| 満潮 | 干潮 | 満潮 | 干潮 |
|
20
(土) |
06:55 | 01:09 | 19:51 | 13:07 |
| 118cm | 68cm | 127cm | 46cm | |
|
||||
那珂湊（茨城）2030年07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 |
|---|---|---|---|
| 7/20 00:00 | 72.1 | ↓-1.5 | |
| 7/20 00:10 | 70.8 | ↓-1.3 | |
| 7/20 00:20 | 69.7 | ↓-1.1 | |
| 7/20 00:30 | 68.8 | ↓-0.9 | |
| 7/20 00:40 | 68.1 | ↓-0.7 | |
| 7/20 00:50 | 67.6 | ↓-0.5 | |
| 7/20 01:00 | 67.3 | ↓-0.3 | 干潮 |
| 7/20 01:10 | 67.3 | 0 | |
| 7/20 01:20 | 67.4 | ↑0.1 | |
| 7/20 01:30 | 67.8 | ↑0.4 | |
| 7/20 01:40 | 68.3 | ↑0.5 | |
| 7/20 01:50 | 69.1 | ↑0.8 | |
| 7/20 02:00 | 70.0 | ↑0.9 | |
| 7/20 02:10 | 71.1 | ↑1.1 | |
| 7/20 02:20 | 72.4 | ↑1.3 | |
| 7/20 02:30 | 73.8 | ↑1.4 | |
| 7/20 02:40 | 75.3 | ↑1.5 | |
| 7/20 02:50 | 77.0 | ↑1.7 | |
| 7/20 03:00 | 78.8 | ↑1.8 | |
| 7/20 03:10 | 80.8 | ↑2.0 | |
| 7/20 03:20 | 82.8 | ↑2.0 | |
| 7/20 03:30 | 84.9 | ↑2.1 | |
| 7/20 03:40 | 87.0 | ↑2.1 | |
| 7/20 03:50 | 89.2 | ↑2.2 | |
| 7/20 04:00 | 91.4 | ↑2.2 | |
| 7/20 04:10 | 93.6 | ↑2.2 | |
| 7/20 04:20 | 95.8 | ↑2.2 | |
| 7/20 04:30 | 98.1 | ↑2.3 | |
| 7/20 04:40 | 100.2 | ↑2.1 | |
| 7/20 04:50 | 102.3 | ↑2.1 | |
| 7/20 05:00 | 104.4 | ↑2.1 | |
| 7/20 05:10 | 106.3 | ↑1.9 | |
| 7/20 05:20 | 108.1 | ↑1.8 | |
| 7/20 05:30 | 109.9 | ↑1.8 | |
| 7/20 05:40 | 111.4 | ↑1.5 | |
| 7/20 05:50 | 112.8 | ↑1.4 | |
| 7/20 06:00 | 114.1 | ↑1.3 | |
| 7/20 06:10 | 115.1 | ↑1.0 | |
| 7/20 06:20 | 116.0 | ↑0.9 | |
| 7/20 06:30 | 116.7 | ↑0.7 | |
| 7/20 06:40 | 117.1 | ↑0.4 | |
| 7/20 06:50 | 117.3 | ↑0.2 | 満潮 |
| 7/20 07:00 | 117.3 | 0 | |
| 7/20 07:10 | 117.0 | ↓-0.3 | |
| 7/20 07:20 | 116.5 | ↓-0.5 | |
| 7/20 07:30 | 115.8 | ↓-0.7 | |
| 7/20 07:40 | 114.8 | ↓-1.0 | |
| 7/20 07:50 | 113.6 | ↓-1.2 | |
| 7/20 08:00 | 112.1 | ↓-1.5 | |
| 7/20 08:10 | 110.4 | ↓-1.7 | |
| 7/20 08:20 | 108.6 | ↓-1.8 | |
| 7/20 08:30 | 106.5 | ↓-2.1 | |
| 7/20 08:40 | 104.2 | ↓-2.3 | |
| 7/20 08:50 | 101.7 | ↓-2.5 | |
| 7/20 09:00 | 99.1 | ↓-2.6 | |
| 7/20 09:10 | 96.4 | ↓-2.7 | |
| 7/20 09:20 | 93.6 | ↓-2.8 | |
| 7/20 09:30 | 90.6 | ↓-3.0 | |
| 7/20 09:40 | 87.6 | ↓-3.0 | |
| 7/20 09:50 | 84.5 | ↓-3.1 | |
| 7/20 10:00 | 81.5 | ↓-3.0 | |
| 7/20 10:10 | 78.4 | ↓-3.1 | |
| 7/20 10:20 | 75.3 | ↓-3.1 | |
| 7/20 10:30 | 72.3 | ↓-3.0 | |
| 7/20 10:40 | 69.3 | ↓-3.0 | |
| 7/20 10:50 | 66.5 | ↓-2.8 | |
| 7/20 11:00 | 63.7 | ↓-2.8 | |
| 7/20 11:10 | 61.1 | ↓-2.6 | |
| 7/20 11:20 | 58.7 | ↓-2.4 | |
