| 満潮 | 干潮 | 満潮 | 干潮 |
|
18
(日) |
01:08 | 08:00 | 14:35 | 19:59 |
| 111cm | 24cm | 102cm | 59cm | |
|
||||
那珂湊（茨城）2031年05月18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 |
|---|---|---|---|
| 5/18 00:00 | 105.7 | ↑1.5 | |
| 5/18 00:10 | 107.0 | ↑1.3 | |
| 5/18 00:20 | 108.2 | ↑1.2 | |
| 5/18 00:30 | 109.1 | ↑0.9 | |
| 5/18 00:40 | 109.9 | ↑0.8 | |
| 5/18 00:50 | 110.4 | ↑0.5 | |
| 5/18 01:00 | 110.7 | ↑0.3 | 満潮 |
| 5/18 01:10 | 110.7 | 0 | |
| 5/18 01:20 | 110.6 | ↓-0.1 | |
| 5/18 01:30 | 110.2 | ↓-0.4 | |
| 5/18 01:40 | 109.5 | ↓-0.7 | |
| 5/18 01:50 | 108.6 | ↓-0.9 | |
| 5/18 02:00 | 107.5 | ↓-1.1 | |
| 5/18 02:10 | 106.2 | ↓-1.3 | |
| 5/18 02:20 | 104.6 | ↓-1.6 | |
| 5/18 02:30 | 102.8 | ↓-1.8 | |
| 5/18 02:40 | 100.9 | ↓-1.9 | |
| 5/18 02:50 | 98.7 | ↓-2.2 | |
| 5/18 03:00 | 96.4 | ↓-2.3 | |
| 5/18 03:10 | 93.8 | ↓-2.6 | |
| 5/18 03:20 | 91.2 | ↓-2.6 | |
| 5/18 03:30 | 88.4 | ↓-2.8 | |
| 5/18 03:40 | 85.4 | ↓-3.0 | |
| 5/18 03:50 | 82.4 | ↓-3.0 | |
| 5/18 04:00 | 79.2 | ↓-3.2 | |
| 5/18 04:10 | 76.0 | ↓-3.2 | |
| 5/18 04:20 | 72.8 | ↓-3.2 | |
| 5/18 04:30 | 69.4 | ↓-3.4 | 最大潮位差 |
| 5/18 04:40 | 66.1 | ↓-3.3 | |
| 5/18 04:50 | 62.8 | ↓-3.3 | |
| 5/18 05:00 | 59.5 | ↓-3.3 | |
| 5/18 05:10 | 56.2 | ↓-3.3 | |
| 5/18 05:20 | 53.0 | ↓-3.2 | |
| 5/18 05:30 | 49.9 | ↓-3.1 | |
| 5/18 05:40 | 46.9 | ↓-3.0 | |
| 5/18 05:50 | 44.0 | ↓-2.9 | |
| 5/18 06:00 | 41.2 | ↓-2.8 | |
| 5/18 06:10 | 38.6 | ↓-2.6 | |
| 5/18 06:20 | 36.2 | ↓-2.4 | |
| 5/18 06:30 | 33.9 | ↓-2.3 | |
| 5/18 06:40 | 31.8 | ↓-2.1 | |
| 5/18 06:50 | 30.0 | ↓-1.8 | |
| 5/18 07:00 | 28.4 | ↓-1.6 | |
| 5/18 07:10 | 27.0 | ↓-1.4 | |
| 5/18 07:20 | 25.8 | ↓-1.2 | |
| 5/18 07:30 | 24.9 | ↓-0.9 | |
| 5/18 07:40 | 24.3 | ↓-0.6 | |
| 5/18 07:50 | 23.9 | ↓-0.4 | 干潮 |
| 5/18 08:00 | 23.8 | ↓-0.1 | 干潮 |
| 5/18 08:10 | 24.0 | ↑0.2 | |
| 5/18 08:20 | 24.4 | ↑0.4 | |
| 5/18 08:30 | 25.0 | ↑0.6 | |
| 5/18 08:40 | 26.0 | ↑1.0 | |
| 5/18 08:50 | 27.1 | ↑1.1 | |
| 5/18 09:00 | 28.5 | ↑1.4 | |
| 5/18 09:10 | 30.2 | ↑1.7 | |
| 5/18 09:20 | 32.0 | ↑1.8 | |
| 5/18 09:30 | 34.1 | ↑2.1 | |
| 5/18 09:40 | 36.4 | ↑2.3 | |
| 5/18 09:50 | 38.8 | ↑2.4 | |
| 5/18 10:00 | 41.4 | ↑2.6 | |
| 5/18 10:10 | 44.1 | ↑2.7 | |
| 5/18 10:20 | 46.9 | ↑2.8 | |
| 5/18 10:30 | 49.9 | ↑3.0 | |
| 5/18 10:40 | 52.9 | ↑3.0 | |
| 5/18 10:50 | 55.9 | ↑3.0 | |
| 5/18 11:00 | 59.0 | ↑3.1 | |
| 5/18 11:10 | 62.2 | ↑3.2 | |
