1.6 | |
| 5/21 18:10 | 85.8 | ↓-1.6 | |
| 5/21 18:20 | 84.2 | ↓-1.6 | |
| 5/21 18:30 | 82.8 | ↓-1.4 | |
| 5/21 18:40 | 81.5 | ↓-1.3 | |
| 5/21 18:50 | 80.3 | ↓-1.2 | |
| 5/21 19:00 | 79.2 | ↓-1.1 | |
| 5/21 19:10 | 78.2 | ↓-1.0 | |
| 5/21 19:20 | 77.5 | ↓-0.7 | |
| 5/21 19:30 | 76.8 | ↓-0.7 | |
| 5/21 19:40 | 76.4 | ↓-0.4 | |
| 5/21 19:50 | 76.1 | ↓-0.3 | |
| 5/21 20:00 | 75.9 | ↓-0.2 | 干潮 |
| 5/21 20:10 | 76.0 | ↑0.1 | |
| 5/21 20:20 | 76.2 | ↑0.2 | |
| 5/21 20:30 | 76.6 | ↑0.4 | |
| 5/21 20:40 | 77.2 | ↑0.6 | |
| 5/21 20:50 | 78.0 | ↑0.8 | |
| 5/21 21:00 | 78.9 | ↑0.9 | |
| 5/21 21:10 | 80.0 | ↑1.1 | |
| 5/21 21:20 | 81.2 | ↑1.2 | |
| 5/21 21:30 | 82.6 | ↑1.4 | |
| 5/21 21:40 | 84.1 | ↑1.5 | |
| 5/21 21:50 | 85.7 | ↑1.6 | |
| 5/21 22:00 | 87.5 | ↑1.8 | |
| 5/21 22:10 | 89.3 | ↑1.8 | |
| 5/21 22:20 | 91.3 | ↑2.0 | |
| 5/21 22:30 | 93.3 | ↑2.0 | |
| 5/21 22:40 | 95.4 | ↑2.1 | |
| 5/21 22:50 | 97.5 | ↑2.1 | |
| 5/21 23:00 | 99.7 | ↑2.2 | |
| 5/21 23:10 | 101.9 | ↑2.2 | |
| 5/21 23:20 | 104.0 | ↑2.1 | |
| 5/21 23:30 | 106.1 | ↑2.1 | |
| 5/21 23:40 | 108.2 | ↑2.1 | |
| 5/21 23:50 | 110.2 | ↑2.0 |