| 満潮 | 干潮 | 満潮 | 干潮 |
|
20
(火) |
02:22 | 09:22 | 16:19 | 21:25 |
| 119cm | 4cm | 112cm | 68cm | |
|
||||
那珂湊（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 | 96.7 | ↑2.5 | |
| 5/20 00:10 | 99.1 | ↑2.4 | |
| 5/20 00:20 | 101.5 | ↑2.4 | |
| 5/20 00:30 | 103.8 | ↑2.3 | |
| 5/20 00:40 | 106.0 | ↑2.2 | |
| 5/20 00:50 | 108.1 | ↑2.1 | |
| 5/20 01:00 | 110.0 | ↑1.9 | |
| 5/20 01:10 | 111.7 | ↑1.7 | |
| 5/20 01:20 | 113.3 | ↑1.6 | |
| 5/20 01:30 | 114.7 | ↑1.4 | |
| 5/20 01:40 | 115.8 | ↑1.1 | |
| 5/20 01:50 | 116.7 | ↑0.9 | |
| 5/20 02:00 | 117.4 | ↑0.7 | |
| 5/20 02:10 | 117.9 | ↑0.5 | |
| 5/20 02:20 | 118.0 | ↑0.1 | 満潮 |
| 5/20 02:30 | 117.9 | ↓-0.1 | |
| 5/20 02:40 | 117.5 | ↓-0.4 | |
| 5/20 02:50 | 116.9 | ↓-0.6 | |
| 5/20 03:00 | 115.9 | ↓-1.0 | |
| 5/20 03:10 | 114.7 | ↓-1.2 | |
| 5/20 03:20 | 113.2 | ↓-1.5 | |
| 5/20 03:30 | 111.4 | ↓-1.8 | |
| 5/20 03:40 | 109.4 | ↓-2.0 | |
| 5/20 03:50 | 107.1 | ↓-2.3 | |
| 5/20 04:00 | 104.5 | ↓-2.6 | |
| 5/20 04:10 | 101.7 | ↓-2.8 | |
| 5/20 04:20 | 98.6 | ↓-3.1 | |
| 5/20 04:30 | 95.4 | ↓-3.2 | |
| 5/20 04:40 | 91.9 | ↓-3.5 | |
| 5/20 04:50 | 88.2 | ↓-3.7 | |
| 5/20 05:00 | 84.4 | ↓-3.8 | |
| 5/20 05:10 | 80.4 | ↓-4.0 | |
| 5/20 05:20 | 76.3 | ↓-4.1 | |
| 5/20 05:30 | 72.2 | ↓-4.1 | |
| 5/20 05:40 | 67.9 | ↓-4.3 | |
| 5/20 05:50 | 63.6 | ↓-4.3 | |
| 5/20 06:00 | 59.2 | ↓-4.4 | 最大潮位差 |
| 5/20 06:10 | 54.9 | ↓-4.3 | |
| 5/20 06:20 | 50.6 | ↓-4.3 | |
| 5/20 06:30 | 46.3 | ↓-4.3 | |
| 5/20 06:40 | 42.2 | ↓-4.1 | |
| 5/20 06:50 | 38.1 | ↓-4.1 | |
| 5/20 07:00 | 34.1 | ↓-4.0 | |
| 5/20 07:10 | 30.3 | ↓-3.8 | |
| 5/20 07:20 | 26.7 | ↓-3.6 | |
| 5/20 07:30 | 23.3 | ↓-3.4 | |
| 5/20 07:40 | 20.1 | ↓-3.2 | |
| 5/20 07:50 | 17.2 | ↓-2.9 | |
| 5/20 08:00 | 14.5 | ↓-2.7 | |
| 5/20 08:10 | 12.0 | ↓-2.5 | |
| 5/20 08:20 | 9.9 | ↓-2.1 | |
| 5/20 08:30 | 8.1 | ↓-1.8 | |
| 5/20 08:40 | 6.5 | ↓-1.6 | |
| 5/20 08:50 | 5.3 | ↓-1.2 | |
| 5/20 09:00 | 4.4 | ↓-0.9 | |
| 5/20 09:10 | 3.9 | ↓-0.5 | |
| 5/20 09:20 | 3.7 | ↓-0.2 | 干潮 |
| 5/20 09:30 | 3.8 | ↑0.1 | |
| 5/20 09:40 | 4.2 | ↑0.4 | |
| 5/20 09:50 | 5.0 | ↑0.8 | |
| 5/20 10:00 | 6.1 | ↑1.1 | |
| 5/20 10:10 | 7.5 | ↑1.4 | |
| 5/20 10:20 | 9.2 | ↑1.7 | |
| 5/20 10:30 | 11.2 | ↑2.0 | |
| 5/20 10:40 | 13.5 | ↑2.3 | |
| 5/20 10:50 | 16.1 | ↑2.6 | |
| 5/20 11:00 | 18.8 | ↑2.7 | |
| 5/20 11:10 | 21.9 | ↑3.1 | |
| 5/20 11:20 | 25.1 | ↑3.2 | |
