| 満潮 | 干潮 | 満潮 | 干潮 |
|
20
(火) |
02:24 | 09:27 | 16:20 | 21:24 |
| 127cm | 8cm | 117cm | 76cm | |
|
||||
日立（茨城）2031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 | 105.5 | ↑2.5 | |
| 5/20 00:10 | 108.0 | ↑2.5 | |
| 5/20 00:20 | 110.4 | ↑2.4 | |
| 5/20 00:30 | 112.6 | ↑2.2 | |
| 5/20 00:40 | 114.8 | ↑2.2 | |
| 5/20 00:50 | 116.8 | ↑2.0 | |
| 5/20 01:00 | 118.7 | ↑1.9 | |
| 5/20 01:10 | 120.4 | ↑1.7 | |
| 5/20 01:20 | 121.9 | ↑1.5 | |
| 5/20 01:30 | 123.2 | ↑1.3 | |
| 5/20 01:40 | 124.3 | ↑1.1 | |
| 5/20 01:50 | 125.2 | ↑0.9 | |
| 5/20 02:00 | 125.9 | ↑0.7 | |
| 5/20 02:10 | 126.3 | ↑0.4 | |
| 5/20 02:20 | 126.5 | ↑0.2 | 満潮 |
| 5/20 02:30 | 126.4 | ↓-0.1 | |
| 5/20 02:40 | 126.1 | ↓-0.3 | |
| 5/20 02:50 | 125.5 | ↓-0.6 | |
| 5/20 03:00 | 124.7 | ↓-0.8 | |
| 5/20 03:10 | 123.5 | ↓-1.2 | |
| 5/20 03:20 | 122.1 | ↓-1.4 | |
| 5/20 03:30 | 120.4 | ↓-1.7 | |
| 5/20 03:40 | 118.4 | ↓-2.0 | |
| 5/20 03:50 | 116.2 | ↓-2.2 | |
| 5/20 04:00 | 113.6 | ↓-2.6 | |
| 5/20 04:10 | 110.8 | ↓-2.8 | |
| 5/20 04:20 | 107.7 | ↓-3.1 | |
| 5/20 04:30 | 104.4 | ↓-3.3 | |
| 5/20 04:40 | 100.9 | ↓-3.5 | |
| 5/20 04:50 | 97.1 | ↓-3.8 | |
| 5/20 05:00 | 93.1 | ↓-4.0 | |
| 5/20 05:10 | 89.0 | ↓-4.1 | |
| 5/20 05:20 | 84.7 | ↓-4.3 | |
| 5/20 05:30 | 80.3 | ↓-4.4 | |
| 5/20 05:40 | 75.8 | ↓-4.5 | |
| 5/20 05:50 | 71.2 | ↓-4.6 | 最大潮位差 |
| 5/20 06:00 | 66.7 | ↓-4.5 | |
| 5/20 06:10 | 62.1 | ↓-4.6 | 最大潮位差 |
| 5/20 06:20 | 57.5 | ↓-4.6 | 最大潮位差 |
| 5/20 06:30 | 53.1 | ↓-4.4 | |
| 5/20 06:40 | 48.7 | ↓-4.4 | |
| 5/20 06:50 | 44.4 | ↓-4.3 | |
| 5/20 07:00 | 40.3 | ↓-4.1 | |
| 5/20 07:10 | 36.3 | ↓-4.0 | |
| 5/20 07:20 | 32.6 | ↓-3.7 | |
| 5/20 07:30 | 29.0 | ↓-3.6 | |
| 5/20 07:40 | 25.7 | ↓-3.3 | |
| 5/20 07:50 | 22.6 | ↓-3.1 | |
| 5/20 08:00 | 19.7 | ↓-2.9 | |
| 5/20 08:10 | 17.2 | ↓-2.5 | |
| 5/20 08:20 | 14.9 | ↓-2.3 | |
| 5/20 08:30 | 12.9 | ↓-2.0 | |
| 5/20 08:40 | 11.2 | ↓-1.7 | |
| 5/20 08:50 | 9.8 | ↓-1.4 | |
| 5/20 09:00 | 8.8 | ↓-1.0 | |
| 5/20 09:10 | 8.1 | ↓-0.7 | |
| 5/20 09:20 | 7.7 | ↓-0.4 | 干潮 |
| 5/20 09:30 | 7.6 | ↓-0.1 | |
| 5/20 09:40 | 7.9 | ↑0.3 | |
| 5/20 09:50 | 8.6 | ↑0.7 | |
| 5/20 10:00 | 9.6 | ↑1.0 | |
| 5/20 10:10 | 10.9 | ↑1.3 | |
| 5/20 10:20 | 12.6 | ↑1.7 | |
| 5/20 10:30 | 14.6 | ↑2.0 | |
| 5/20 10:40 | 16.9 | ↑2.3 | |
| 5/20 10:50 | 19.5 | ↑2.6 | |
| 5/20 11:00 | 22.3 | ↑2.8 | |
| 5/20 11:10 | 25.5 | ↑3.2 | |
| 5/20 11:20 | 28.9 | ↑3.4 | |
