| 満潮 | 干潮 | 満潮 | 干潮 |
|
4
(日) |
01:29 | 08:03 | 14:21 | 20:06 |
| 108cm | 31cm | 101cm | 47cm | |
|
||||
那珂湊（茨城）2031年05月4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 |
|---|---|---|---|
| 5/4 00:00 | 98.5 | ↑2.0 | |
| 5/4 00:10 | 100.3 | ↑1.8 | |
| 5/4 00:20 | 101.9 | ↑1.6 | |
| 5/4 00:30 | 103.3 | ↑1.4 | |
| 5/4 00:40 | 104.5 | ↑1.2 | |
| 5/4 00:50 | 105.5 | ↑1.0 | |
| 5/4 01:00 | 106.3 | ↑0.8 | |
| 5/4 01:10 | 106.8 | ↑0.5 | |
| 5/4 01:20 | 107.1 | ↑0.3 | 満潮 |
| 5/4 01:30 | 107.2 | ↑0.1 | |
| 5/4 01:40 | 107.1 | ↓-0.1 | |
| 5/4 01:50 | 106.7 | ↓-0.4 | |
| 5/4 02:00 | 106.1 | ↓-0.6 | |
| 5/4 02:10 | 105.2 | ↓-0.9 | |
| 5/4 02:20 | 104.1 | ↓-1.1 | |
| 5/4 02:30 | 102.8 | ↓-1.3 | |
| 5/4 02:40 | 101.3 | ↓-1.5 | |
| 5/4 02:50 | 99.5 | ↓-1.8 | |
| 5/4 03:00 | 97.6 | ↓-1.9 | |
| 5/4 03:10 | 95.5 | ↓-2.1 | |
| 5/4 03:20 | 93.2 | ↓-2.3 | |
| 5/4 03:30 | 90.8 | ↓-2.4 | |
| 5/4 03:40 | 88.2 | ↓-2.6 | |
| 5/4 03:50 | 85.5 | ↓-2.7 | |
| 5/4 04:00 | 82.7 | ↓-2.8 | |
| 5/4 04:10 | 79.8 | ↓-2.9 | |
| 5/4 04:20 | 76.9 | ↓-2.9 | |
| 5/4 04:30 | 73.8 | ↓-3.1 | 最大潮位差 |
| 5/4 04:40 | 70.8 | ↓-3.0 | |
| 5/4 04:50 | 67.7 | ↓-3.1 | 最大潮位差 |
| 5/4 05:00 | 64.6 | ↓-3.1 | 最大潮位差 |
| 5/4 05:10 | 61.5 | ↓-3.1 | 最大潮位差 |
| 5/4 05:20 | 58.5 | ↓-3.0 | |
| 5/4 05:30 | 55.6 | ↓-2.9 | |
| 5/4 05:40 | 52.7 | ↓-2.9 | |
| 5/4 05:50 | 50.0 | ↓-2.7 | |
| 5/4 06:00 | 47.3 | ↓-2.7 | |
| 5/4 06:10 | 44.8 | ↓-2.5 | |
| 5/4 06:20 | 42.4 | ↓-2.4 | |
| 5/4 06:30 | 40.2 | ↓-2.2 | |
| 5/4 06:40 | 38.2 | ↓-2.0 | |
| 5/4 06:50 | 36.4 | ↓-1.8 | |
| 5/4 07:00 | 34.8 | ↓-1.6 | |
| 5/4 07:10 | 33.4 | ↓-1.4 | |
| 5/4 07:20 | 32.3 | ↓-1.1 | |
| 5/4 07:30 | 31.4 | ↓-0.9 | |
| 5/4 07:40 | 30.7 | ↓-0.7 | |
| 5/4 07:50 | 30.3 | ↓-0.4 | |
| 5/4 08:00 | 30.1 | ↓-0.2 | 干潮 |
| 5/4 08:10 | 30.2 | ↑0.1 | |
| 5/4 08:20 | 30.5 | ↑0.3 | |
| 5/4 08:30 | 31.1 | ↑0.6 | |
| 5/4 08:40 | 31.9 | ↑0.8 | |
| 5/4 08:50 | 32.9 | ↑1.0 | |
| 5/4 09:00 | 34.2 | ↑1.3 | |
| 5/4 09:10 | 35.7 | ↑1.5 | |
| 5/4 09:20 | 37.4 | ↑1.7 | |
| 5/4 09:30 | 39.3 | ↑1.9 | |
| 5/4 09:40 | 41.4 | ↑2.1 | |
| 5/4 09:50 | 43.7 | ↑2.3 | |
| 5/4 10:00 | 46.1 | ↑2.4 | |
| 5/4 10:10 | 48.6 | ↑2.5 | |
| 5/4 10:20 | 51.2 | ↑2.6 | |
| 5/4 10:30 | 54.0 | ↑2.8 | |
| 5/4 10:40 | 56.8 | ↑2.8 | |
| 5/4 10:50 | 59.7 | ↑2.9 | |
| 5/4 11:00 | 62.6 | ↑2.9 | |
| 5/4 11:10 | 65.5 | ↑2.9 | |
