| 満潮 | 干潮 | 満潮 | 干潮 |
|
20
(月) |
04:33 | 11:56 | 19:13 | - |
| 140cm | -9cm | 122cm | - | |
|
||||
大洗（茨城）2030年05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 |
|---|---|---|---|
| 5/20 00:00 | 84.6 | ↑0.9 | |
| 5/20 00:10 | 85.8 | ↑1.2 | |
| 5/20 00:20 | 87.2 | ↑1.4 | |
| 5/20 00:30 | 88.8 | ↑1.6 | |
| 5/20 00:40 | 90.7 | ↑1.9 | |
| 5/20 00:50 | 92.7 | ↑2.0 | |
| 5/20 01:00 | 94.9 | ↑2.2 | |
| 5/20 01:10 | 97.3 | ↑2.4 | |
| 5/20 01:20 | 99.9 | ↑2.6 | |
| 5/20 01:30 | 102.5 | ↑2.6 | |
| 5/20 01:40 | 105.2 | ↑2.7 | |
| 5/20 01:50 | 108.0 | ↑2.8 | |
| 5/20 02:00 | 110.9 | ↑2.9 | |
| 5/20 02:10 | 113.7 | ↑2.8 | |
| 5/20 02:20 | 116.5 | ↑2.8 | |
| 5/20 02:30 | 119.3 | ↑2.8 | |
| 5/20 02:40 | 122.0 | ↑2.7 | |
| 5/20 02:50 | 124.6 | ↑2.6 | |
| 5/20 03:00 | 127.0 | ↑2.4 | |
| 5/20 03:10 | 129.3 | ↑2.3 | |
| 5/20 03:20 | 131.4 | ↑2.1 | |
| 5/20 03:30 | 133.3 | ↑1.9 | |
| 5/20 03:40 | 134.9 | ↑1.6 | |
| 5/20 03:50 | 136.3 | ↑1.4 | |
| 5/20 04:00 | 137.4 | ↑1.1 | |
| 5/20 04:10 | 138.3 | ↑0.9 | |
| 5/20 04:20 | 138.8 | ↑0.5 | |
| 5/20 04:30 | 139.0 | ↑0.2 | 満潮 |
| 5/20 04:40 | 138.9 | ↓-0.1 | |
| 5/20 04:50 | 138.5 | ↓-0.4 | |
| 5/20 05:00 | 137.8 | ↓-0.7 | |
| 5/20 05:10 | 136.7 | ↓-1.1 | |
| 5/20 05:20 | 135.3 | ↓-1.4 | |
| 5/20 05:30 | 133.5 | ↓-1.8 | |
| 5/20 05:40 | 131.4 | ↓-2.1 | |
| 5/20 05:50 | 129.0 | ↓-2.4 | |
| 5/20 06:00 | 126.3 | ↓-2.7 | |
| 5/20 06:10 | 123.3 | ↓-3.0 | |
| 5/20 06:20 | 119.9 | ↓-3.4 | |
| 5/20 06:30 | 116.3 | ↓-3.6 | |
| 5/20 06:40 | 112.4 | ↓-3.9 | |
| 5/20 06:50 | 108.2 | ↓-4.2 | |
| 5/20 07:00 | 103.8 | ↓-4.4 | |
| 5/20 07:10 | 99.2 | ↓-4.6 | |
| 5/20 07:20 | 94.4 | ↓-4.8 | |
| 5/20 07:30 | 89.5 | ↓-4.9 | |
| 5/20 07:40 | 84.4 | ↓-5.1 | |
| 5/20 07:50 | 79.1 | ↓-5.3 | |
| 5/20 08:00 | 73.8 | ↓-5.3 | |
| 5/20 08:10 | 68.5 | ↓-5.3 | |
| 5/20 08:20 | 63.1 | ↓-5.4 | 最大潮位差 |
| 5/20 08:30 | 57.7 | ↓-5.4 | 最大潮位差 |
| 5/20 08:40 | 52.4 | ↓-5.3 | |
| 5/20 08:50 | 47.1 | ↓-5.3 | |
| 5/20 09:00 | 41.9 | ↓-5.2 | |
| 5/20 09:10 | 36.8 | ↓-5.1 | |
| 5/20 09:20 | 31.9 | ↓-4.9 | |
| 5/20 09:30 | 27.2 | ↓-4.7 | |
| 5/20 09:40 | 22.6 | ↓-4.6 | |
| 5/20 09:50 | 18.3 | ↓-4.3 | |
| 5/20 10:00 | 14.2 | ↓-4.1 | |
| 5/20 10:10 | 10.4 | ↓-3.8 | |
| 5/20 10:20 | 6.9 | ↓-3.5 | |
| 5/20 10:30 | 3.7 | ↓-3.2 | |
| 5/20 10:40 | 0.8 | ↓-2.9 | |
| 5/20 10:50 | -1.8 | ↓-2.6 | |
| 5/20 11:00 | -4.1 | ↓-2.3 | |
| 5/20 11:10 | -5.9 | ↓-1.8 | |
