| 満潮 | 干潮 | 満潮 | 干潮 |
|
21
(月) |
00:09 | 06:35 | 11:12 | 17:46 |
| 107cm | 68cm | 86cm | 39cm | |
|
||||
那珂湊（茨城）2040年05月21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 |
|---|---|---|---|
| 5/21 00:00 | 106.2 | ↑0.2 | 満潮 |
| 5/21 00:10 | 106.2 | 0 | |
| 5/21 00:20 | 106.1 | ↓-0.1 | |
| 5/21 00:30 | 105.8 | ↓-0.3 | |
| 5/21 00:40 | 105.4 | ↓-0.4 | |
| 5/21 00:50 | 104.9 | ↓-0.5 | |
| 5/21 01:00 | 104.2 | ↓-0.7 | |
| 5/21 01:10 | 103.3 | ↓-0.9 | |
| 5/21 01:20 | 102.4 | ↓-0.9 | |
| 5/21 01:30 | 101.4 | ↓-1.0 | |
| 5/21 01:40 | 100.2 | ↓-1.2 | |
| 5/21 01:50 | 99.0 | ↓-1.2 | |
| 5/21 02:00 | 97.7 | ↓-1.3 | |
| 5/21 02:10 | 96.4 | ↓-1.3 | |
| 5/21 02:20 | 95.0 | ↓-1.4 | |
| 5/21 02:30 | 93.5 | ↓-1.5 | |
| 5/21 02:40 | 92.0 | ↓-1.5 | |
| 5/21 02:50 | 90.5 | ↓-1.5 | |
| 5/21 03:00 | 88.9 | ↓-1.6 | |
| 5/21 03:10 | 87.4 | ↓-1.5 | |
| 5/21 03:20 | 85.9 | ↓-1.5 | |
| 5/21 03:30 | 84.3 | ↓-1.6 | |
| 5/21 03:40 | 82.8 | ↓-1.5 | |
| 5/21 03:50 | 81.4 | ↓-1.4 | |
| 5/21 04:00 | 80.0 | ↓-1.4 | |
| 5/21 04:10 | 78.6 | ↓-1.4 | |
| 5/21 04:20 | 77.3 | ↓-1.3 | |
| 5/21 04:30 | 76.0 | ↓-1.3 | |
| 5/21 04:40 | 74.8 | ↓-1.2 | |
| 5/21 04:50 | 73.7 | ↓-1.1 | |
| 5/21 05:00 | 72.7 | ↓-1.0 | |
| 5/21 05:10 | 71.7 | ↓-1.0 | |
| 5/21 05:20 | 70.9 | ↓-0.8 | |
| 5/21 05:30 | 70.1 | ↓-0.8 | |
| 5/21 05:40 | 69.5 | ↓-0.6 | |
| 5/21 05:50 | 69.0 | ↓-0.5 | |
| 5/21 06:00 | 68.5 | ↓-0.5 | |
| 5/21 06:10 | 68.2 | ↓-0.3 | |
| 5/21 06:20 | 68.0 | ↓-0.2 | |
| 5/21 06:30 | 67.9 | ↓-0.1 | 干潮 |
| 5/21 06:40 | 67.9 | 0 | |
| 5/21 06:50 | 68.0 | ↑0.1 | |
| 5/21 07:00 | 68.3 | ↑0.3 | |
| 5/21 07:10 | 68.6 | ↑0.3 | |
| 5/21 07:20 | 69.0 | ↑0.4 | |
| 5/21 07:30 | 69.6 | ↑0.6 | |
| 5/21 07:40 | 70.2 | ↑0.6 | |
| 5/21 07:50 | 70.9 | ↑0.7 | |
| 5/21 08:00 | 71.6 | ↑0.7 | |
| 5/21 08:10 | 72.5 | ↑0.9 | |
| 5/21 08:20 | 73.4 | ↑0.9 | |
| 5/21 08:30 | 74.3 | ↑0.9 | |
| 5/21 08:40 | 75.2 | ↑0.9 | |
| 5/21 08:50 | 76.2 | ↑1.0 | |
| 5/21 09:00 | 77.2 | ↑1.0 | |
| 5/21 09:10 | 78.2 | ↑1.0 | |
| 5/21 09:20 | 79.1 | ↑0.9 | |
| 5/21 09:30 | 80.1 | ↑1.0 | |
| 5/21 09:40 | 81.0 | ↑0.9 | |
| 5/21 09:50 | 81.8 | ↑0.8 | |
| 5/21 10:00 | 82.6 | ↑0.8 | |
| 5/21 10:10 | 83.3 | ↑0.7 | |
| 5/21 10:20 | 83.9 | ↑0.6 | |
| 5/21 10:30 | 84.5 | ↑0.6 | |
| 5/21 10:40 | 84.9 | ↑0.4 | |
| 5/21 10:50 | 85.2 | ↑0.3 | |
| 5/21 11:00 | 85.4 | ↑0.2 | |
| 5/21 11:10 | 85.5 | ↑0.1 | 満潮 |
| 5/21 11:20 | 85.4 | ↓-0.1 | |
