| 満潮 | 干潮 | 満潮 | 干潮 |
|
20
(月) |
04:31 | 11:52 | 19:20 | - |
| 121cm | -10cm | 115cm | - | |
|
||||
那珂湊（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 | 82.4 | ↑0.7 | |
| 5/20 00:10 | 83.3 | ↑0.9 | |
| 5/20 00:20 | 84.4 | ↑1.1 | |
| 5/20 00:30 | 85.6 | ↑1.2 | |
| 5/20 00:40 | 87.0 | ↑1.4 | |
| 5/20 00:50 | 88.4 | ↑1.4 | |
| 5/20 01:00 | 90.1 | ↑1.7 | |
| 5/20 01:10 | 91.8 | ↑1.7 | |
| 5/20 01:20 | 93.6 | ↑1.8 | |
| 5/20 01:30 | 95.4 | ↑1.8 | |
| 5/20 01:40 | 97.4 | ↑2.0 | |
| 5/20 01:50 | 99.3 | ↑1.9 | |
| 5/20 02:00 | 101.3 | ↑2.0 | |
| 5/20 02:10 | 103.3 | ↑2.0 | |
| 5/20 02:20 | 105.2 | ↑1.9 | |
| 5/20 02:30 | 107.1 | ↑1.9 | |
| 5/20 02:40 | 109.0 | ↑1.9 | |
| 5/20 02:50 | 110.8 | ↑1.8 | |
| 5/20 03:00 | 112.5 | ↑1.7 | |
| 5/20 03:10 | 114.1 | ↑1.6 | |
| 5/20 03:20 | 115.6 | ↑1.5 | |
| 5/20 03:30 | 116.9 | ↑1.3 | |
| 5/20 03:40 | 118.1 | ↑1.2 | |
| 5/20 03:50 | 119.0 | ↑0.9 | |
| 5/20 04:00 | 119.8 | ↑0.8 | |
| 5/20 04:10 | 120.4 | ↑0.6 | |
| 5/20 04:20 | 120.8 | ↑0.4 | |
| 5/20 04:30 | 120.9 | ↑0.1 | 満潮 |
| 5/20 04:40 | 120.8 | ↓-0.1 | |
| 5/20 04:50 | 120.4 | ↓-0.4 | |
| 5/20 05:00 | 119.8 | ↓-0.6 | |
| 5/20 05:10 | 118.9 | ↓-0.9 | |
| 5/20 05:20 | 117.7 | ↓-1.2 | |
| 5/20 05:30 | 116.3 | ↓-1.4 | |
| 5/20 05:40 | 114.5 | ↓-1.8 | |
| 5/20 05:50 | 112.5 | ↓-2.0 | |
| 5/20 06:00 | 110.2 | ↓-2.3 | |
| 5/20 06:10 | 107.6 | ↓-2.6 | |
| 5/20 06:20 | 104.7 | ↓-2.9 | |
| 5/20 06:30 | 101.6 | ↓-3.1 | |
| 5/20 06:40 | 98.2 | ↓-3.4 | |
| 5/20 06:50 | 94.6 | ↓-3.6 | |
| 5/20 07:00 | 90.7 | ↓-3.9 | |
| 5/20 07:10 | 86.7 | ↓-4.0 | |
| 5/20 07:20 | 82.5 | ↓-4.2 | |
| 5/20 07:30 | 78.1 | ↓-4.4 | |
| 5/20 07:40 | 73.5 | ↓-4.6 | |
| 5/20 07:50 | 68.9 | ↓-4.6 | |
| 5/20 08:00 | 64.1 | ↓-4.8 | |
| 5/20 08:10 | 59.3 | ↓-4.8 | |
| 5/20 08:20 | 54.5 | ↓-4.8 | |
| 5/20 08:30 | 49.6 | ↓-4.9 | 最大潮位差 |
| 5/20 08:40 | 44.8 | ↓-4.8 | |
| 5/20 08:50 | 40.0 | ↓-4.8 | |
| 5/20 09:00 | 35.3 | ↓-4.7 | |
| 5/20 09:10 | 30.7 | ↓-4.6 | |
| 5/20 09:20 | 26.2 | ↓-4.5 | |
| 5/20 09:30 | 21.9 | ↓-4.3 | |
| 5/20 09:40 | 17.7 | ↓-4.2 | |
| 5/20 09:50 | 13.8 | ↓-3.9 | |
| 5/20 10:00 | 10.1 | ↓-3.7 | |
| 5/20 10:10 | 6.7 | ↓-3.4 | |
| 5/20 10:20 | 3.5 | ↓-3.2 | |
| 5/20 10:30 | 0.6 | ↓-2.9 | |
| 5/20 10:40 | -1.9 | ↓-2.5 | |
| 5/20 10:50 | -4.2 | ↓-2.3 | |
| 5/20 11:00 | -6.1 | ↓-1.9 | |
| 5/20 11:10 | -7.7 | ↓-1.6 | |
| 5/20 11:20 | -9.0 | ↓-1.3 | |