| 5/18 11:20 | 65.3 | ↑3.1 | |
| 5/18 11:30 | 68.4 | ↑3.1 | |
| 5/18 11:40 | 71.4 | ↑3.0 | |
| 5/18 11:50 | 74.4 | ↑3.0 | |
| 5/18 12:00 | 77.3 | ↑2.9 | |
| 5/18 12:10 | 80.1 | ↑2.8 | |
| 5/18 12:20 | 82.8 | ↑2.7 | |
| 5/18 12:30 | 85.4 | ↑2.6 | |
| 5/18 12:40 | 87.8 | ↑2.4 | |
| 5/18 12:50 | 90.0 | ↑2.2 | |
| 5/18 13:00 | 92.1 | ↑2.1 | |
| 5/18 13:10 | 94.0 | ↑1.9 | |
| 5/18 13:20 | 95.7 | ↑1.7 | |
| 5/18 13:30 | 97.2 | ↑1.5 | |
| 5/18 13:40 | 98.4 | ↑1.2 | |
| 5/18 13:50 | 99.5 | ↑1.1 | |
| 5/18 14:00 | 100.3 | ↑0.8 | |
| 5/18 14:10 | 101.0 | ↑0.7 | |
| 5/18 14:20 | 101.4 | ↑0.4 | |
| 5/18 14:30 | 101.6 | ↑0.2 | 満潮 |
| 5/18 14:40 | 101.5 | ↓-0.1 | |
| 5/18 14:50 | 101.3 | ↓-0.2 | |
| 5/18 15:00 | 100.9 | ↓-0.4 | |
| 5/18 15:10 | 100.2 | ↓-0.7 | |
| 5/18 15:20 | 99.4 | ↓-0.8 | |
| 5/18 15:30 | 98.4 | ↓-1.0 | |
| 5/18 15:40 | 97.2 | ↓-1.2 | |
| 5/18 15:50 | 95.8 | ↓-1.4 | |
| 5/18 16:00 | 94.4 | ↓-1.4 | |
| 5/18 16:10 | 92.7 | ↓-1.7 | |
| 5/18 16:20 | 91.0 | ↓-1.7 | |
| 5/18 16:30 | 89.2 | ↓-1.8 | |
| 5/18 16:40 | 87.3 | ↓-1.9 | |
| 5/18 16:50 | 85.3 | ↓-2.0 | |
| 5/18 17:00 | 83.3 | ↓-2.0 | |
| 5/18 17:10 | 81.2 | ↓-2.1 | |
| 5/18 17:20 | 79.2 | ↓-2.0 | |
| 5/18 17:30 | 77.1 | ↓-2.1 | |
| 5/18 17:40 | 75.1 | ↓-2.0 | |
| 5/18 17:50 | 73.1 | ↓-2.0 | |
| 5/18 18:00 | 71.2 | ↓-1.9 | |
| 5/18 18:10 | 69.4 | ↓-1.8 | |
| 5/18 18:20 | 67.6 | ↓-1.8 | |
| 5/18 18:30 | 66.0 | ↓-1.6 | |
| 5/18 18:40 | 64.5 | ↓-1.5 | |
| 5/18 18:50 | 63.1 | ↓-1.4 | |
| 5/18 19:00 | 61.9 | ↓-1.2 | |
| 5/18 19:10 | 60.9 | ↓-1.0 | |
| 5/18 19:20 | 60.1 | ↓-0.8 | |
| 5/18 19:30 | 59.4 | ↓-0.7 | |
| 5/18 19:40 | 58.9 | ↓-0.5 | |
| 5/18 19:50 | 58.7 | ↓-0.2 | 干潮 |
| 5/18 20:00 | 58.6 | ↓-0.1 | |
| 5/18 20:10 | 58.8 | ↑0.2 | |
| 5/18 20:20 | 59.1 | ↑0.3 | |
| 5/18 20:30 | 59.7 | ↑0.6 | |
| 5/18 20:40 | 60.5 | ↑0.8 | |
| 5/18 20:50 | 61.5 | ↑1.0 | |
| 5/18 21:00 | 62.7 | ↑1.2 | |
| 5/18 21:10 | 64.1 | ↑1.4 | |
| 5/18 21:20 | 65.6 | ↑1.5 | |
| 5/18 21:30 | 67.4 | ↑1.8 | |
| 5/18 21:40 | 69.2 | ↑1.8 | |
| 5/18 21:50 | 71.3 | ↑2.1 | |
| 5/18 22:00 | 73.4 | ↑2.1 | |
| 5/18 22:10 | 75.7 | ↑2.3 | |
| 5/18 22:20 | 78.0 | ↑2.3 | |
| 5/18 22:30 | 80.5 | ↑2.5 | |
| 5/18 22:40 | 82.9 | ↑2.4 | |
| 5/18 22:50 | 85.5 | ↑2.6 | |
| 5/18 23:00 | 88.0 | ↑2.5 | |
| 5/18 23:10 | 90.5 | ↑2.5 | |
| 5/18 23:20 | 93.0 | ↑2.5 | |
| 5/18 23:30 | 95.5 | ↑2.5 | |
| 5/18 23:40 | 97.9 | ↑2.4 | |
| 5/18 23:50 | 100.2 | ↑2.3 |