| 7/20 11:30 | 56.4 | ↓-2.3 | |
| 7/20 11:40 | 54.3 | ↓-2.1 | |
| 7/20 11:50 | 52.4 | ↓-1.9 | |
| 7/20 12:00 | 50.7 | ↓-1.7 | |
| 7/20 12:10 | 49.2 | ↓-1.5 | |
| 7/20 12:20 | 47.9 | ↓-1.3 | |
| 7/20 12:30 | 46.9 | ↓-1.0 | |
| 7/20 12:40 | 46.2 | ↓-0.7 | |
| 7/20 12:50 | 45.6 | ↓-0.6 | |
| 7/20 13:00 | 45.4 | ↓-0.2 | 干潮 |
| 7/20 13:10 | 45.3 | ↓-0.1 | |
| 7/20 13:20 | 45.5 | ↑0.2 | |
| 7/20 13:30 | 46.0 | ↑0.5 | |
| 7/20 13:40 | 46.7 | ↑0.7 | |
| 7/20 13:50 | 47.6 | ↑0.9 | |
| 7/20 14:00 | 48.8 | ↑1.2 | |
| 7/20 14:10 | 50.1 | ↑1.3 | |
| 7/20 14:20 | 51.7 | ↑1.6 | |
| 7/20 14:30 | 53.5 | ↑1.8 | |
| 7/20 14:40 | 55.5 | ↑2.0 | |
| 7/20 14:50 | 57.6 | ↑2.1 | |
| 7/20 15:00 | 59.9 | ↑2.3 | |
| 7/20 15:10 | 62.4 | ↑2.5 | |
| 7/20 15:20 | 65.0 | ↑2.6 | |
| 7/20 15:30 | 67.7 | ↑2.7 | |
| 7/20 15:40 | 70.5 | ↑2.8 | |
| 7/20 15:50 | 73.4 | ↑2.9 | |
| 7/20 16:00 | 76.4 | ↑3.0 | |
| 7/20 16:10 | 79.4 | ↑3.0 | |
| 7/20 16:20 | 82.5 | ↑3.1 | |
| 7/20 16:30 | 85.6 | ↑3.1 | |
| 7/20 16:40 | 88.8 | ↑3.2 | 最大潮位差 |
| 7/20 16:50 | 91.9 | ↑3.1 | |
| 7/20 17:00 | 94.9 | ↑3.0 | |
| 7/20 17:10 | 98.0 | ↑3.1 | |
| 7/20 17:20 | 100.9 | ↑2.9 | |
| 7/20 17:30 | 103.8 | ↑2.9 | |
| 7/20 17:40 | 106.6 | ↑2.8 | |
| 7/20 17:50 | 109.3 | ↑2.7 | |
| 7/20 18:00 | 111.8 | ↑2.5 | |
| 7/20 18:10 | 114.1 | ↑2.3 | |
| 7/20 18:20 | 116.3 | ↑2.2 | |
| 7/20 18:30 | 118.3 | ↑2.0 | |
| 7/20 18:40 | 120.1 | ↑1.8 | |
| 7/20 18:50 | 121.7 | ↑1.6 | |
| 7/20 19:00 | 123.1 | ↑1.4 | |
| 7/20 19:10 | 124.2 | ↑1.1 | |
| 7/20 19:20 | 125.1 | ↑0.9 | |
| 7/20 19:30 | 125.7 | ↑0.6 | |
| 7/20 19:40 | 126.1 | ↑0.4 | |
| 7/20 19:50 | 126.2 | ↑0.1 | 満潮 |
| 7/20 20:00 | 126.1 | ↓-0.1 | |
| 7/20 20:10 | 125.7 | ↓-0.4 | |
| 7/20 20:20 | 125.0 | ↓-0.7 | |
| 7/20 20:30 | 124.1 | ↓-0.9 | |
| 7/20 20:40 | 123.0 | ↓-1.1 | |
| 7/20 20:50 | 121.7 | ↓-1.3 | |
| 7/20 21:00 | 120.1 | ↓-1.6 | |
| 7/20 21:10 | 118.3 | ↓-1.8 | |
| 7/20 21:20 | 116.4 | ↓-1.9 | |
| 7/20 21:30 | 114.3 | ↓-2.1 | |
| 7/20 21:40 | 112.0 | ↓-2.3 | |
| 7/20 21:50 | 109.6 | ↓-2.4 | |
| 7/20 22:00 | 107.1 | ↓-2.5 | |
| 7/20 22:10 | 104.5 | ↓-2.6 | |
| 7/20 22:20 | 101.8 | ↓-2.7 | |
| 7/20 22:30 | 99.1 | ↓-2.7 | |
| 7/20 22:40 | 96.4 | ↓-2.7 | |
| 7/20 22:50 | 93.7 | ↓-2.7 | |
| 7/20 23:00 | 91.0 | ↓-2.7 | |
| 7/20 23:10 | 88.3 | ↓-2.7 | |
| 7/20 23:20 | 85.7 | ↓-2.6 | |
| 7/20 23:30 | 83.2 | ↓-2.5 | |
| 7/20 23:40 | 80.7 | ↓-2.5 | |
| 7/20 23:50 | 78.4 | ↓-2.3 |