| 5/4 11:20 | 68.4 | ↑2.9 | |
| 5/4 11:30 | 71.3 | ↑2.9 | |
| 5/4 11:40 | 74.1 | ↑2.8 | |
| 5/4 11:50 | 76.9 | ↑2.8 | |
| 5/4 12:00 | 79.6 | ↑2.7 | |
| 5/4 12:10 | 82.2 | ↑2.6 | |
| 5/4 12:20 | 84.6 | ↑2.4 | |
| 5/4 12:30 | 86.9 | ↑2.3 | |
| 5/4 12:40 | 89.1 | ↑2.2 | |
| 5/4 12:50 | 91.1 | ↑2.0 | |
| 5/4 13:00 | 93.0 | ↑1.9 | |
| 5/4 13:10 | 94.6 | ↑1.6 | |
| 5/4 13:20 | 96.0 | ↑1.4 | |
| 5/4 13:30 | 97.3 | ↑1.3 | |
| 5/4 13:40 | 98.3 | ↑1.0 | |
| 5/4 13:50 | 99.1 | ↑0.8 | |
| 5/4 14:00 | 99.6 | ↑0.5 | |
| 5/4 14:10 | 100.0 | ↑0.4 | |
| 5/4 14:20 | 100.1 | ↑0.1 | 満潮 |
| 5/4 14:30 | 100.0 | ↓-0.1 | |
| 5/4 14:40 | 99.6 | ↓-0.4 | |
| 5/4 14:50 | 99.1 | ↓-0.5 | |
| 5/4 15:00 | 98.3 | ↓-0.8 | |
| 5/4 15:10 | 97.3 | ↓-1.0 | |
| 5/4 15:20 | 96.1 | ↓-1.2 | |
| 5/4 15:30 | 94.8 | ↓-1.3 | |
| 5/4 15:40 | 93.2 | ↓-1.6 | |
| 5/4 15:50 | 91.5 | ↓-1.7 | |
| 5/4 16:00 | 89.7 | ↓-1.8 | |
| 5/4 16:10 | 87.7 | ↓-2.0 | |
| 5/4 16:20 | 85.6 | ↓-2.1 | |
| 5/4 16:30 | 83.3 | ↓-2.3 | |
| 5/4 16:40 | 81.0 | ↓-2.3 | |
| 5/4 16:50 | 78.7 | ↓-2.3 | |
| 5/4 17:00 | 76.3 | ↓-2.4 | |
| 5/4 17:10 | 73.8 | ↓-2.5 | |
| 5/4 17:20 | 71.4 | ↓-2.4 | |
| 5/4 17:30 | 68.9 | ↓-2.5 | |
| 5/4 17:40 | 66.5 | ↓-2.4 | |
| 5/4 17:50 | 64.2 | ↓-2.3 | |
| 5/4 18:00 | 61.9 | ↓-2.3 | |
| 5/4 18:10 | 59.7 | ↓-2.2 | |
| 5/4 18:20 | 57.6 | ↓-2.1 | |
| 5/4 18:30 | 55.7 | ↓-1.9 | |
| 5/4 18:40 | 53.9 | ↓-1.8 | |
| 5/4 18:50 | 52.2 | ↓-1.7 | |
| 5/4 19:00 | 50.7 | ↓-1.5 | |
| 5/4 19:10 | 49.5 | ↓-1.2 | |
| 5/4 19:20 | 48.4 | ↓-1.1 | |
| 5/4 19:30 | 47.5 | ↓-0.9 | |
| 5/4 19:40 | 46.8 | ↓-0.7 | |
| 5/4 19:50 | 46.3 | ↓-0.5 | |
| 5/4 20:00 | 46.1 | ↓-0.2 | 干潮 |
| 5/4 20:10 | 46.1 | 0 | |
| 5/4 20:20 | 46.4 | ↑0.3 | |
| 5/4 20:30 | 46.8 | ↑0.4 | |
| 5/4 20:40 | 47.6 | ↑0.8 | |
| 5/4 20:50 | 48.5 | ↑0.9 | |
| 5/4 21:00 | 49.6 | ↑1.1 | |
| 5/4 21:10 | 51.0 | ↑1.4 | |
| 5/4 21:20 | 52.6 | ↑1.6 | |
| 5/4 21:30 | 54.4 | ↑1.8 | |
| 5/4 21:40 | 56.3 | ↑1.9 | |
| 5/4 21:50 | 58.4 | ↑2.1 | |
| 5/4 22:00 | 60.7 | ↑2.3 | |
| 5/4 22:10 | 63.1 | ↑2.4 | |
| 5/4 22:20 | 65.6 | ↑2.5 | |
| 5/4 22:30 | 68.2 | ↑2.6 | |
| 5/4 22:40 | 70.9 | ↑2.7 | |
| 5/4 22:50 | 73.7 | ↑2.8 | |
| 5/4 23:00 | 76.5 | ↑2.8 | |
| 5/4 23:10 | 79.3 | ↑2.8 | |
| 5/4 23:20 | 82.1 | ↑2.8 | |
| 5/4 23:30 | 84.8 | ↑2.7 | |
| 5/4 23:40 | 87.6 | ↑2.8 | |
| 5/4 23:50 | 90.2 | ↑2.6 |