| 5/20 11:20 | -7.5 | ↓-1.6 | |
| 5/20 11:30 | -8.6 | ↓-1.1 | |
| 5/20 11:40 | -9.4 | ↓-0.8 | |
| 5/20 11:50 | -9.8 | ↓-0.4 | 干潮 |
| 5/20 12:00 | -9.8 | 0 | |
| 5/20 12:10 | -9.4 | ↑0.4 | |
| 5/20 12:20 | -8.7 | ↑0.7 | |
| 5/20 12:30 | -7.5 | ↑1.2 | |
| 5/20 12:40 | -6.0 | ↑1.5 | |
| 5/20 12:50 | -4.2 | ↑1.8 | |
| 5/20 13:00 | -2.0 | ↑2.2 | |
| 5/20 13:10 | 0.6 | ↑2.6 | |
| 5/20 13:20 | 3.4 | ↑2.8 | |
| 5/20 13:30 | 6.6 | ↑3.2 | |
| 5/20 13:40 | 10.0 | ↑3.4 | |
| 5/20 13:50 | 13.7 | ↑3.7 | |
| 5/20 14:00 | 17.7 | ↑4.0 | |
| 5/20 14:10 | 21.8 | ↑4.1 | |
| 5/20 14:20 | 26.1 | ↑4.3 | |
| 5/20 14:30 | 30.6 | ↑4.5 | |
| 5/20 14:40 | 35.2 | ↑4.6 | |
| 5/20 14:50 | 39.9 | ↑4.7 | |
| 5/20 15:00 | 44.7 | ↑4.8 | |
| 5/20 15:10 | 49.5 | ↑4.8 | |
| 5/20 15:20 | 54.3 | ↑4.8 | |
| 5/20 15:30 | 59.1 | ↑4.8 | |
| 5/20 15:40 | 63.9 | ↑4.8 | |
| 5/20 15:50 | 68.6 | ↑4.7 | |
| 5/20 16:00 | 73.2 | ↑4.6 | |
| 5/20 16:10 | 77.7 | ↑4.5 | |
| 5/20 16:20 | 82.1 | ↑4.4 | |
| 5/20 16:30 | 86.3 | ↑4.2 | |
| 5/20 16:40 | 90.4 | ↑4.1 | |
| 5/20 16:50 | 94.2 | ↑3.8 | |
| 5/20 17:00 | 97.9 | ↑3.7 | |
| 5/20 17:10 | 101.3 | ↑3.4 | |
| 5/20 17:20 | 104.5 | ↑3.2 | |
| 5/20 17:30 | 107.4 | ↑2.9 | |
| 5/20 17:40 | 110.1 | ↑2.7 | |
| 5/20 17:50 | 112.5 | ↑2.4 | |
| 5/20 18:00 | 114.7 | ↑2.2 | |
| 5/20 18:10 | 116.6 | ↑1.9 | |
| 5/20 18:20 | 118.2 | ↑1.6 | |
| 5/20 18:30 | 119.5 | ↑1.3 | |
| 5/20 18:40 | 120.5 | ↑1.0 | |
| 5/20 18:50 | 121.2 | ↑0.7 | |
| 5/20 19:00 | 121.7 | ↑0.5 | |
| 5/20 19:10 | 121.8 | ↑0.1 | 満潮 |
| 5/20 19:20 | 121.8 | 0 | |
| 5/20 19:30 | 121.4 | ↓-0.4 | |
| 5/20 19:40 | 120.8 | ↓-0.6 | |
| 5/20 19:50 | 120.0 | ↓-0.8 | |
| 5/20 20:00 | 119.0 | ↓-1.0 | |
| 5/20 20:10 | 117.8 | ↓-1.2 | |
| 5/20 20:20 | 116.4 | ↓-1.4 | |
| 5/20 20:30 | 114.8 | ↓-1.6 | |
| 5/20 20:40 | 113.1 | ↓-1.7 | |
| 5/20 20:50 | 111.3 | ↓-1.8 | |
| 5/20 21:00 | 109.4 | ↓-1.9 | |
| 5/20 21:10 | 107.4 | ↓-2.0 | |
| 5/20 21:20 | 105.4 | ↓-2.0 | |
| 5/20 21:30 | 103.4 | ↓-2.0 | |
| 5/20 21:40 | 101.4 | ↓-2.0 | |
| 5/20 21:50 | 99.3 | ↓-2.1 | |
| 5/20 22:00 | 97.4 | ↓-1.9 | |
| 5/20 22:10 | 95.5 | ↓-1.9 | |
| 5/20 22:20 | 93.7 | ↓-1.8 | |
| 5/20 22:30 | 92.0 | ↓-1.7 | |
| 5/20 22:40 | 90.4 | ↓-1.6 | |
| 5/20 22:50 | 88.9 | ↓-1.5 | |
| 5/20 23:00 | 87.6 | ↓-1.3 | |
| 5/20 23:10 | 86.5 | ↓-1.1 | |
| 5/20 23:20 | 85.5 | ↓-1.0 | |
| 5/20 23:30 | 84.7 | ↓-0.8 | |
| 5/20 23:40 | 84.2 | ↓-0.5 | |
| 5/20 23:50 | 83.8 | ↓-0.4 |