| 5/20 11:30 | 32.4 | ↑3.5 | |
| 5/20 11:40 | 36.2 | ↑3.8 | |
| 5/20 11:50 | 40.1 | ↑3.9 | |
| 5/20 12:00 | 44.1 | ↑4.0 | |
| 5/20 12:10 | 48.3 | ↑4.2 | |
| 5/20 12:20 | 52.5 | ↑4.2 | |
| 5/20 12:30 | 56.7 | ↑4.2 | |
| 5/20 12:40 | 60.9 | ↑4.2 | |
| 5/20 12:50 | 65.1 | ↑4.2 | |
| 5/20 13:00 | 69.3 | ↑4.2 | |
| 5/20 13:10 | 73.3 | ↑4.0 | |
| 5/20 13:20 | 77.3 | ↑4.0 | |
| 5/20 13:30 | 81.2 | ↑3.9 | |
| 5/20 13:40 | 85.0 | ↑3.8 | |
| 5/20 13:50 | 88.6 | ↑3.6 | |
| 5/20 14:00 | 92.0 | ↑3.4 | |
| 5/20 14:10 | 95.3 | ↑3.3 | |
| 5/20 14:20 | 98.3 | ↑3.0 | |
| 5/20 14:30 | 101.2 | ↑2.9 | |
| 5/20 14:40 | 103.9 | ↑2.7 | |
| 5/20 14:50 | 106.3 | ↑2.4 | |
| 5/20 15:00 | 108.5 | ↑2.2 | |
| 5/20 15:10 | 110.5 | ↑2.0 | |
| 5/20 15:20 | 112.2 | ↑1.7 | |
| 5/20 15:30 | 113.6 | ↑1.4 | |
| 5/20 15:40 | 114.8 | ↑1.2 | |
| 5/20 15:50 | 115.7 | ↑0.9 | |
| 5/20 16:00 | 116.3 | ↑0.6 | |
| 5/20 16:10 | 116.7 | ↑0.4 | 満潮 |
| 5/20 16:20 | 116.8 | ↑0.1 | 満潮 |
| 5/20 16:30 | 116.6 | ↓-0.2 | |
| 5/20 16:40 | 116.2 | ↓-0.4 | |
| 5/20 16:50 | 115.5 | ↓-0.7 | |
| 5/20 17:00 | 114.6 | ↓-0.9 | |
| 5/20 17:10 | 113.5 | ↓-1.1 | |
| 5/20 17:20 | 112.1 | ↓-1.4 | |
| 5/20 17:30 | 110.6 | ↓-1.5 | |
| 5/20 17:40 | 108.9 | ↓-1.7 | |
| 5/20 17:50 | 107.0 | ↓-1.9 | |
| 5/20 18:00 | 105.1 | ↓-1.9 | |
| 5/20 18:10 | 103.0 | ↓-2.1 | |
| 5/20 18:20 | 100.9 | ↓-2.1 | |
| 5/20 18:30 | 98.8 | ↓-2.1 | |
| 5/20 18:40 | 96.6 | ↓-2.2 | |
| 5/20 18:50 | 94.5 | ↓-2.1 | |
| 5/20 19:00 | 92.4 | ↓-2.1 | |
| 5/20 19:10 | 90.3 | ↓-2.1 | |
| 5/20 19:20 | 88.3 | ↓-2.0 | |
| 5/20 19:30 | 86.5 | ↓-1.8 | |
| 5/20 19:40 | 84.7 | ↓-1.8 | |
| 5/20 19:50 | 83.0 | ↓-1.7 | |
| 5/20 20:00 | 81.5 | ↓-1.5 | |
| 5/20 20:10 | 80.1 | ↓-1.4 | |
| 5/20 20:20 | 78.9 | ↓-1.2 | |
| 5/20 20:30 | 77.8 | ↓-1.1 | |
| 5/20 20:40 | 76.9 | ↓-0.9 | |
| 5/20 20:50 | 76.2 | ↓-0.7 | |
| 5/20 21:00 | 75.6 | ↓-0.6 | |
| 5/20 21:10 | 75.3 | ↓-0.3 | |
| 5/20 21:20 | 75.1 | ↓-0.2 | 干潮 |
| 5/20 21:30 | 75.1 | 0 | |
| 5/20 21:40 | 75.4 | ↑0.3 | |
| 5/20 21:50 | 75.8 | ↑0.4 | |
| 5/20 22:00 | 76.5 | ↑0.7 | |
| 5/20 22:10 | 77.3 | ↑0.8 | |
| 5/20 22:20 | 78.4 | ↑1.1 | |
| 5/20 22:30 | 79.7 | ↑1.3 | |
| 5/20 22:40 | 81.1 | ↑1.4 | |
| 5/20 22:50 | 82.8 | ↑1.7 | |
| 5/20 23:00 | 84.7 | ↑1.9 | |
| 5/20 23:10 | 86.7 | ↑2.0 | |
| 5/20 23:20 | 88.8 | ↑2.1 | |
| 5/20 23:30 | 91.1 | ↑2.3 | |
| 5/20 23:40 | 93.6 | ↑2.5 | |
| 5/20 23:50 | 96.0 | ↑2.4 |