| 満潮 | 干潮 | 満潮 | 干潮 |
|
20
(火) |
13:28 | 06:34 | 23:44 | 17:14 |
| 72cm | 30cm | 98cm | 66cm | |
|
||||
函館（北海道）2021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 | 87.5 | ↓-1.1 | |
| 7/20 00:10 | 86.2 | ↓-1.3 | |
| 7/20 00:20 | 84.8 | ↓-1.4 | |
| 7/20 00:30 | 83.3 | ↓-1.5 | |
| 7/20 00:40 | 81.7 | ↓-1.6 | |
| 7/20 00:50 | 79.9 | ↓-1.8 | |
| 7/20 01:00 | 78.1 | ↓-1.8 | |
| 7/20 01:10 | 76.2 | ↓-1.9 | |
| 7/20 01:20 | 74.3 | ↓-1.9 | |
| 7/20 01:30 | 72.3 | ↓-2.0 | |
| 7/20 01:40 | 70.2 | ↓-2.1 | |
| 7/20 01:50 | 68.1 | ↓-2.1 | |
| 7/20 02:00 | 66.0 | ↓-2.1 | |
| 7/20 02:10 | 63.8 | ↓-2.2 | 最大潮位差 |
| 7/20 02:20 | 61.7 | ↓-2.1 | |
| 7/20 02:30 | 59.5 | ↓-2.2 | 最大潮位差 |
| 7/20 02:40 | 57.4 | ↓-2.1 | |
| 7/20 02:50 | 55.3 | ↓-2.1 | |
| 7/20 03:00 | 53.2 | ↓-2.1 | |
| 7/20 03:10 | 51.2 | ↓-2.0 | |
| 7/20 03:20 | 49.2 | ↓-2.0 | |
| 7/20 03:30 | 47.3 | ↓-1.9 | |
| 7/20 03:40 | 45.5 | ↓-1.8 | |
| 7/20 03:50 | 43.7 | ↓-1.8 | |
| 7/20 04:00 | 42.1 | ↓-1.6 | |
| 7/20 04:10 | 40.5 | ↓-1.6 | |
| 7/20 04:20 | 39.0 | ↓-1.5 | |
| 7/20 04:30 | 37.7 | ↓-1.3 | |
| 7/20 04:40 | 36.4 | ↓-1.3 | |
| 7/20 04:50 | 35.3 | ↓-1.1 | |
| 7/20 05:00 | 34.2 | ↓-1.1 | |
| 7/20 05:10 | 33.3 | ↓-0.9 | |
| 7/20 05:20 | 32.5 | ↓-0.8 | |
| 7/20 05:30 | 31.8 | ↓-0.7 | |
| 7/20 05:40 | 31.1 | ↓-0.7 | |
| 7/20 05:50 | 30.6 | ↓-0.5 | |
| 7/20 06:00 | 30.3 | ↓-0.3 | |
| 7/20 06:10 | 30.0 | ↓-0.3 | |
| 7/20 06:20 | 29.8 | ↓-0.2 | |
| 7/20 06:30 | 29.7 | ↓-0.1 | 干潮 |
| 7/20 06:40 | 29.7 | 0 | |
| 7/20 06:50 | 29.9 | ↑0.2 | |
| 7/20 07:00 | 30.1 | ↑0.2 | |
| 7/20 07:10 | 30.4 | ↑0.3 | |
| 7/20 07:20 | 30.9 | ↑0.5 | |
| 7/20 07:30 | 31.5 | ↑0.6 | |
| 7/20 07:40 | 32.2 | ↑0.7 | |
| 7/20 07:50 | 33.0 | ↑0.8 | |
| 7/20 08:00 | 33.9 | ↑0.9 | |
| 7/20 08:10 | 35.0 | ↑1.1 | |
| 7/20 08:20 | 36.1 | ↑1.1 | |
| 7/20 08:30 | 37.4 | ↑1.3 | |
| 7/20 08:40 | 38.7 | ↑1.3 | |
| 7/20 08:50 | 40.2 | ↑1.5 | |
| 7/20 09:00 | 41.7 | ↑1.5 | |
| 7/20 09:10 | 43.4 | ↑1.7 | |
| 7/20 09:20 | 45.0 | ↑1.6 | |
| 7/20 09:30 | 46.8 | ↑1.8 | |
| 7/20 09:40 | 48.5 | ↑1.7 | |
| 7/20 09:50 | 50.3 | ↑1.8 | |
| 7/20 10:00 | 52.1 | ↑1.8 | |
| 7/20 10:10 | 53.8 | ↑1.7 | |
| 7/20 10:20 | 55.5 | ↑1.7 | |
| 7/20 10:30 | 57.2 | ↑1.7 | |
| 7/20 10:40 | 58.8 | ↑1.6 | |
| 7/20 10:50 | 60.4 | ↑1.6 | |
| 7/20 11:00 | 61.8 | ↑1.4 | |
| 7/20 11:10 | 63.2 | ↑1.4 | |
| 7/20 11:20 | 64.5 | ↑1.3 | |