| 5/21 11:30 | 85.2 | ↓-0.2 | |
| 5/21 11:40 | 84.9 | ↓-0.3 | |
| 5/21 11:50 | 84.4 | ↓-0.5 | |
| 5/21 12:00 | 83.8 | ↓-0.6 | |
| 5/21 12:10 | 83.1 | ↓-0.7 | |
| 5/21 12:20 | 82.3 | ↓-0.8 | |
| 5/21 12:30 | 81.3 | ↓-1.0 | |
| 5/21 12:40 | 80.2 | ↓-1.1 | |
| 5/21 12:50 | 79.0 | ↓-1.2 | |
| 5/21 13:00 | 77.7 | ↓-1.3 | |
| 5/21 13:10 | 76.3 | ↓-1.4 | |
| 5/21 13:20 | 74.8 | ↓-1.5 | |
| 5/21 13:30 | 73.2 | ↓-1.6 | |
| 5/21 13:40 | 71.5 | ↓-1.7 | |
| 5/21 13:50 | 69.8 | ↓-1.7 | |
| 5/21 14:00 | 68.0 | ↓-1.8 | |
| 5/21 14:10 | 66.2 | ↓-1.8 | |
| 5/21 14:20 | 64.4 | ↓-1.8 | |
| 5/21 14:30 | 62.5 | ↓-1.9 | |
| 5/21 14:40 | 60.7 | ↓-1.8 | |
| 5/21 14:50 | 58.8 | ↓-1.9 | |
| 5/21 15:00 | 57.0 | ↓-1.8 | |
| 5/21 15:10 | 55.2 | ↓-1.8 | |
| 5/21 15:20 | 53.4 | ↓-1.8 | |
| 5/21 15:30 | 51.7 | ↓-1.7 | |
| 5/21 15:40 | 50.0 | ↓-1.7 | |
| 5/21 15:50 | 48.5 | ↓-1.5 | |
| 5/21 16:00 | 47.0 | ↓-1.5 | |
| 5/21 16:10 | 45.6 | ↓-1.4 | |
| 5/21 16:20 | 44.3 | ↓-1.3 | |
| 5/21 16:30 | 43.1 | ↓-1.2 | |
| 5/21 16:40 | 42.1 | ↓-1.0 | |
| 5/21 16:50 | 41.2 | ↓-0.9 | |
| 5/21 17:00 | 40.4 | ↓-0.8 | |
| 5/21 17:10 | 39.7 | ↓-0.7 | |
| 5/21 17:20 | 39.2 | ↓-0.5 | |
| 5/21 17:30 | 38.9 | ↓-0.3 | |
| 5/21 17:40 | 38.7 | ↓-0.2 | 干潮 |
| 5/21 17:50 | 38.8 | ↑0.1 | |
| 5/21 18:00 | 38.9 | ↑0.1 | |
| 5/21 18:10 | 39.3 | ↑0.4 | |
| 5/21 18:20 | 39.8 | ↑0.5 | |
| 5/21 18:30 | 40.5 | ↑0.7 | |
| 5/21 18:40 | 41.4 | ↑0.9 | |
| 5/21 18:50 | 42.4 | ↑1.0 | |
| 5/21 19:00 | 43.6 | ↑1.2 | |
| 5/21 19:10 | 45.0 | ↑1.4 | |
| 5/21 19:20 | 46.5 | ↑1.5 | |
| 5/21 19:30 | 48.2 | ↑1.7 | |
| 5/21 19:40 | 50.1 | ↑1.9 | |
| 5/21 19:50 | 52.1 | ↑2.0 | |
| 5/21 20:00 | 54.2 | ↑2.1 | |
| 5/21 20:10 | 56.4 | ↑2.2 | |
| 5/21 20:20 | 58.7 | ↑2.3 | |
| 5/21 20:30 | 61.2 | ↑2.5 | |
| 5/21 20:40 | 63.7 | ↑2.5 | |
| 5/21 20:50 | 66.3 | ↑2.6 | |
| 5/21 21:00 | 68.9 | ↑2.6 | |
| 5/21 21:10 | 71.6 | ↑2.7 | 最大潮位差 |
| 5/21 21:20 | 74.2 | ↑2.6 | |
| 5/21 21:30 | 76.9 | ↑2.7 | 最大潮位差 |
| 5/21 21:40 | 79.6 | ↑2.7 | 最大潮位差 |
| 5/21 21:50 | 82.2 | ↑2.6 | |
| 5/21 22:00 | 84.8 | ↑2.6 | |
| 5/21 22:10 | 87.4 | ↑2.6 | |
| 5/21 22:20 | 89.8 | ↑2.4 | |
| 5/21 22:30 | 92.2 | ↑2.4 | |
| 5/21 22:40 | 94.4 | ↑2.2 | |
| 5/21 22:50 | 96.5 | ↑2.1 | |
| 5/21 23:00 | 98.5 | ↑2.0 | |
| 5/21 23:10 | 100.4 | ↑1.9 | |
| 5/21 23:20 | 102.0 | ↑1.6 | |
| 5/21 23:30 | 103.6 | ↑1.6 | |
| 5/21 23:40 | 104.9 | ↑1.3 | |
| 5/21 23:50 | 106.0 | ↑1.1 |