| 5/20 11:30 | -9.9 | ↓-0.9 | |
| 5/20 11:40 | -10.4 | ↓-0.5 | |
| 5/20 11:50 | -10.6 | ↓-0.2 | 干潮 |
| 5/20 12:00 | -10.5 | ↑0.1 | |
| 5/20 12:10 | -10.0 | ↑0.5 | |
| 5/20 12:20 | -9.1 | ↑0.9 | |
| 5/20 12:30 | -8.0 | ↑1.1 | |
| 5/20 12:40 | -6.5 | ↑1.5 | |
| 5/20 12:50 | -4.7 | ↑1.8 | |
| 5/20 13:00 | -2.6 | ↑2.1 | |
| 5/20 13:10 | -0.3 | ↑2.3 | |
| 5/20 13:20 | 2.4 | ↑2.7 | |
| 5/20 13:30 | 5.2 | ↑2.8 | |
| 5/20 13:40 | 8.4 | ↑3.2 | |
| 5/20 13:50 | 11.7 | ↑3.3 | |
| 5/20 14:00 | 15.2 | ↑3.5 | |
| 5/20 14:10 | 19.0 | ↑3.8 | |
| 5/20 14:20 | 22.8 | ↑3.8 | |
| 5/20 14:30 | 26.9 | ↑4.1 | |
| 5/20 14:40 | 31.0 | ↑4.1 | |
| 5/20 14:50 | 35.3 | ↑4.3 | |
| 5/20 15:00 | 39.6 | ↑4.3 | |
| 5/20 15:10 | 43.9 | ↑4.3 | |
| 5/20 15:20 | 48.4 | ↑4.5 | |
| 5/20 15:30 | 52.8 | ↑4.4 | |
| 5/20 15:40 | 57.2 | ↑4.4 | |
| 5/20 15:50 | 61.6 | ↑4.4 | |
| 5/20 16:00 | 65.9 | ↑4.3 | |
| 5/20 16:10 | 70.1 | ↑4.2 | |
| 5/20 16:20 | 74.3 | ↑4.2 | |
| 5/20 16:30 | 78.3 | ↑4.0 | |
| 5/20 16:40 | 82.2 | ↑3.9 | |
| 5/20 16:50 | 85.9 | ↑3.7 | |
| 5/20 17:00 | 89.5 | ↑3.6 | |
| 5/20 17:10 | 92.9 | ↑3.4 | |
| 5/20 17:20 | 96.0 | ↑3.1 | |
| 5/20 17:30 | 99.0 | ↑3.0 | |
| 5/20 17:40 | 101.7 | ↑2.7 | |
| 5/20 17:50 | 104.2 | ↑2.5 | |
| 5/20 18:00 | 106.4 | ↑2.2 | |
| 5/20 18:10 | 108.3 | ↑1.9 | |
| 5/20 18:20 | 110.0 | ↑1.7 | |
| 5/20 18:30 | 111.4 | ↑1.4 | |
| 5/20 18:40 | 112.6 | ↑1.2 | |
| 5/20 18:50 | 113.4 | ↑0.8 | |
| 5/20 19:00 | 114.0 | ↑0.6 | |
| 5/20 19:10 | 114.4 | ↑0.4 | 満潮 |
| 5/20 19:20 | 114.5 | ↑0.1 | 満潮 |
| 5/20 19:30 | 114.3 | ↓-0.2 | |
| 5/20 19:40 | 113.9 | ↓-0.4 | |
| 5/20 19:50 | 113.3 | ↓-0.6 | |
| 5/20 20:00 | 112.5 | ↓-0.8 | |
| 5/20 20:10 | 111.5 | ↓-1.0 | |
| 5/20 20:20 | 110.3 | ↓-1.2 | |
| 5/20 20:30 | 109.0 | ↓-1.3 | |
| 5/20 20:40 | 107.6 | ↓-1.4 | |
| 5/20 20:50 | 106.0 | ↓-1.6 | |
| 5/20 21:00 | 104.4 | ↓-1.6 | |
| 5/20 21:10 | 102.7 | ↓-1.7 | |
| 5/20 21:20 | 101.0 | ↓-1.7 | |
| 5/20 21:30 | 99.2 | ↓-1.8 | |
| 5/20 21:40 | 97.5 | ↓-1.7 | |
| 5/20 21:50 | 95.8 | ↓-1.7 | |
| 5/20 22:00 | 94.1 | ↓-1.7 | |
| 5/20 22:10 | 92.5 | ↓-1.6 | |
| 5/20 22:20 | 91.0 | ↓-1.5 | |
| 5/20 22:30 | 89.5 | ↓-1.5 | |
| 5/20 22:40 | 88.2 | ↓-1.3 | |
| 5/20 22:50 | 87.0 | ↓-1.2 | |
| 5/20 23:00 | 86.0 | ↓-1.0 | |
| 5/20 23:10 | 85.1 | ↓-0.9 | |
| 5/20 23:20 | 84.4 | ↓-0.7 | |
| 5/20 23:30 | 83.8 | ↓-0.6 | |
| 5/20 23:40 | 83.4 | ↓-0.4 | |
| 5/20 23:50 | 83.1 | ↓-0.3 |