| 5/20 11:30 | 28.5 | ↑3.4 | |
| 5/20 11:40 | 32.0 | ↑3.5 | |
| 5/20 11:50 | 35.8 | ↑3.8 | |
| 5/20 12:00 | 39.6 | ↑3.8 | |
| 5/20 12:10 | 43.5 | ↑3.9 | |
| 5/20 12:20 | 47.5 | ↑4.0 | |
| 5/20 12:30 | 51.6 | ↑4.1 | |
| 5/20 12:40 | 55.7 | ↑4.1 | |
| 5/20 12:50 | 59.7 | ↑4.0 | |
| 5/20 13:00 | 63.8 | ↑4.1 | |
| 5/20 13:10 | 67.8 | ↑4.0 | |
| 5/20 13:20 | 71.7 | ↑3.9 | |
| 5/20 13:30 | 75.6 | ↑3.9 | |
| 5/20 13:40 | 79.3 | ↑3.7 | |
| 5/20 13:50 | 82.9 | ↑3.6 | |
| 5/20 14:00 | 86.4 | ↑3.5 | |
| 5/20 14:10 | 89.7 | ↑3.3 | |
| 5/20 14:20 | 92.8 | ↑3.1 | |
| 5/20 14:30 | 95.7 | ↑2.9 | |
| 5/20 14:40 | 98.4 | ↑2.7 | |
| 5/20 14:50 | 100.8 | ↑2.4 | |
| 5/20 15:00 | 103.0 | ↑2.2 | |
| 5/20 15:10 | 104.9 | ↑1.9 | |
| 5/20 15:20 | 106.6 | ↑1.7 | |
| 5/20 15:30 | 108.1 | ↑1.5 | |
| 5/20 15:40 | 109.2 | ↑1.1 | |
| 5/20 15:50 | 110.1 | ↑0.9 | |
| 5/20 16:00 | 110.7 | ↑0.6 | |
| 5/20 16:10 | 111.1 | ↑0.4 | 満潮 |
| 5/20 16:20 | 111.2 | ↑0.1 | |
| 5/20 16:30 | 111.0 | ↓-0.2 | |
| 5/20 16:40 | 110.6 | ↓-0.4 | |
| 5/20 16:50 | 109.9 | ↓-0.7 | |
| 5/20 17:00 | 109.1 | ↓-0.8 | |
| 5/20 17:10 | 108.0 | ↓-1.1 | |
| 5/20 17:20 | 106.7 | ↓-1.3 | |
| 5/20 17:30 | 105.2 | ↓-1.5 | |
| 5/20 17:40 | 103.5 | ↓-1.7 | |
| 5/20 17:50 | 101.7 | ↓-1.8 | |
| 5/20 18:00 | 99.8 | ↓-1.9 | |
| 5/20 18:10 | 97.8 | ↓-2.0 | |
| 5/20 18:20 | 95.7 | ↓-2.1 | |
| 5/20 18:30 | 93.5 | ↓-2.2 | |
| 5/20 18:40 | 91.3 | ↓-2.2 | |
| 5/20 18:50 | 89.1 | ↓-2.2 | |
| 5/20 19:00 | 86.9 | ↓-2.2 | |
| 5/20 19:10 | 84.7 | ↓-2.2 | |
| 5/20 19:20 | 82.6 | ↓-2.1 | |
| 5/20 19:30 | 80.5 | ↓-2.1 | |
| 5/20 19:40 | 78.6 | ↓-1.9 | |
| 5/20 19:50 | 76.7 | ↓-1.9 | |
| 5/20 20:00 | 75.0 | ↓-1.7 | |
| 5/20 20:10 | 73.4 | ↓-1.6 | |
| 5/20 20:20 | 72.0 | ↓-1.4 | |
| 5/20 20:30 | 70.8 | ↓-1.2 | |
| 5/20 20:40 | 69.8 | ↓-1.0 | |
| 5/20 20:50 | 68.9 | ↓-0.9 | |
| 5/20 21:00 | 68.3 | ↓-0.6 | |
| 5/20 21:10 | 67.9 | ↓-0.4 | |
| 5/20 21:20 | 67.6 | ↓-0.3 | 干潮 |
| 5/20 21:30 | 67.7 | ↑0.1 | |
| 5/20 21:40 | 67.9 | ↑0.2 | |
| 5/20 21:50 | 68.3 | ↑0.4 | |
| 5/20 22:00 | 69.0 | ↑0.7 | |
| 5/20 22:10 | 69.9 | ↑0.9 | |
| 5/20 22:20 | 71.0 | ↑1.1 | |
| 5/20 22:30 | 72.3 | ↑1.3 | |
| 5/20 22:40 | 73.7 | ↑1.4 | |
| 5/20 22:50 | 75.4 | ↑1.7 | |
| 5/20 23:00 | 77.2 | ↑1.8 | |
| 5/20 23:10 | 79.1 | ↑1.9 | |
| 5/20 23:20 | 81.2 | ↑2.1 | |
| 5/20 23:30 | 83.3 | ↑2.1 | |
| 5/20 23:40 | 85.6 | ↑2.3 | |
| 5/20 23:50 | 87.9 | ↑2.3 |