| 7/20 11:30 | 65.6 | ↑1.1 | |
| 7/20 11:40 | 66.7 | ↑1.1 | |
| 7/20 11:50 | 67.6 | ↑0.9 | |
| 7/20 12:00 | 68.5 | ↑0.9 | |
| 7/20 12:10 | 69.2 | ↑0.7 | |
| 7/20 12:20 | 69.9 | ↑0.7 | |
| 7/20 12:30 | 70.4 | ↑0.5 | |
| 7/20 12:40 | 70.8 | ↑0.4 | |
| 7/20 12:50 | 71.1 | ↑0.3 | |
| 7/20 13:00 | 71.4 | ↑0.3 | |
| 7/20 13:10 | 71.6 | ↑0.2 | |
| 7/20 13:20 | 71.6 | 0 | 満潮 |
| 7/20 13:30 | 71.7 | ↑0.1 | |
| 7/20 13:40 | 71.6 | ↓-0.1 | |
| 7/20 13:50 | 71.5 | ↓-0.1 | |
| 7/20 14:00 | 71.3 | ↓-0.2 | |
| 7/20 14:10 | 71.1 | ↓-0.2 | |
| 7/20 14:20 | 70.9 | ↓-0.2 | |
| 7/20 14:30 | 70.6 | ↓-0.3 | |
| 7/20 14:40 | 70.2 | ↓-0.4 | |
| 7/20 14:50 | 69.9 | ↓-0.3 | |
| 7/20 15:00 | 69.5 | ↓-0.4 | |
| 7/20 15:10 | 69.1 | ↓-0.4 | |
| 7/20 15:20 | 68.7 | ↓-0.4 | |
| 7/20 15:30 | 68.3 | ↓-0.4 | |
| 7/20 15:40 | 67.9 | ↓-0.4 | |
| 7/20 15:50 | 67.6 | ↓-0.3 | |
| 7/20 16:00 | 67.2 | ↓-0.4 | |
| 7/20 16:10 | 66.9 | ↓-0.3 | |
| 7/20 16:20 | 66.6 | ↓-0.3 | |
| 7/20 16:30 | 66.4 | ↓-0.2 | |
| 7/20 16:40 | 66.2 | ↓-0.2 | |
| 7/20 16:50 | 66.0 | ↓-0.2 | |
| 7/20 17:00 | 65.9 | ↓-0.1 | |
| 7/20 17:10 | 65.9 | 0 | 干潮 |
| 7/20 17:20 | 65.9 | 0 | |
| 7/20 17:30 | 66.0 | ↑0.1 | |
| 7/20 17:40 | 66.1 | ↑0.1 | |
| 7/20 17:50 | 66.3 | ↑0.2 | |
| 7/20 18:00 | 66.5 | ↑0.2 | |
| 7/20 18:10 | 66.8 | ↑0.3 | |
| 7/20 18:20 | 67.2 | ↑0.4 | |
| 7/20 18:30 | 67.6 | ↑0.4 | |
| 7/20 18:40 | 68.0 | ↑0.4 | |
| 7/20 18:50 | 68.6 | ↑0.6 | |
| 7/20 19:00 | 69.1 | ↑0.5 | |
| 7/20 19:10 | 69.8 | ↑0.7 | |
| 7/20 19:20 | 70.5 | ↑0.7 | |
| 7/20 19:30 | 71.2 | ↑0.7 | |
| 7/20 19:40 | 72.1 | ↑0.9 | |
| 7/20 19:50 | 72.9 | ↑0.8 | |
| 7/20 20:00 | 73.9 | ↑1.0 | |
| 7/20 20:10 | 74.9 | ↑1.0 | |
| 7/20 20:20 | 76.0 | ↑1.1 | |
| 7/20 20:30 | 77.2 | ↑1.2 | |
| 7/20 20:40 | 78.4 | ↑1.2 | |
| 7/20 20:50 | 79.6 | ↑1.2 | |
| 7/20 21:00 | 80.9 | ↑1.3 | |
| 7/20 21:10 | 82.3 | ↑1.4 | |
| 7/20 21:20 | 83.7 | ↑1.4 | |
| 7/20 21:30 | 85.0 | ↑1.3 | |
| 7/20 21:40 | 86.4 | ↑1.4 | |
| 7/20 21:50 | 87.8 | ↑1.4 | |
| 7/20 22:00 | 89.1 | ↑1.3 | |
| 7/20 22:10 | 90.4 | ↑1.3 | |
| 7/20 22:20 | 91.6 | ↑1.2 | |
| 7/20 22:30 | 92.8 | ↑1.2 | |
| 7/20 22:40 | 93.8 | ↑1.0 | |
| 7/20 22:50 | 94.7 | ↑0.9 | |
| 7/20 23:00 | 95.5 | ↑0.8 | |
| 7/20 23:10 | 96.1 | ↑0.6 | |
| 7/20 23:20 | 96.6 | ↑0.5 | |
| 7/20 23:30 | 96.9 | ↑0.3 | |
| 7/20 23:40 | 97.0 | ↑0.1 | 満潮 |
| 7/20 23:50 | 97.0 | 0 |